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d5ee95eae633b7832fee5ec67a98c40bceba934b
asterisk/utils/conf2ael.c
David Vossel dcfe69ec64 fixes some memory leaks and redundant conditions 
(closes issue #15269)
Reported by: contactmayankjain
Patches:
      patch.txt uploaded by contactmayankjain (license 740)
      memory_leak_stuff.trunk.diff uploaded by dvossel (license 671)
Tested by: contactmayankjain, dvossel




git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@201678 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2009-06-18 16:37:42 +00:00

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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2007, Digium, Inc.
*
* Steve Murphy <murf@digium.com>
*
* 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.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*
*
* Reverse compile extensions.conf code into prototype AEL code
*
*/
/*** MODULEINFO
<depend>res_ael_share</depend>
***/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/paths.h" /* CONFIG_DIR */
#include <locale.h>
#include <ctype.h>
#if !defined(SOLARIS) && !defined(__CYGWIN__)
#include <err.h>
#endif
#include <regex.h>
#include "asterisk.h"
#include "asterisk/pbx.h"
#include "asterisk/ast_expr.h"
#include "asterisk/channel.h"
#include "asterisk/chanvars.h"
#include "asterisk/module.h"
#include "asterisk/app.h"
#include "asterisk/config.h"
#include "asterisk/options.h"
#include "asterisk/callerid.h"
#include "asterisk/lock.h"
#include "asterisk/hashtab.h"
#include "asterisk/ael_structs.h"
#include "asterisk/devicestate.h"
#include "asterisk/stringfields.h"
#include "asterisk/pval.h"
#include "asterisk/extconf.h"
struct ast_flags ast_compat = { 7 };
const char *ast_config_AST_CONFIG_DIR = "/etc/asterisk"; /* placeholder */
void get_start_stop(unsigned int *word, int bitsperword, int totalbits, int *start, int *end);
int all_bits_set(unsigned int *word, int bitsperword, int totalbits);
extern char *days[];
extern char *months[];
char *config = "extensions.conf";
/*
static char *registrar = "conf2ael";
static char userscontext[AST_MAX_EXTENSION] = "default";
static int static_config = 0;
static int write_protect_config = 1;
static int autofallthrough_config = 0;
static int clearglobalvars_config = 0;
char ast_config_AST_SYSTEM_NAME[20] = ""; */
/*! Go no deeper than this through includes (not counting loops) */
#define AST_PBX_MAX_STACK 128
/* static AST_RWLIST_HEAD_STATIC(acf_root, ast_custom_function); */
//extern char ast_config_AST_CONFIG_DIR[PATH_MAX];
int option_debug = 0;
int option_verbose = 0;
void ast_register_file_version(const char *file, const char *version);
void ast_register_file_version(const char *file, const char *version)
{
}
void ast_unregister_file_version(const char *file);
void ast_unregister_file_version(const char *file)
{
}
#if !defined(LOW_MEMORY)
int ast_add_profile(const char *x, uint64_t scale) { return 0;}
#endif
/* Our own version of ast_log, since the expr parser uses it. -- stolen from utils/check_expr.c */
void ast_log(int level, const char *file, int line, const char *function, const char *fmt, ...) __attribute__((format(printf,5,6)));
void ast_log(int level, const char *file, int line, const char *function, const char *fmt, ...)
{
va_list vars;
va_start(vars,fmt);
printf("LOG: lev:%d file:%s line:%d func: %s ",
level, file, line, function);
vprintf(fmt, vars);
fflush(stdout);
va_end(vars);
}
/* stolen from pbx.c */
struct ast_context;
struct ast_app;
#ifdef LOW_MEMORY
#define EXT_DATA_SIZE 256
#else
#define EXT_DATA_SIZE 8192
#endif
#define SWITCH_DATA_LENGTH 256
#define VAR_BUF_SIZE 4096
#define VAR_NORMAL 1
#define VAR_SOFTTRAN 2
#define VAR_HARDTRAN 3
#define BACKGROUND_SKIP (1 << 0)
#define BACKGROUND_NOANSWER (1 << 1)
#define BACKGROUND_MATCHEXTEN (1 << 2)
#define BACKGROUND_PLAYBACK (1 << 3)
/*!
\brief ast_exten: An extension
The dialplan is saved as a linked list with each context
having it's own linked list of extensions - one item per
priority.
*/
struct ast_exten {
char *exten; /*!< Extension name */
int matchcid; /*!< Match caller id ? */
const char *cidmatch; /*!< Caller id to match for this extension */
int priority; /*!< Priority */
const char *label; /*!< Label */
struct ast_context *parent; /*!< The context this extension belongs to */
const char *app; /*!< Application to execute */
struct ast_app *cached_app; /*!< Cached location of application */
void *data; /*!< Data to use (arguments) */
void (*datad)(void *); /*!< Data destructor */
struct ast_exten *peer; /*!< Next higher priority with our extension */
const char *registrar; /*!< Registrar */
struct ast_exten *next; /*!< Extension with a greater ID */
char stuff[0];
};
/*! \brief ast_include: include= support in extensions.conf */
struct ast_include {
const char *name;
const char *rname; /*!< Context to include */
const char *registrar; /*!< Registrar */
int hastime; /*!< If time construct exists */
struct ast_timing timing; /*!< time construct */
struct ast_include *next; /*!< Link them together */
char stuff[0];
};
/*! \brief ast_sw: Switch statement in extensions.conf */
struct ast_sw {
char *name;
const char *registrar; /*!< Registrar */
char *data; /*!< Data load */
int eval;
AST_LIST_ENTRY(ast_sw) list;
char *tmpdata;
char stuff[0];
};
/*! \brief ast_ignorepat: Ignore patterns in dial plan */
struct ast_ignorepat {
const char *registrar;
struct ast_ignorepat *next;
const char pattern[0];
};
/*! \brief ast_context: An extension context */
struct ast_context {
ast_rwlock_t lock; /*!< A lock to prevent multiple threads from clobbering the context */
struct ast_exten *root; /*!< The root of the list of extensions */
struct ast_context *next; /*!< Link them together */
struct ast_include *includes; /*!< Include other contexts */
struct ast_ignorepat *ignorepats; /*!< Patterns for which to continue playing dialtone */
const char *registrar; /*!< Registrar */
AST_LIST_HEAD_NOLOCK(, ast_sw) alts; /*!< Alternative switches */
ast_mutex_t macrolock; /*!< A lock to implement "exclusive" macros - held whilst a call is executing in the macro */
char name[0]; /*!< Name of the context */
};
/*! \brief ast_app: A registered application */
struct ast_app {
int (*execute)(struct ast_channel *chan, void *data);
const char *synopsis; /*!< Synopsis text for 'show applications' */
const char *description; /*!< Description (help text) for 'show application &lt;name&gt;' */
AST_RWLIST_ENTRY(ast_app) list; /*!< Next app in list */
struct module *module; /*!< Module this app belongs to */
char name[0]; /*!< Name of the application */
};
/*! \brief ast_state_cb: An extension state notify register item */
struct ast_state_cb {
int id;
void *data;
ast_state_cb_type callback;
struct ast_state_cb *next;
};
/*! \brief Structure for dial plan hints
\note Hints are pointers from an extension in the dialplan to one or
more devices (tech/name)
- See \ref AstExtState
*/
struct ast_hint {
struct ast_exten *exten; /*!< Extension */
int laststate; /*!< Last known state */
struct ast_state_cb *callbacks; /*!< Callback list for this extension */
AST_RWLIST_ENTRY(ast_hint) list;/*!< Pointer to next hint in list */
};
struct store_hint {
char *context;
char *exten;
struct ast_state_cb *callbacks;
int laststate;
AST_LIST_ENTRY(store_hint) list;
char data[1];
};
AST_LIST_HEAD(store_hints, store_hint);
static const struct cfextension_states {
int extension_state;
const char * const text;
} extension_states[] = {
{ AST_EXTENSION_NOT_INUSE, "Idle" },
{ AST_EXTENSION_INUSE, "InUse" },
{ AST_EXTENSION_BUSY, "Busy" },
{ AST_EXTENSION_UNAVAILABLE, "Unavailable" },
{ AST_EXTENSION_RINGING, "Ringing" },
{ AST_EXTENSION_INUSE | AST_EXTENSION_RINGING, "InUse&Ringing" },
{ AST_EXTENSION_ONHOLD, "Hold" },
{ AST_EXTENSION_INUSE | AST_EXTENSION_ONHOLD, "InUse&Hold" }
};
#define STATUS_NO_CONTEXT 1
#define STATUS_NO_EXTENSION 2
#define STATUS_NO_PRIORITY 3
#define STATUS_NO_LABEL 4
#define STATUS_SUCCESS 5
extern struct ast_context *local_contexts;
extern struct ast_context *contexts;
struct ast_custom_function *ast_custom_function_find(const char *name);
struct ast_custom_function *ast_custom_function_find(const char *name)
{
return 0; /* in "standalone" mode, functions are just not avail */
}
struct profile_entry {
const char *name;
uint64_t scale; /* if non-zero, values are scaled by this */
int64_t mark;
int64_t value;
int64_t events;
};
struct profile_data {
int entries;
int max_size;
struct profile_entry e[0];
};
static int bit_at(unsigned int *word, int bitsperword, int bitnum)
{
return word[bitnum/bitsperword] & (1 << (bitnum % bitsperword));
}
void get_start_stop(unsigned int *word, int bitsperword, int totalbits, int *start, int *end)
{
int i;
int thisbit, thatbit = bit_at(word, bitsperword, totalbits-1);
for (i=0; i<totalbits; i++) {
thisbit = bit_at(word, bitsperword, i);
if (thisbit != thatbit ) {
if (thisbit) {
*start = i;
} else {
*end = i;
}
}
thatbit = thisbit;
}
}
int all_bits_set(unsigned int *word, int bitsperword, int totalbits )
{
int i, total=totalbits/bitsperword,bitmask = 0;
for (i=0; i<bitsperword; i++)
{
bitmask |= (1 << i);
}
for (i=0; i<total; i++)
{
if (word[i] != bitmask)
return 0;
}
return 1;
}
int main(int argc, char **argv)
{
struct ast_context *tmp;
struct ast_exten *e, *eroot;
pval *tree, *tmptree, *sws;
struct ast_include *tmpi;
struct ast_sw *sw = 0;
struct ast_ignorepat *ipi;
pval *incl=0;
int localdir = 0, i;
tree = 0;
tmptree = 0;
/* process the command line args */
for (i=1; i<argc; i++)
{
if (strcmp(argv[i],"-d")==0)
localdir =1;
}
/* 3 simple steps: */
/* 1. read in the extensions.conf config file
* 2. traverse, and build an AEL tree
* 3. Output the AEL tree into a file
*/
printf("WARNING: This is an EXTREMELY preliminary version of a program\n");
printf(" that will someday hopefully do a thoughful and intelligent\n");
printf(" job of transforming your extensions.conf file into an\n");
printf(" extensions.ael file.\n");
printf(" This version has absolutely no intelligence, and pretty\n");
printf(" much just does a direct conversion\n");
printf(" The result will most likely need careful attention to\n");
printf(" finish the job!!!!!\n");
if (!localdir)
printf(" (You could use -d the use the extensions.conf in the current directory!)\n");
printf("Loading %s/%s...\n", ast_config_AST_CONFIG_DIR, config);
if (!localdir)
localized_use_conf_dir();
localized_pbx_load_module();
printf("... Done!\n");
tmp = 0;
while ((tmp = localized_walk_contexts(tmp)) ) {
printf("Context: %s\n", tmp->name);
}
printf("=========\n");
tmp = 0;
while ((tmp = localized_walk_contexts(tmp)) ) {
/* printf("Context: %s\n", tmp->name); */
tmptree = pvalCreateNode(PV_CONTEXT);
if (!tree)
tree = tmptree;
else
pvalTopLevAddObject(tree, tmptree);
pvalContextSetName(tmptree, ast_strdup(tmp->name));
if (tmp->includes) {
incl = pvalCreateNode(PV_INCLUDES);
pvalContextAddStatement(tmptree, incl);
for (tmpi = tmp->includes; tmpi; ) { /* includes */
if (strchr(tmpi->name,'|')==0) {
if (tmpi->hastime)
{
char timerange[15];
char dowrange[10];
char domrange[10];
char monrange[10];
int startbit=0, endbit=0;
if (all_bits_set(tmpi->timing.minmask, 30, 720))
strcpy(timerange, "*");
else {
int hr, min;
char tbuf[20];
get_start_stop(tmpi->timing.minmask, 30, 720, &startbit, &endbit);
hr = startbit/30;
min = (startbit % 30) * 2;
sprintf(tbuf,"%02d:%02d", hr, min);
strcpy(timerange, tbuf);
hr = endbit/30;
min = (endbit % 30) * 2;
sprintf(tbuf,"%02d:%02d", hr, min);
strcat(timerange,"-");
strcat(timerange,tbuf);
}
if (all_bits_set(&tmpi->timing.dowmask, 7, 7))
strcpy(dowrange, "*");
else {
get_start_stop(&tmpi->timing.dowmask, 7, 7, &startbit, &endbit);
strcpy(dowrange, days[startbit]);
strcat(dowrange,"-");
strcat(dowrange, days[endbit]);
}
if (all_bits_set(&tmpi->timing.monthmask, 12, 12))
strcpy(monrange, "*");
else {
get_start_stop(&tmpi->timing.monthmask, 12, 12, &startbit, &endbit);
strcpy(monrange, months[startbit]);
strcat(monrange,"-");
strcat(monrange, months[endbit]);
}
if (all_bits_set(&tmpi->timing.daymask, 31, 31))
strcpy(domrange, "*");
else {
char tbuf[20];
get_start_stop(&tmpi->timing.daymask, 31, 31, &startbit, &endbit);
sprintf(tbuf,"%d", startbit);
strcpy(domrange, tbuf);
strcat(domrange,"-");
sprintf(tbuf,"%d", endbit);
strcat(domrange, tbuf);
}
/* now all 4 fields are set; what do we do? */
pvalIncludesAddIncludeWithTimeConstraints(incl, strdup(tmpi->name), strdup(timerange), strdup(domrange), strdup(dowrange), strdup(monrange));
} else {
pvalIncludesAddInclude(incl, strdup(tmpi->name));
}
} else { /* it appears the timing constraint info is tacked onto the name, carve it up and divvy it out */
char *dow,*dom,*mon;
char *all = strdup(tmpi->name);
char *hr = strchr(all,'|');
if (hr) {
*hr++ = 0;
dow = strchr(hr,'|');
if (dow) {
*dow++ = 0;
dom = strchr(dow,'|');
if (dom) {
*dom++ = 0;
mon = strchr(dom,'|');
if (mon) {
*mon++ = 0;
/* now all 4 fields are set; what do we do? */
pvalIncludesAddIncludeWithTimeConstraints(incl, strdup(all), strdup(hr), strdup(dow), strdup(dom), strdup(mon));
/* the original data is always best to keep (no 2-min rounding) */
} else {
ast_log(LOG_ERROR,"No month spec attached to include!\n");
}
} else {
ast_log(LOG_ERROR,"No day of month spec attached to include!\n");
}
} else {
ast_log(LOG_ERROR,"No day of week spec attached to include!\n");
}
}
free(all);
}
tmpi = tmpi->next;
}
}
for (ipi = tmp->ignorepats; ipi; ) { /* ignorepats */
incl = pvalCreateNode(PV_IGNOREPAT);
pvalIgnorePatSetPattern(incl,(char *)ipi->pattern);
pvalContextAddStatement(tmptree, incl);
ipi = ipi->next;
}
eroot=0;
while ( (eroot = localized_walk_context_extensions(tmp, eroot)) ) {
pval *exten = pvalCreateNode(PV_EXTENSION);
pvalContextAddStatement(tmptree, exten);
pvalExtenSetName(exten, ast_strdup(eroot->exten));
if (eroot->peer) {
pval *block = pvalCreateNode(PV_STATEMENTBLOCK);
pvalExtenSetStatement(exten, block);
e = 0;
while ( (e = localized_walk_extension_priorities(eroot, e)) ) {
pval *statemnt = pvalCreateNode(PV_APPLICATION_CALL);
pval *args = pvalCreateNode(PV_WORD);
/* printf(" %s(%s)\n", e->app, (char*)e->data); */
pvalAppCallSetAppName(statemnt, ast_strdup(e->app));
pvalWordSetString(args, ast_strdup(e->data));
pvalAppCallAddArg(statemnt, args);
pvalStatementBlockAddStatement(block, statemnt);
}
} else if (eroot->priority == -1) {
pval *statemnt = pvalCreateNode(PV_APPLICATION_CALL);
pval *args = pvalCreateNode(PV_WORD);
/* printf("Mike, we have a hint on exten %s with data %s\n", eroot->exten, eroot->app); */
pvalAppCallSetAppName(statemnt, "NoOp");
pvalWordSetString(args, ast_strdup(eroot->app));
pvalExtenSetStatement(exten, statemnt);
pvalExtenSetHints(exten, ast_strdup(eroot->app));
} else {
pval *statemnt = pvalCreateNode(PV_APPLICATION_CALL);
pval *args = pvalCreateNode(PV_WORD);
/* printf(" %s (%s)\n", eroot->app, (char *)eroot->data); */
pvalAppCallSetAppName(statemnt, ast_strdup(eroot->app));
pvalWordSetString(args, ast_strdup(eroot->data));
pvalAppCallAddArg(statemnt, args);
pvalExtenSetStatement(exten, statemnt);
}
/* printf(" extension: %s\n", eroot->exten); */
}
if (AST_LIST_FIRST(&tmp->alts)) {
sws = pvalCreateNode(PV_SWITCHES);
pvalContextAddStatement(tmptree,sws);
sw = 0;
while ((sw = localized_walk_context_switches(tmp,sw)) ) {
pvalSwitchesAddSwitch(sws, ast_strdup(sw->name));
}
}
}
printf("Generating aelout.ael file...\n");
ael2_print("aelout.ael", tree);
printf("...Done!\n");
return 0;
}
/* ==================================== for linking internal stuff to external stuff */
int pbx_builtin_setvar(struct ast_channel *chan, const char *data)
{
return localized_pbx_builtin_setvar(chan, data);
}
void pbx_substitute_variables_helper(struct ast_channel *c,const char *cp1,char *cp2,int count);
void pbx_substitute_variables_helper(struct ast_channel *c,const char *cp1,char *cp2,int count)
{
if (cp1 && *cp1)
strncpy(cp2,cp1,AST_MAX_EXTENSION); /* Right now, this routine is ONLY being called for
a possible var substitution on extension names,
so....! */
else
*cp2 = 0;
}
int ast_add_extension2(struct ast_context *con,
int replace, const char *extension, int priority, const char *label, const char *callerid,
const char *application, void *data, void (*datad)(void *),
const char *registrar)
{
return localized_add_extension2(con, replace, extension, priority, label, callerid, application, data, datad, registrar);
}
int ast_context_add_ignorepat2(struct ast_context *con, const char *value, const char *registrar)
{
return localized_context_add_ignorepat2(con, value, registrar);
}
int ast_context_add_switch2(struct ast_context *con, const char *value,
const char *data, int eval, const char *registrar)
{
return localized_context_add_switch2(con, value, data, eval, registrar);
}
int ast_context_add_include2(struct ast_context *con, const char *value,
const char *registrar)
{
return localized_context_add_include2(con, value,registrar);
}
struct ast_context *ast_context_find_or_create(struct ast_context **extcontexts, struct ast_hashtab *exttable, const char *name, const char *registrar)
{
printf("find/Creating context %s, registrar=%s\n", name, registrar);
return localized_context_find_or_create(extcontexts, exttable, name, registrar);
}
void ast_cli_register_multiple(void);
void ast_cli_register_multiple(void)
{
}
void ast_module_register(const struct ast_module_info *x)
{
}
void ast_module_unregister(const struct ast_module_info *x)
{
}
void ast_cli_unregister_multiple(void);
void ast_cli_unregister_multiple(void)
{
}
struct ast_context *ast_walk_contexts(struct ast_context *con);
struct ast_context *ast_walk_contexts(struct ast_context *con)
{
return localized_walk_contexts(con);
}
void ast_context_destroy(struct ast_context *con, const char *registrar);
void ast_context_destroy(struct ast_context *con, const char *registrar)
{
return localized_context_destroy(con, registrar);
}
int ast_context_verify_includes(struct ast_context *con);
int ast_context_verify_includes(struct ast_context *con)
{
return localized_context_verify_includes(con);
}
void ast_merge_contexts_and_delete(struct ast_context **extcontexts, struct ast_hashtab *exttable, const char *registrar);
void ast_merge_contexts_and_delete(struct ast_context **extcontexts, struct ast_hashtab *exttable, const char *registrar)
{
localized_merge_contexts_and_delete(extcontexts, exttable, registrar);
}
struct ast_exten *pbx_find_extension(struct ast_channel *chan,
struct ast_context *bypass,
struct pbx_find_info *q,
const char *context,
const char *exten,
int priority,
const char *label,
const char *callerid,
enum ext_match_t action);
struct ast_exten *pbx_find_extension(struct ast_channel *chan,
struct ast_context *bypass,
struct pbx_find_info *q,
const char *context,
const char *exten,
int priority,
const char *label,
const char *callerid,
enum ext_match_t action)
{
return localized_find_extension(bypass, q, context, exten, priority, label, callerid, action);
}
int ast_hashtab_compare_contexts(const void *ah_a, const void *ah_b);
int ast_hashtab_compare_contexts(const void *ah_a, const void *ah_b)
{
return 0;
}
unsigned int ast_hashtab_hash_contexts(const void *obj);
unsigned int ast_hashtab_hash_contexts(const void *obj)
{
return 0;
}
#ifdef DEBUG_THREADS
#if !defined(LOW_MEMORY)
void ast_mark_lock_acquired(void *lock_addr)
{
}
#ifdef HAVE_BKTR
void ast_remove_lock_info(void *lock_addr, struct ast_bt *bt)
{
}
void ast_store_lock_info(enum ast_lock_type type, const char *filename,
int line_num, const char *func, const char *lock_name, void *lock_addr, struct ast_bt *bt)
{
}
int ast_bt_get_addresses(struct ast_bt *bt)
{
return 0;
}
#else
void ast_remove_lock_info(void *lock_addr)
{
}
void ast_store_lock_info(enum ast_lock_type type, const char *filename,
int line_num, const char *func, const char *lock_name, void *lock_addr)
{
}
#endif /* HAVE_BKTR */
#endif /* !defined(LOW_MEMORY) */
#endif /* DEBUG_THREADS */
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