dect
/
asterisk
Archived
13
0
Fork 0
Code Releases Activity

Version 0.1.1 from FTP 

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@142 f38db490-d61c-443f-a65b-d21fe96a405b
This commit is contained in:
markster 1999-12-19 22:38:55 +00:00
parent 8a317c03a2
commit a4430bca53
3 changed files with 753 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

120
asterisk.c
View File

@ -3,7 +3,7 @@
*
* Top level source file for asterisk
*
* Copyright (C) 1999, Adtran Inc. and Linux Support Services, LLC
* Copyright (C) 1999, Mark Spencer
*
* Mark Spencer <markster@linux-support.net>
*
@ -15,14 +15,23 @@
#include <stdlib.h>
#include <asterisk/logger.h>
#include <asterisk/options.h>
#include <asterisk/cli.h>
#include <stdio.h>
#include <signal.h>
#include <sched.h>
#include <pthread.h>
#include <readline/readline.h>
#include <readline/history.h>
#include "asterisk.h"
int option_verbose=0;
int option_debug=0;
int option_nofork=0;
int option_quiet=0;
int option_highpriority=0;
#define HIGH_PRIORITY 1
#define HIGH_PRIORITY_SCHED SCHED_RR
static void urg_handler(int num)
{
@ -33,31 +42,110 @@ static void urg_handler(int num)
return;
}
static int set_priority(int pri)
{
struct sched_param sched;
/* We set ourselves to a high priority, that we might pre-empt everything
else. If your PBX has heavy activity on it, this is a good thing. */
if (pri) {
sched.sched_priority = HIGH_PRIORITY;
if (sched_setscheduler(0, HIGH_PRIORITY_SCHED, &sched)) {
ast_log(LOG_WARNING, "Unable to set high priority\n");
return -1;
}
} else {
sched.sched_priority = 0;
if (sched_setscheduler(0, SCHED_OTHER, &sched)) {
ast_log(LOG_WARNING, "Unable to set normal priority\n");
return -1;
}
}
return 0;
}
static void quit_handler(int num)
{
static pthread_mutex_t quitlock = PTHREAD_MUTEX_INITIALIZER;
char filename[80] = "";
if (getenv("HOME"))
snprintf(filename, sizeof(filename), "%s/.asterisk_history", getenv("HOME"));
/* Quit only once */
pthread_mutex_lock(&quitlock);
/* Called on exit */
if (option_verbose)
ast_verbose("Asterisk ending (%d).\n", num);
else if (option_debug)
ast_log(LOG_DEBUG, "Asterisk ending (%d).\n", num);
if (strlen(filename))
write_history(filename);
exit(0);
}
static pthread_t consolethread = -1;
static void console_verboser(char *s, int pos, int replace, int complete)
{
/* Return to the beginning of the line */
if (!pos)
fprintf(stdout, "\r");
fprintf(stdout, s + pos);
if (complete)
/* Wake up a select()ing console */
pthread_kill(consolethread, SIGURG);
}
static void consolehandler(char *s)
{
/* Called when readline data is available */
if (s && strlen(s))
add_history(s);
if (s)
ast_cli_command(STDOUT_FILENO, s);
}
static char quit_help[] =
"Usage: quit\n"
" Exits Asterisk.\n";
static int handle_quit(int fd, int argc, char *argv[])
{
if (argc != 1)
return RESULT_SHOWUSAGE;
quit_handler(0);
return RESULT_SUCCESS;
}
#define ASTERISK_PROMPT "*CLI> "
static struct ast_cli_entry quit = { { "quit", NULL }, handle_quit, "Exit Asterisk", quit_help };
static char *cli_generator(char *text, int state)
{
return ast_cli_generator(rl_line_buffer, text, state);
}
int main(int argc, char *argv[])
{
char c;
fd_set rfds;
int res;
char filename[80] = "";
if (getenv("HOME"))
snprintf(filename, sizeof(filename), "%s/.asterisk_history", getenv("HOME"));
/* Check if we're root */
if (geteuid()) {
ast_log(LOG_ERROR, "Must be run as root\n");
exit(1);
}
/* Check for options */
while((c=getopt(argc, argv, "dvq")) != EOF) {
while((c=getopt(argc, argv, "dvqp")) != EOF) {
switch(c) {
case 'd':
option_debug++;
option_nofork++;
option_verbose++;
break;
case 'p':
option_highpriority++;
break;
case 'v':
option_verbose++;
@ -71,7 +159,7 @@ int main(int argc, char *argv[])
}
/* Print a welcome message if desired */
if (option_verbose) {
ast_verbose( "Asterisk, Copyright (C) 1999 Adtran, Inc. and Linux Support Services, LLC\n");
ast_verbose( "Asterisk, Copyright (C) 1999 Mark Spencer\n");
ast_verbose( "Written by Mark Spencer <markster@linux-support.net>\n");
ast_verbose( "=========================================================================\n");
}
@ -85,10 +173,32 @@ int main(int argc, char *argv[])
exit(1);
if (load_modules())
exit(1);
if (set_priority(option_highpriority))
exit(1);
/* We might have the option of showing a console, but for now just
do nothing... */
/* Console stuff now... */
/* Register our quit function */
ast_cli_register(&quit);
consolethread = pthread_self();
ast_register_verbose(console_verboser);
if (option_verbose)
ast_verbose( "Asterisk Ready.\n");
select(0,NULL,NULL,NULL,NULL);
if (strlen(filename))
read_history(filename);
rl_callback_handler_install(ASTERISK_PROMPT, consolehandler);
rl_completion_entry_function = (Function *)cli_generator;
for(;;) {
FD_ZERO(&rfds);
FD_SET(STDIN_FILENO, &rfds);
res = select(STDIN_FILENO + 1, &rfds, NULL, NULL, NULL);
if (res > 0) {
rl_callback_read_char();
} else if (res < 1) {
rl_forced_update_display();
}
}
return 0;
}

572
cli.c Executable file
View File

@ -0,0 +1,572 @@
/*
* Asterisk -- A telephony toolkit for Linux.
*
* Standard Command Line Interface
*
* Copyright (C) 1999, Mark Spencer
*
* Mark Spencer <markster@linux-support.net>
*
* This program is free software, distributed under the terms of
* the GNU General Public License
*/
#include <unistd.h>
#include <stdlib.h>
#include <asterisk/logger.h>
#include <asterisk/options.h>
#include <asterisk/cli.h>
#include <asterisk/module.h>
#include <asterisk/channel.h>
#include <sys/signal.h>
#include <stdio.h>
#include <signal.h>
#include <string.h>
#include <pthread.h>
/* For rl_filename_completion */
#include <readline/readline.h>
/* For module directory */
#include "asterisk.h"
void ast_cli(int fd, char *fmt, ...)
{
char stuff[4096];
va_list ap;
va_start(ap, fmt);
vsnprintf(stuff, sizeof(stuff), fmt, ap);
va_end(ap);
write(fd, stuff, strlen(stuff));
}
pthread_mutex_t clilock = PTHREAD_MUTEX_INITIALIZER;
struct ast_cli_entry *helpers = NULL;
static char load_help[] =
"Usage: load <module name>\n"
" Loads the specified module into Asterisk.\n";
static char unload_help[] =
"Usage: unload [-f|-h] <module name>\n"
" Unloads the specified module from Asterisk. The -f\n"
" option causes the module to be unloaded even if it is\n"
" in use (may cause a crash) and the -h module causes the\n"
" module to be unloaded even if the module says it cannot, \n"
" which almost always will cause a crash.\n";
static char help_help[] =
"Usage: help [topic]\n"
" When called with a topic as an argument, displays usage\n"
" information on the given command. If called without a\n"
" topic, it provides a list of commands.\n";
static char chanlist_help[] =
"Usage: show channels\n"
" Lists currently defined channels and some information about\n"
" them.\n";
static int handle_load(int fd, int argc, char *argv[])
{
if (argc != 2)
return RESULT_SHOWUSAGE;
if (ast_load_resource(argv[1])) {
ast_cli(fd, "Unable to load module %s\n", argv[1]);
return RESULT_FAILURE;
}
return RESULT_SUCCESS;
}
static int handle_unload(int fd, int argc, char *argv[])
{
int x;
int force=AST_FORCE_SOFT;
if (argc < 2)
return RESULT_SHOWUSAGE;
for (x=1;x<argc;x++) {
if (argv[x][0] == '-') {
switch(argv[x][1]) {
case 'f':
force = AST_FORCE_FIRM;
break;
case 'h':
force = AST_FORCE_HARD;
break;
default:
return RESULT_SHOWUSAGE;
}
} else if (x != argc - 1)
return RESULT_SHOWUSAGE;
else if (ast_unload_resource(argv[x], force)) {
ast_cli(fd, "Unable to unload resource %s\n", argv[x]);
return RESULT_FAILURE;
}
}
return RESULT_SUCCESS;
}
#define MODLIST_FORMAT "%-20s %-40.40s %-10d\n"
#define MODLIST_FORMAT2 "%-20s %-40.40s %-10s\n"
static pthread_mutex_t climodentrylock = PTHREAD_MUTEX_INITIALIZER;
static int climodentryfd = -1;
static int modlist_modentry(char *module, char *description, int usecnt)
{
ast_cli(climodentryfd, MODLIST_FORMAT, module, description, usecnt);
return 0;
}
static char modlist_help[] =
"Usage: show modules\n"
" Shows Asterisk modules currently in use, and usage "
"statistics.\n";
static int handle_modlist(int fd, int argc, char *argv[])
{
if (argc != 2)
return RESULT_SHOWUSAGE;
pthread_mutex_lock(&climodentrylock);
climodentryfd = fd;
ast_cli(fd, MODLIST_FORMAT2, "Module", "Description", "Use Count");
ast_update_module_list(modlist_modentry);
climodentryfd = -1;
pthread_mutex_unlock(&climodentrylock);
return RESULT_SUCCESS;
}
static int handle_chanlist(int fd, int argc, char *argv[])
{
#define FORMAT_STRING "%15s (%-10s %-12s %-4d) %-12s %-15s\n"
#define FORMAT_STRING2 "%15s (%-10s %-12s %-4s) %-12s %-15s\n"
struct ast_channel *c=NULL;
if (argc != 2)
return RESULT_SHOWUSAGE;
c = ast_channel_walk(NULL);
ast_cli(fd, FORMAT_STRING2, "Channel", "Context", "Extension", "Pri", "Appl.", "Data");
while(c) {
ast_cli(fd, FORMAT_STRING, c->name, c->context, c->exten, c->priority,
c->appl ? c->appl : "(None)", c->data ? ( strlen(c->data) ? c->data : "(Empty)" ): "(None)");
c = ast_channel_walk(c);
}
return RESULT_SUCCESS;
}
static char showchan_help[] =
"Usage: show channel <channel>\n"
" Shows lots of information about the specified channel.\n";
static int handle_showchan(int fd, int argc, char *argv[])
{
struct ast_channel *c=NULL;
if (argc != 3)
return RESULT_SHOWUSAGE;
c = ast_channel_walk(NULL);
while(c) {
if (!strcasecmp(c->name, argv[2])) {
ast_cli(fd,
" -- General --\n"
" Name: %s\n"
" Type: %s\n"
" Translator: %s\n"
" Master: %s\n"
" Caller ID: %s\n"
" DNID Digits: %s\n"
" State: %d\n"
" Rings: %d\n"
" Format: %d\n"
"File Descriptor: %d\n"
" -- PBX --\n"
" Context: %s\n"
" Extension: %s\n"
" Priority: %d\n"
" Application: %s\n"
" Data: %s\n"
" Stack: %d\n"
" Blocking in: %s\n",
c->name, c->type, (c->trans ? c->trans->name : "(N/A)"),
(c->master ? c->master->name : "(N/A)"), (c->callerid ? c->callerid : "(N/A)"),
(c->dnid ? c->dnid : "(N/A)" ), c->state, c->rings, c->format,
c->fd, c->context, c->exten, c->priority, ( c->appl ? c->appl : "(N/A)" ),
( c-> data ? (strlen(c->data) ? c->data : "(Empty)") : "(None)"),
c->stack, (c->blocking ? c->blockproc : "(Not Blocking)"));
break;
}
c = ast_channel_walk(c);
}
if (!c)
ast_cli(fd, "%s is not a known channel\n", argv[2]);
return RESULT_SUCCESS;
}
static char *complete_ch(char *line, char *word, int pos, int state)
{
struct ast_channel *c;
int which=0;
c = ast_channel_walk(NULL);
while(c) {
if (++which > state)
break;
c = ast_channel_walk(c);
}
return c ? strdup(c->name) : NULL;
}
static char *complete_fn(char *line, char *word, int pos, int state)
{
char *c;
char filename[256];
if (pos != 1)
return NULL;
if (word[0] == '/')
strncpy(filename, word, sizeof(filename));
else
snprintf(filename, sizeof(filename), "%s/%s", AST_MODULE_DIR, word);
c = filename_completion_function(filename, state);
if (c && word[0] != '/')
c += (strlen(AST_MODULE_DIR) + 1);
return c ? strdup(c) : c;
}
static int handle_help(int fd, int argc, char *argv[]);
static struct ast_cli_entry builtins[] = {
/* Keep alphabetized */
{ { "show" , "channels", NULL }, handle_chanlist, "Display information on channels", chanlist_help },
{ { "help", NULL }, handle_help, "Display help list, or specific help on a command", help_help },
{ { "load", NULL }, handle_load, "Load a dynamic module by name", load_help, complete_fn },
{ { "show", "modules", NULL }, handle_modlist, "List modules and info", modlist_help },
{ { "show", "channel", NULL }, handle_showchan, "Display information on a specific channel", showchan_help, complete_ch },
{ { "unload", NULL }, handle_unload, "Unload a dynamic module by name", unload_help, complete_fn },
{ { NULL }, NULL, NULL, NULL }
};
static struct ast_cli_entry *find_cli(char *cmds[], int exact)
{
int x;
int y;
int match;
struct ast_cli_entry *e=NULL;
for (x=0;builtins[x].cmda[0];x++) {
/* start optimistic */
match = 1;
for (y=0;match && cmds[y]; y++) {
/* If there are no more words in the candidate command, then we're
there. */
if (!builtins[x].cmda[y] && !exact)
break;
/* If there are no more words in the command (and we're looking for
an exact match) or there is a difference between the two words,
then this is not a match */
if (!builtins[x].cmda[y] || strcasecmp(builtins[x].cmda[y], cmds[y]))
match = 0;
}
/* If more words are needed to complete the command then this is not
a candidate (unless we're looking for a really inexact answer */
if ((exact > -1) && builtins[x].cmda[y])
match = 0;
if (match)
return &builtins[x];
}
for (e=helpers;e;e=e->next) {
match = 1;
for (y=0;match && e->cmda[y]; y++) {
if (!e->cmda[y] && !exact)
break;
if (!e->cmda[y] || strcasecmp(e->cmda[y], cmds[y]))
match = 0;
}
if ((exact > -1) && e->cmda[y])
match = 0;
if (match)
break;
}
return e;
}
static void join(char *s, int len, char *w[])
{
int x;
/* Join words into a string */
strcpy(s, "");
for (x=0;w[x];x++) {
if (x)
strncat(s, " ", len - strlen(s));
strncat(s, w[x], len - strlen(s));
}
}
static char *find_best(char *argv[])
{
static char cmdline[80];
int x;
/* See how close we get, then print the */
char *myargv[AST_MAX_CMD_LEN];
for (x=0;x<AST_MAX_CMD_LEN;x++)
myargv[x]=NULL;
for (x=0;argv[x];x++) {
myargv[x] = argv[x];
if (!find_cli(myargv, -1))
break;
}
join(cmdline, sizeof(cmdline), myargv);
return cmdline;
}
int ast_cli_register(struct ast_cli_entry *e)
{
struct ast_cli_entry *cur, *l=NULL;
char fulle[80], fulltst[80];
pthread_mutex_lock(&clilock);
join(fulle, sizeof(fulle), e->cmda);
if (find_cli(e->cmda, -1)) {
ast_log(LOG_WARNING, "Command '%s' already registered (or something close enough)\n", fulle);
pthread_mutex_unlock(&clilock);
return -1;
}
cur = helpers;
while(cur) {
join(fulltst, sizeof(fulltst), cur->cmda);
if (strcmp(fulle, fulltst) > 0) {
/* Put it here */
e->next = cur->next;
cur->next = e;
break;
}
l = cur;
cur = cur->next;
}
if (!cur) {
if (l)
l->next = e;
else
helpers = e;
e->next = NULL;
}
pthread_mutex_unlock(&clilock);
return 0;
}
static int help_workhorse(int fd, char *match[])
{
char fullcmd1[80];
char fullcmd2[80];
char matchstr[80];
char *fullcmd;
struct ast_cli_entry *e, *e1, *e2;
e1 = builtins;
e2 = helpers;
if (match)
join(matchstr, sizeof(matchstr), match);
while(e1->cmda[0] || e2) {
if (e2)
join(fullcmd2, sizeof(fullcmd2), e2->cmda);
if (e1->cmda[0])
join(fullcmd1, sizeof(fullcmd1), e1->cmda);
if (!e1->cmda ||
(e2 && (strcmp(fullcmd2, fullcmd1) < 0))) {
/* Use e2 */
e = e2;
fullcmd = fullcmd2;
/* Increment by going to next */
e2 = e2->next;
} else {
/* Use e1 */
e = e1;
fullcmd = fullcmd1;
e1++;
}
if (match) {
if (strncasecmp(matchstr, fullcmd, strlen(matchstr))) {
continue;
}
}
ast_cli(fd, "%15s %s\n", fullcmd, e->summary);
}
return 0;
}
static int handle_help(int fd, int argc, char *argv[]) {
struct ast_cli_entry *e;
char fullcmd[80];
if ((argc < 1))
return RESULT_SHOWUSAGE;
if (argc > 1) {
e = find_cli(argv + 1, 1);
if (e)
ast_cli(fd, e->usage);
else {
if (find_cli(argv + 1, -1)) {
return help_workhorse(fd, argv + 1);
} else {
join(fullcmd, sizeof(fullcmd), argv+1);
ast_cli(fd, "No such command '%s'.\n", fullcmd);
}
}
} else {
return help_workhorse(fd, NULL);
}
return RESULT_SUCCESS;
}
static char *parse_args(char *s, int *max, char *argv[])
{
char *dup, *cur;
int x=0;
int quoted=0;
int escaped=0;
int whitespace=1;
dup = strdup(s);
if (dup) {
cur = dup;
while(*s) {
switch(*s) {
case '"':
/* If it's escaped, put a literal quote */
if (escaped)
goto normal;
else
quoted = !quoted;
escaped = 0;
break;
case ' ':
case '\t':
if (!quoted && !escaped) {
/* If we're not quoted, mark this as whitespace, and
end the previous argument */
whitespace = 1;
*(cur++) = '\0';
} else
/* Otherwise, just treat it as anything else */
goto normal;
break;
case '\\':
/* If we're escaped, print a literal, otherwise enable escaping */
if (escaped) {
goto normal;
} else {
escaped=1;
}
break;
default:
normal:
if (whitespace) {
if (x >= AST_MAX_ARGS -1) {
ast_log(LOG_WARNING, "Too many arguments, truncating\n");
break;
}
/* Coming off of whitespace, start the next argument */
argv[x++] = cur;
whitespace=0;
}
*(cur++) = *s;
escaped=0;
}
s++;
}
/* Null terminate */
*(cur++) = '\0';
argv[x] = NULL;
*max = x;
}
return dup;
}
char *ast_cli_generator(char *text, char *word, int state)
{
char *argv[AST_MAX_ARGS];
struct ast_cli_entry *e, *e1, *e2;
int x;
int matchnum=0;
char *dup, *res;
char fullcmd1[80];
char fullcmd2[80];
char matchstr[80];
char *fullcmd;
if ((dup = parse_args(text, &x, argv))) {
join(matchstr, sizeof(matchstr), argv);
pthread_mutex_lock(&clilock);
e1 = builtins;
e2 = helpers;
while(e1->cmda[0] || e2) {
if (e2)
join(fullcmd2, sizeof(fullcmd2), e2->cmda);
if (e1->cmda[0])
join(fullcmd1, sizeof(fullcmd1), e1->cmda);
if (!e1->cmda ||
(e2 && (strcmp(fullcmd2, fullcmd1) < 0))) {
/* Use e2 */
e = e2;
fullcmd = fullcmd2;
/* Increment by going to next */
e2 = e2->next;
} else {
/* Use e1 */
e = e1;
fullcmd = fullcmd1;
e1++;
}
if (!strncasecmp(matchstr, fullcmd, strlen(matchstr))) {
/* We contain the first part of one or more commands */
matchnum++;
if (matchnum > state) {
/* Now, what we're supposed to return is the next word... */
if (strlen(word)) {
res = e->cmda[x-1];
} else {
res = e->cmda[x];
}
if (res) {
pthread_mutex_unlock(&clilock);
return res ? strdup(res) : NULL;
}
}
}
if (e->generator && !strncasecmp(matchstr, fullcmd, strlen(fullcmd))) {
/* We have a command in its entirity within us -- theoretically only one
command can have this occur */
fullcmd = e->generator(text, word, (strlen(word) ? (x - 1) : (x)), state);
pthread_mutex_unlock(&clilock);
return fullcmd;
}
}
pthread_mutex_unlock(&clilock);
free(dup);
}
return NULL;
}
int ast_cli_command(int fd, char *s)
{
char *argv[AST_MAX_ARGS];
struct ast_cli_entry *e;
int x;
char *dup;
x = AST_MAX_ARGS;
if ((dup = parse_args(s, &x, argv))) {
/* We need at least one entry, or ignore */
if (x > 0) {
pthread_mutex_lock(&clilock);
e = find_cli(argv, 0);
if (e) {
switch(e->handler(fd, x, argv)) {
case RESULT_SHOWUSAGE:
ast_cli(fd, e->usage);
break;
default:
}
} else
ast_cli(fd, "No such command '%s'\n", find_best(argv));
pthread_mutex_unlock(&clilock);
}
free(dup);
} else {
ast_log(LOG_WARNING, "Out of memory\n");
return -1;
}
return 0;
}

66
include/asterisk/cli.h Executable file
View File

@ -0,0 +1,66 @@
/*
* Asterisk -- A telephony toolkit for Linux.
*
* Standard Command Line Interface
*
* Copyright (C) 1999, Mark Spencer
*
* Mark Spencer <markster@linux-support.net>
*
* This program is free software, distributed under the terms of
* the GNU General Public License
*/
#ifndef _ASTERISK_CLI_H
#define _ASTERISK_CLI_H
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
#include <stdarg.h>
extern void ast_cli(int fd, char *fmt, ...);
#define RESULT_SUCCESS 0
#define RESULT_SHOWUSAGE 1
#define RESULT_FAILURE 2
#define AST_MAX_CMD_LEN 16
/* A command line entry */
#define AST_MAX_ARGS 64
struct ast_cli_entry {
/* Null terminated list of the words of the command */
char *cmda[AST_MAX_CMD_LEN];
/* Handler for the command (fd for output, # of arguments, argument list).
Returns RESULT_SHOWUSAGE for improper arguments */
int (*handler)(int fd, int argc, char *argv[]);
/* Summary of the command (< 60 characters) */
char *summary;
/* Detailed usage information */
char *usage;
/* Generate a list of possible completions for a given word */
char *(*generator)(char *line, char *word, int pos, int state);
/* For linking */
struct ast_cli_entry *next;
};
/* Interpret a command s, sending output to fd */
extern int ast_cli_command(int fd, char *s);
/* Register your own command */
extern int ast_cli_register(struct ast_cli_entry *e);
/* Unregister your own command */
extern int ast_cli_unregister(struct ast_cli_entry *e);
/* Useful for readline, that's about it */
extern char *ast_cli_generator(char *, char *, int);
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
#endif