wireshark/epan/diam_dict.l

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%option noyywrap
%option nounput
%option never-interactive
%option prefix="DiamDict"
%option caseless
%option stack
%option outfile="diam_dict.c"
%{
/*
** diam_dict.h
** Diameter Dictionary Import Routines
**
** $Id$
**
** (c) 2007, Luis E. Garcia Ontanon <luis.ontanon@gmail.com>
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Library General Public
** License as published by the Free Software Foundation; either
** version 2 of the License, or (at your option) any later version.
**
** This library is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** Library General Public License for more details.
**
** You should have received a copy of the GNU Library General Public
** License along with this library; if not, write to the
** Free Software Foundation, Inc., 59 Temple Place - Suite 330,
** Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <glib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#include <stdarg.h>
#include "emem.h"
#include "diam_dict.h"
typedef struct entity_t {
char* name;
char* file;
struct entity_t* next;
} entity_t;
#define ATTR_UINT(cont) do { D(("attr_uint " #cont "\t" )); attr_uint = &(cont); yy_push_state(GET_UINT_ATTR); } while(0)
#define ATTR_STR(cont) do { D(("attr_str " #cont "\t" )); attr_str = &(cont); yy_push_state(GET_ATTR); } while(0)
#define IGNORE() do { D(("ignore: %s\t",yytext)); yy_push_state(IGNORE_ATTR); } while(0)
#define D(args) ddict_debug args
#ifdef _WIN32
#define DDICT_DIRSEP "\\"
#else
#define DDICT_DIRSEP "/"
#endif
#define MAX_INCLUDE_DEPTH 10
#define YY_INPUT(buf,result,max_size) { result = current_yyinput(buf,max_size); }
#define ECHO
#define APPEND(txt,len) append_to_buffer(txt,len)
static entity_t ents;
static YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH];
static int include_stack_ptr = 0;
static size_t (*current_yyinput)(char*,size_t);
static const char* sys_dir;
static ddict_t* dict;
static ddict_application_t* appl;
static ddict_avp_t* avp;
static ddict_enum_t* enumitem;
static ddict_gavp_t* gavp;
static ddict_typedefn_t* typedefn;
static ddict_cmd_t* cmd;
static ddict_vendor_t* vnd;
static ddict_xmlpi_t* xmlpi;
static ddict_application_t* last_appl;
static ddict_avp_t* last_avp;
static ddict_enum_t* last_enumitem;
static ddict_gavp_t* last_gavp;
static ddict_typedefn_t* last_typedefn;
static ddict_cmd_t* last_cmd;
static ddict_vendor_t* last_vnd;
static ddict_xmlpi_t* last_xmlpi;
static char** attr_str;
static unsigned* attr_uint;
static void ddict_debug(const char* fmt, ...);
static void append_to_buffer(char* txt, int len);
static FILE* ddict_open(const char*, const char*);
%}
xmlpi_start [[:blank:] \r\n]*<\?[[:blank:] \r\n]*
xmlpi_end [[:blank:] \r\n]*\?>[[:blank:] \r\n]*
xmlpi_key_attr [[:blank:] \r\n]*key[[:blank:] \r\n]*=[[:blank:] \r\n]*\042
xmlpi_value_attr [[:blank:] \r\n]*value[[:blank:] \r\n]*=[[:blank:] \r\n]*\042
comment_start [[:blank:] \r\n]*<!--[[:blank:] \r\n]*
comment_end [[:blank:] \r\n]*-->[[:blank:] \r\n]*
open_tag [[:blank:] \r\n]*<[[:blank:] \r\n]*
end_tag [[:blank:] \r\n]*\/>[[:blank:] \r\n]*
close_tag [[:blank:] \r\n]*>[[:blank:] \r\n]*
open_closetag [[:blank:] \r\n]*<\/[[:blank:] \r\n]*
equals [[:blank:] \r\n]*=[[:blank:] \r\n]*
whitespace [[:blank:] \r\n]*
dquoted \042[^\042]*\042
doctype [[:blank:] \r\n]*<!DOCTYPE[^\[]*\[[[:blank:] \r\n]*
doctype_end [[:blank:] \r\n]*\][[:blank:] \r\n]*>[[:blank:] \r\n]*
start_entity [[:blank:] \r\n]*<\!ENTITY[[:blank:] \r\n]*
system [[:blank:] \r\n]*SYSTEM[[:blank:] \r\n]*\042
entityname [a-z0-9-]+
ndquot [^\042]+
end_entity \042[[:blank:] \r\n]*>[[:blank:] \r\n]*
entity \&[a-z0-9-]+;
any .
stop >
stop_end \/>
dquot \042
number [-]?[0-9]*
dictionary_start <dictionary>
dictionary_end <\/dictionary>
base_start <base[^>*]*>
base_end <\/base>
applictation_start <application
application_end<\/application>
command_start <command
command_end<\/command>
typedefn_start <typedefn
avp_start <avp
avp_end <\/avp>
type_start <type
enum_start <enum
grouped_start <grouped>
grouped_end <\/grouped>
vendor_start <vendor
gavp_start <gavp
ignored_attr [a-z0-9-]+=
ignored_quoted \042[^\042]*\042
name_attr name=\042
id_attr id=\042
code_attr code=\042
vendor_attr vendor-id=\042
typename_attr type-name=\042
typeparent_attr type-parent=\042
description_attr description=\042
%S LOADING LOADING_COMMENT LOADING_XMLPI ENTITY GET_SYSTEM GET_FILE END_ENTITY
%S GET_ATTR GET_UINT_ATTR END_ATTR OUTSIDE IN_DICT IN_APPL IN_AVP APPL_ATTRS IGNORE_ATTR
%S TYPE_ATTRS GAVP_ATTRS ENUM_ATTRS AVP_ATTRS VENDOR_ATTRS COMMAND_ATTRS TYPEDEFN_ATTRS
%S XMLPI_ATTRS XMLPI_GETKEY XMLPI_GETVAL XMLPI_ENDATTR
%%
<LOADING>{doctype} ;
<LOADING>{doctype_end} ;
<LOADING>{comment_start} BEGIN LOADING_COMMENT;
<LOADING_COMMENT>. ;
<LOADING_COMMENT>{comment_end} BEGIN LOADING;
<LOADING>{xmlpi_start} BEGIN LOADING_XMLPI;
<LOADING_XMLPI>{whitespace} ;
<LOADING_XMLPI>{entityname} {
xmlpi = g_malloc(sizeof(ddict_xmlpi_t));
xmlpi->name = g_strdup(yytext);
xmlpi->key = NULL;
xmlpi->value = NULL;
xmlpi->next = NULL;
if (!dict->xmlpis) last_xmlpi = dict->xmlpis = xmlpi;
else last_xmlpi = last_xmlpi->next = xmlpi;
BEGIN XMLPI_ATTRS;
}
<XMLPI_ATTRS>{xmlpi_key_attr} BEGIN XMLPI_GETKEY;
<XMLPI_GETKEY>{ndquot} { xmlpi->key = strdup(yytext); BEGIN XMLPI_ATTRS; }
<XMLPI_ATTRS>{xmlpi_value_attr} BEGIN XMLPI_GETVAL;
<XMLPI_GETVAL>{ndquot} { xmlpi->value = strdup(yytext); BEGIN XMLPI_ATTRS; }
<XMLPI_ATTRS>.
<XMLPI_ATTRS>{xmlpi_end} BEGIN LOADING;
<LOADING>{start_entity} BEGIN ENTITY;
<ENTITY>{entityname} {
entity_t* e = g_malloc(sizeof(entity_t));
e->name = strdup(yytext);
e->next = ents.next;
ents.next = e;
BEGIN GET_SYSTEM;
};
<GET_SYSTEM>{system} BEGIN GET_FILE;
<GET_FILE>{ndquot} {
ents.next->file = strdup(yytext);
BEGIN END_ENTITY;
}
<END_ENTITY>{end_entity} BEGIN LOADING;
<LOADING>{open_tag} APPEND("<",1);
<LOADING>{close_tag} APPEND(">",1);
<LOADING>{end_tag} APPEND("/>",2);
<LOADING>{open_closetag} APPEND("</",2);
<LOADING>{whitespace} APPEND(" ",1);
<LOADING>{dquoted} APPEND(yytext,yyleng);
<LOADING>{equals} APPEND("=",1);
<LOADING>{any} APPEND(yytext,yyleng);
<LOADING>{entity} {
char* p = ++yytext;
entity_t* e;
while(*p != ';') p++;
*p = '\0';
D(("looking for entity: %s\n",yytext));
if ( include_stack_ptr >= MAX_INCLUDE_DEPTH ) {
fprintf(stderr, "included files nested to deeply\n");
yyterminate();
}
include_stack[include_stack_ptr++] = YY_CURRENT_BUFFER;
for (e = ents.next; e; e = e->next) {
if (strcmp(e->name,yytext) == 0) {
yyin = ddict_open(sys_dir,e->file);
D(("entity: %s filename: %s yyin: %p\n",e->name,e->file,yyin));
if (!yyin) {
if (errno) {
fprintf(stderr, "Could not open file: '%s', error: %s\n", e->file, strerror(errno) );
yyterminate();
}
} else {
yy_switch_to_buffer(yy_create_buffer( yyin, YY_BUF_SIZE ) );
BEGIN LOADING;
}
break;
}
}
if (!e) {
fprintf(stderr, "Could not find entity: '%s'", e->name );
yyterminate();
}
}
<<EOF>> {
if (!yyin) yyterminate();
fclose(yyin);
D(("closing: %p %i\n",yyin,include_stack_ptr));
if ( --include_stack_ptr < 0 ) {
D(("DONE READING\n"));
yyin = NULL;
yyterminate();
} else {
yy_delete_buffer( YY_CURRENT_BUFFER );
yy_switch_to_buffer(include_stack[include_stack_ptr]);
BEGIN LOADING;
}
}
<GET_ATTR>{ndquot} {
*attr_str = strdup(yytext);
D(("%s\n",yytext));
attr_str = NULL;
BEGIN END_ATTR;
}
<GET_UINT_ATTR>{number} {
*attr_uint = strtoul(yytext,NULL,10);
D(("%s\n",yytext););
attr_uint = NULL;
BEGIN END_ATTR;
}
<END_ATTR>{dquot} { yy_pop_state(); }
<IGNORE_ATTR>. {
/* XXX: should go?*/
D(("{%s}",yytext));
}
<IGNORE_ATTR>{ignored_quoted} {
D(("=>%s<=\n",yytext));
yy_pop_state();
}
<OUTSIDE>{dictionary_start} {
D(("dictionary_start\n"));
BEGIN IN_DICT;
}
<IN_DICT>{base_start} {
D(("base_start\n"));
BEGIN IN_APPL;
}
<IN_DICT>{applictation_start} {
D(("applictation_start\n"));
appl = g_malloc(sizeof(ddict_application_t));
appl->name = NULL;
appl->code = 0;
appl->next = NULL;
if (!dict->applications) last_appl = dict->applications = appl;
else last_appl = last_appl->next = appl;
BEGIN APPL_ATTRS;
}
<APPL_ATTRS>{name_attr} { ATTR_STR(appl->name); }
<APPL_ATTRS>{id_attr} { ATTR_UINT(appl->code); }
<APPL_ATTRS>{stop} BEGIN IN_APPL;
<APPL_ATTRS>{stop_end} BEGIN IN_DICT;
<IN_APPL>{command_end} ;
<IN_APPL>{command_start} {
D(("command_start\n"));
cmd = g_malloc(sizeof(ddict_cmd_t));
cmd->name = NULL;
cmd->vendor = NULL;
cmd->code = 0;
cmd->next = NULL;
if (!dict->cmds) last_cmd = dict->cmds = cmd;
else last_cmd = last_cmd->next = cmd;
BEGIN COMMAND_ATTRS;
}
<COMMAND_ATTRS>{name_attr} { ATTR_STR(cmd->name); }
<COMMAND_ATTRS>{vendor_attr} { ATTR_STR(cmd->vendor); }
<COMMAND_ATTRS>{code_attr} { ATTR_UINT(cmd->code); }
<COMMAND_ATTRS>{stop} |
<COMMAND_ATTRS>{stop_end} { BEGIN IN_APPL; }
<IN_APPL>{vendor_start} {
D(("vendor_start\n"));
vnd = g_malloc(sizeof(ddict_vendor_t));
vnd->name = NULL;
vnd->code = 0;
vnd->next = NULL;
if (!dict->vendors) last_vnd = dict->vendors = vnd;
else last_vnd = last_vnd->next = vnd;
BEGIN VENDOR_ATTRS;
}
<VENDOR_ATTRS>{name_attr} { ATTR_STR(vnd->desc); }
<VENDOR_ATTRS>{vendor_attr} { ATTR_STR(vnd->name); }
<VENDOR_ATTRS>{code_attr} { ATTR_UINT(vnd->code); }
<VENDOR_ATTRS>{stop} |
<VENDOR_ATTRS>{stop_end} { BEGIN IN_APPL; }
<IN_APPL>{typedefn_start} {
D(("typedefn_start\n"));
typedefn = g_malloc(sizeof(ddict_typedefn_t));
typedefn->name = NULL;
typedefn->parent = NULL;
typedefn->next = NULL;
if (!dict->typedefns) last_typedefn = dict->typedefns = typedefn;
else last_typedefn = last_typedefn->next = typedefn;
BEGIN TYPEDEFN_ATTRS;
}
<TYPEDEFN_ATTRS>{typename_attr} { ATTR_STR(typedefn->name); }
<TYPEDEFN_ATTRS>{typeparent_attr} { ATTR_STR(typedefn->parent); }
<TYPEDEFN_ATTRS>{stop} |
<TYPEDEFN_ATTRS>{stop_end} { BEGIN IN_APPL; }
<IN_APPL>{avp_start} {
D(("avp_start\n"));
avp = g_malloc(sizeof(ddict_avp_t));
avp->name = NULL;
avp->description = NULL;
avp->vendor = NULL;
avp->code = 0;
avp->type = NULL;
avp->enums = NULL;
avp->gavps = NULL;
avp->next = NULL;
if (! dict->avps ) last_avp = dict->avps = avp;
else last_avp = last_avp->next = avp;
BEGIN AVP_ATTRS;
}
<AVP_ATTRS>{name_attr} { ATTR_STR(avp->name); }
<AVP_ATTRS>{description_attr} { ATTR_STR(avp->description); }
<AVP_ATTRS>{vendor_attr} { ATTR_STR(avp->vendor); }
<AVP_ATTRS>{code_attr} { ATTR_UINT(avp->code); }
<AVP_ATTRS>{stop} { BEGIN IN_AVP; }
<AVP_ATTRS>{stop_end} { BEGIN IN_APPL; }
<IN_AVP>{grouped_start} { avp->type = strdup("Grouped"); };
<IN_AVP>{grouped_end} ;
<IN_AVP>{type_start} { BEGIN TYPE_ATTRS; }
<TYPE_ATTRS>{typename_attr} { ATTR_STR(avp->type); }
<IN_AVP>{gavp_start} {
D(("gavp_start\n"));
gavp = g_malloc(sizeof(ddict_gavp_t));
gavp->name = NULL;
gavp->code = 0;
gavp->next = NULL;
if (!avp->gavps) last_gavp = avp->gavps = gavp;
else last_gavp = last_gavp->next = gavp;
BEGIN GAVP_ATTRS;
}
<GAVP_ATTRS>{name_attr} { ATTR_STR(gavp->name); }
<IN_AVP>{enum_start} {
D(("enum_start\n"));
enumitem = g_malloc(sizeof(ddict_enum_t));
enumitem->name = NULL;
enumitem->code = 0;
enumitem->next = NULL;
if (!avp->enums) last_enumitem = avp->enums = enumitem;
else last_enumitem = last_enumitem->next = enumitem;
BEGIN ENUM_ATTRS;
}
<ENUM_ATTRS>{name_attr} { ATTR_STR(enumitem->name); }
<ENUM_ATTRS>{code_attr} { ATTR_UINT(enumitem->code); }
<TYPE_ATTRS,GAVP_ATTRS,ENUM_ATTRS>{stop} { BEGIN IN_AVP; }
<TYPE_ATTRS,GAVP_ATTRS,ENUM_ATTRS>{stop_end} { BEGIN IN_AVP; }
<IN_AVP>{avp_end} { D(("avp_end")); BEGIN IN_APPL; }
<IN_APPL>{application_end} |
<IN_APPL>{base_end} {
BEGIN IN_DICT;
}
<IN_DICT>{dictionary_end} {
yyterminate();
}
<AVP_ATTRS,ENUM_ATTRS,GAVP_ATTRS,TYPE_ATTRS,TYPEDEFN_ATTRS,VENDOR_ATTRS,APPL_ATTRS,COMMAND_ATTRS>{ignored_attr} IGNORE();
<OUTSIDE>. ;
%%
static int debugging = 0;
static void ddict_debug(const char* fmt, ...) {
va_list ap;
va_start(ap, fmt);
if (debugging) vfprintf(stderr, fmt, ap);
va_end(ap);
fflush(stderr);
}
static char* strbuf = NULL;
static char* write_ptr = NULL;
static char* read_ptr = NULL;
static unsigned size_strbuf = 8192;
static unsigned len_strbuf = 0;
extern void ddict_unused(void);
void ddict_unused(void) {
yy_top_state();
}
static void append_to_buffer(char* txt, int len) {
if (strbuf == NULL) {
read_ptr = write_ptr = strbuf = g_malloc(size_strbuf);
}
if ( (len_strbuf + len) >= size_strbuf ) {
read_ptr = strbuf = g_realloc(strbuf,size_strbuf *= 2);
}
write_ptr = strbuf + len_strbuf;
strncpy(write_ptr,txt,len);
len_strbuf += len;
}
static size_t file_input(char* buf, size_t max) {
size_t read;
read = fread(buf,1,max,yyin);
if ( read == max ) {
return max;
} else if (read > 0) {
return read;
} else {
return YY_NULL;
}
}
static size_t string_input(char* buf, size_t max) {
if (read_ptr >= write_ptr ) {
return YY_NULL;
} else if ( read_ptr + max > write_ptr ) {
max = write_ptr - read_ptr;
}
memcpy(buf,read_ptr,max);
read_ptr += max;
return max;
}
static FILE* ddict_open(const char* system_directory, const char* filename) {
FILE* fh;
char* fname;
if (system_directory) {
int len = strlen(system_directory) + strlen(filename) + strlen(DDICT_DIRSEP) + 1;
fname = g_malloc(len);
g_snprintf(fname, len, "%s%s%s",system_directory,DDICT_DIRSEP,filename);
} else {
fname = strdup(filename);
}
fh = fopen(fname,"r");
D(("fname: %s fh: %p\n",fname,fh));
g_free(fname);
return fh;
}
ddict_t* ddict_scan(const char* system_directory, const char* filename, int dbg) {
debugging = dbg;
sys_dir = system_directory;
yyin = ddict_open(sys_dir,filename);
if (yyin == NULL) {
D(("unable to open %s\n", filename));
return NULL;
}
write_ptr = NULL;
read_ptr = NULL;
dict = g_malloc(sizeof(ddict_t));
dict->applications = NULL;
dict->cmds = NULL;
dict->vendors = NULL;
dict->typedefns = NULL;
dict->avps = NULL;
dict->xmlpis = NULL;
appl = NULL;
avp = NULL;
enumitem = NULL;
gavp = NULL;
typedefn = NULL;
cmd = NULL;
vnd = NULL;
xmlpi = NULL;
last_appl = NULL;
last_avp = NULL;
last_enumitem = NULL;
last_gavp = NULL;
last_typedefn = NULL;
last_cmd = NULL;
last_vnd = NULL;
last_xmlpi = NULL;
ents.next = NULL;
current_yyinput = file_input;
BEGIN LOADING;
yylex();
D(("\n---------------\n%s\n------- %d -------\n",strbuf,len_strbuf));
current_yyinput = string_input;
BEGIN OUTSIDE;
yylex();
g_free(strbuf);
strbuf = NULL;
size_strbuf = 8192;
return dict;
}
void ddict_free(ddict_t* d) {
ddict_application_t *p, *pn;
ddict_vendor_t *v, *vn;
ddict_cmd_t *c, *cn;
ddict_typedefn_t *t, *tn;
ddict_avp_t *a, *an;
#define FREE_NAMEANDOBJ(n) do { if(n->name) g_free(n->name); g_free(n); } while(0)
for (p = d->applications; p; p = pn ) {
pn = p->next;
FREE_NAMEANDOBJ(p);
}
for (v = d->vendors; v; v = vn) {
vn = v->next;
if (!v->desc) g_free(v->desc);
FREE_NAMEANDOBJ(v);
}
for (c = d->cmds; c; c = cn ) {
cn = c->next;
FREE_NAMEANDOBJ(c);
}
for (t = d->typedefns; t; t = tn) {
tn = t->next;
if (!t->parent) g_free(t->parent);
FREE_NAMEANDOBJ(t);
}
for (a = d->avps; a; a = an) {
ddict_gavp_t* g, *gn;
ddict_enum_t* e, *en;
an = a->next;
for (g = a->gavps; g; g = gn) {
gn = g->next;
FREE_NAMEANDOBJ(g);
}
for (e = a->enums; e; e = en) {
en = e->next;
FREE_NAMEANDOBJ(e);
}
if (!a->vendor) g_free(a->vendor);
if (!a->type) g_free(a->type);
if (!a->description) g_free(a->description);
FREE_NAMEANDOBJ(a);
}
g_free(d);
}
void ddict_print(FILE* fh, ddict_t* d) {
ddict_application_t* p;
ddict_vendor_t* v;
ddict_cmd_t* c;
ddict_typedefn_t* t;
ddict_avp_t* a;
for (p = d->applications; p; p = p->next) {
fprintf(fh,"Application: %s[%u]:\n",
p->name ? p->name : "-",
p->code);
}
for (v = d->vendors; v; v = v->next) {
fprintf(fh,"Vendor: %s[%u]:\n",
v->name ? v->name : "-",
v->code);
}
for (c = d->cmds; c; c = c->next) {
fprintf(fh,"Command: %s[%u] \n",
c->name ? c->name : "-",
c->code);
}
for (t = d->typedefns; t; t = t->next) {
fprintf(fh,"Type: %s -> %s \n",
t->name ? t->name : "-",
t->parent ? t->parent : "" );
}
for (a = d->avps; a; a = a->next) {
ddict_gavp_t* g;
ddict_enum_t* e;
fprintf(fh,"AVP: %s[%u:%s] %s %s\n",
a->name ? a->name : "-",
a->code,
a->vendor ? a->vendor : "None",
a->type ? a->type : "-",
a->description ? a->description : "");
for (g = a->gavps; g; g = g->next) {
fprintf(fh,"\tGAVP: %s\n",
g->name ? g->name : "-" );
}
for (e = a->enums; e; e = e->next) {
fprintf(fh,"\tEnum: %s[%u]\n",
e->name ? e->name : "-",
e->code);
}
}
}
#ifdef TEST_DIAM_DICT_STANDALONE
int main(int argc, char** argv) {
ddict_t* d;
char* dname = NULL;
char* fname;
int i = 1;
switch (argc) {
case 3:
dname = argv[i++];
case 2:
fname = argv[i];
break;
default:
fprintf(stderr,"%s: usage [dictionary_dir] dictionary_filename\n",argv[0]);
return 1;
}
d = ddict_scan(dname,fname,1);
ddict_print(stdout, d);
return 0;
}
#endif