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/*
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* Asterisk - - An open source telephony toolkit .
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*
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* Copyright ( C ) 2006 , Digium , Inc .
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*
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* Steve Murphy < murf @ parsetree . com >
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*
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* See http : //www.asterisk.org for more information about
* the Asterisk project . Please do not directly contact
* any of the maintainers of this project for assistance ;
* the project provides a web site , mailing lists and IRC
* channels for your use .
*
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* This program is free software , distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree .
*/
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/*! \file
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*
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* \ brief Compile symbolic Asterisk Extension Logic into Asterisk extensions , version 2.
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*
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*/
# include <sys/types.h>
# include <stdlib.h>
# include <stdio.h>
# include <string.h>
# include <ctype.h>
# include <errno.h>
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# include <regex.h>
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# include "asterisk.h"
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ASTERISK_FILE_VERSION ( __FILE__ , " $Revision$ " )
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# include "asterisk/pbx.h"
# include "asterisk/config.h"
# include "asterisk/module.h"
# include "asterisk/logger.h"
# include "asterisk/cli.h"
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# include "asterisk/app.h"
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# include "asterisk/callerid.h"
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# include "asterisk/ael_structs.h"
# ifdef AAL_ARGCHECK
# include "asterisk/argdesc.h"
# endif
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static char expr_output [ 2096 ] ;
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/* these functions are in ../ast_expr2.fl */
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# ifdef __AST_DEBUG_MALLOC
static void FREE ( void * ptr )
{
free ( ptr ) ;
}
# else
# define FREE free
# endif
# define DEBUG_READ (1 << 0)
# define DEBUG_TOKENS (1 << 1)
# define DEBUG_MACROS (1 << 2)
# define DEBUG_CONTEXTS (1 << 3)
static int aeldebug = 0 ;
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static char * dtext = " Asterisk Extension Language Compiler v2 " ;
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static char * config = " extensions.ael " ;
static char * registrar = " pbx_ael " ;
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static int errs , warns , notes ;
# ifndef AAL_ARGCHECK
/* for the time being, short circuit all the AAL related structures
without permanently removing the code ; after / during the AAL
development , this code can be properly re - instated
*/
/* null definitions for structs passed down the infrastructure */
struct argapp
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{
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struct argapp * next ;
} ;
# endif
# ifdef AAL_ARGCHECK
int option_matches_j ( struct argdesc * should , pval * is , struct argapp * app ) ;
int option_matches ( struct argdesc * should , pval * is , struct argapp * app ) ;
int ael_is_funcname ( char * name ) ;
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# endif
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int check_app_args ( pval * appcall , pval * arglist , struct argapp * app ) ;
void check_pval ( pval * item , struct argapp * apps ) ;
void check_pval_item ( pval * item , struct argapp * apps ) ;
void check_switch_expr ( pval * item , struct argapp * apps ) ;
void ast_expr_register_extra_error_info ( char * errmsg ) ;
void ast_expr_clear_extra_error_info ( void ) ;
int ast_expr ( char * expr , char * buf , int length ) ;
struct pval * find_macro ( char * name ) ;
struct pval * find_context ( char * name ) ;
struct pval * find_context ( char * name ) ;
struct pval * find_macro ( char * name ) ;
struct ael_priority * new_prio ( void ) ;
struct ael_extension * new_exten ( void ) ;
void linkprio ( struct ael_extension * exten , struct ael_priority * prio ) ;
void destroy_extensions ( struct ael_extension * exten ) ;
void linkexten ( struct ael_extension * exten , struct ael_extension * add ) ;
void gen_prios ( struct ael_extension * exten , char * label , pval * statement , struct ael_extension * mother_exten ) ;
void set_priorities ( struct ael_extension * exten ) ;
void add_extensions ( struct ael_extension * exten , struct ast_context * context ) ;
void ast_compile_ael2 ( struct ast_context * * local_contexts , struct pval * root ) ;
void destroy_pval ( pval * item ) ;
void destroy_pval_item ( pval * item ) ;
int is_float ( char * arg ) ;
int is_int ( char * arg ) ;
int is_empty ( char * arg ) ;
static pval * current_db ;
static pval * current_context ;
static pval * current_extension ;
static const char * description ( void ) ;
static const char * key ( void ) ;
static char * match_context ;
static char * match_exten ;
static char * match_label ;
static int in_abstract_context ;
static int count_labels ; /* true, put matcher in label counting mode */
static int label_count ; /* labels are only meant to be counted in a context or exten */
static int return_on_context_match ;
static pval * last_matched_label ;
struct pval * match_pval ( pval * item ) ;
static void check_timerange ( pval * p ) ;
static void check_dow ( pval * DOW ) ;
static void check_day ( pval * DAY ) ;
static void check_month ( pval * MON ) ;
static void check_expr2_input ( pval * expr , char * str ) ;
static int extension_matches ( pval * here , char * exten , char * pattern ) ;
static void check_goto ( pval * item ) ;
static void find_pval_goto_item ( pval * item , int lev ) ;
static void find_pval_gotos ( pval * item , int lev ) ;
/* PRETTY PRINTER FOR AEL: ============================================================================= */
void print_pval ( FILE * fin , pval * item , int depth )
{
int i ;
pval * lp ;
for ( i = 0 ; i < depth ; i + + ) {
fprintf ( fin , " \t " ) ; /* depth == indentation */
}
switch ( item - > type ) {
case PV_WORD :
fprintf ( fin , " %s; \n " , item - > u1 . str ) ; /* usually, words are encapsulated in something else */
break ;
case PV_MACRO :
fprintf ( fin , " macro %s( " , item - > u1 . str ) ;
for ( lp = item - > u2 . arglist ; lp ; lp = lp - > next ) {
if ( lp ! = item - > u2 . arglist )
fprintf ( fin , " , " ) ;
fprintf ( fin , " %s " , lp - > u1 . str ) ;
}
fprintf ( fin , " ) { \n " ) ;
print_pval_list ( fin , item - > u3 . macro_statements , depth + 1 ) ;
for ( i = 0 ; i < depth ; i + + ) {
fprintf ( fin , " \t " ) ; /* depth == indentation */
}
fprintf ( fin , " }; \n \n " ) ;
break ;
case PV_CONTEXT :
if ( item - > u3 . abstract )
fprintf ( fin , " abstract context %s { \n " , item - > u1 . str ) ;
else
fprintf ( fin , " context %s { \n " , item - > u1 . str ) ;
print_pval_list ( fin , item - > u2 . statements , depth + 1 ) ;
for ( i = 0 ; i < depth ; i + + ) {
fprintf ( fin , " \t " ) ; /* depth == indentation */
}
fprintf ( fin , " }; \n \n " ) ;
break ;
case PV_MACRO_CALL :
fprintf ( fin , " &%s( " , item - > u1 . str ) ;
for ( lp = item - > u2 . arglist ; lp ; lp = lp - > next ) {
if ( lp ! = item - > u2 . arglist )
fprintf ( fin , " , " ) ;
fprintf ( fin , " %s " , lp - > u1 . str ) ;
}
fprintf ( fin , " ); \n " ) ;
break ;
case PV_APPLICATION_CALL :
fprintf ( fin , " %s( " , item - > u1 . str ) ;
for ( lp = item - > u2 . arglist ; lp ; lp = lp - > next ) {
if ( lp ! = item - > u2 . arglist )
fprintf ( fin , " , " ) ;
fprintf ( fin , " %s " , lp - > u1 . str ) ;
}
fprintf ( fin , " ); \n " ) ;
break ;
case PV_CASE :
fprintf ( fin , " case %s: \n " , item - > u1 . str ) ;
print_pval_list ( fin , item - > u2 . statements , depth + 1 ) ;
break ;
case PV_PATTERN :
fprintf ( fin , " pattern %s: \n " , item - > u1 . str ) ;
print_pval_list ( fin , item - > u2 . statements , depth + 1 ) ;
break ;
case PV_DEFAULT :
fprintf ( fin , " default: \n " ) ;
print_pval_list ( fin , item - > u2 . statements , depth + 1 ) ;
break ;
case PV_CATCH :
fprintf ( fin , " catch %s { \n " , item - > u1 . str ) ;
print_pval_list ( fin , item - > u2 . statements , depth + 1 ) ;
for ( i = 0 ; i < depth ; i + + ) {
fprintf ( fin , " \t " ) ; /* depth == indentation */
}
fprintf ( fin , " }; \n " ) ;
break ;
case PV_SWITCHES :
fprintf ( fin , " switches { \n " ) ;
print_pval_list ( fin , item - > u1 . list , depth + 1 ) ;
for ( i = 0 ; i < depth ; i + + ) {
fprintf ( fin , " \t " ) ; /* depth == indentation */
}
fprintf ( fin , " }; \n " ) ;
break ;
case PV_ESWITCHES :
fprintf ( fin , " eswitches { \n " ) ;
print_pval_list ( fin , item - > u1 . list , depth + 1 ) ;
for ( i = 0 ; i < depth ; i + + ) {
fprintf ( fin , " \t " ) ; /* depth == indentation */
}
fprintf ( fin , " }; \n " ) ;
break ;
case PV_INCLUDES :
fprintf ( fin , " includes { \n " ) ;
for ( lp = item - > u1 . list ; lp ; lp = lp - > next ) {
for ( i = 0 ; i < depth + 1 ; i + + ) {
fprintf ( fin , " \t " ) ; /* depth == indentation */
}
fprintf ( fin , " %s " , lp - > u1 . str ) ; /* usually, words are encapsulated in something else */
if ( lp - > u2 . arglist )
fprintf ( fin , " |%s|%s|%s|%s " ,
lp - > u2 . arglist - > u1 . str ,
lp - > u2 . arglist - > next - > u1 . str ,
lp - > u2 . arglist - > next - > next - > u1 . str ,
lp - > u2 . arglist - > next - > next - > next - > u1 . str
) ;
fprintf ( fin , " ; \n " ) ; /* usually, words are encapsulated in something else */
}
print_pval_list ( fin , item - > u1 . list , depth + 1 ) ;
for ( i = 0 ; i < depth ; i + + ) {
fprintf ( fin , " \t " ) ; /* depth == indentation */
}
fprintf ( fin , " }; \n " ) ;
break ;
case PV_STATEMENTBLOCK :
fprintf ( fin , " { \n " ) ;
print_pval_list ( fin , item - > u1 . list , depth + 1 ) ;
for ( i = 0 ; i < depth ; i + + ) {
fprintf ( fin , " \t " ) ; /* depth == indentation */
}
fprintf ( fin , " }; \n " ) ;
break ;
case PV_VARDEC :
fprintf ( fin , " %s=%s; \n " , item - > u1 . str , item - > u2 . val ) ;
break ;
case PV_GOTO :
fprintf ( fin , " goto %s " , item - > u1 . list - > u1 . str ) ;
if ( item - > u1 . list - > next )
fprintf ( fin , " |%s " , item - > u1 . list - > next - > u1 . str ) ;
if ( item - > u1 . list - > next & & item - > u1 . list - > next - > next )
fprintf ( fin , " |%s " , item - > u1 . list - > next - > next - > u1 . str ) ;
fprintf ( fin , " \n " ) ;
break ;
case PV_LABEL :
fprintf ( fin , " %s: \n " , item - > u1 . str ) ;
break ;
case PV_FOR :
fprintf ( fin , " for (%s; %s; %s) \n " , item - > u1 . for_init , item - > u2 . for_test , item - > u3 . for_inc ) ;
print_pval_list ( fin , item - > u4 . for_statements , depth + 1 ) ;
break ;
case PV_WHILE :
fprintf ( fin , " while (%s) \n " , item - > u1 . str ) ;
print_pval_list ( fin , item - > u2 . statements , depth + 1 ) ;
break ;
case PV_BREAK :
fprintf ( fin , " break; \n " ) ;
break ;
case PV_RETURN :
fprintf ( fin , " return; \n " ) ;
break ;
case PV_CONTINUE :
fprintf ( fin , " continue; \n " ) ;
break ;
case PV_RANDOM :
case PV_IFTIME :
case PV_IF :
if ( item - > type = = PV_IFTIME ) {
fprintf ( fin , " ifTime ( %s|%s|%s|%s ) \n " ,
item - > u1 . list - > u1 . str ,
item - > u1 . list - > next - > u1 . str ,
item - > u1 . list - > next - > next - > u1 . str ,
item - > u1 . list - > next - > next - > next - > u1 . str
) ;
} else if ( item - > type = = PV_RANDOM ) {
fprintf ( fin , " random ( %s ) \n " , item - > u1 . str ) ;
} else
fprintf ( fin , " if ( %s ) \n " , item - > u1 . str ) ;
if ( item - > u2 . statements & & item - > u2 . statements - > next ) {
for ( i = 0 ; i < depth ; i + + ) {
fprintf ( fin , " \t " ) ; /* depth == indentation */
}
fprintf ( fin , " { \n " ) ;
print_pval_list ( fin , item - > u2 . statements , depth + 1 ) ;
for ( i = 0 ; i < depth ; i + + ) {
fprintf ( fin , " \t " ) ; /* depth == indentation */
}
if ( item - > u3 . else_statements )
fprintf ( fin , " } \n " ) ;
else
fprintf ( fin , " }; \n " ) ;
} else if ( item - > u2 . statements ) {
print_pval_list ( fin , item - > u2 . statements , depth + 1 ) ;
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} else {
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if ( item - > u3 . else_statements )
fprintf ( fin , " {} " ) ;
else
fprintf ( fin , " {}; " ) ;
}
if ( item - > u3 . else_statements ) {
for ( i = 0 ; i < depth ; i + + ) {
fprintf ( fin , " \t " ) ; /* depth == indentation */
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}
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fprintf ( fin , " else \n " ) ;
print_pval_list ( fin , item - > u3 . else_statements , depth ) ;
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}
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break ;
case PV_SWITCH :
fprintf ( fin , " switch( %s ) { \n " , item - > u1 . str ) ;
print_pval_list ( fin , item - > u2 . statements , depth + 1 ) ;
for ( i = 0 ; i < depth ; i + + ) {
fprintf ( fin , " \t " ) ; /* depth == indentation */
}
fprintf ( fin , " } \n " ) ;
break ;
case PV_EXTENSION :
if ( item - > u4 . regexten )
fprintf ( fin , " regexten " ) ;
if ( item - > u3 . hints )
fprintf ( fin , " hints(%s) " , item - > u3 . hints ) ;
fprintf ( fin , " %s => \n " , item - > u1 . str ) ;
print_pval_list ( fin , item - > u2 . statements , depth + 1 ) ;
break ;
case PV_IGNOREPAT :
fprintf ( fin , " ignorepat => %s \n " , item - > u1 . str ) ;
break ;
case PV_GLOBALS :
fprintf ( fin , " globals { \n " ) ;
print_pval_list ( fin , item - > u1 . statements , depth + 1 ) ;
for ( i = 0 ; i < depth ; i + + ) {
fprintf ( fin , " \t " ) ; /* depth == indentation */
}
fprintf ( fin , " } \n " ) ;
break ;
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}
}
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void print_pval_list ( FILE * fin , pval * item , int depth )
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{
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pval * i ;
for ( i = item ; i ; i = i - > next ) {
print_pval ( fin , i , depth ) ;
}
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}
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void ael2_print ( char * fname , pval * tree )
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{
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FILE * fin = fopen ( fname , " w " ) ;
if ( ! fin ) {
ast_log ( LOG_ERROR , " Couldn't open %s for writing. \n " , fname ) ;
return ;
}
print_pval_list ( fin , tree , 0 ) ;
fclose ( fin ) ;
}
/* EMPTY TEMPLATE FUNCS FOR AEL TRAVERSAL: ============================================================================= */
void traverse_pval_template ( pval * item , int depth ) ;
void traverse_pval_item_template ( pval * item , int depth ) ;
void traverse_pval_item_template ( pval * item , int depth ) /* depth comes in handy for a pretty print (indentation),
but you may not need it */
{
pval * lp ;
switch ( item - > type ) {
case PV_WORD :
/* fields: item->u1.str == string associated with this (word). */
break ;
case PV_MACRO :
/* fields: item->u1.str == name of macro
item - > u2 . arglist = = pval list of PV_WORD arguments of macro , as given by user
item - > u2 . arglist - > u1 . str = = argument
item - > u2 . arglist - > next = = next arg
item - > u3 . macro_statements = = pval list of statements in macro body .
*/
for ( lp = item - > u2 . arglist ; lp ; lp = lp - > next ) {
}
traverse_pval_item_template ( item - > u3 . macro_statements , depth + 1 ) ;
break ;
case PV_CONTEXT :
/* fields: item->u1.str == name of context
item - > u2 . statements = = pval list of statements in context body
item - > u3 . abstract = = int 1 if an abstract keyword were present
*/
traverse_pval_item_template ( item - > u2 . statements , depth + 1 ) ;
break ;
case PV_MACRO_CALL :
/* fields: item->u1.str == name of macro to call
item - > u2 . arglist = = pval list of PV_WORD arguments of macro call , as given by user
item - > u2 . arglist - > u1 . str = = argument
item - > u2 . arglist - > next = = next arg
*/
for ( lp = item - > u2 . arglist ; lp ; lp = lp - > next ) {
}
break ;
case PV_APPLICATION_CALL :
/* fields: item->u1.str == name of application to call
item - > u2 . arglist = = pval list of PV_WORD arguments of macro call , as given by user
item - > u2 . arglist - > u1 . str = = argument
item - > u2 . arglist - > next = = next arg
*/
for ( lp = item - > u2 . arglist ; lp ; lp = lp - > next ) {
}
break ;
case PV_CASE :
/* fields: item->u1.str == value of case
item - > u2 . statements = = pval list of statements under the case
*/
traverse_pval_item_template ( item - > u2 . statements , depth + 1 ) ;
break ;
case PV_PATTERN :
/* fields: item->u1.str == value of case
item - > u2 . statements = = pval list of statements under the case
*/
traverse_pval_item_template ( item - > u2 . statements , depth + 1 ) ;
break ;
case PV_DEFAULT :
/* fields:
item - > u2 . statements = = pval list of statements under the case
*/
traverse_pval_item_template ( item - > u2 . statements , depth + 1 ) ;
break ;
case PV_CATCH :
/* fields: item->u1.str == name of extension to catch
item - > u2 . statements = = pval list of statements in context body
*/
traverse_pval_item_template ( item - > u2 . statements , depth + 1 ) ;
break ;
case PV_SWITCHES :
/* fields: item->u1.list == pval list of PV_WORD elements, one per entry in the list
*/
traverse_pval_item_template ( item - > u1 . list , depth + 1 ) ;
break ;
case PV_ESWITCHES :
/* fields: item->u1.list == pval list of PV_WORD elements, one per entry in the list
*/
traverse_pval_item_template ( item - > u1 . list , depth + 1 ) ;
break ;
case PV_INCLUDES :
/* fields: item->u1.list == pval list of PV_WORD elements, one per entry in the list
item - > u2 . arglist = = pval list of 4 PV_WORD elements for time values
*/
traverse_pval_item_template ( item - > u1 . list , depth + 1 ) ;
traverse_pval_item_template ( item - > u2 . arglist , depth + 1 ) ;
break ;
case PV_STATEMENTBLOCK :
/* fields: item->u1.list == pval list of statements in block, one per entry in the list
*/
traverse_pval_item_template ( item - > u1 . list , depth + 1 ) ;
break ;
case PV_VARDEC :
/* fields: item->u1.str == variable name
item - > u2 . val = = variable value to assign
*/
break ;
case PV_GOTO :
/* fields: item->u1.list == pval list of PV_WORD target names, up to 3, in order as given by user.
item - > u1 . list - > u1 . str = = where the data on a PV_WORD will always be .
*/
if ( item - > u1 . list - > next )
;
if ( item - > u1 . list - > next & & item - > u1 . list - > next - > next )
;
break ;
case PV_LABEL :
/* fields: item->u1.str == label name
*/
break ;
case PV_FOR :
/* fields: item->u1.for_init == a string containing the initalizer
item - > u2 . for_test = = a string containing the loop test
item - > u3 . for_inc = = a string containing the loop increment
item - > u4 . for_statements = = a pval list of statements in the for ( )
*/
traverse_pval_item_template ( item - > u4 . for_statements , depth + 1 ) ;
break ;
case PV_WHILE :
/* fields: item->u1.str == the while conditional, as supplied by user
item - > u2 . statements = = a pval list of statements in the while ( )
*/
traverse_pval_item_template ( item - > u2 . statements , depth + 1 ) ;
break ;
case PV_BREAK :
/* fields: none
*/
break ;
case PV_RETURN :
/* fields: none
*/
break ;
case PV_CONTINUE :
/* fields: none
*/
break ;
case PV_IFTIME :
/* fields: item->u1.list == there are 4 linked PV_WORDs here.
item - > u2 . statements = = a pval list of statements in the if ( )
item - > u3 . else_statements = = a pval list of statements in the else
( could be zero )
*/
traverse_pval_item_template ( item - > u2 . statements , depth + 1 ) ;
if ( item - > u3 . else_statements ) {
traverse_pval_item_template ( item - > u3 . else_statements , depth + 1 ) ;
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}
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break ;
case PV_RANDOM :
/* fields: item->u1.str == the random number expression, as supplied by user
item - > u2 . statements = = a pval list of statements in the if ( )
item - > u3 . else_statements = = a pval list of statements in the else
( could be zero )
*/
traverse_pval_item_template ( item - > u2 . statements , depth + 1 ) ;
if ( item - > u3 . else_statements ) {
traverse_pval_item_template ( item - > u3 . else_statements , depth + 1 ) ;
}
break ;
case PV_IF :
/* fields: item->u1.str == the if conditional, as supplied by user
item - > u2 . statements = = a pval list of statements in the if ( )
item - > u3 . else_statements = = a pval list of statements in the else
( could be zero )
*/
traverse_pval_item_template ( item - > u2 . statements , depth + 1 ) ;
if ( item - > u3 . else_statements ) {
traverse_pval_item_template ( item - > u3 . else_statements , depth + 1 ) ;
}
break ;
case PV_SWITCH :
/* fields: item->u1.str == the switch expression
item - > u2 . statements = = a pval list of statements in the switch ,
( will be case statements , most likely ! )
*/
traverse_pval_item_template ( item - > u2 . statements , depth + 1 ) ;
break ;
case PV_EXTENSION :
/* fields: item->u1.str == the extension name, label, whatever it's called
item - > u2 . statements = = a pval list of statements in the extension
item - > u3 . hints = = a char * hint argument
item - > u4 . regexten = = an int boolean . non - zero says that regexten was specified
*/
traverse_pval_item_template ( item - > u2 . statements , depth + 1 ) ;
break ;
case PV_IGNOREPAT :
/* fields: item->u1.str == the ignorepat data
*/
break ;
case PV_GLOBALS :
/* fields: item->u1.statements == pval list of statements, usually vardecs
*/
traverse_pval_item_template ( item - > u1 . statements , depth + 1 ) ;
break ;
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}
}
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void traverse_pval_template ( pval * item , int depth ) /* depth comes in handy for a pretty print (indentation),
but you may not need it */
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{
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pval * i ;
for ( i = item ; i ; i = i - > next ) {
traverse_pval_item_template ( i , depth ) ;
}
}
/* SEMANTIC CHECKING FOR AEL: ============================================================================= */
/* (not all that is syntactically legal is good! */
static int extension_matches ( pval * here , char * exten , char * pattern )
{
int err1 ;
regex_t preg ;
/* simple case, they match exactly, the pattern and exten name */
if ( ! strcmp ( pattern , exten ) = = 0 )
return 1 ;
if ( pattern [ 0 ] = = ' _ ' ) {
char reg1 [ 2000 ] ;
char * p , * r = reg1 ;
if ( strlen ( pattern ) * 5 > = 2000 ) /* safety valve */ {
ast_log ( LOG_ERROR , " Error: The pattern %s is way too big. Pattern matching cancelled. \n " ,
pattern ) ;
return 0 ;
}
/* form a regular expression from the pattern, and then match it against exten */
* r + + = ' ^ ' ; /* what if the extension is a pattern ?? */
* r + + = ' _ ' ; /* what if the extension is a pattern ?? */
* r + + = ' ? ' ;
for ( p = pattern + 1 ; * p ; p + + ) {
switch ( * p ) {
case ' X ' :
* r + + = ' [ ' ;
* r + + = ' 0 ' ;
* r + + = ' - ' ;
* r + + = ' 9 ' ;
* r + + = ' X ' ;
* r + + = ' ] ' ;
break ;
case ' Z ' :
* r + + = ' [ ' ;
* r + + = ' 1 ' ;
* r + + = ' - ' ;
* r + + = ' 9 ' ;
* r + + = ' Z ' ;
* r + + = ' ] ' ;
break ;
case ' N ' :
* r + + = ' [ ' ;
* r + + = ' 2 ' ;
* r + + = ' - ' ;
* r + + = ' 9 ' ;
* r + + = ' N ' ;
* r + + = ' ] ' ;
break ;
case ' [ ' :
while ( * p & & * p ! = ' ] ' ) {
* r + + = * p + + ;
}
if ( * p ! = ' ] ' ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: The extension pattern '%s' is missing a closing bracket \n " ,
here - > filename , here - > startline , here - > endline , pattern ) ;
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}
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break ;
case ' . ' :
case ' ! ' :
* r + + = ' . ' ;
* r + + = ' * ' ;
break ;
case ' * ' :
* r + + = ' \\ ' ;
* r + + = ' * ' ;
break ;
default :
* r + + = * p ;
break ;
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}
}
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* r + + = ' $ ' ; /* what if the extension is a pattern ?? */
* r + + = * p + + ; /* put in the closing null */
err1 = regcomp ( & preg , reg1 , REG_NOSUB | REG_EXTENDED ) ;
if ( err1 ) {
char errmess [ 500 ] ;
regerror ( err1 , & preg , errmess , sizeof ( errmess ) ) ;
regfree ( & preg ) ;
ast_log ( LOG_WARNING , " Regcomp of %s failed, error code %d \n " ,
reg1 , err1 ) ;
return 0 ;
}
err1 = regexec ( & preg , exten , 0 , 0 , 0 ) ;
regfree ( & preg ) ;
if ( err1 ) {
/* ast_log(LOG_NOTICE,"*****************************[%d]Extension %s did not match %s(%s)\n",
err1 , exten , pattern , reg1 ) ; */
return 0 ; /* no match */
} else {
/* ast_log(LOG_NOTICE,"*****************************Extension %s matched %s\n",
exten , pattern ) ; */
return 1 ;
}
} else {
if ( strcmp ( exten , pattern ) = = 0 ) {
return 1 ;
} else
return 0 ;
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}
}
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static void check_expr2_input ( pval * expr , char * str )
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{
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int spaces = strspn ( str , " \t \n " ) ;
if ( ! strncmp ( str + spaces , " $[ " , 2 ) ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: The expression '%s' is redundantly wrapped in '$[ ]'. \n " ,
expr - > filename , expr - > startline , expr - > endline , str ) ;
warns + + ;
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}
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}
static void check_timerange ( pval * p )
{
char times [ 200 ] ;
char * e ;
int s1 , s2 ;
int e1 , e2 ;
strncpy ( times , p - > u1 . str , sizeof ( times ) ) ;
/* Star is all times */
if ( ast_strlen_zero ( times ) | | ! strcmp ( times , " * " ) ) {
return ;
}
/* Otherwise expect a range */
e = strchr ( times , ' - ' ) ;
if ( ! e ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: The time range format (%s) requires a '-' surrounded by two 24-hour times of day! \n " ,
p - > filename , p - > startline , p - > endline , times ) ;
warns + + ;
return ;
}
* e = ' \0 ' ;
e + + ;
while ( * e & & ! isdigit ( * e ) )
e + + ;
if ( ! * e ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: The time range format (%s) is missing the end time! \n " ,
p - > filename , p - > startline , p - > endline , p - > u1 . str ) ;
warns + + ;
}
if ( sscanf ( times , " %d:%d " , & s1 , & s2 ) ! = 2 ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: The start time (%s) isn't quite right! \n " ,
p - > filename , p - > startline , p - > endline , times ) ;
warns + + ;
}
if ( sscanf ( e , " %d:%d " , & e1 , & e2 ) ! = 2 ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: The end time (%s) isn't quite right! \n " ,
p - > filename , p - > startline , p - > endline , times ) ;
warns + + ;
}
s1 = s1 * 30 + s2 / 2 ;
if ( ( s1 < 0 ) | | ( s1 > = 24 * 30 ) ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: The start time (%s) is out of range! \n " ,
p - > filename , p - > startline , p - > endline , times ) ;
warns + + ;
}
e1 = e1 * 30 + e2 / 2 ;
if ( ( e1 < 0 ) | | ( e1 > = 24 * 30 ) ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: The end time (%s) is out of range! \n " ,
p - > filename , p - > startline , p - > endline , e ) ;
warns + + ;
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}
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return ;
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}
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static char * days [ ] =
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{
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" sun " ,
" mon " ,
" tue " ,
" wed " ,
" thu " ,
" fri " ,
" sat " ,
} ;
/*! \brief get_dow: Get day of week */
static void check_dow ( pval * DOW )
{
char dow [ 200 ] ;
char * c ;
/* The following line is coincidence, really! */
int s , e ;
strncpy ( dow , DOW - > u1 . str , sizeof ( dow ) ) ;
/* Check for all days */
if ( ast_strlen_zero ( dow ) | | ! strcmp ( dow , " * " ) )
return ;
/* Get start and ending days */
c = strchr ( dow , ' - ' ) ;
if ( c ) {
* c = ' \0 ' ;
c + + ;
} else
c = NULL ;
/* Find the start */
s = 0 ;
while ( ( s < 7 ) & & strcasecmp ( dow , days [ s ] ) ) s + + ;
if ( s > = 7 ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: The day (%s) must be one of 'sun', 'mon', 'tue', 'wed', 'thu', 'fri', or 'sat'! \n " ,
DOW - > filename , DOW - > startline , DOW - > endline , dow ) ;
warns + + ;
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}
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if ( c ) {
e = 0 ;
while ( ( e < 7 ) & & strcasecmp ( c , days [ e ] ) ) e + + ;
if ( e > = 7 ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: The end day (%s) must be one of 'sun', 'mon', 'tue', 'wed', 'thu', 'fri', or 'sat'! \n " ,
DOW - > filename , DOW - > startline , DOW - > endline , c ) ;
warns + + ;
}
} else
e = s ;
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}
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static void check_day ( pval * DAY )
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{
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char day [ 200 ] ;
char * c ;
/* The following line is coincidence, really! */
int s , e ;
strncpy ( day , DAY - > u1 . str , sizeof ( day ) ) ;
/* Check for all days */
if ( ast_strlen_zero ( day ) | | ! strcmp ( day , " * " ) ) {
return ;
}
/* Get start and ending days */
c = strchr ( day , ' - ' ) ;
if ( c ) {
* c = ' \0 ' ;
c + + ;
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}
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/* Find the start */
if ( sscanf ( day , " %d " , & s ) ! = 1 ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: The start day of month (%s) must be a number! \n " ,
DAY - > filename , DAY - > startline , DAY - > endline , day ) ;
warns + + ;
}
else if ( ( s < 1 ) | | ( s > 31 ) ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: The start day of month (%s) must be a number in the range [1-31]! \n " ,
DAY - > filename , DAY - > startline , DAY - > endline , day ) ;
warns + + ;
}
s - - ;
if ( c ) {
if ( sscanf ( c , " %d " , & e ) ! = 1 ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: The end day of month (%s) must be a number! \n " ,
DAY - > filename , DAY - > startline , DAY - > endline , c ) ;
warns + + ;
}
else if ( ( e < 1 ) | | ( e > 31 ) ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: The end day of month (%s) must be a number in the range [1-31]! \n " ,
DAY - > filename , DAY - > startline , DAY - > endline , day ) ;
warns + + ;
}
e - - ;
} else
e = s ;
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}
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static char * months [ ] =
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{
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" jan " ,
" feb " ,
" mar " ,
" apr " ,
" may " ,
" jun " ,
" jul " ,
" aug " ,
" sep " ,
" oct " ,
" nov " ,
" dec " ,
} ;
static void check_month ( pval * MON )
{
char mon [ 200 ] ;
char * c ;
/* The following line is coincidence, really! */
int s , e ;
strncpy ( mon , MON - > u1 . str , sizeof ( mon ) ) ;
/* Check for all days */
if ( ast_strlen_zero ( mon ) | | ! strcmp ( mon , " * " ) )
return ;
/* Get start and ending days */
c = strchr ( mon , ' - ' ) ;
if ( c ) {
* c = ' \0 ' ;
c + + ;
}
/* Find the start */
s = 0 ;
while ( ( s < 12 ) & & strcasecmp ( mon , months [ s ] ) ) s + + ;
if ( s > = 12 ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: The start month (%s) must be a one of: 'jan', 'feb', ..., 'dec'! \n " ,
MON - > filename , MON - > startline , MON - > endline , mon ) ;
warns + + ;
}
if ( c ) {
e = 0 ;
while ( ( e < 12 ) & & strcasecmp ( mon , months [ e ] ) ) e + + ;
if ( e > = 12 ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: The end month (%s) must be a one of: 'jan', 'feb', ..., 'dec'! \n " ,
MON - > filename , MON - > startline , MON - > endline , c ) ;
warns + + ;
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}
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} else
e = s ;
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}
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/* general purpose goto finder */
static void check_goto ( pval * item )
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{
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/* check for the target of the goto-- does it exist? */
if ( ! ( item - > u1 . list ) - > next & & ! ( item - > u1 . list ) - > u1 . str ) {
ast_log ( LOG_ERROR , " Error: file %s, line %d-%d: goto: empty label reference found! \n " ,
item - > filename , item - > startline , item - > endline ) ;
errs + + ;
}
/* just one item-- the label should be in the current extension */
if ( item - > u1 . list & & ! item - > u1 . list - > next & & ! strstr ( ( item - > u1 . list ) - > u1 . str , " ${ " ) ) {
struct pval * x = find_label_in_current_extension ( ( char * ) ( ( item - > u1 . list ) - > u1 . str ) ) ;
/* printf("Calling find_label_in_current_extension with args %s\n",
( char * ) ( ( item - > u1 . list ) - > u1 . str ) ) ; */
if ( ! x ) {
ast_log ( LOG_ERROR , " Error: file %s, line %d-%d: goto: no label %s exists in the current extension! \n " ,
item - > filename , item - > startline , item - > endline , item - > u1 . list - > u1 . str ) ;
errs + + ;
}
else
return ;
}
/* TWO items */
if ( item - > u1 . list - > next & & ! item - > u1 . list - > next - > next ) {
/* two items */
/* printf("Calling find_label_in_current_context with args %s, %s\n",
( char * ) ( ( item - > u1 . list ) - > u1 . str ) , ( char * ) item - > u1 . list - > next - > u1 . str ) ; */
if ( ! strstr ( ( item - > u1 . list ) - > u1 . str , " ${ " )
& & ! strstr ( item - > u1 . list - > next - > u1 . str , " ${ " ) ) /* Don't try to match variables */ {
struct pval * x = find_label_in_current_context ( ( char * ) item - > u1 . list - > u1 . str , ( char * ) item - > u1 . list - > next - > u1 . str ) ;
if ( ! x ) {
ast_log ( LOG_ERROR , " Error: file %s, line %d-%d: goto: no label %s|%s exists in the current context, or any of its inclusions! \n " ,
item - > filename , item - > startline , item - > endline , item - > u1 . list - > u1 . str , item - > u1 . list - > next - > u1 . str ) ;
errs + + ;
}
else
return ;
}
}
/* All 3 items! */
if ( item - > u1 . list - > next & & item - > u1 . list - > next - > next ) {
/* all three */
pval * first = item - > u1 . list ;
pval * second = item - > u1 . list - > next ;
pval * third = item - > u1 . list - > next - > next ;
/* printf("Calling find_label_in_current_context with args %s, %s, %s\n",
( char * ) first - > u1 . str , ( char * ) second - > u1 . str , ( char * ) third - > u1 . str ) ; */
if ( ! strstr ( ( item - > u1 . list ) - > u1 . str , " ${ " )
& & ! strstr ( item - > u1 . list - > next - > u1 . str , " ${ " )
& & ! strstr ( item - > u1 . list - > next - > next - > u1 . str , " ${ " ) ) /* Don't try to match variables */ {
struct pval * x = find_label_in_current_db ( ( char * ) first - > u1 . str , ( char * ) second - > u1 . str , ( char * ) third - > u1 . str ) ;
if ( ! x ) {
struct pval * p3 ;
struct pval * found = 0 ;
struct pval * that_context = find_context ( item - > u1 . list - > u1 . str ) ;
/* the target of the goto could be in an included context!! Fancy that!! */
/* look for includes in the current context */
if ( that_context ) {
for ( p3 = that_context - > u2 . statements ; p3 ; p3 = p3 - > next ) {
if ( p3 - > type = = PV_INCLUDES ) {
struct pval * p4 ;
for ( p4 = p3 - > u1 . list ; p4 ; p4 = p4 - > next ) {
/* for each context pointed to, find it, then find a context/label that matches the
target here ! */
char * incl_context = p4 - > u1 . str ;
/* find a matching context name */
struct pval * that_other_context = find_context ( incl_context ) ;
if ( that_other_context ) {
struct pval * context_save = current_context ;
current_context = that_other_context ;
struct pval * x3 = find_label_in_current_context ( ( char * ) item - > u1 . list - > next - > u1 . str , ( char * ) item - > u1 . list - > next - > next - > u1 . str ) ;
current_context = context_save ;
if ( x3 ) {
found = x3 ;
break ;
}
}
}
}
}
if ( ! found ) {
ast_log ( LOG_ERROR , " Error: file %s, line %d-%d: goto: no label %s|%s exists in the context %s or its inclusions! \n " ,
item - > filename , item - > startline , item - > endline , item - > u1 . list - > next - > u1 . str , item - > u1 . list - > next - > next - > u1 . str , item - > u1 . list - > u1 . str ) ;
errs + + ;
}
} else {
ast_log ( LOG_ERROR , " Error: file %s, line %d-%d: goto: no context %s could be found that matches the goto target! \n " ,
item - > filename , item - > startline , item - > endline , item - > u1 . list - > u1 . str ) ;
errs + + ;
}
}
}
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}
}
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static void find_pval_goto_item ( pval * item , int lev )
{
struct pval * p4 ;
if ( lev > 100 ) {
ast_log ( LOG_ERROR , " find_pval_goto in infinite loop! \n \n " ) ;
return ;
}
switch ( item - > type ) {
case PV_MACRO :
/* fields: item->u1.str == name of macro
item - > u2 . arglist = = pval list of PV_WORD arguments of macro , as given by user
item - > u2 . arglist - > u1 . str = = argument
item - > u2 . arglist - > next = = next arg
item - > u3 . macro_statements = = pval list of statements in macro body .
*/
/* printf("Descending into matching macro %s\n", match_context); */
find_pval_gotos ( item - > u2 . statements , lev + 1 ) ; /* if we're just searching for a context, don't bother descending into them */
break ;
case PV_CONTEXT :
/* fields: item->u1.str == name of context
item - > u2 . statements = = pval list of statements in context body
item - > u3 . abstract = = int 1 if an abstract keyword were present
*/
break ;
case PV_CASE :
/* fields: item->u1.str == value of case
item - > u2 . statements = = pval list of statements under the case
*/
find_pval_gotos ( item - > u2 . statements , lev + 1 ) ;
break ;
case PV_PATTERN :
/* fields: item->u1.str == value of case
item - > u2 . statements = = pval list of statements under the case
*/
find_pval_gotos ( item - > u2 . statements , lev + 1 ) ;
break ;
case PV_DEFAULT :
/* fields:
item - > u2 . statements = = pval list of statements under the case
*/
find_pval_gotos ( item - > u2 . statements , lev + 1 ) ;
break ;
case PV_CATCH :
/* fields: item->u1.str == name of extension to catch
item - > u2 . statements = = pval list of statements in context body
*/
find_pval_gotos ( item - > u2 . statements , lev + 1 ) ;
break ;
case PV_STATEMENTBLOCK :
/* fields: item->u1.list == pval list of statements in block, one per entry in the list
*/
find_pval_gotos ( item - > u1 . list , lev + 1 ) ;
break ;
case PV_GOTO :
/* fields: item->u1.list == pval list of PV_WORD target names, up to 3, in order as given by user.
item - > u1 . list - > u1 . str = = where the data on a PV_WORD will always be .
*/
check_goto ( item ) ; /* THE WHOLE FUNCTION OF THIS ENTIRE ROUTINE!!!! */
break ;
case PV_INCLUDES :
/* fields: item->u1.list == pval list of PV_WORD elements, one per entry in the list
*/
for ( p4 = item - > u1 . list ; p4 ; p4 = p4 - > next ) {
/* for each context pointed to, find it, then find a context/label that matches the
target here ! */
char * incl_context = p4 - > u1 . str ;
/* find a matching context name */
struct pval * that_context = find_context ( incl_context ) ;
if ( that_context ) {
find_pval_gotos ( that_context , lev + 1 ) ; /* keep working up the includes */
}
}
break ;
case PV_FOR :
/* fields: item->u1.for_init == a string containing the initalizer
item - > u2 . for_test = = a string containing the loop test
item - > u3 . for_inc = = a string containing the loop increment
item - > u4 . for_statements = = a pval list of statements in the for ( )
*/
find_pval_gotos ( item - > u4 . for_statements , lev + 1 ) ;
break ;
case PV_WHILE :
/* fields: item->u1.str == the while conditional, as supplied by user
item - > u2 . statements = = a pval list of statements in the while ( )
*/
find_pval_gotos ( item - > u2 . statements , lev + 1 ) ;
break ;
case PV_RANDOM :
/* fields: item->u1.str == the random number expression, as supplied by user
item - > u2 . statements = = a pval list of statements in the if ( )
item - > u3 . else_statements = = a pval list of statements in the else
( could be zero )
fall thru to PV_IF */
case PV_IFTIME :
/* fields: item->u1.list == the time values, 4 of them, as PV_WORD structs in a list
item - > u2 . statements = = a pval list of statements in the if ( )
item - > u3 . else_statements = = a pval list of statements in the else
( could be zero )
fall thru to PV_IF */
case PV_IF :
/* fields: item->u1.str == the if conditional, as supplied by user
item - > u2 . statements = = a pval list of statements in the if ( )
item - > u3 . else_statements = = a pval list of statements in the else
( could be zero )
*/
find_pval_gotos ( item - > u2 . statements , lev + 1 ) ;
if ( item - > u3 . else_statements ) {
find_pval_gotos ( item - > u3 . else_statements , lev + 1 ) ;
}
break ;
case PV_SWITCH :
/* fields: item->u1.str == the switch expression
item - > u2 . statements = = a pval list of statements in the switch ,
( will be case statements , most likely ! )
*/
find_pval_gotos ( item - > u3 . else_statements , lev + 1 ) ;
break ;
case PV_EXTENSION :
/* fields: item->u1.str == the extension name, label, whatever it's called
item - > u2 . statements = = a pval list of statements in the extension
item - > u3 . hints = = a char * hint argument
item - > u4 . regexten = = an int boolean . non - zero says that regexten was specified
*/
find_pval_gotos ( item - > u2 . statements , lev + 1 ) ;
break ;
default :
break ;
}
}
static void find_pval_gotos ( pval * item , int lev )
{
pval * i ;
for ( i = item ; i ; i = i - > next ) {
find_pval_goto_item ( i , lev ) ;
}
}
/* general purpose label finder */
static struct pval * match_pval_item ( pval * item )
{
pval * x ;
switch ( item - > type ) {
case PV_MACRO :
/* fields: item->u1.str == name of macro
item - > u2 . arglist = = pval list of PV_WORD arguments of macro , as given by user
item - > u2 . arglist - > u1 . str = = argument
item - > u2 . arglist - > next = = next arg
item - > u3 . macro_statements = = pval list of statements in macro body .
*/
if ( ! strcmp ( match_context , " * " ) | | ! strcmp ( item - > u1 . str , match_context ) ) {
if ( return_on_context_match & & ! strcmp ( item - > u1 . str , match_context ) ) {
/* printf("Returning on matching macro %s\n", match_context); */
return item ;
}
if ( ! return_on_context_match ) {
/* printf("Descending into matching macro %s\n", match_context); */
if ( ( x = match_pval ( item - > u2 . statements ) ) ) /* if we're just searching for a context, don't bother descending into them */ {
return x ;
}
}
} else {
/* printf("Skipping context/macro %s\n", item->u1.str); */
}
break ;
case PV_CONTEXT :
/* fields: item->u1.str == name of context
item - > u2 . statements = = pval list of statements in context body
item - > u3 . abstract = = int 1 if an abstract keyword were present
*/
if ( ! strcmp ( match_context , " * " ) | | ! strcmp ( item - > u1 . str , match_context ) ) {
if ( return_on_context_match & & ! strcmp ( item - > u1 . str , match_context ) ) {
/* printf("Returning on matching context %s\n", match_context); */
return item ;
}
if ( ! return_on_context_match ) {
/* printf("Descending into matching context %s\n", match_context); */
if ( ( x = match_pval ( item - > u2 . statements ) ) ) /* if we're just searching for a context, don't bother descending into them */ {
return x ;
}
}
} else {
/* printf("Skipping context/macro %s\n", item->u1.str); */
}
break ;
case PV_CASE :
/* fields: item->u1.str == value of case
item - > u2 . statements = = pval list of statements under the case
*/
if ( ( x = match_pval ( item - > u2 . statements ) ) ) {
return x ;
}
break ;
case PV_PATTERN :
/* fields: item->u1.str == value of case
item - > u2 . statements = = pval list of statements under the case
*/
if ( ( x = match_pval ( item - > u2 . statements ) ) ) {
return x ;
}
break ;
case PV_DEFAULT :
/* fields:
item - > u2 . statements = = pval list of statements under the case
*/
if ( ( x = match_pval ( item - > u2 . statements ) ) ) {
return x ;
}
break ;
case PV_CATCH :
/* fields: item->u1.str == name of extension to catch
item - > u2 . statements = = pval list of statements in context body
*/
if ( ( x = match_pval ( item - > u2 . statements ) ) ) {
return x ;
}
break ;
case PV_STATEMENTBLOCK :
/* fields: item->u1.list == pval list of statements in block, one per entry in the list
*/
if ( ( x = match_pval ( item - > u1 . list ) ) ) {
return x ;
}
break ;
case PV_LABEL :
/* fields: item->u1.str == label name
*/
/* printf("PV_LABEL %s (cont=%s, exten=%s\n",
item - > u1 . str , current_context - > u1 . str , current_extension - > u1 . str ) ; */
if ( count_labels ) {
if ( ! strcmp ( match_label , item - > u1 . str ) ) {
label_count + + ;
last_matched_label = item ;
}
} else {
if ( ! strcmp ( match_label , item - > u1 . str ) ) {
return item ;
}
}
break ;
case PV_FOR :
/* fields: item->u1.for_init == a string containing the initalizer
item - > u2 . for_test = = a string containing the loop test
item - > u3 . for_inc = = a string containing the loop increment
item - > u4 . for_statements = = a pval list of statements in the for ( )
*/
if ( ( x = match_pval ( item - > u4 . for_statements ) ) ) {
return x ;
}
break ;
case PV_WHILE :
/* fields: item->u1.str == the while conditional, as supplied by user
item - > u2 . statements = = a pval list of statements in the while ( )
*/
if ( ( x = match_pval ( item - > u2 . statements ) ) ) {
return x ;
}
break ;
case PV_RANDOM :
/* fields: item->u1.str == the random number expression, as supplied by user
item - > u2 . statements = = a pval list of statements in the if ( )
item - > u3 . else_statements = = a pval list of statements in the else
( could be zero )
fall thru to PV_IF */
case PV_IFTIME :
/* fields: item->u1.list == the time values, 4 of them, as PV_WORD structs in a list
item - > u2 . statements = = a pval list of statements in the if ( )
item - > u3 . else_statements = = a pval list of statements in the else
( could be zero )
fall thru to PV_IF */
case PV_IF :
/* fields: item->u1.str == the if conditional, as supplied by user
item - > u2 . statements = = a pval list of statements in the if ( )
item - > u3 . else_statements = = a pval list of statements in the else
( could be zero )
*/
if ( ( x = match_pval ( item - > u2 . statements ) ) ) {
return x ;
}
if ( item - > u3 . else_statements ) {
if ( ( x = match_pval ( item - > u3 . else_statements ) ) ) {
return x ;
}
}
break ;
case PV_SWITCH :
/* fields: item->u1.str == the switch expression
item - > u2 . statements = = a pval list of statements in the switch ,
( will be case statements , most likely ! )
*/
if ( ( x = match_pval ( item - > u3 . else_statements ) ) ) {
return x ;
}
break ;
case PV_EXTENSION :
/* fields: item->u1.str == the extension name, label, whatever it's called
item - > u2 . statements = = a pval list of statements in the extension
item - > u3 . hints = = a char * hint argument
item - > u4 . regexten = = an int boolean . non - zero says that regexten was specified
*/
if ( ! strcmp ( match_exten , " * " ) | | extension_matches ( item , match_exten , item - > u1 . str ) ) {
/* printf("Descending into matching exten %s\n", match_exten); */
if ( strcmp ( match_label , " 1 " ) = = 0 ) {
if ( item - > u2 . statements ) {
struct pval * p5 = item - > u2 . statements ;
while ( p5 & & p5 - > type = = PV_LABEL ) /* find the first non-label statement in this context. If it exists, there's a "1" */
p5 = p5 - > next ;
if ( p5 )
return p5 ;
else
return 0 ;
}
else
return 0 ;
}
if ( ( x = match_pval ( item - > u2 . statements ) ) ) {
return x ;
}
} else {
/* printf("Skipping exten %s\n", item->u1.str); */
}
break ;
default :
break ;
}
return 0 ;
}
struct pval * match_pval ( pval * item )
{
pval * i ;
for ( i = item ; i ; i = i - > next ) {
pval * x ;
if ( ( x = match_pval_item ( i ) ) )
return x ; /* cut the search short */
}
return 0 ;
}
int count_labels_in_current_context ( char * label )
{
label_count = 0 ;
count_labels = 1 ;
return_on_context_match = 0 ;
match_pval ( current_context - > u2 . statements ) ;
return label_count ;
}
struct pval * find_label_in_current_context ( char * exten , char * label )
{
/* printf(" --- Got args %s, %s\n", exten, label); */
struct pval * ret ;
struct pval * p3 ;
count_labels = 0 ;
return_on_context_match = 0 ;
match_context = " * " ;
match_exten = exten ;
match_label = label ;
ret = match_pval ( current_context - > u2 . statements ) ;
if ( ret )
return ret ;
/* the target of the goto could be in an included context!! Fancy that!! */
/* look for includes in the current context */
for ( p3 = current_context - > u2 . statements ; p3 ; p3 = p3 - > next ) {
if ( p3 - > type = = PV_INCLUDES ) {
struct pval * p4 ;
for ( p4 = p3 - > u1 . list ; p4 ; p4 = p4 - > next ) {
/* for each context pointed to, find it, then find a context/label that matches the
target here ! */
char * incl_context = p4 - > u1 . str ;
/* find a matching context name */
struct pval * that_context = find_context ( incl_context ) ;
if ( that_context ) {
struct pval * context_save = current_context ;
current_context = that_context ;
struct pval * x3 = find_label_in_current_context ( exten , label ) ;
current_context = context_save ;
if ( x3 ) {
return x3 ;
}
}
}
}
}
return 0 ;
}
struct pval * find_label_in_current_extension ( char * label )
{
/* printf(" --- Got args %s\n", label); */
count_labels = 0 ;
return_on_context_match = 0 ;
match_context = " * " ;
match_exten = " * " ;
match_label = label ;
if ( ! current_extension ) /* macros have no current extension, the whole thing is one extension... */
return match_pval ( current_context - > u3 . macro_statements ) ;
return match_pval ( current_extension - > u2 . statements ) ;
}
struct pval * find_label_in_current_db ( char * context , char * exten , char * label )
{
/* printf(" --- Got args %s, %s, %s\n", context, exten, label); */
count_labels = 0 ;
return_on_context_match = 0 ;
match_context = context ;
match_exten = exten ;
match_label = label ;
return match_pval ( current_db ) ;
}
struct pval * find_macro ( char * name )
{
return_on_context_match = 1 ;
count_labels = 0 ;
match_context = name ;
match_exten = " * " ; /* don't really need to set these, shouldn't be reached */
match_label = " * " ;
return match_pval ( current_db ) ;
}
struct pval * find_context ( char * name )
{
return_on_context_match = 1 ;
count_labels = 0 ;
match_context = name ;
match_exten = " * " ; /* don't really need to set these, shouldn't be reached */
match_label = " * " ;
return match_pval ( current_db ) ;
}
int is_float ( char * arg )
{
char * s ;
for ( s = arg ; * s ; s + + ) {
if ( * s ! = ' . ' & & ( * s < ' 0 ' | | * s > ' 9 ' ) )
return 0 ;
}
return 1 ;
}
int is_int ( char * arg )
{
char * s ;
for ( s = arg ; * s ; s + + ) {
if ( * s < ' 0 ' | | * s > ' 9 ' )
return 0 ;
}
return 1 ;
}
int is_empty ( char * arg )
{
if ( ! arg )
return 1 ;
if ( * arg = = 0 )
return 1 ;
while ( * arg ) {
if ( * arg ! = ' ' & & * arg ! = ' \t ' )
return 0 ;
arg + + ;
}
return 1 ;
}
# ifdef AAL_ARGCHECK
int option_matches_j ( struct argdesc * should , pval * is , struct argapp * app )
{
struct argchoice * ac ;
char opcop [ 400 ] , * q , * p ;
switch ( should - > dtype ) {
case ARGD_OPTIONSET :
if ( strstr ( is - > u1 . str , " ${ " ) )
return 0 ; /* no checking anything if there's a var reference in there! */
strncpy ( opcop , is - > u1 . str , sizeof ( opcop ) ) ;
for ( q = opcop ; * q ; q + + ) { /* erase the innards of X(innard) type arguments, so we don't get confused later */
if ( * q = = ' ( ' ) {
p = q + 1 ;
while ( * p & & * p ! = ' ) ' )
* p + + = ' + ' ;
q = p + 1 ;
}
}
for ( ac = app - > opts ; ac ; ac = ac - > next ) {
if ( strlen ( ac - > name ) > 1 & & strchr ( ac - > name , ' ( ' ) = = 0 & & strcmp ( ac - > name , is - > u1 . str ) = = 0 ) /* multichar option, no parens, and a match? */
return 0 ;
}
for ( ac = app - > opts ; ac ; ac = ac - > next ) {
if ( strlen ( ac - > name ) = = 1 | | strchr ( ac - > name , ' ( ' ) ) {
char * p = strchr ( opcop , ac - > name [ 0 ] ) ; /* wipe out all matched options in the user-supplied string */
if ( p & & * p = = ' j ' ) {
ast_log ( LOG_ERROR , " Error: file %s, line %d-%d: The j option in the %s application call is not appropriate for AEL! \n " ,
is - > filename , is - > startline , is - > endline , app - > name ) ;
errs + + ;
}
if ( p ) {
* p = ' + ' ;
if ( ac - > name [ 1 ] = = ' ( ' ) {
if ( * ( p + 1 ) ! = ' ( ' ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: The %c option in the %s application call should have an (argument), but doesn't! \n " ,
is - > filename , is - > startline , is - > endline , ac - > name [ 0 ] , app - > name ) ;
warns + + ;
}
}
}
}
}
for ( q = opcop ; * q ; q + + ) {
if ( * q ! = ' + ' & & * q ! = ' ( ' & & * q ! = ' ) ' ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: The %c option in the %s application call is not available as an option! \n " ,
is - > filename , is - > startline , is - > endline , * q , app - > name ) ;
warns + + ;
}
}
return 1 ;
break ;
default :
return 0 ;
}
}
int option_matches ( struct argdesc * should , pval * is , struct argapp * app )
{
struct argchoice * ac ;
char opcop [ 400 ] ;
switch ( should - > dtype ) {
case ARGD_STRING :
if ( is_empty ( is - > u1 . str ) & & should - > type = = ARGD_REQUIRED )
return 0 ;
if ( is - > u1 . str & & strlen ( is - > u1 . str ) > 0 ) /* most will match */
return 1 ;
break ;
case ARGD_INT :
if ( is_int ( is - > u1 . str ) )
return 1 ;
else
return 0 ;
break ;
case ARGD_FLOAT :
if ( is_float ( is - > u1 . str ) )
return 1 ;
else
return 0 ;
break ;
case ARGD_ENUM :
if ( ! is - > u1 . str | | strlen ( is - > u1 . str ) = = 0 )
return 1 ; /* a null arg in the call will match an enum, I guess! */
for ( ac = should - > choices ; ac ; ac = ac - > next ) {
if ( strcmp ( ac - > name , is - > u1 . str ) = = 0 )
return 1 ;
}
return 0 ;
break ;
case ARGD_OPTIONSET :
strncpy ( opcop , is - > u1 . str , sizeof ( opcop ) ) ;
for ( ac = app - > opts ; ac ; ac = ac - > next ) {
if ( strlen ( ac - > name ) > 1 & & strchr ( ac - > name , ' ( ' ) = = 0 & & strcmp ( ac - > name , is - > u1 . str ) = = 0 ) /* multichar option, no parens, and a match? */
return 1 ;
}
for ( ac = app - > opts ; ac ; ac = ac - > next ) {
if ( strlen ( ac - > name ) = = 1 | | strchr ( ac - > name , ' ( ' ) ) {
char * p = strchr ( opcop , ac - > name [ 0 ] ) ; /* wipe out all matched options in the user-supplied string */
if ( p ) {
* p = ' + ' ;
if ( ac - > name [ 1 ] = = ' ( ' ) {
if ( * ( p + 1 ) = = ' ( ' ) {
char * q = p + 1 ;
while ( * q & & * q ! = ' ) ' ) {
* q + + = ' + ' ;
}
* q = ' + ' ;
}
}
}
}
}
return 1 ;
break ;
case ARGD_VARARG :
return 1 ; /* matches anything */
break ;
}
return 1 ; /* unless some for-sure match or non-match returns, then it must be close enough ... */
}
# endif
int check_app_args ( pval * appcall , pval * arglist , struct argapp * app )
{
# ifdef AAL_ARGCHECK
struct argdesc * ad = app - > args ;
pval * pa ;
int z ;
for ( pa = arglist ; pa ; pa = pa - > next ) {
if ( ! ad ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: Extra argument %s not in application call to %s ! \n " ,
arglist - > filename , arglist - > startline , arglist - > endline , pa - > u1 . str , app - > name ) ;
warns + + ;
return 1 ;
} else {
/* find the first entry in the ad list that will match */
do {
if ( ad - > dtype = = ARGD_VARARG ) /* once we hit the VARARG, all bets are off. Discontinue the comparisons */
break ;
z = option_matches ( ad , pa , app ) ;
if ( ! z ) {
if ( ! arglist )
arglist = appcall ;
if ( ad - > type = = ARGD_REQUIRED ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: Required argument %s not in application call to %s ! \n " ,
arglist - > filename , arglist - > startline , arglist - > endline , ad - > dtype = = ARGD_OPTIONSET ? " options " : ad - > name , app - > name ) ;
warns + + ;
return 1 ;
}
} else if ( z & & ad - > dtype = = ARGD_OPTIONSET ) {
option_matches_j ( ad , pa , app ) ;
}
ad = ad - > next ;
} while ( ad & & ! z ) ;
}
}
/* any app nodes left, that are not optional? */
for ( ; ad ; ad = ad - > next ) {
if ( ad - > type = = ARGD_REQUIRED & & ad - > dtype ! = ARGD_VARARG ) {
if ( ! arglist )
arglist = appcall ;
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: Required argument %s not in application call to %s ! \n " ,
arglist - > filename , arglist - > startline , arglist - > endline , ad - > dtype = = ARGD_OPTIONSET ? " options " : ad - > name , app - > name ) ;
warns + + ;
return 1 ;
}
}
return 0 ;
# else
return 0 ;
# endif
}
void check_switch_expr ( pval * item , struct argapp * apps )
{
# ifdef AAL_ARGCHECK
/* get and clean the variable name */
char buff1 [ 1024 ] , * p ;
struct argapp * a , * a2 ;
struct appsetvar * v , * v2 ;
struct argchoice * c ;
pval * t ;
p = item - > u1 . str ;
while ( p & & * p & & ( * p = = ' ' | | * p = = ' \t ' | | * p = = ' $ ' | | * p = = ' { ' ) )
p + + ;
strncpy ( buff1 , p , sizeof ( buff1 ) ) ;
while ( strlen ( buff1 ) > 0 & & ( buff1 [ strlen ( buff1 ) - 1 ] = = ' } ' | | buff1 [ strlen ( buff1 ) - 1 ] = = ' ' | | buff1 [ strlen ( buff1 ) - 1 ] = = ' \t ' ) )
buff1 [ strlen ( buff1 ) - 1 ] = 0 ;
/* buff1 now contains the variable name */
v = 0 ;
for ( a = apps ; a ; a = a - > next ) {
for ( v = a - > setvars ; v ; v = v - > next ) {
if ( strcmp ( v - > name , buff1 ) = = 0 ) {
break ;
}
}
if ( v )
break ;
}
if ( v & & v - > vals ) {
/* we have a match, to a variable that has a set of determined values */
int def = 0 ;
int pat = 0 ;
int f1 = 0 ;
/* first of all, does this switch have a default case ? */
for ( t = item - > u2 . statements ; t ; t = t - > next ) {
if ( t - > type = = PV_DEFAULT ) {
def = 1 ;
break ;
}
if ( t - > type = = PV_PATTERN ) {
pat + + ;
}
}
if ( def | | pat ) /* nothing to check. All cases accounted for! */
return ;
for ( c = v - > vals ; c ; c = c - > next ) {
f1 = 0 ;
for ( t = item - > u2 . statements ; t ; t = t - > next ) {
if ( t - > type = = PV_CASE | | t - > type = = PV_PATTERN ) {
if ( ! strcmp ( t - > u1 . str , c - > name ) ) {
f1 = 1 ;
break ;
}
}
}
if ( ! f1 ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: switch with expression(%s) does not handle the case of %s ! \n " ,
item - > filename , item - > startline , item - > endline , item - > u1 . str , c - > name ) ;
warns + + ;
}
}
/* next, is there an app call in the current exten, that would set this var? */
f1 = 0 ;
t = current_extension - > u2 . statements ;
if ( t & & t - > type = = PV_STATEMENTBLOCK )
t = t - > u1 . statements ;
for ( ; t & & t ! = item ; t = t - > next ) {
if ( t - > type = = PV_APPLICATION_CALL ) {
/* find the application that matches the u1.str */
for ( a2 = apps ; a2 ; a2 = a2 - > next ) {
if ( strcasecmp ( a2 - > name , t - > u1 . str ) = = 0 ) {
for ( v2 = a2 - > setvars ; v2 ; v2 = v2 - > next ) {
if ( strcmp ( v2 - > name , buff1 ) = = 0 ) {
/* found an app that sets the var */
f1 = 1 ;
break ;
}
}
}
if ( f1 )
break ;
}
}
if ( f1 )
break ;
}
/* see if it sets the var */
if ( ! f1 ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: Couldn't find an application call in this extension that sets the expression (%s) value! \n " ,
item - > filename , item - > startline , item - > endline , item - > u1 . str ) ;
warns + + ;
}
}
# endif
}
static void check_context_names ( void )
{
pval * i , * j ;
for ( i = current_db ; i ; i = i - > next ) {
if ( i - > type = = PV_CONTEXT | | i - > type = = PV_MACRO ) {
for ( j = i - > next ; j ; j = j - > next ) {
if ( j - > type = = PV_CONTEXT | | j - > type = = PV_MACRO ) {
if ( ! strcmp ( i - > u1 . str , j - > u1 . str ) )
{
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: The context name (%s) is also declared in file %s, line %d-%d! \n " ,
i - > filename , i - > startline , i - > endline , i - > u1 . str , j - > filename , j - > startline , j - > endline ) ;
warns + + ;
}
}
}
}
}
}
static void check_abstract_reference ( pval * abstract_context )
{
pval * i , * j ;
/* find some context includes that reference this context */
/* otherwise, print out a warning */
for ( i = current_db ; i ; i = i - > next ) {
if ( i - > type = = PV_CONTEXT ) {
for ( j = i - > u2 . statements ; j ; j = j - > next ) {
if ( j - > type = = PV_INCLUDES ) {
struct pval * p4 ;
for ( p4 = j - > u1 . list ; p4 ; p4 = p4 - > next ) {
/* for each context pointed to, find it, then find a context/label that matches the
target here ! */
if ( ! strcmp ( p4 - > u1 . str , abstract_context - > u1 . str ) )
return ; /* found a match! */
}
}
}
}
}
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: Couldn't find a reference to this abstract context (%s) in any other context! \n " ,
abstract_context - > filename , abstract_context - > startline , abstract_context - > endline , abstract_context - > u1 . str ) ;
warns + + ;
}
void check_pval_item ( pval * item , struct argapp * apps )
{
pval * lp ;
# ifdef AAL_ARGCHECK
struct argapp * app , * found ;
# endif
struct pval * macro_def ;
struct pval * app_def ;
char errmsg [ 4096 ] ;
char * strp ;
switch ( item - > type ) {
case PV_WORD :
/* fields: item->u1.str == string associated with this (word).
item - > u2 . arglist = = pval list of 4 PV_WORD elements for time values ( only in PV_INCLUDES ) */
break ;
case PV_MACRO :
/* fields: item->u1.str == name of macro
item - > u2 . arglist = = pval list of PV_WORD arguments of macro , as given by user
item - > u2 . arglist - > u1 . str = = argument
item - > u2 . arglist - > next = = next arg
item - > u3 . macro_statements = = pval list of statements in macro body .
*/
in_abstract_context = 0 ;
current_context = item ;
current_extension = 0 ;
for ( lp = item - > u2 . arglist ; lp ; lp = lp - > next ) {
}
check_pval ( item - > u3 . macro_statements , apps ) ;
break ;
case PV_CONTEXT :
/* fields: item->u1.str == name of context
item - > u2 . statements = = pval list of statements in context body
item - > u3 . abstract = = int 1 if an abstract keyword were present
*/
current_context = item ;
current_extension = 0 ;
if ( item - > u3 . abstract ) {
in_abstract_context = 1 ;
check_abstract_reference ( item ) ;
} else
in_abstract_context = 0 ;
check_pval ( item - > u2 . statements , apps ) ;
break ;
case PV_MACRO_CALL :
/* fields: item->u1.str == name of macro to call
item - > u2 . arglist = = pval list of PV_WORD arguments of macro call , as given by user
item - > u2 . arglist - > u1 . str = = argument
item - > u2 . arglist - > next = = next arg
*/
macro_def = find_macro ( item - > u1 . str ) ;
if ( ! macro_def ) {
ast_log ( LOG_ERROR , " Error: file %s, line %d-%d: macro call to non-existent %s ! \n " ,
item - > filename , item - > startline , item - > endline , item - > u1 . str ) ;
errs + + ;
} else if ( macro_def - > type ! = PV_MACRO ) {
ast_log ( LOG_ERROR , " Error: file %s, line %d-%d: macro call to %s references a context, not a macro! \n " ,
item - > filename , item - > startline , item - > endline , item - > u1 . str ) ;
errs + + ;
} else {
/* macro_def is a MACRO, so do the args match in number? */
int hereargs = 0 ;
int thereargs = 0 ;
for ( lp = item - > u2 . arglist ; lp ; lp = lp - > next ) {
hereargs + + ;
}
for ( lp = macro_def - > u2 . arglist ; lp ; lp = lp - > next ) {
thereargs + + ;
}
if ( hereargs ! = thereargs ) {
ast_log ( LOG_ERROR , " Error: file %s, line %d-%d: The macro call to %s has %d arguments, but the macro definition has %d arguments \n " ,
item - > filename , item - > startline , item - > endline , item - > u1 . str , hereargs , thereargs ) ;
errs + + ;
}
}
break ;
case PV_APPLICATION_CALL :
/* fields: item->u1.str == name of application to call
item - > u2 . arglist = = pval list of PV_WORD arguments of macro call , as given by user
item - > u2 . arglist - > u1 . str = = argument
item - > u2 . arglist - > next = = next arg
*/
/* Need to check to see if the application is available! */
app_def = find_context ( item - > u1 . str ) ;
if ( app_def & & app_def - > type = = PV_MACRO ) {
ast_log ( LOG_ERROR , " Error: file %s, line %d-%d: application call to %s references an existing macro, but had no & preceding it! \n " ,
item - > filename , item - > startline , item - > endline , item - > u1 . str ) ;
errs + + ;
}
if ( strcasecmp ( item - > u1 . str , " GotoIf " ) = = 0
| | strcasecmp ( item - > u1 . str , " GotoIfTime " ) = = 0
| | strcasecmp ( item - > u1 . str , " while " ) = = 0
| | strcasecmp ( item - > u1 . str , " endwhile " ) = = 0
| | strcasecmp ( item - > u1 . str , " random " ) = = 0
| | strcasecmp ( item - > u1 . str , " execIf " ) = = 0 ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: application call to %s needs to be re-written using AEL if, while, goto, etc. keywords instead! \n " ,
item - > filename , item - > startline , item - > endline , item - > u1 . str ) ;
warns + + ;
}
# ifdef AAL_ARGCHECK
found = 0 ;
for ( app = apps ; app ; app = app - > next ) {
if ( strcasecmp ( app - > name , item - > u1 . str ) = = 0 ) {
found = app ;
break ;
}
}
if ( ! found ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: application call to %s not listed in applist database! \n " ,
item - > filename , item - > startline , item - > endline , item - > u1 . str ) ;
warns + + ;
} else
check_app_args ( item , item - > u2 . arglist , app ) ;
# endif
break ;
case PV_CASE :
/* fields: item->u1.str == value of case
item - > u2 . statements = = pval list of statements under the case
*/
/* Make sure sequence of statements under case is terminated with goto, return, or break */
/* find the last statement */
check_pval ( item - > u2 . statements , apps ) ;
break ;
case PV_PATTERN :
/* fields: item->u1.str == value of case
item - > u2 . statements = = pval list of statements under the case
*/
/* Make sure sequence of statements under case is terminated with goto, return, or break */
/* find the last statement */
check_pval ( item - > u2 . statements , apps ) ;
break ;
case PV_DEFAULT :
/* fields:
item - > u2 . statements = = pval list of statements under the case
*/
check_pval ( item - > u2 . statements , apps ) ;
break ;
case PV_CATCH :
/* fields: item->u1.str == name of extension to catch
item - > u2 . statements = = pval list of statements in context body
*/
check_pval ( item - > u2 . statements , apps ) ;
break ;
case PV_SWITCHES :
/* fields: item->u1.list == pval list of PV_WORD elements, one per entry in the list
*/
check_pval ( item - > u1 . list , apps ) ;
break ;
case PV_ESWITCHES :
/* fields: item->u1.list == pval list of PV_WORD elements, one per entry in the list
*/
check_pval ( item - > u1 . list , apps ) ;
break ;
case PV_INCLUDES :
/* fields: item->u1.list == pval list of PV_WORD elements, one per entry in the list
*/
check_pval ( item - > u1 . list , apps ) ;
for ( lp = item - > u1 . list ; lp ; lp = lp - > next ) {
char * incl_context = lp - > u1 . str ;
struct pval * that_context = find_context ( incl_context ) ;
if ( lp - > u2 . arglist ) {
check_timerange ( lp - > u2 . arglist ) ;
check_dow ( lp - > u2 . arglist - > next ) ;
check_day ( lp - > u2 . arglist - > next - > next ) ;
check_month ( lp - > u2 . arglist - > next - > next - > next ) ;
}
if ( that_context ) {
find_pval_gotos ( that_context - > u2 . statements , 0 ) ;
}
}
break ;
case PV_STATEMENTBLOCK :
/* fields: item->u1.list == pval list of statements in block, one per entry in the list
*/
check_pval ( item - > u1 . list , apps ) ;
break ;
case PV_VARDEC :
/* fields: item->u1.str == variable name
item - > u2 . val = = variable value to assign
*/
/* the RHS of a vardec is encapsulated in a $[] expr. Is it legal? */
snprintf ( errmsg , sizeof ( errmsg ) , " file %s, line %d, columns %d-%d, variable declaration expr '%s': " , config , item - > startline , item - > startcol , item - > endcol , item - > u2 . val ) ;
ast_expr_register_extra_error_info ( errmsg ) ;
ast_expr ( item - > u2 . val , expr_output , sizeof ( expr_output ) ) ;
ast_expr_clear_extra_error_info ( ) ;
if ( strpbrk ( item - > u2 . val , " ~!-+<>=*/&^ " ) & & ! strstr ( item - > u2 . val , " ${ " ) ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: expression %s has operators, but no variables. Interesting... \n " ,
item - > filename , item - > startline , item - > endline , item - > u2 . val ) ;
warns + + ;
}
check_expr2_input ( item , item - > u2 . val ) ;
break ;
case PV_GOTO :
/* fields: item->u1.list == pval list of PV_WORD target names, up to 3, in order as given by user.
item - > u1 . list - > u1 . str = = where the data on a PV_WORD will always be .
*/
/* don't check goto's in abstract contexts */
if ( in_abstract_context )
break ;
check_goto ( item ) ;
break ;
case PV_LABEL :
/* fields: item->u1.str == label name
*/
if ( strspn ( item - > u1 . str , " 0123456789 " ) = = strlen ( item - > u1 . str ) ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: label '%s' is numeric, this is bad practice! \n " ,
item - > filename , item - > startline , item - > endline , item - > u1 . str ) ;
warns + + ;
}
break ;
case PV_FOR :
/* fields: item->u1.for_init == a string containing the initalizer
item - > u2 . for_test = = a string containing the loop test
item - > u3 . for_inc = = a string containing the loop increment
item - > u4 . for_statements = = a pval list of statements in the for ( )
*/
snprintf ( errmsg , sizeof ( errmsg ) , " file %s, line %d, columns %d-%d, for test expr '%s': " , config , item - > startline , item - > startcol , item - > endcol , item - > u2 . for_test ) ;
ast_expr_register_extra_error_info ( errmsg ) ;
strp = strchr ( item - > u1 . for_init , ' = ' ) ;
if ( strp ) {
ast_expr ( strp + 1 , expr_output , sizeof ( expr_output ) ) ;
}
ast_expr ( item - > u2 . for_test , expr_output , sizeof ( expr_output ) ) ;
strp = strchr ( item - > u3 . for_inc , ' = ' ) ;
if ( strp ) {
ast_expr ( strp + 1 , expr_output , sizeof ( expr_output ) ) ;
}
if ( strpbrk ( item - > u2 . for_test , " ~!-+<>=*/&^ " ) & & ! strstr ( item - > u2 . for_test , " ${ " ) ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: expression %s has operators, but no variables. Interesting... \n " ,
item - > filename , item - > startline , item - > endline , item - > u2 . for_test ) ;
warns + + ;
}
if ( strpbrk ( item - > u3 . for_inc , " ~!-+<>=*/&^ " ) & & ! strstr ( item - > u3 . for_inc , " ${ " ) ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: expression %s has operators, but no variables. Interesting... \n " ,
item - > filename , item - > startline , item - > endline , item - > u3 . for_inc ) ;
warns + + ;
}
check_expr2_input ( item , item - > u2 . for_test ) ;
check_expr2_input ( item , item - > u3 . for_inc ) ;
ast_expr_clear_extra_error_info ( ) ;
check_pval ( item - > u4 . for_statements , apps ) ;
break ;
case PV_WHILE :
/* fields: item->u1.str == the while conditional, as supplied by user
item - > u2 . statements = = a pval list of statements in the while ( )
*/
snprintf ( errmsg , sizeof ( errmsg ) , " file %s, line %d, columns %d-%d, while expr '%s': " , config , item - > startline , item - > startcol , item - > endcol , item - > u1 . str ) ;
ast_expr_register_extra_error_info ( errmsg ) ;
ast_expr ( item - > u1 . str , expr_output , sizeof ( expr_output ) ) ;
ast_expr_clear_extra_error_info ( ) ;
if ( strpbrk ( item - > u1 . str , " ~!-+<>=*/&^ " ) & & ! strstr ( item - > u1 . str , " ${ " ) ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: expression %s has operators, but no variables. Interesting... \n " ,
item - > filename , item - > startline , item - > endline , item - > u1 . str ) ;
warns + + ;
}
check_expr2_input ( item , item - > u1 . str ) ;
check_pval ( item - > u2 . statements , apps ) ;
break ;
case PV_BREAK :
/* fields: none
*/
break ;
case PV_RETURN :
/* fields: none
*/
break ;
case PV_CONTINUE :
/* fields: none
*/
break ;
case PV_RANDOM :
/* fields: item->u1.str == the random number expression, as supplied by user
item - > u2 . statements = = a pval list of statements in the if ( )
item - > u3 . else_statements = = a pval list of statements in the else
( could be zero )
*/
snprintf ( errmsg , sizeof ( errmsg ) , " file %s, line %d, columns %d-%d, random expr '%s': " , config , item - > startline , item - > startcol , item - > endcol , item - > u1 . str ) ;
ast_expr_register_extra_error_info ( errmsg ) ;
ast_expr ( item - > u1 . str , expr_output , sizeof ( expr_output ) ) ;
ast_expr_clear_extra_error_info ( ) ;
if ( strpbrk ( item - > u1 . str , " ~!-+<>=*/&^ " ) & & ! strstr ( item - > u1 . str , " ${ " ) ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: random expression '%s' has operators, but no variables. Interesting... \n " ,
item - > filename , item - > startline , item - > endline , item - > u1 . str ) ;
warns + + ;
}
check_expr2_input ( item , item - > u1 . str ) ;
check_pval ( item - > u2 . statements , apps ) ;
if ( item - > u3 . else_statements ) {
check_pval ( item - > u3 . else_statements , apps ) ;
}
break ;
case PV_IFTIME :
/* fields: item->u1.list == the if time values, 4 of them, each in PV_WORD, linked list
item - > u2 . statements = = a pval list of statements in the if ( )
item - > u3 . else_statements = = a pval list of statements in the else
( could be zero )
*/
if ( item - > u2 . arglist ) {
check_timerange ( item - > u1 . list ) ;
check_dow ( item - > u1 . list - > next ) ;
check_day ( item - > u1 . list - > next - > next ) ;
check_month ( item - > u1 . list - > next - > next - > next ) ;
}
check_pval ( item - > u2 . statements , apps ) ;
if ( item - > u3 . else_statements ) {
check_pval ( item - > u3 . else_statements , apps ) ;
}
break ;
case PV_IF :
/* fields: item->u1.str == the if conditional, as supplied by user
item - > u2 . statements = = a pval list of statements in the if ( )
item - > u3 . else_statements = = a pval list of statements in the else
( could be zero )
*/
snprintf ( errmsg , sizeof ( errmsg ) , " file %s, line %d, columns %d-%d, if expr '%s': " , config , item - > startline , item - > startcol , item - > endcol , item - > u1 . str ) ;
ast_expr_register_extra_error_info ( errmsg ) ;
ast_expr ( item - > u1 . str , expr_output , sizeof ( expr_output ) ) ;
ast_expr_clear_extra_error_info ( ) ;
if ( strpbrk ( item - > u1 . str , " ~!-+<>=*/&^ " ) & & ! strstr ( item - > u1 . str , " ${ " ) ) {
ast_log ( LOG_WARNING , " Warning: file %s, line %d-%d: expression '%s' has operators, but no variables. Interesting... \n " ,
item - > filename , item - > startline , item - > endline , item - > u1 . str ) ;
warns + + ;
}
check_expr2_input ( item , item - > u1 . str ) ;
check_pval ( item - > u2 . statements , apps ) ;
if ( item - > u3 . else_statements ) {
check_pval ( item - > u3 . else_statements , apps ) ;
}
break ;
case PV_SWITCH :
/* fields: item->u1.str == the switch expression
item - > u2 . statements = = a pval list of statements in the switch ,
( will be case statements , most likely ! )
*/
/* we can check the switch expression, see if it matches any of the app variables...
if it does , then , are all the possible cases accounted for ? */
check_switch_expr ( item , apps ) ;
check_pval ( item - > u2 . statements , apps ) ;
break ;
case PV_EXTENSION :
/* fields: item->u1.str == the extension name, label, whatever it's called
item - > u2 . statements = = a pval list of statements in the extension
item - > u3 . hints = = a char * hint argument
item - > u4 . regexten = = an int boolean . non - zero says that regexten was specified
*/
current_extension = item ;
check_pval ( item - > u2 . statements , apps ) ;
break ;
case PV_IGNOREPAT :
/* fields: item->u1.str == the ignorepat data
*/
break ;
case PV_GLOBALS :
/* fields: item->u1.statements == pval list of statements, usually vardecs
*/
in_abstract_context = 0 ;
check_pval ( item - > u1 . statements , apps ) ;
break ;
default :
break ;
}
}
void check_pval ( pval * item , struct argapp * apps )
{
pval * i ;
/* checks to do:
1. Do goto ' s point to actual labels ?
2. Do macro calls reference a macro ?
3. Does the number of macro args match the definition ?
4. Is a macro call missing its & at the front ?
5. Application calls - - we could check syntax for existing applications ,
but I need some some sort of universal description bnf for a general
sort of method for checking arguments , in number , maybe even type , at least .
Don ' t want to hand code checks for hundreds of applications .
*/
for ( i = item ; i ; i = i - > next ) {
check_pval_item ( i , apps ) ;
}
}
void ael2_semantic_check ( pval * item , int * arg_errs , int * arg_warns , int * arg_notes )
{
# ifdef AAL_ARGCHECK
int argapp_errs = 0 ;
char * rfilename ;
# endif
struct argapp * apps = 0 ;
# ifdef AAL_ARGCHECK
rfilename = alloca ( 10 + strlen ( ast_config_AST_VAR_DIR ) ) ;
sprintf ( rfilename , " %s/applist " , ast_config_AST_VAR_DIR ) ;
apps = argdesc_parse ( rfilename , & argapp_errs ) ; /* giveth */
# endif
current_db = item ;
errs = warns = notes = 0 ;
check_context_names ( ) ;
check_pval ( item , apps ) ;
# ifdef AAL_ARGCHECK
argdesc_destroy ( apps ) ; /* taketh away */
# endif
current_db = 0 ;
* arg_errs = errs ;
* arg_warns = warns ;
* arg_notes = notes ;
}
/* =============================================================================================== */
/* "CODE" GENERATOR -- Convert the AEL representation to asterisk extension language */
/* =============================================================================================== */
static int control_statement_count = 0 ;
struct ael_priority * new_prio ( void )
{
struct ael_priority * x = ( struct ael_priority * ) calloc ( sizeof ( struct ael_priority ) , 1 ) ;
return x ;
}
struct ael_extension * new_exten ( void )
{
struct ael_extension * x = ( struct ael_extension * ) calloc ( sizeof ( struct ael_extension ) , 1 ) ;
return x ;
}
void linkprio ( struct ael_extension * exten , struct ael_priority * prio )
{
if ( ! exten - > plist ) {
exten - > plist = prio ;
exten - > plist_last = prio ;
} else {
exten - > plist_last - > next = prio ;
exten - > plist_last = prio ;
}
}
void destroy_extensions ( struct ael_extension * exten )
{
struct ael_extension * ne , * nen ;
for ( ne = exten ; ne ; ne = nen ) {
struct ael_priority * pe , * pen ;
if ( ne - > name )
free ( ne - > name ) ;
if ( ne - > hints )
free ( ne - > hints ) ;
for ( pe = ne - > plist ; pe ; pe = pen ) {
pen = pe - > next ;
if ( pe - > app )
free ( pe - > app ) ;
pe - > app = 0 ;
if ( pe - > appargs )
free ( pe - > appargs ) ;
pe - > appargs = 0 ;
pe - > origin = 0 ;
pe - > goto_true = 0 ;
pe - > goto_false = 0 ;
free ( pe ) ;
}
nen = ne - > next_exten ;
ne - > next_exten = 0 ;
ne - > plist = 0 ;
ne - > plist_last = 0 ;
ne - > next_exten = 0 ;
ne - > loop_break = 0 ;
ne - > loop_continue = 0 ;
free ( ne ) ;
}
}
void linkexten ( struct ael_extension * exten , struct ael_extension * add )
{
add - > next_exten = exten - > next_exten ; /* this will reverse the order. Big deal. */
exten - > next_exten = add ;
}
void gen_prios ( struct ael_extension * exten , char * label , pval * statement , struct ael_extension * mother_exten )
{
pval * p , * p2 , * p3 ;
struct ael_priority * pr ;
struct ael_priority * for_init , * for_test , * for_inc , * for_loop , * for_end ;
struct ael_priority * while_test , * while_loop , * while_end ;
struct ael_priority * switch_test , * switch_end , * fall_thru ;
struct ael_priority * if_test , * if_end , * if_skip , * if_false ;
# ifdef OLD_RAND_ACTION
struct ael_priority * rand_test , * rand_end , * rand_skip ;
# endif
char buf1 [ 2000 ] ;
char buf2 [ 2000 ] ;
char * strp , * strp2 ;
char new_label [ 2000 ] ;
int default_exists ;
struct ael_priority * loop_break_save ;
struct ael_priority * loop_continue_save ;
struct ael_extension * switch_case ;
for ( p = statement ; p ; p = p - > next ) {
switch ( p - > type ) {
case PV_VARDEC :
pr = new_prio ( ) ;
pr - > type = AEL_APPCALL ;
snprintf ( buf1 , sizeof ( buf1 ) , " %s=$[%s] " , p - > u1 . str , p - > u2 . val ) ;
pr - > app = strdup ( " Set " ) ;
pr - > appargs = strdup ( buf1 ) ;
pr - > origin = p ;
linkprio ( exten , pr ) ;
break ;
case PV_GOTO :
pr = new_prio ( ) ;
pr - > type = AEL_APPCALL ;
if ( ! p - > u1 . list - > next ) /* just one */ {
pr - > app = strdup ( " Goto " ) ;
if ( ! mother_exten )
pr - > appargs = strdup ( p - > u1 . list - > u1 . str ) ;
else { /* for the case of simple within-extension gotos in case/pattern/default statement blocks: */
snprintf ( buf1 , sizeof ( buf1 ) , " %s|%s " , mother_exten - > name , p - > u1 . list - > u1 . str ) ;
pr - > appargs = strdup ( buf1 ) ;
}
} else if ( p - > u1 . list - > next & & ! p - > u1 . list - > next - > next ) /* two */ {
snprintf ( buf1 , sizeof ( buf1 ) , " %s|%s " , p - > u1 . list - > u1 . str , p - > u1 . list - > next - > u1 . str ) ;
pr - > app = strdup ( " Goto " ) ;
pr - > appargs = strdup ( buf1 ) ;
} else if ( p - > u1 . list - > next & & p - > u1 . list - > next - > next ) {
snprintf ( buf1 , sizeof ( buf1 ) , " %s|%s|%s " , p - > u1 . list - > u1 . str ,
p - > u1 . list - > next - > u1 . str ,
p - > u1 . list - > next - > next - > u1 . str ) ;
pr - > app = strdup ( " Goto " ) ;
pr - > appargs = strdup ( buf1 ) ;
}
pr - > origin = p ;
linkprio ( exten , pr ) ;
break ;
case PV_LABEL :
pr = new_prio ( ) ;
pr - > type = AEL_LABEL ;
pr - > origin = p ;
linkprio ( exten , pr ) ;
break ;
case PV_FOR :
control_statement_count + + ;
loop_break_save = exten - > loop_break ; /* save them, then restore before leaving */
loop_continue_save = exten - > loop_continue ;
snprintf ( new_label , sizeof ( new_label ) , " for-%s-%d " , label , control_statement_count ) ;
for_init = new_prio ( ) ;
for_inc = new_prio ( ) ;
for_test = new_prio ( ) ;
for_loop = new_prio ( ) ;
for_end = new_prio ( ) ;
for_init - > type = AEL_APPCALL ;
for_inc - > type = AEL_APPCALL ;
for_test - > type = AEL_FOR_CONTROL ;
for_test - > goto_false = for_end ;
for_loop - > type = AEL_CONTROL1 ; /* simple goto */
for_end - > type = AEL_APPCALL ;
for_init - > app = strdup ( " Set " ) ;
strcpy ( buf2 , p - > u1 . for_init ) ;
strp = strchr ( buf2 , ' = ' ) ;
strp2 = strchr ( p - > u1 . for_init , ' = ' ) ;
if ( strp ) {
* ( strp + 1 ) = 0 ;
strcat ( buf2 , " $[ " ) ;
strncat ( buf2 , strp2 + 1 , sizeof ( buf2 ) - strlen ( strp2 + 1 ) - 2 ) ;
strcat ( buf2 , " ] " ) ;
for_init - > appargs = strdup ( buf2 ) ;
} else
for_init - > appargs = strdup ( p - > u1 . for_init ) ;
for_inc - > app = strdup ( " Set " ) ;
strcpy ( buf2 , p - > u3 . for_inc ) ;
strp = strchr ( buf2 , ' = ' ) ;
strp2 = strchr ( p - > u3 . for_inc , ' = ' ) ;
if ( strp ) {
* ( strp + 1 ) = 0 ;
strcat ( buf2 , " $[ " ) ;
strncat ( buf2 , strp2 + 1 , sizeof ( buf2 ) - strlen ( strp2 + 1 ) - 2 ) ;
strcat ( buf2 , " ] " ) ;
for_inc - > appargs = strdup ( buf2 ) ;
} else
for_inc - > appargs = strdup ( p - > u3 . for_inc ) ;
snprintf ( buf1 , sizeof ( buf1 ) , " $[%s] " , p - > u2 . for_test ) ;
for_test - > app = 0 ;
for_test - > appargs = strdup ( buf1 ) ;
for_loop - > goto_true = for_test ;
snprintf ( buf1 , sizeof ( buf1 ) , " Finish for-%s-%d " , label , control_statement_count ) ;
for_end - > app = strdup ( " NoOp " ) ;
for_end - > appargs = strdup ( buf1 ) ;
/* link & load! */
linkprio ( exten , for_init ) ;
linkprio ( exten , for_test ) ;
/* now, put the body of the for loop here */
exten - > loop_break = for_end ;
exten - > loop_continue = for_test ;
gen_prios ( exten , new_label , p - > u4 . for_statements , mother_exten ) ; /* this will link in all the statements here */
linkprio ( exten , for_inc ) ;
linkprio ( exten , for_loop ) ;
linkprio ( exten , for_end ) ;
exten - > loop_break = loop_break_save ;
exten - > loop_continue = loop_continue_save ;
for_loop - > origin = p ;
break ;
case PV_WHILE :
control_statement_count + + ;
loop_break_save = exten - > loop_break ; /* save them, then restore before leaving */
loop_continue_save = exten - > loop_continue ;
snprintf ( new_label , sizeof ( new_label ) , " while-%s-%d " , label , control_statement_count ) ;
while_test = new_prio ( ) ;
while_loop = new_prio ( ) ;
while_end = new_prio ( ) ;
while_test - > type = AEL_FOR_CONTROL ;
while_test - > goto_false = while_end ;
while_loop - > type = AEL_CONTROL1 ; /* simple goto */
while_end - > type = AEL_APPCALL ;
snprintf ( buf1 , sizeof ( buf1 ) , " $[%s] " , p - > u1 . str ) ;
while_test - > app = 0 ;
while_test - > appargs = strdup ( buf1 ) ;
while_loop - > goto_true = while_test ;
snprintf ( buf1 , sizeof ( buf1 ) , " Finish while-%s-%d " , label , control_statement_count ) ;
while_end - > app = strdup ( " NoOp " ) ;
while_end - > appargs = strdup ( buf1 ) ;
linkprio ( exten , while_test ) ;
/* now, put the body of the for loop here */
exten - > loop_break = while_end ;
exten - > loop_continue = while_test ;
gen_prios ( exten , new_label , p - > u2 . statements , mother_exten ) ; /* this will link in all the while body statements here */
linkprio ( exten , while_loop ) ;
linkprio ( exten , while_end ) ;
exten - > loop_break = loop_break_save ;
exten - > loop_continue = loop_continue_save ;
while_loop - > origin = p ;
break ;
case PV_SWITCH :
control_statement_count + + ;
loop_break_save = exten - > loop_break ; /* save them, then restore before leaving */
loop_continue_save = exten - > loop_continue ;
snprintf ( new_label , sizeof ( new_label ) , " sw-%s-%d " , label , control_statement_count ) ;
switch_test = new_prio ( ) ;
switch_end = new_prio ( ) ;
switch_test - > type = AEL_APPCALL ;
switch_end - > type = AEL_APPCALL ;
snprintf ( buf1 , sizeof ( buf1 ) , " sw-%d-%s|1 " , control_statement_count , p - > u1 . str ) ;
switch_test - > app = strdup ( " Goto " ) ;
switch_test - > appargs = strdup ( buf1 ) ;
snprintf ( buf1 , sizeof ( buf1 ) , " Finish switch-%s-%d " , label , control_statement_count ) ;
switch_end - > app = strdup ( " NoOp " ) ;
switch_end - > appargs = strdup ( buf1 ) ;
switch_end - > origin = p ;
switch_end - > exten = exten ;
linkprio ( exten , switch_test ) ;
linkprio ( exten , switch_end ) ;
exten - > loop_break = switch_end ;
exten - > loop_continue = 0 ;
default_exists = 0 ;
for ( p2 = p - > u2 . statements ; p2 ; p2 = p2 - > next ) {
/* now, for each case/default put the body of the for loop here */
if ( p2 - > type = = PV_CASE ) {
/* ok, generate a extension and link it in */
switch_case = new_exten ( ) ;
/* the break/continue locations are inherited from parent */
switch_case - > loop_break = exten - > loop_break ;
switch_case - > loop_continue = exten - > loop_continue ;
linkexten ( exten , switch_case ) ;
snprintf ( buf1 , sizeof ( buf1 ) , " sw-%d-%s " , control_statement_count , p2 - > u1 . str ) ;
switch_case - > name = strdup ( buf1 ) ;
snprintf ( new_label , sizeof ( new_label ) , " sw-%s-%s-%d " , label , p2 - > u1 . str , control_statement_count ) ;
gen_prios ( switch_case , new_label , p2 - > u2 . statements , exten ) ; /* this will link in all the case body statements here */
/* here is where we write code to "fall thru" to the next case... if there is one... */
for ( p3 = p2 - > u2 . statements ; p3 ; p3 = p3 - > next ) {
if ( ! p3 - > next )
break ;
}
/* p3 now points the last statement... */
if ( ! p3 | | ( p3 - > type ! = PV_GOTO & & p3 - > type ! = PV_BREAK & & p3 - > type ! = PV_RETURN ) ) {
/* is there a following CASE/PATTERN/DEFAULT? */
if ( p2 - > next & & p2 - > next - > type = = PV_CASE ) {
fall_thru = new_prio ( ) ;
fall_thru - > type = AEL_APPCALL ;
fall_thru - > app = strdup ( " Goto " ) ;
snprintf ( buf1 , sizeof ( buf1 ) , " sw-%d-%s|1 " , control_statement_count , p2 - > next - > u1 . str ) ;
fall_thru - > appargs = strdup ( buf1 ) ;
linkprio ( switch_case , fall_thru ) ;
} else if ( p2 - > next & & p2 - > next - > type = = PV_PATTERN ) {
fall_thru = new_prio ( ) ;
fall_thru - > type = AEL_APPCALL ;
fall_thru - > app = strdup ( " Goto " ) ;
snprintf ( buf1 , sizeof ( buf1 ) , " _sw-%d-%s|1 " , control_statement_count , p2 - > next - > u1 . str ) ;
fall_thru - > appargs = strdup ( buf1 ) ;
linkprio ( switch_case , fall_thru ) ;
} else if ( p2 - > next & & p2 - > next - > type = = PV_DEFAULT ) {
fall_thru = new_prio ( ) ;
fall_thru - > type = AEL_APPCALL ;
fall_thru - > app = strdup ( " Goto " ) ;
snprintf ( buf1 , sizeof ( buf1 ) , " _sw-%d-.|1 " , control_statement_count ) ;
fall_thru - > appargs = strdup ( buf1 ) ;
linkprio ( switch_case , fall_thru ) ;
} else if ( ! p2 - > next ) {
fall_thru = new_prio ( ) ;
fall_thru - > type = AEL_CONTROL1 ;
fall_thru - > goto_true = switch_end ;
fall_thru - > app = strdup ( " Goto " ) ;
linkprio ( switch_case , fall_thru ) ;
}
}
if ( switch_case - > return_needed ) {
char buf [ 2000 ] ;
struct ael_priority * np2 = new_prio ( ) ;
np2 - > type = AEL_APPCALL ;
np2 - > app = strdup ( " NoOp " ) ;
snprintf ( buf , sizeof ( buf ) , " End of Extension %s " , switch_case - > name ) ;
np2 - > appargs = strdup ( buf ) ;
linkprio ( switch_case , np2 ) ;
switch_case - > return_target = np2 ;
}
} else if ( p2 - > type = = PV_PATTERN ) {
/* ok, generate a extension and link it in */
switch_case = new_exten ( ) ;
/* the break/continue locations are inherited from parent */
switch_case - > loop_break = exten - > loop_break ;
switch_case - > loop_continue = exten - > loop_continue ;
linkexten ( exten , switch_case ) ;
snprintf ( buf1 , sizeof ( buf1 ) , " _sw-%d-%s " , control_statement_count , p2 - > u1 . str ) ;
switch_case - > name = strdup ( buf1 ) ;
snprintf ( new_label , sizeof ( new_label ) , " sw-%s-%s-%d " , label , p2 - > u1 . str , control_statement_count ) ;
gen_prios ( switch_case , new_label , p2 - > u2 . statements , exten ) ; /* this will link in all the while body statements here */
/* here is where we write code to "fall thru" to the next case... if there is one... */
for ( p3 = p2 - > u2 . statements ; p3 ; p3 = p3 - > next ) {
if ( ! p3 - > next )
break ;
}
/* p3 now points the last statement... */
if ( ! p3 | | ( p3 - > type ! = PV_GOTO & & p3 - > type ! = PV_BREAK & & p3 - > type ! = PV_RETURN ) ) {
/* is there a following CASE/PATTERN/DEFAULT? */
if ( p2 - > next & & p2 - > next - > type = = PV_CASE ) {
fall_thru = new_prio ( ) ;
fall_thru - > type = AEL_APPCALL ;
fall_thru - > app = strdup ( " Goto " ) ;
snprintf ( buf1 , sizeof ( buf1 ) , " sw-%d-%s|1 " , control_statement_count , p2 - > next - > u1 . str ) ;
fall_thru - > appargs = strdup ( buf1 ) ;
linkprio ( switch_case , fall_thru ) ;
} else if ( p2 - > next & & p2 - > next - > type = = PV_PATTERN ) {
fall_thru = new_prio ( ) ;
fall_thru - > type = AEL_APPCALL ;
fall_thru - > app = strdup ( " Goto " ) ;
snprintf ( buf1 , sizeof ( buf1 ) , " _sw-%d-%s|1 " , control_statement_count , p2 - > next - > u1 . str ) ;
fall_thru - > appargs = strdup ( buf1 ) ;
linkprio ( switch_case , fall_thru ) ;
} else if ( p2 - > next & & p2 - > next - > type = = PV_DEFAULT ) {
fall_thru = new_prio ( ) ;
fall_thru - > type = AEL_APPCALL ;
fall_thru - > app = strdup ( " Goto " ) ;
snprintf ( buf1 , sizeof ( buf1 ) , " _sw-%d-.|1 " , control_statement_count ) ;
fall_thru - > appargs = strdup ( buf1 ) ;
linkprio ( switch_case , fall_thru ) ;
} else if ( ! p2 - > next ) {
fall_thru = new_prio ( ) ;
fall_thru - > type = AEL_CONTROL1 ;
fall_thru - > goto_true = switch_end ;
fall_thru - > app = strdup ( " Goto " ) ;
linkprio ( switch_case , fall_thru ) ;
}
}
if ( switch_case - > return_needed ) {
char buf [ 2000 ] ;
struct ael_priority * np2 = new_prio ( ) ;
np2 - > type = AEL_APPCALL ;
np2 - > app = strdup ( " NoOp " ) ;
snprintf ( buf , sizeof ( buf ) , " End of Extension %s " , switch_case - > name ) ;
np2 - > appargs = strdup ( buf ) ;
linkprio ( switch_case , np2 ) ;
switch_case - > return_target = np2 ;
}
} else if ( p2 - > type = = PV_DEFAULT ) {
default_exists + + ;
/* ok, generate a extension and link it in */
switch_case = new_exten ( ) ;
/* the break/continue locations are inherited from parent */
switch_case - > loop_break = exten - > loop_break ;
switch_case - > loop_continue = exten - > loop_continue ;
linkexten ( exten , switch_case ) ;
snprintf ( buf1 , sizeof ( buf1 ) , " _sw-%d-. " , control_statement_count ) ;
switch_case - > name = strdup ( buf1 ) ;
snprintf ( new_label , sizeof ( new_label ) , " sw-%s-default-%d " , label , control_statement_count ) ;
gen_prios ( switch_case , new_label , p2 - > u2 . statements , exten ) ; /* this will link in all the while body statements here */
/* here is where we write code to "fall thru" to the next case... if there is one... */
for ( p3 = p2 - > u2 . statements ; p3 ; p3 = p3 - > next ) {
if ( ! p3 - > next )
break ;
}
/* p3 now points the last statement... */
if ( ! p3 | | ( p3 - > type ! = PV_GOTO & & p3 - > type ! = PV_BREAK & & p3 - > type ! = PV_RETURN ) ) {
/* is there a following CASE/PATTERN/DEFAULT? */
if ( p2 - > next & & p2 - > next - > type = = PV_CASE ) {
fall_thru = new_prio ( ) ;
fall_thru - > type = AEL_APPCALL ;
fall_thru - > app = strdup ( " Goto " ) ;
snprintf ( buf1 , sizeof ( buf1 ) , " sw-%d-%s|1 " , control_statement_count , p2 - > next - > u1 . str ) ;
fall_thru - > appargs = strdup ( buf1 ) ;
linkprio ( switch_case , fall_thru ) ;
} else if ( p2 - > next & & p2 - > next - > type = = PV_PATTERN ) {
fall_thru = new_prio ( ) ;
fall_thru - > type = AEL_APPCALL ;
fall_thru - > app = strdup ( " Goto " ) ;
snprintf ( buf1 , sizeof ( buf1 ) , " _sw-%d-%s|1 " , control_statement_count , p2 - > next - > u1 . str ) ;
fall_thru - > appargs = strdup ( buf1 ) ;
linkprio ( switch_case , fall_thru ) ;
} else if ( p2 - > next & & p2 - > next - > type = = PV_DEFAULT ) {
fall_thru = new_prio ( ) ;
fall_thru - > type = AEL_APPCALL ;
fall_thru - > app = strdup ( " Goto " ) ;
snprintf ( buf1 , sizeof ( buf1 ) , " _sw-%d-.|1 " , control_statement_count ) ;
fall_thru - > appargs = strdup ( buf1 ) ;
linkprio ( switch_case , fall_thru ) ;
} else if ( ! p2 - > next ) {
fall_thru = new_prio ( ) ;
fall_thru - > type = AEL_CONTROL1 ;
fall_thru - > goto_true = switch_end ;
fall_thru - > app = strdup ( " Goto " ) ;
linkprio ( switch_case , fall_thru ) ;
}
}
if ( switch_case - > return_needed ) {
char buf [ 2000 ] ;
struct ael_priority * np2 = new_prio ( ) ;
np2 - > type = AEL_APPCALL ;
np2 - > app = strdup ( " NoOp " ) ;
snprintf ( buf , sizeof ( buf ) , " End of Extension %s " , switch_case - > name ) ;
np2 - > appargs = strdup ( buf ) ;
linkprio ( switch_case , np2 ) ;
switch_case - > return_target = np2 ;
}
} else {
/* what could it be??? */
}
}
exten - > loop_break = loop_break_save ;
exten - > loop_continue = loop_continue_save ;
switch_test - > origin = p ;
switch_end - > origin = p ;
break ;
case PV_MACRO_CALL :
pr = new_prio ( ) ;
pr - > type = AEL_APPCALL ;
snprintf ( buf1 , sizeof ( buf1 ) , " %s " , p - > u1 . str ) ;
for ( p2 = p - > u2 . arglist ; p2 ; p2 = p2 - > next ) {
strcat ( buf1 , " | " ) ;
strcat ( buf1 , p2 - > u1 . str ) ;
}
pr - > app = strdup ( " Macro " ) ;
pr - > appargs = strdup ( buf1 ) ;
pr - > origin = p ;
linkprio ( exten , pr ) ;
break ;
case PV_APPLICATION_CALL :
pr = new_prio ( ) ;
pr - > type = AEL_APPCALL ;
buf1 [ 0 ] = 0 ;
for ( p2 = p - > u2 . arglist ; p2 ; p2 = p2 - > next ) {
if ( p2 ! = p - > u2 . arglist )
strcat ( buf1 , " | " ) ;
strcat ( buf1 , p2 - > u1 . str ) ;
}
pr - > app = strdup ( p - > u1 . str ) ;
pr - > appargs = strdup ( buf1 ) ;
pr - > origin = p ;
linkprio ( exten , pr ) ;
break ;
case PV_BREAK :
pr = new_prio ( ) ;
pr - > type = AEL_CONTROL1 ; /* simple goto */
pr - > goto_true = exten - > loop_break ;
pr - > origin = p ;
linkprio ( exten , pr ) ;
break ;
case PV_RETURN : /* hmmmm */
pr = new_prio ( ) ;
pr - > type = AEL_RETURN ; /* simple goto */
exten - > return_needed + + ;
pr - > app = strdup ( " Goto " ) ;
pr - > appargs = strdup ( " " ) ;
pr - > origin = p ;
linkprio ( exten , pr ) ;
break ;
case PV_CONTINUE :
pr = new_prio ( ) ;
pr - > type = AEL_CONTROL1 ; /* simple goto */
pr - > goto_true = exten - > loop_continue ;
pr - > origin = p ;
linkprio ( exten , pr ) ;
break ;
# ifdef OLD_RAND_ACTION
case PV_RANDOM :
control_statement_count + + ;
snprintf ( new_label , sizeof ( new_label ) , " rand-%s-%d " , label , control_statement_count ) ;
rand_test = new_prio ( ) ;
rand_test - > type = AEL_RAND_CONTROL ;
snprintf ( buf1 , sizeof ( buf1 ) , " $[%s] " ,
p - > u1 . str ) ;
rand_test - > app = 0 ;
rand_test - > appargs = strdup ( buf1 ) ;
rand_test - > origin = p ;
rand_end = new_prio ( ) ;
rand_end - > type = AEL_APPCALL ;
snprintf ( buf1 , sizeof ( buf1 ) , " Finish rand-%s-%d " , label , control_statement_count ) ;
rand_end - > app = strdup ( " NoOp " ) ;
rand_end - > appargs = strdup ( buf1 ) ;
rand_skip = new_prio ( ) ;
rand_skip - > type = AEL_CONTROL1 ; /* simple goto */
rand_skip - > goto_true = rand_end ;
rand_skip - > origin = p ;
rand_test - > goto_true = rand_skip ; /* +1, really */
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linkprio ( exten , rand_test ) ;
if ( p - > u3 . else_statements ) {
gen_prios ( exten , new_label , p - > u3 . else_statements , mother_exten ) ; /* this will link in all the else statements here */
}
linkprio ( exten , rand_skip ) ;
gen_prios ( exten , new_label , p - > u2 . statements , mother_exten ) ; /* this will link in all the "true" statements here */
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linkprio ( exten , rand_end ) ;
break ;
# endif
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case PV_IFTIME :
control_statement_count + + ;
snprintf ( new_label , sizeof ( new_label ) , " iftime-%s-%d " , label , control_statement_count ) ;
if_test = new_prio ( ) ;
if_test - > type = AEL_IFTIME_CONTROL ;
snprintf ( buf1 , sizeof ( buf1 ) , " %s|%s|%s|%s " ,
p - > u1 . list - > u1 . str ,
p - > u1 . list - > next - > u1 . str ,
p - > u1 . list - > next - > next - > u1 . str ,
p - > u1 . list - > next - > next - > next - > u1 . str ) ;
if_test - > app = 0 ;
if_test - > appargs = strdup ( buf1 ) ;
if_test - > origin = p ;
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if_end = new_prio ( ) ;
if_end - > type = AEL_APPCALL ;
snprintf ( buf1 , sizeof ( buf1 ) , " Finish iftime-%s-%d " , label , control_statement_count ) ;
if_end - > app = strdup ( " NoOp " ) ;
if_end - > appargs = strdup ( buf1 ) ;
if ( p - > u3 . else_statements ) {
if_skip = new_prio ( ) ;
if_skip - > type = AEL_CONTROL1 ; /* simple goto */
if_skip - > goto_true = if_end ;
if_skip - > origin = p ;
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} else {
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if_skip = 0 ;
if_test - > goto_false = if_end ;
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}
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if_false = new_prio ( ) ;
if_false - > type = AEL_CONTROL1 ;
if ( p - > u3 . else_statements ) {
if_false - > goto_true = if_skip ; /* +1 */
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} else {
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if_false - > goto_true = if_end ;
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}
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/* link & load! */
linkprio ( exten , if_test ) ;
linkprio ( exten , if_false ) ;
/* now, put the body of the if here */
gen_prios ( exten , new_label , p - > u2 . statements , mother_exten ) ; /* this will link in all the statements here */
if ( p - > u3 . else_statements ) {
linkprio ( exten , if_skip ) ;
gen_prios ( exten , new_label , p - > u3 . else_statements , mother_exten ) ; /* this will link in all the statements here */
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}
linkprio ( exten , if_end ) ;
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break ;
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case PV_RANDOM :
case PV_IF :
control_statement_count + + ;
snprintf ( new_label , sizeof ( new_label ) , " if-%s-%d " , label , control_statement_count ) ;
if_test = new_prio ( ) ;
if_end = new_prio ( ) ;
if_test - > type = AEL_IF_CONTROL ;
if_end - > type = AEL_APPCALL ;
if ( p - > type = = PV_RANDOM )
snprintf ( buf1 , sizeof ( buf1 ) , " $[${RAND(0,99)} < (%s)] " , p - > u1 . str ) ;
else
snprintf ( buf1 , sizeof ( buf1 ) , " $[%s] " , p - > u1 . str ) ;
if_test - > app = 0 ;
if_test - > appargs = strdup ( buf1 ) ;
snprintf ( buf1 , sizeof ( buf1 ) , " Finish if-%s-%d " , label , control_statement_count ) ;
if_end - > app = strdup ( " NoOp " ) ;
if_end - > appargs = strdup ( buf1 ) ;
if_test - > origin = p ;
if ( p - > u3 . else_statements ) {
if_skip = new_prio ( ) ;
if_skip - > type = AEL_CONTROL1 ; /* simple goto */
if_skip - > goto_true = if_end ;
if_test - > goto_false = if_skip ; ;
} else {
if_skip = 0 ;
if_test - > goto_false = if_end ; ;
}
/* link & load! */
linkprio ( exten , if_test ) ;
/* now, put the body of the if here */
gen_prios ( exten , new_label , p - > u2 . statements , mother_exten ) ; /* this will link in all the statements here */
if ( p - > u3 . else_statements ) {
linkprio ( exten , if_skip ) ;
gen_prios ( exten , new_label , p - > u3 . else_statements , mother_exten ) ; /* this will link in all the statements here */
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}
linkprio ( exten , if_end ) ;
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break ;
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case PV_STATEMENTBLOCK :
gen_prios ( exten , label , p - > u1 . list , mother_exten ) ; /* recurse into the block */
break ;
case PV_CATCH :
control_statement_count + + ;
/* generate an extension with name of catch, put all catch stats
into this exten ! */
switch_case = new_exten ( ) ;
linkexten ( exten , switch_case ) ;
switch_case - > name = strdup ( p - > u1 . str ) ;
snprintf ( new_label , sizeof ( new_label ) , " catch-%s-%d " , p - > u1 . str , control_statement_count ) ;
gen_prios ( switch_case , new_label , p - > u2 . statements , mother_exten ) ; /* this will link in all the catch body statements here */
if ( switch_case - > return_needed ) {
char buf [ 2000 ] ;
struct ael_priority * np2 = new_prio ( ) ;
np2 - > type = AEL_APPCALL ;
np2 - > app = strdup ( " NoOp " ) ;
snprintf ( buf , sizeof ( buf ) , " End of Extension %s " , switch_case - > name ) ;
np2 - > appargs = strdup ( buf ) ;
linkprio ( switch_case , np2 ) ;
switch_case - > return_target = np2 ;
}
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break ;
default :
break ;
}
}
}
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void set_priorities ( struct ael_extension * exten )
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{
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int i ;
struct ael_priority * pr ;
do {
if ( exten - > regexten )
i = 2 ;
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else
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i = 1 ;
for ( pr = exten - > plist ; pr ; pr = pr - > next ) {
pr - > priority_num = i ;
if ( ! pr - > origin | | ( pr - > origin & & pr - > origin - > type ! = PV_LABEL ) ) /* Labels don't show up in the dialplan,
but we want them to point to the right
priority , which would be the next line
after the label ; */
i + + ;
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}
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exten = exten - > next_exten ;
} while ( exten ) ;
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}
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void add_extensions ( struct ael_extension * exten , struct ast_context * context )
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{
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struct ael_priority * pr ;
char * label = 0 ;
do {
struct ael_priority * last = 0 ;
if ( exten - > hints ) {
if ( ast_add_extension2 ( context , 0 /*no replace*/ , exten - > name , PRIORITY_HINT , NULL , NULL ,
exten - > hints , NULL , FREE , registrar ) ) {
ast_log ( LOG_WARNING , " Unable to add step at priority 'hint' of extension '%s' \n " ,
exten - > name ) ;
}
}
for ( pr = exten - > plist ; pr ; pr = pr - > next ) {
char app [ 2000 ] ;
char appargs [ 2000 ] ;
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/* before we can add the extension, we need to prep the app/appargs;
the CONTROL types need to be done after the priority numbers are calculated .
*/
if ( pr - > type = = AEL_LABEL ) /* don't try to put labels in the dialplan! */ {
last = pr ;
continue ;
}
if ( pr - > app )
strcpy ( app , pr - > app ) ;
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else
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app [ 0 ] = 0 ;
if ( pr - > appargs )
strcpy ( appargs , pr - > appargs ) ;
else
appargs [ 0 ] = 0 ;
switch ( pr - > type ) {
case AEL_APPCALL :
/* easy case. Everything is all set up */
break ;
case AEL_CONTROL1 : /* FOR loop, WHILE loop, BREAK, CONTINUE, IF, IFTIME */
/* simple, unconditional goto. */
strcpy ( app , " Goto " ) ;
if ( pr - > goto_true - > origin & & pr - > goto_true - > origin - > type = = PV_SWITCH ) {
snprintf ( appargs , sizeof ( appargs ) , " %s|%d " , pr - > goto_true - > exten - > name , pr - > goto_true - > priority_num ) ;
} else if ( pr - > goto_true - > origin & & pr - > goto_true - > origin - > type = = PV_IFTIME & & pr - > goto_true - > origin - > u3 . else_statements ) {
snprintf ( appargs , sizeof ( appargs ) , " %d " , pr - > goto_true - > priority_num + 1 ) ;
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} else
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snprintf ( appargs , sizeof ( appargs ) , " %d " , pr - > goto_true - > priority_num ) ;
break ;
case AEL_FOR_CONTROL : /* WHILE loop test, FOR loop test */
strcpy ( app , " GotoIf " ) ;
snprintf ( appargs , sizeof ( appargs ) , " %s?%d:%d " , pr - > appargs , pr - > priority_num + 1 , pr - > goto_false - > priority_num ) ;
break ;
case AEL_IF_CONTROL :
strcpy ( app , " GotoIf " ) ;
if ( pr - > origin - > u3 . else_statements )
snprintf ( appargs , sizeof ( appargs ) , " %s?%d:%d " , pr - > appargs , pr - > priority_num + 1 , pr - > goto_false - > priority_num + 1 ) ;
else
snprintf ( appargs , sizeof ( appargs ) , " %s?%d:%d " , pr - > appargs , pr - > priority_num + 1 , pr - > goto_false - > priority_num ) ;
break ;
case AEL_RAND_CONTROL :
strcpy ( app , " Random " ) ;
snprintf ( appargs , sizeof ( appargs ) , " %s:%d " , pr - > appargs , pr - > goto_true - > priority_num + 1 ) ;
break ;
case AEL_IFTIME_CONTROL :
strcpy ( app , " GotoIfTime " ) ;
snprintf ( appargs , sizeof ( appargs ) , " %s?%d " , pr - > appargs , pr - > priority_num + 2 ) ;
break ;
case AEL_RETURN :
strcpy ( app , " Goto " ) ;
snprintf ( appargs , sizeof ( appargs ) , " %d " , exten - > return_target - > priority_num ) ;
break ;
default :
break ;
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}
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if ( last & & last - > type = = AEL_LABEL ) {
label = last - > origin - > u1 . str ;
}
else
label = 0 ;
if ( ast_add_extension2 ( context , 0 /*no replace*/ , exten - > name , pr - > priority_num , ( label ? label : NULL ) , NULL ,
app , strdup ( appargs ) , FREE , registrar ) ) {
ast_log ( LOG_WARNING , " Unable to add step at priority '%d' of extension '%s' \n " , pr - > priority_num ,
exten - > name ) ;
}
last = pr ;
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}
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exten = exten - > next_exten ;
} while ( exten ) ;
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}
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void ast_compile_ael2 ( struct ast_context * * local_contexts , struct pval * root )
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{
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pval * p , * p2 ;
struct ast_context * context ;
char buf [ 2000 ] ;
struct ael_extension * exten ;
for ( p = root ; p ; p = p - > next ) {
pval * lp ;
int argc ;
switch ( p - > type ) {
case PV_MACRO :
strcpy ( buf , " macro- " ) ;
strcat ( buf , p - > u1 . str ) ;
context = ast_context_create ( local_contexts , buf , registrar ) ;
exten = new_exten ( ) ;
exten - > name = strdup ( " s " ) ;
argc = 1 ;
for ( lp = p - > u2 . arglist ; lp ; lp = lp - > next ) {
/* for each arg, set up a "Set" command */
struct ael_priority * np2 = new_prio ( ) ;
np2 - > type = AEL_APPCALL ;
np2 - > app = strdup ( " Set " ) ;
snprintf ( buf , sizeof ( buf ) , " %s=${ARG%d} " , lp - > u1 . str , argc + + ) ;
np2 - > appargs = strdup ( buf ) ;
linkprio ( exten , np2 ) ;
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}
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/* CONTAINS APPCALLS, CATCH, just like extensions... */
gen_prios ( exten , p - > u1 . str , p - > u3 . macro_statements , 0 ) ;
if ( exten - > return_needed ) {
struct ael_priority * np2 = new_prio ( ) ;
np2 - > type = AEL_APPCALL ;
np2 - > app = strdup ( " NoOp " ) ;
snprintf ( buf , sizeof ( buf ) , " End of Macro %s-%s " , p - > u1 . str , exten - > name ) ;
np2 - > appargs = strdup ( buf ) ;
linkprio ( exten , np2 ) ;
exten - > return_target = np2 ;
}
set_priorities ( exten ) ;
add_extensions ( exten , context ) ;
destroy_extensions ( exten ) ;
break ;
case PV_GLOBALS :
/* just VARDEC elements */
for ( p2 = p - > u1 . list ; p2 ; p2 = p2 - > next ) {
char buf2 [ 2000 ] ;
snprintf ( buf2 , sizeof ( buf2 ) , " %s=%s " , p2 - > u1 . str , p2 - > u2 . val ) ;
pbx_builtin_setvar ( NULL , buf2 ) ;
}
break ;
case PV_CONTEXT :
context = ast_context_create ( local_contexts , p - > u1 . str , registrar ) ;
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/* contexts contain: ignorepat, includes, switches, eswitches, extensions, */
for ( p2 = p - > u2 . statements ; p2 ; p2 = p2 - > next ) {
pval * p3 ;
switch ( p2 - > type ) {
case PV_EXTENSION :
exten = new_exten ( ) ;
exten - > name = strdup ( p2 - > u1 . str ) ;
if ( p2 - > u3 . hints )
exten - > hints = strdup ( p2 - > u3 . hints ) ;
exten - > regexten = p2 - > u4 . regexten ;
gen_prios ( exten , p - > u1 . str , p2 - > u2 . statements , 0 ) ;
if ( exten - > return_needed ) {
struct ael_priority * np2 = new_prio ( ) ;
np2 - > type = AEL_APPCALL ;
np2 - > app = strdup ( " NoOp " ) ;
snprintf ( buf , sizeof ( buf ) , " End of Extension %s " , exten - > name ) ;
np2 - > appargs = strdup ( buf ) ;
linkprio ( exten , np2 ) ;
exten - > return_target = np2 ;
}
/* is the last priority in the extension a label? Then add a trailing no-op */
if ( exten - > plist_last - > type = = AEL_LABEL ) {
struct ael_priority * np2 = new_prio ( ) ;
np2 - > type = AEL_APPCALL ;
np2 - > app = strdup ( " NoOp " ) ;
snprintf ( buf , sizeof ( buf ) , " A NoOp to follow a trailing label %s " , exten - > plist_last - > origin - > u1 . str ) ;
np2 - > appargs = strdup ( buf ) ;
linkprio ( exten , np2 ) ;
}
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set_priorities ( exten ) ;
add_extensions ( exten , context ) ;
destroy_extensions ( exten ) ;
break ;
case PV_IGNOREPAT :
ast_context_add_ignorepat2 ( context , p2 - > u1 . str , registrar ) ;
break ;
case PV_INCLUDES :
for ( p3 = p2 - > u1 . list ; p3 ; p3 = p3 - > next ) {
if ( p3 - > u2 . arglist ) {
snprintf ( buf , sizeof ( buf ) , " %s|%s|%s|%s|%s " ,
p3 - > u1 . str ,
p3 - > u2 . arglist - > u1 . str ,
p3 - > u2 . arglist - > next - > u1 . str ,
p3 - > u2 . arglist - > next - > next - > u1 . str ,
p3 - > u2 . arglist - > next - > next - > next - > u1 . str ) ;
ast_context_add_include2 ( context , buf , registrar ) ;
} else
ast_context_add_include2 ( context , p3 - > u1 . str , registrar ) ;
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}
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break ;
case PV_SWITCHES :
for ( p3 = p2 - > u1 . list ; p3 ; p3 = p3 - > next ) {
char * c = strchr ( p3 - > u1 . str , ' / ' ) ;
if ( c ) {
* c = ' \0 ' ;
c + + ;
} else
c = " " ;
ast_context_add_switch2 ( context , p3 - > u1 . str , c , 0 , registrar ) ;
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}
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break ;
case PV_ESWITCHES :
for ( p3 = p2 - > u1 . list ; p3 ; p3 = p3 - > next ) {
char * c = strchr ( p3 - > u1 . str , ' / ' ) ;
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if ( c ) {
* c = ' \0 ' ;
c + + ;
} else
c = " " ;
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ast_context_add_switch2 ( context , p3 - > u1 . str , c , 1 , registrar ) ;
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}
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break ;
default :
break ;
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}
}
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break ;
default :
/* huh? what? */
break ;
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}
}
}
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/* interface stuff */
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static int pbx_load_module ( void )
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{
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int errs , sem_err , sem_warn , sem_note ;
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char * rfilename ;
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struct ast_context * local_contexts = NULL , * con ;
struct pval * parse_tree ;
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ast_log ( LOG_NOTICE , " Starting AEL load process. \n " ) ;
if ( config [ 0 ] = = ' / ' )
rfilename = ( char * ) config ;
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else {
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rfilename = alloca ( strlen ( config ) + strlen ( ast_config_AST_CONFIG_DIR ) + 2 ) ;
sprintf ( rfilename , " %s/%s " , ast_config_AST_CONFIG_DIR , config ) ;
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}
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ast_log ( LOG_NOTICE , " AEL load process: calculated config file name '%s'. \n " , rfilename ) ;
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parse_tree = ael2_parse ( rfilename , & errs ) ;
ast_log ( LOG_NOTICE , " AEL load process: parsed config file name '%s'. \n " , rfilename ) ;
ael2_semantic_check ( parse_tree , & sem_err , & sem_warn , & sem_note ) ;
if ( errs = = 0 & & sem_err = = 0 ) {
ast_log ( LOG_NOTICE , " AEL load process: checked config file name '%s'. \n " , rfilename ) ;
ast_compile_ael2 ( & local_contexts , parse_tree ) ;
ast_log ( LOG_NOTICE , " AEL load process: compiled config file name '%s'. \n " , rfilename ) ;
ast_merge_contexts_and_delete ( & local_contexts , registrar ) ;
ast_log ( LOG_NOTICE , " AEL load process: merged config file name '%s'. \n " , rfilename ) ;
for ( con = ast_walk_contexts ( NULL ) ; con ; con = ast_walk_contexts ( con ) )
ast_context_verify_includes ( con ) ;
ast_log ( LOG_NOTICE , " AEL load process: verified config file name '%s'. \n " , rfilename ) ;
} else {
ast_log ( LOG_ERROR , " Sorry, but %d syntax errors and %d semantic errors were detected. It doesn't make sense to compile. \n " , errs , sem_err ) ;
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}
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destroy_pval ( parse_tree ) ; /* free up the memory */
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return 0 ;
}
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/* CLI interface */
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static int ael2_debug_read ( int fd , int argc , char * argv [ ] )
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{
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aeldebug | = DEBUG_READ ;
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return 0 ;
}
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static int ael2_debug_tokens ( int fd , int argc , char * argv [ ] )
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{
aeldebug | = DEBUG_TOKENS ;
return 0 ;
}
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static int ael2_debug_macros ( int fd , int argc , char * argv [ ] )
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{
aeldebug | = DEBUG_MACROS ;
return 0 ;
}
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static int ael2_debug_contexts ( int fd , int argc , char * argv [ ] )
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{
aeldebug | = DEBUG_CONTEXTS ;
return 0 ;
}
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static int ael2_no_debug ( int fd , int argc , char * argv [ ] )
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{
aeldebug = 0 ;
return 0 ;
}
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static int ael2_reload ( int fd , int argc , char * argv [ ] )
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{
ast_context_destroy ( NULL , registrar ) ;
return ( pbx_load_module ( ) ) ;
}
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static struct ast_cli_entry ael2_cli [ ] = {
{ { " ael2 " , " reload " , NULL } , ael2_reload , " Reload AEL configuration " } ,
{ { " ael2 " , " debug " , " read " , NULL } , ael2_debug_read , " Enable AEL read debug (does nothing) " } ,
{ { " ael2 " , " debug " , " tokens " , NULL } , ael2_debug_tokens , " Enable AEL tokens debug (does nothing) " } ,
{ { " ael2 " , " debug " , " macros " , NULL } , ael2_debug_macros , " Enable AEL macros debug (does nothing) " } ,
{ { " ael2 " , " debug " , " contexts " , NULL } , ael2_debug_contexts , " Enable AEL contexts debug (does nothing) " } ,
{ { " ael2 " , " no " , " debug " , NULL } , ael2_no_debug , " Disable AEL debug messages " } ,
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} ;
/*
* Standard module functions . . .
*/
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static int unload_module ( void * mod )
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{
ast_context_destroy ( NULL , registrar ) ;
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ast_cli_unregister_multiple ( ael2_cli , sizeof ( ael2_cli ) / sizeof ( ael2_cli [ 0 ] ) ) ;
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return 0 ;
}
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static int load_module ( void * mod )
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{
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ast_cli_register_multiple ( ael2_cli , sizeof ( ael2_cli ) / sizeof ( ael2_cli [ 0 ] ) ) ;
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return ( pbx_load_module ( ) ) ;
}
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static int reload ( void * mod )
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{
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ast_context_destroy ( NULL , registrar ) ;
return pbx_load_module ( ) ;
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}
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static const char * description ( void )
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{
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return dtext ;
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}
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static const char * key ( void )
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{
return ASTERISK_GPL_KEY ;
}
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STD_MOD ( MOD_1 | NO_USECOUNT , reload , NULL , NULL ) ;
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/* DESTROY the PVAL tree ============================================================================ */
void destroy_pval_item ( pval * item )
{
if ( item - > filename )
free ( item - > filename ) ;
switch ( item - > type ) {
case PV_WORD :
/* fields: item->u1.str == string associated with this (word). */
if ( item - > u1 . str )
free ( item - > u1 . str ) ;
if ( item - > u2 . arglist )
destroy_pval ( item - > u2 . arglist ) ;
break ;
case PV_MACRO :
/* fields: item->u1.str == name of macro
item - > u2 . arglist = = pval list of PV_WORD arguments of macro , as given by user
item - > u2 . arglist - > u1 . str = = argument
item - > u2 . arglist - > next = = next arg
item - > u3 . macro_statements = = pval list of statements in macro body .
*/
destroy_pval ( item - > u2 . arglist ) ;
if ( item - > u1 . str )
free ( item - > u1 . str ) ;
destroy_pval ( item - > u3 . macro_statements ) ;
break ;
case PV_CONTEXT :
/* fields: item->u1.str == name of context
item - > u2 . statements = = pval list of statements in context body
item - > u3 . abstract = = int 1 if an abstract keyword were present
*/
if ( item - > u1 . str )
free ( item - > u1 . str ) ;
destroy_pval ( item - > u2 . statements ) ;
break ;
case PV_MACRO_CALL :
/* fields: item->u1.str == name of macro to call
item - > u2 . arglist = = pval list of PV_WORD arguments of macro call , as given by user
item - > u2 . arglist - > u1 . str = = argument
item - > u2 . arglist - > next = = next arg
*/
if ( item - > u1 . str )
free ( item - > u1 . str ) ;
destroy_pval ( item - > u2 . arglist ) ;
break ;
case PV_APPLICATION_CALL :
/* fields: item->u1.str == name of application to call
item - > u2 . arglist = = pval list of PV_WORD arguments of macro call , as given by user
item - > u2 . arglist - > u1 . str = = argument
item - > u2 . arglist - > next = = next arg
*/
if ( item - > u1 . str )
free ( item - > u1 . str ) ;
destroy_pval ( item - > u2 . arglist ) ;
break ;
case PV_CASE :
/* fields: item->u1.str == value of case
item - > u2 . statements = = pval list of statements under the case
*/
if ( item - > u1 . str )
free ( item - > u1 . str ) ;
destroy_pval ( item - > u2 . statements ) ;
break ;
case PV_PATTERN :
/* fields: item->u1.str == value of case
item - > u2 . statements = = pval list of statements under the case
*/
if ( item - > u1 . str )
free ( item - > u1 . str ) ;
destroy_pval ( item - > u2 . statements ) ;
break ;
case PV_DEFAULT :
/* fields:
item - > u2 . statements = = pval list of statements under the case
*/
destroy_pval ( item - > u2 . statements ) ;
break ;
case PV_CATCH :
/* fields: item->u1.str == name of extension to catch
item - > u2 . statements = = pval list of statements in context body
*/
if ( item - > u1 . str )
free ( item - > u1 . str ) ;
destroy_pval ( item - > u2 . statements ) ;
break ;
case PV_SWITCHES :
/* fields: item->u1.list == pval list of PV_WORD elements, one per entry in the list
*/
destroy_pval ( item - > u1 . list ) ;
break ;
case PV_ESWITCHES :
/* fields: item->u1.list == pval list of PV_WORD elements, one per entry in the list
*/
destroy_pval ( item - > u1 . list ) ;
break ;
case PV_INCLUDES :
/* fields: item->u1.list == pval list of PV_WORD elements, one per entry in the list
item - > u2 . arglist = = pval list of 4 PV_WORD elements for time values
*/
destroy_pval ( item - > u1 . list ) ;
break ;
case PV_STATEMENTBLOCK :
/* fields: item->u1.list == pval list of statements in block, one per entry in the list
*/
destroy_pval ( item - > u1 . list ) ;
break ;
case PV_VARDEC :
/* fields: item->u1.str == variable name
item - > u2 . val = = variable value to assign
*/
if ( item - > u1 . str )
free ( item - > u1 . str ) ;
if ( item - > u2 . val )
free ( item - > u2 . val ) ;
break ;
case PV_GOTO :
/* fields: item->u1.list == pval list of PV_WORD target names, up to 3, in order as given by user.
item - > u1 . list - > u1 . str = = where the data on a PV_WORD will always be .
*/
destroy_pval ( item - > u1 . list ) ;
break ;
case PV_LABEL :
/* fields: item->u1.str == label name
*/
if ( item - > u1 . str )
free ( item - > u1 . str ) ;
break ;
case PV_FOR :
/* fields: item->u1.for_init == a string containing the initalizer
item - > u2 . for_test = = a string containing the loop test
item - > u3 . for_inc = = a string containing the loop increment
item - > u4 . for_statements = = a pval list of statements in the for ( )
*/
if ( item - > u1 . for_init )
free ( item - > u1 . for_init ) ;
if ( item - > u2 . for_test )
free ( item - > u2 . for_test ) ;
if ( item - > u3 . for_inc )
free ( item - > u3 . for_inc ) ;
destroy_pval ( item - > u4 . for_statements ) ;
break ;
case PV_WHILE :
/* fields: item->u1.str == the while conditional, as supplied by user
item - > u2 . statements = = a pval list of statements in the while ( )
*/
if ( item - > u1 . str )
free ( item - > u1 . str ) ;
destroy_pval ( item - > u2 . statements ) ;
break ;
case PV_BREAK :
/* fields: none
*/
break ;
case PV_RETURN :
/* fields: none
*/
break ;
case PV_CONTINUE :
/* fields: none
*/
break ;
case PV_IFTIME :
/* fields: item->u1.list == the 4 time values, in PV_WORD structs, linked list
item - > u2 . statements = = a pval list of statements in the if ( )
item - > u3 . else_statements = = a pval list of statements in the else
( could be zero )
*/
destroy_pval ( item - > u1 . list ) ;
destroy_pval ( item - > u2 . statements ) ;
if ( item - > u3 . else_statements ) {
destroy_pval ( item - > u3 . else_statements ) ;
}
break ;
case PV_RANDOM :
/* fields: item->u1.str == the random percentage, as supplied by user
item - > u2 . statements = = a pval list of statements in the true part ( )
item - > u3 . else_statements = = a pval list of statements in the else
( could be zero )
fall thru to If */
case PV_IF :
/* fields: item->u1.str == the if conditional, as supplied by user
item - > u2 . statements = = a pval list of statements in the if ( )
item - > u3 . else_statements = = a pval list of statements in the else
( could be zero )
*/
if ( item - > u1 . str )
free ( item - > u1 . str ) ;
destroy_pval ( item - > u2 . statements ) ;
if ( item - > u3 . else_statements ) {
destroy_pval ( item - > u3 . else_statements ) ;
}
break ;
case PV_SWITCH :
/* fields: item->u1.str == the switch expression
item - > u2 . statements = = a pval list of statements in the switch ,
( will be case statements , most likely ! )
*/
if ( item - > u1 . str )
free ( item - > u1 . str ) ;
destroy_pval ( item - > u2 . statements ) ;
break ;
case PV_EXTENSION :
/* fields: item->u1.str == the extension name, label, whatever it's called
item - > u2 . statements = = a pval list of statements in the extension
item - > u3 . hints = = a char * hint argument
item - > u4 . regexten = = an int boolean . non - zero says that regexten was specified
*/
if ( item - > u1 . str )
free ( item - > u1 . str ) ;
if ( item - > u3 . hints )
free ( item - > u3 . hints ) ;
destroy_pval ( item - > u2 . statements ) ;
break ;
case PV_IGNOREPAT :
/* fields: item->u1.str == the ignorepat data
*/
if ( item - > u1 . str )
free ( item - > u1 . str ) ;
break ;
case PV_GLOBALS :
/* fields: item->u1.statements == pval list of statements, usually vardecs
*/
destroy_pval ( item - > u1 . statements ) ;
break ;
}
free ( item ) ;
}
void destroy_pval ( pval * item )
{
pval * i , * nxt ;
for ( i = item ; i ; i = nxt ) {
nxt = i - > next ;
destroy_pval_item ( i ) ;
}
}
# ifdef AAL_ARGCHECK
static char * ael_funclist [ ] =
{
" AGENT " ,
" ARRAY " ,
" BASE64_DECODE " ,
" BASE64_ENCODE " ,
" CALLERID " ,
" CDR " ,
" CHANNEL " ,
" CHECKSIPDOMAIN " ,
" CHECK_MD5 " ,
" CURL " ,
" CUT " ,
" DB " ,
" DB_EXISTS " ,
" DUNDILOOKUP " ,
" ENUMLOOKUP " ,
" ENV " ,
" EVAL " ,
" EXISTS " ,
" FIELDQTY " ,
" FILTER " ,
" GROUP " ,
" GROUP_COUNT " ,
" GROUP_LIST " ,
" GROUP_MATCH_COUNT " ,
" IAXPEER " ,
" IF " ,
" IFTIME " ,
" ISNULL " ,
" KEYPADHASH " ,
" LANGUAGE " ,
" LEN " ,
" MATH " ,
" MD5 " ,
" MUSICCLASS " ,
" QUEUEAGENTCOUNT " ,
" QUEUE_MEMBER_COUNT " ,
" QUEUE_MEMBER_LIST " ,
" QUOTE " ,
" RAND " ,
" REGEX " ,
" SET " ,
" SHA1 " ,
" SIPCHANINFO " ,
" SIPPEER " ,
" SIP_HEADER " ,
" SORT " ,
" STAT " ,
" STRFTIME " ,
" STRPTIME " ,
" TIMEOUT " ,
" TXTCIDNAME " ,
" URIDECODE " ,
" URIENCODE " ,
" VMCOUNT "
} ;
int ael_is_funcname ( char * name )
{
int s , t ;
t = sizeof ( ael_funclist ) / sizeof ( char * ) ;
s = 0 ;
while ( ( s < t ) & & strcasecmp ( name , ael_funclist [ s ] ) )
s + + ;
if ( s < t )
return 1 ;
else
return 0 ;
}
# endif