#include "asterisk.h"
#include <ctype.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include "asterisk/lock.h"
#include "asterisk/io.h"
#include "asterisk/logger.h"
#include "asterisk/md5.h"
#include "asterisk/sha1.h"
#include "asterisk/options.h"
#include "asterisk/cli.h"
#include "asterisk/linkedlists.h"
#include "asterisk/strings.h"
#include "asterisk/time.h"
#include "asterisk/stringfields.h"
#include "asterisk/utils.h"
#include "asterisk/threadstorage.h"
Go to the source code of this file.
Data Structures | |
struct | thr_arg |
Defines | |
#define | AST_API_MODULE |
#define | AST_API_MODULE |
#define | AST_API_MODULE |
#define | AST_API_MODULE |
#define | AST_API_MODULE |
#define | AST_API_MODULE |
#define | ERANGE 34 |
#define | ONE_MILLION 1000000 |
Functions | |
ast_string_field | __ast_string_field_alloc_space (struct ast_string_field_mgr *mgr, size_t needed, ast_string_field *fields, int num_fields) |
void | __ast_string_field_index_build (struct ast_string_field_mgr *mgr, ast_string_field *fields, int num_fields, int index, const char *format,...) |
void | __ast_string_field_index_build_va (struct ast_string_field_mgr *mgr, ast_string_field *fields, int num_fields, int index, const char *format, va_list ap1, va_list ap2) |
int | __ast_string_field_init (struct ast_string_field_mgr *mgr, size_t size, ast_string_field *fields, int num_fields) |
int | _ast_asprintf (char **ret, const char *file, int lineno, const char *func, const char *fmt,...) |
static int | add_string_pool (struct ast_string_field_mgr *mgr, size_t size) |
int | ast_atomic_fetchadd_int_slow (volatile int *p, int v) |
int | ast_base64decode (unsigned char *dst, const char *src, int max) |
decode BASE64 encoded text | |
int | ast_base64encode (char *dst, const unsigned char *src, int srclen, int max) |
int | ast_base64encode_full (char *dst, const unsigned char *src, int srclen, int max, int linebreaks) |
encode text to BASE64 coding | |
int | ast_build_string (char **buffer, size_t *space, const char *fmt,...) |
int | ast_build_string_va (char **buffer, size_t *space, const char *fmt, va_list ap) |
Build a string in a buffer, designed to be called repeatedly. | |
int | ast_carefulwrite (int fd, char *s, int len, int timeoutms) |
Try to write string, but wait no more than ms milliseconds before timing out. | |
int | ast_dynamic_str_thread_build_va (struct ast_dynamic_str **buf, size_t max_len, struct ast_threadstorage *ts, int append, const char *fmt, va_list ap) |
Core functionality of ast_dynamic_str_thread_(set|append)_va. | |
void | ast_enable_packet_fragmentation (int sock) |
int | ast_false (const char *s) |
int | ast_get_time_t (const char *src, time_t *dst, time_t _default, int *consumed) |
get values from config variables. | |
hostent * | ast_gethostbyname (const char *host, struct ast_hostent *hp) |
Re-entrant (thread safe) version of gethostbyname that replaces the standard gethostbyname (which is not thread safe). | |
const char * | ast_inet_ntoa (struct in_addr ia) |
thread-safe replacement for inet_ntoa(). | |
void | ast_join (char *s, size_t len, char *const w[]) |
void | ast_md5_hash (char *output, char *input) |
Produce 32 char MD5 hash of value. | |
AST_MUTEX_DEFINE_STATIC (fetchadd_m) | |
AST_MUTEX_DEFINE_STATIC (randomlock) | |
glibc puts a lock inside random(3), so that the results are thread-safe. BSD libc (and others) do not. | |
AST_MUTEX_DEFINE_STATIC (test_lock2) | |
AST_MUTEX_DEFINE_STATIC (test_lock) | |
AST_MUTEX_DEFINE_STATIC (__mutex) | |
char * | ast_process_quotes_and_slashes (char *start, char find, char replace_with) |
Process a string to find and replace characters. | |
int | ast_pthread_create_stack (pthread_t *thread, pthread_attr_t *attr, void *(*start_routine)(void *), void *data, size_t stacksize, const char *file, const char *caller, int line, const char *start_fn) |
long int | ast_random (void) |
void | ast_sha1_hash (char *output, char *input) |
Produce 40 char SHA1 hash of value. | |
char * | ast_strip_quoted (char *s, const char *beg_quotes, const char *end_quotes) |
AST_THREADSTORAGE (inet_ntoa_buf, inet_ntoa_buf_init) | |
int | ast_true (const char *s) |
timeval | ast_tvadd (struct timeval a, struct timeval b) |
timeval | ast_tvsub (struct timeval a, struct timeval b) |
Returns the difference of two timevals a - b. | |
char * | ast_unescape_semicolon (char *s) |
Strip backslash for "escaped" semicolons. s The string to be stripped (will be modified). | |
void | ast_uri_decode (char *s) |
Decode URI, URN, URL (overwrite string). | |
char * | ast_uri_encode (const char *string, char *outbuf, int buflen, int doreserved) |
Turn text string to URI-encoded XX version At this point, we're converting from ISO-8859-x (8-bit), not UTF8 as in the SIP protocol spec If doreserved == 1 we will convert reserved characters also. RFC 2396, section 2.4 outbuf needs to have more memory allocated than the instring to have room for the expansion. Every char that is converted is replaced by three ASCII characters. | |
int | ast_utils_init (void) |
int | ast_wait_for_input (int fd, int ms) |
static void | base64_init (void) |
static void * | dummy_start (void *data) |
static int | gethostbyname_r (const char *name, struct hostent *ret, char *buf, size_t buflen, struct hostent **result, int *h_errnop) |
Reentrant replacement for gethostbyname for BSD-based systems. | |
int | test_for_thread_safety (void) |
static void * | test_thread_body (void *data) |
This is a regression test for recursive mutexes. test_for_thread_safety() will return 0 if recursive mutex locks are working properly, and non-zero if they are not working properly. | |
static struct timeval | tvfix (struct timeval a) |
Variables | |
const char | __ast_string_field_empty [] = "" |
static char | b2a [256] |
static char | base64 [64] |
static int | lock_count = 0 |
static int | test_errors = 0 |
static pthread_t | test_thread |
Definition in file utils.c.
#define ERANGE 34 |
duh? ERANGE value copied from web...
Definition at line 74 of file utils.c.
Referenced by gethostbyname_r(), and reload_queue_members().
#define ONE_MILLION 1000000 |
ast_string_field __ast_string_field_alloc_space | ( | struct ast_string_field_mgr * | mgr, | |
size_t | needed, | |||
ast_string_field * | fields, | |||
int | num_fields | |||
) |
Definition at line 1244 of file utils.c.
References add_string_pool(), ast_string_field_pool::base, ast_string_field_mgr::pool, ast_string_field_mgr::size, ast_string_field_mgr::space, and ast_string_field_mgr::used.
01246 { 01247 char *result = NULL; 01248 01249 if (__builtin_expect(needed > mgr->space, 0)) { 01250 size_t new_size = mgr->size * 2; 01251 01252 while (new_size < needed) 01253 new_size *= 2; 01254 01255 if (add_string_pool(mgr, new_size)) 01256 return NULL; 01257 } 01258 01259 result = mgr->pool->base + mgr->used; 01260 mgr->used += needed; 01261 mgr->space -= needed; 01262 return result; 01263 }
void __ast_string_field_index_build | ( | struct ast_string_field_mgr * | mgr, | |
ast_string_field * | fields, | |||
int | num_fields, | |||
int | index, | |||
const char * | format, | |||
... | ||||
) |
Definition at line 1292 of file utils.c.
References __ast_string_field_index_build_va().
01295 { 01296 va_list ap1, ap2; 01297 01298 va_start(ap1, format); 01299 va_start(ap2, format); /* va_copy does not exist on FreeBSD */ 01300 01301 __ast_string_field_index_build_va(mgr, fields, num_fields, index, format, ap1, ap2); 01302 01303 va_end(ap1); 01304 va_end(ap2); 01305 }
void __ast_string_field_index_build_va | ( | struct ast_string_field_mgr * | mgr, | |
ast_string_field * | fields, | |||
int | num_fields, | |||
int | index, | |||
const char * | format, | |||
va_list | ap1, | |||
va_list | ap2 | |||
) |
Definition at line 1265 of file utils.c.
References add_string_pool(), ast_string_field_pool::base, ast_string_field_mgr::pool, ast_string_field_mgr::size, ast_string_field_mgr::space, and ast_string_field_mgr::used.
Referenced by __ast_string_field_index_build().
01268 { 01269 size_t needed; 01270 01271 needed = vsnprintf(mgr->pool->base + mgr->used, mgr->space, format, ap1) + 1; 01272 01273 va_end(ap1); 01274 01275 if (needed > mgr->space) { 01276 size_t new_size = mgr->size * 2; 01277 01278 while (new_size < needed) 01279 new_size *= 2; 01280 01281 if (add_string_pool(mgr, new_size)) 01282 return; 01283 01284 vsprintf(mgr->pool->base + mgr->used, format, ap2); 01285 } 01286 01287 fields[index] = mgr->pool->base + mgr->used; 01288 mgr->used += needed; 01289 mgr->space -= needed; 01290 }
int __ast_string_field_init | ( | struct ast_string_field_mgr * | mgr, | |
size_t | size, | |||
ast_string_field * | fields, | |||
int | num_fields | |||
) |
Definition at line 1230 of file utils.c.
References add_string_pool().
01232 { 01233 int index; 01234 01235 if (add_string_pool(mgr, size)) 01236 return -1; 01237 01238 for (index = 0; index < num_fields; index++) 01239 fields[index] = __ast_string_field_empty; 01240 01241 return 0; 01242 }
int _ast_asprintf | ( | char ** | ret, | |
const char * | file, | |||
int | lineno, | |||
const char * | func, | |||
const char * | fmt, | |||
... | ||||
) |
Definition at line 1412 of file utils.c.
References MALLOC_FAILURE_MSG, and vasprintf.
01413 { 01414 int res; 01415 va_list ap; 01416 01417 va_start(ap, fmt); 01418 if ((res = vasprintf(ret, fmt, ap)) == -1) { 01419 MALLOC_FAILURE_MSG; 01420 } 01421 va_end(ap); 01422 01423 return res; 01424 }
static int add_string_pool | ( | struct ast_string_field_mgr * | mgr, | |
size_t | size | |||
) | [static] |
Definition at line 1214 of file utils.c.
References ast_calloc, ast_string_field_mgr::pool, ast_string_field_mgr::size, ast_string_field_mgr::space, and ast_string_field_mgr::used.
Referenced by __ast_string_field_alloc_space(), __ast_string_field_index_build_va(), and __ast_string_field_init().
01215 { 01216 struct ast_string_field_pool *pool; 01217 01218 if (!(pool = ast_calloc(1, sizeof(*pool) + size))) 01219 return -1; 01220 01221 pool->prev = mgr->pool; 01222 mgr->pool = pool; 01223 mgr->size = size; 01224 mgr->space = size; 01225 mgr->used = 0; 01226 01227 return 0; 01228 }
int ast_atomic_fetchadd_int_slow | ( | volatile int * | p, | |
int | v | |||
) |
Definition at line 1309 of file utils.c.
References ast_mutex_lock(), and ast_mutex_unlock().
01310 { 01311 int ret; 01312 ast_mutex_lock(&fetchadd_m); 01313 ret = *p; 01314 *p += v; 01315 ast_mutex_unlock(&fetchadd_m); 01316 return ret; 01317 }
int ast_base64decode | ( | unsigned char * | dst, | |
const char * | src, | |||
int | max | |||
) |
decode BASE64 encoded text
Definition at line 328 of file utils.c.
Referenced by __ast_check_signature(), base64_decode(), and osp_validate_token().
00329 { 00330 int cnt = 0; 00331 unsigned int byte = 0; 00332 unsigned int bits = 0; 00333 int incnt = 0; 00334 while(*src && (cnt < max)) { 00335 /* Shift in 6 bits of input */ 00336 byte <<= 6; 00337 byte |= (b2a[(int)(*src)]) & 0x3f; 00338 bits += 6; 00339 src++; 00340 incnt++; 00341 /* If we have at least 8 bits left over, take that character 00342 off the top */ 00343 if (bits >= 8) { 00344 bits -= 8; 00345 *dst = (byte >> bits) & 0xff; 00346 dst++; 00347 cnt++; 00348 } 00349 } 00350 /* Dont worry about left over bits, they're extra anyway */ 00351 return cnt; 00352 }
int ast_base64encode | ( | char * | dst, | |
const unsigned char * | src, | |||
int | srclen, | |||
int | max | |||
) |
Definition at line 406 of file utils.c.
References ast_base64encode_full().
Referenced by __ast_sign(), aji_act_hook(), base64_encode(), build_secret(), and osp_check_destination().
00407 { 00408 return ast_base64encode_full(dst, src, srclen, max, 0); 00409 }
int ast_base64encode_full | ( | char * | dst, | |
const unsigned char * | src, | |||
int | srclen, | |||
int | max, | |||
int | linebreaks | |||
) |
encode text to BASE64 coding
Definition at line 355 of file utils.c.
Referenced by ast_base64encode().
00356 { 00357 int cnt = 0; 00358 int col = 0; 00359 unsigned int byte = 0; 00360 int bits = 0; 00361 int cntin = 0; 00362 /* Reserve space for null byte at end of string */ 00363 max--; 00364 while ((cntin < srclen) && (cnt < max)) { 00365 byte <<= 8; 00366 byte |= *(src++); 00367 bits += 8; 00368 cntin++; 00369 if ((bits == 24) && (cnt + 4 <= max)) { 00370 *dst++ = base64[(byte >> 18) & 0x3f]; 00371 *dst++ = base64[(byte >> 12) & 0x3f]; 00372 *dst++ = base64[(byte >> 6) & 0x3f]; 00373 *dst++ = base64[byte & 0x3f]; 00374 cnt += 4; 00375 col += 4; 00376 bits = 0; 00377 byte = 0; 00378 } 00379 if (linebreaks && (cnt < max) && (col == 64)) { 00380 *dst++ = '\n'; 00381 cnt++; 00382 col = 0; 00383 } 00384 } 00385 if (bits && (cnt + 4 <= max)) { 00386 /* Add one last character for the remaining bits, 00387 padding the rest with 0 */ 00388 byte <<= 24 - bits; 00389 *dst++ = base64[(byte >> 18) & 0x3f]; 00390 *dst++ = base64[(byte >> 12) & 0x3f]; 00391 if (bits == 16) 00392 *dst++ = base64[(byte >> 6) & 0x3f]; 00393 else 00394 *dst++ = '='; 00395 *dst++ = '='; 00396 cnt += 4; 00397 } 00398 if (linebreaks && (cnt < max)) { 00399 *dst++ = '\n'; 00400 cnt++; 00401 } 00402 *dst = '\0'; 00403 return cnt; 00404 }
int ast_build_string | ( | char ** | buffer, | |
size_t * | space, | |||
const char * | fmt, | |||
... | ||||
) |
Definition at line 1056 of file utils.c.
References ast_build_string_va().
Referenced by __queues_show(), add_codec_to_sdp(), add_noncodec_to_sdp(), add_sdp(), add_t38_sdp(), ast_cdr_serialize_variables(), ast_http_setcookie(), config_odbc(), config_pgsql(), function_realtime_read(), html_translate(), httpstatus_callback(), initreqprep(), pbx_builtin_serialize_variables(), print_uptimestr(), show_translation(), show_translation_deprecated(), transmit_notify_with_mwi(), transmit_state_notify(), and xml_translate().
01057 { 01058 va_list ap; 01059 int result; 01060 01061 va_start(ap, fmt); 01062 result = ast_build_string_va(buffer, space, fmt, ap); 01063 va_end(ap); 01064 01065 return result; 01066 }
int ast_build_string_va | ( | char ** | buffer, | |
size_t * | space, | |||
const char * | fmt, | |||
va_list | ap | |||
) |
Build a string in a buffer, designed to be called repeatedly.
This is a wrapper for snprintf, that properly handles the buffer pointer and buffer space available.
buffer | current position in buffer to place string into (will be updated on return) | |
space | remaining space in buffer (will be updated on return) | |
fmt | printf-style format string | |
ap | varargs list of arguments for format |
Definition at line 1037 of file utils.c.
Referenced by ast_build_string().
01038 { 01039 int result; 01040 01041 if (!buffer || !*buffer || !space || !*space) 01042 return -1; 01043 01044 result = vsnprintf(*buffer, *space, fmt, ap); 01045 01046 if (result < 0) 01047 return -1; 01048 else if (result > *space) 01049 result = *space; 01050 01051 *buffer += result; 01052 *space -= result; 01053 return 0; 01054 }
int ast_carefulwrite | ( | int | fd, | |
char * | s, | |||
int | len, | |||
int | timeoutms | |||
) |
Try to write string, but wait no more than ms milliseconds before timing out.
ast_carefulwrite
Definition at line 975 of file utils.c.
References errno, pollfd::events, pollfd::fd, poll(), and POLLOUT.
Referenced by agi_debug_cli(), ast_cli(), astman_append(), and process_events().
00976 { 00977 /* Try to write string, but wait no more than ms milliseconds 00978 before timing out */ 00979 int res = 0; 00980 struct pollfd fds[1]; 00981 while (len) { 00982 res = write(fd, s, len); 00983 if ((res < 0) && (errno != EAGAIN)) { 00984 return -1; 00985 } 00986 if (res < 0) 00987 res = 0; 00988 len -= res; 00989 s += res; 00990 res = 0; 00991 if (len) { 00992 fds[0].fd = fd; 00993 fds[0].events = POLLOUT; 00994 /* Wait until writable again */ 00995 res = poll(fds, 1, timeoutms); 00996 if (res < 1) 00997 return -1; 00998 } 00999 } 01000 return res; 01001 }
int ast_dynamic_str_thread_build_va | ( | struct ast_dynamic_str ** | buf, | |
size_t | max_len, | |||
struct ast_threadstorage * | ts, | |||
int | append, | |||
const char * | fmt, | |||
va_list | ap | |||
) |
Core functionality of ast_dynamic_str_thread_(set|append)_va.
The arguments to this function are the same as those described for ast_dynamic_str_thread_set_va except for an addition argument, append. If append is non-zero, this will append to the current string instead of writing over it.
Definition at line 1345 of file utils.c.
References ast_realloc, ast_threadstorage::key, and offset.
01347 { 01348 int res; 01349 int offset = (append && (*buf)->len) ? strlen((*buf)->str) : 0; 01350 #if defined(DEBUG_THREADLOCALS) 01351 struct ast_dynamic_str *old_buf = *buf; 01352 #endif /* defined(DEBUG_THREADLOCALS) */ 01353 01354 res = vsnprintf((*buf)->str + offset, (*buf)->len - offset, fmt, ap); 01355 01356 /* Check to see if there was not enough space in the string buffer to prepare 01357 * the string. Also, if a maximum length is present, make sure the current 01358 * length is less than the maximum before increasing the size. */ 01359 if ((res + offset + 1) > (*buf)->len && (max_len ? ((*buf)->len < max_len) : 1)) { 01360 /* Set the new size of the string buffer to be the size needed 01361 * to hold the resulting string (res) plus one byte for the 01362 * terminating '\0'. If this size is greater than the max, set 01363 * the new length to be the maximum allowed. */ 01364 if (max_len) 01365 (*buf)->len = ((res + offset + 1) < max_len) ? (res + offset + 1) : max_len; 01366 else 01367 (*buf)->len = res + offset + 1; 01368 01369 if (!(*buf = ast_realloc(*buf, (*buf)->len + sizeof(*(*buf))))) 01370 return AST_DYNSTR_BUILD_FAILED; 01371 01372 if (append) 01373 (*buf)->str[offset] = '\0'; 01374 01375 if (ts) { 01376 pthread_setspecific(ts->key, *buf); 01377 #if defined(DEBUG_THREADLOCALS) 01378 __ast_threadstorage_object_replace(old_buf, *buf, (*buf)->len + sizeof(*(*buf))); 01379 #endif /* defined(DEBUG_THREADLOCALS) */ 01380 } 01381 01382 /* va_end() and va_start() must be done before calling 01383 * vsnprintf() again. */ 01384 return AST_DYNSTR_BUILD_RETRY; 01385 } 01386 01387 return res; 01388 }
void ast_enable_packet_fragmentation | ( | int | sock | ) |
Definition at line 1390 of file utils.c.
References ast_log(), and LOG_WARNING.
Referenced by ast_netsock_bindaddr().
01391 { 01392 #if defined(HAVE_IP_MTU_DISCOVER) 01393 int val = IP_PMTUDISC_DONT; 01394 01395 if (setsockopt(sock, IPPROTO_IP, IP_MTU_DISCOVER, &val, sizeof(val))) 01396 ast_log(LOG_WARNING, "Unable to disable PMTU discovery. Large UDP packets may fail to be delivered when sent from this socket.\n"); 01397 #endif /* HAVE_IP_MTU_DISCOVER */ 01398 }
int ast_false | ( | const char * | val | ) |
Determine if a string containing a boolean value is "false". This function checks to see whether a string passed to it is an indication of an "false" value. It checks to see if the string is "no", "false", "n", "f", "off" or "0".
Returns 0 if val is a NULL pointer, -1 if "false", and 0 otherwise.
Definition at line 1085 of file utils.c.
References ast_strlen_zero().
Referenced by aji_create_client(), aji_load_config(), ast_rtp_reload(), ast_udptl_reload(), handle_common_options(), init_acf_query(), load_config(), load_odbc_config(), reload(), run_agi(), set_insecure_flags(), and strings_to_mask().
01086 { 01087 if (ast_strlen_zero(s)) 01088 return 0; 01089 01090 /* Determine if this is a false value */ 01091 if (!strcasecmp(s, "no") || 01092 !strcasecmp(s, "false") || 01093 !strcasecmp(s, "n") || 01094 !strcasecmp(s, "f") || 01095 !strcasecmp(s, "0") || 01096 !strcasecmp(s, "off")) 01097 return -1; 01098 01099 return 0; 01100 }
int ast_get_time_t | ( | const char * | src, | |
time_t * | dst, | |||
time_t | _default, | |||
int * | consumed | |||
) |
get values from config variables.
Definition at line 1322 of file utils.c.
References ast_strlen_zero(), and t.
Referenced by acf_strftime(), build_peer(), cache_lookup_internal(), handle_saydatetime(), load_password(), play_message_datetime(), and sayunixtime_exec().
01323 { 01324 long t; 01325 int scanned; 01326 01327 if (dst == NULL) 01328 return -1; 01329 01330 *dst = _default; 01331 01332 if (ast_strlen_zero(src)) 01333 return -1; 01334 01335 /* only integer at the moment, but one day we could accept more formats */ 01336 if (sscanf(src, "%ld%n", &t, &scanned) == 1) { 01337 *dst = t; 01338 if (consumed) 01339 *consumed = scanned; 01340 return 0; 01341 } else 01342 return -1; 01343 }
struct hostent* ast_gethostbyname | ( | const char * | host, | |
struct ast_hostent * | hp | |||
) |
Re-entrant (thread safe) version of gethostbyname that replaces the standard gethostbyname (which is not thread safe).
Definition at line 184 of file utils.c.
References gethostbyname_r(), hp, and s.
Referenced by __ast_http_load(), __set_address_from_contact(), ast_dnsmgr_lookup(), ast_find_ourip(), ast_get_ip_or_srv(), ast_sip_ouraddrfor(), check_via(), create_addr(), dnsmgr_refresh(), festival_exec(), gtalk_load_config(), gtalk_update_stun(), iax_template_parse(), launch_netscript(), parse_register_contact(), process_sdp(), realtime_peer(), realtime_user(), reload_config(), rtcp_do_debug_ip(), rtcp_do_debug_ip_deprecated(), rtp_do_debug_ip(), set_config(), set_destination(), sip_devicestate(), sip_do_debug_ip(), and udptl_do_debug_ip().
00185 { 00186 int res; 00187 int herrno; 00188 int dots=0; 00189 const char *s; 00190 struct hostent *result = NULL; 00191 /* Although it is perfectly legitimate to lookup a pure integer, for 00192 the sake of the sanity of people who like to name their peers as 00193 integers, we break with tradition and refuse to look up a 00194 pure integer */ 00195 s = host; 00196 res = 0; 00197 while(s && *s) { 00198 if (*s == '.') 00199 dots++; 00200 else if (!isdigit(*s)) 00201 break; 00202 s++; 00203 } 00204 if (!s || !*s) { 00205 /* Forge a reply for IP's to avoid octal IP's being interpreted as octal */ 00206 if (dots != 3) 00207 return NULL; 00208 memset(hp, 0, sizeof(struct ast_hostent)); 00209 hp->hp.h_addrtype = AF_INET; 00210 hp->hp.h_addr_list = (void *) hp->buf; 00211 hp->hp.h_addr = hp->buf + sizeof(void *); 00212 if (inet_pton(AF_INET, host, hp->hp.h_addr) > 0) 00213 return &hp->hp; 00214 return NULL; 00215 00216 } 00217 #ifdef HAVE_GETHOSTBYNAME_R_5 00218 result = gethostbyname_r(host, &hp->hp, hp->buf, sizeof(hp->buf), &herrno); 00219 00220 if (!result || !hp->hp.h_addr_list || !hp->hp.h_addr_list[0]) 00221 return NULL; 00222 #else 00223 res = gethostbyname_r(host, &hp->hp, hp->buf, sizeof(hp->buf), &result, &herrno); 00224 00225 if (res || !result || !hp->hp.h_addr_list || !hp->hp.h_addr_list[0]) 00226 return NULL; 00227 #endif 00228 return &hp->hp; 00229 }
const char* ast_inet_ntoa | ( | struct in_addr | ia | ) |
thread-safe replacement for inet_ntoa().
Definition at line 495 of file utils.c.
Referenced by __attempt_transmit(), __find_callno(), __iax2_show_peers(), __sip_show_channels(), __sip_xmit(), _sip_show_peer(), _sip_show_peers(), accept_thread(), add_sdp(), add_t38_sdp(), ast_apply_ha(), ast_netsock_bindaddr(), ast_rtcp_read(), ast_rtcp_write_rr(), ast_rtcp_write_sr(), ast_rtp_raw_write(), ast_rtp_read(), ast_rtp_sendcng(), ast_rtp_senddigit_begin(), ast_rtp_senddigit_continuation(), ast_rtp_senddigit_end(), ast_sip_ouraddrfor(), ast_udptl_bridge(), ast_udptl_read(), ast_udptl_write(), authenticate(), bridge_native_loop(), bridge_p2p_rtp_write(), build_callid_pvt(), build_callid_registry(), build_contact(), build_reply_digest(), build_rpid(), build_via(), check_access(), check_user_full(), check_via(), copy_via_headers(), create_addr_from_peer(), dnsmgr_refresh(), dump_addr(), dump_ipaddr(), dundi_rexmit(), dundi_show_peer(), dundi_show_peers(), dundi_show_trans(), dundi_showframe(), dundi_xmit(), external_rtp_create(), find_command(), find_peer(), find_subchannel_and_lock(), function_iaxpeer(), function_sipchaninfo_read(), function_sippeer(), gtalk_create_candidates(), gtalk_update_stun(), handle_command_response(), handle_error(), handle_open_receive_channel_ack_message(), handle_request(), handle_request_bye(), handle_request_register(), handle_request_subscribe(), handle_response(), handle_response_refer(), handle_show_http(), handle_showmanconn(), http_server_start(), httpstatus_callback(), iax2_ack_registry(), iax2_prov_app(), iax2_show_channels(), iax2_show_peer(), iax2_show_registry(), iax2_trunk_queue(), iax_server(), iax_showframe(), initreqprep(), load_module(), mgcp_show_endpoints(), mgcpsock_read(), oh323_addrcmp_str(), oh323_call(), oh323_set_rtp_peer(), parse_register_contact(), process_message(), process_rfc3389(), process_sdp(), raw_hangup(), realtime_peer(), realtime_update_peer(), realtime_user(), reg_source_db(), register_verify(), registry_rerequest(), reload_config(), resend_response(), retrans_pkt(), rtcp_do_debug_ip(), rtcp_do_debug_ip_deprecated(), rtp_do_debug_ip(), send_dtmf(), send_packet(), send_request(), send_response(), send_trunk(), session_do(), set_config(), set_destination(), setup_incoming_call(), sip_do_debug_ip(), sip_do_debug_peer(), sip_handle_t38_reinvite(), sip_poke_peer(), sip_set_rtp_peer(), sip_set_udptl_peer(), sip_show_channel(), sip_show_settings(), sipsock_read(), skinny_session(), skinny_show_devices(), socket_process(), timing_read(), transmit_notify_with_mwi(), udptl_do_debug_ip(), and update_registry().
00496 { 00497 char *buf; 00498 00499 if (!(buf = ast_threadstorage_get(&inet_ntoa_buf, INET_ADDRSTRLEN))) 00500 return ""; 00501 00502 return inet_ntop(AF_INET, &ia, buf, INET_ADDRSTRLEN); 00503 }
void ast_join | ( | char * | s, | |
size_t | len, | |||
char *const | w[] | |||
) |
Definition at line 1193 of file utils.c.
Referenced by __ast_cli_generator(), __ast_cli_register(), ast_builtins_init(), console_sendtext(), console_sendtext_deprecated(), find_best(), handle_agidumphtml(), handle_help(), handle_showagi(), help1(), and help_workhorse().
01194 { 01195 int x, ofs = 0; 01196 const char *src; 01197 01198 /* Join words into a string */ 01199 if (!s) 01200 return; 01201 for (x = 0; ofs < len && w[x]; x++) { 01202 if (x > 0) 01203 s[ofs++] = ' '; 01204 for (src = w[x]; *src && ofs < len; src++) 01205 s[ofs++] = *src; 01206 } 01207 if (ofs == len) 01208 ofs--; 01209 s[ofs] = '\0'; 01210 }
void ast_md5_hash | ( | char * | output, | |
char * | input | |||
) |
Produce 32 char MD5 hash of value.
Definition at line 294 of file utils.c.
References md5(), MD5Final(), MD5Init(), and MD5Update().
Referenced by auth_exec(), build_reply_digest(), check_auth(), checkmd5(), and md5().
00295 { 00296 struct MD5Context md5; 00297 unsigned char digest[16]; 00298 char *ptr; 00299 int x; 00300 00301 MD5Init(&md5); 00302 MD5Update(&md5, (unsigned char *)input, strlen(input)); 00303 MD5Final(digest, &md5); 00304 ptr = output; 00305 for (x = 0; x < 16; x++) 00306 ptr += sprintf(ptr, "%2.2x", digest[x]); 00307 }
AST_MUTEX_DEFINE_STATIC | ( | fetchadd_m | ) |
AST_MUTEX_DEFINE_STATIC | ( | randomlock | ) |
glibc puts a lock inside random(3), so that the results are thread-safe. BSD libc (and others) do not.
AST_MUTEX_DEFINE_STATIC | ( | test_lock2 | ) |
AST_MUTEX_DEFINE_STATIC | ( | test_lock | ) |
AST_MUTEX_DEFINE_STATIC | ( | __mutex | ) |
char* ast_process_quotes_and_slashes | ( | char * | start, | |
char | find, | |||
char | replace_with | |||
) |
Process a string to find and replace characters.
start | The string to analyze | |
find | The character to find | |
replace_with | The character that will replace the one we are looking for |
Definition at line 1167 of file utils.c.
Referenced by handle_context_add_extension(), handle_context_add_extension_deprecated(), and pbx_load_config().
01168 { 01169 char *dataPut = start; 01170 int inEscape = 0; 01171 int inQuotes = 0; 01172 01173 for (; *start; start++) { 01174 if (inEscape) { 01175 *dataPut++ = *start; /* Always goes verbatim */ 01176 inEscape = 0; 01177 } else { 01178 if (*start == '\\') { 01179 inEscape = 1; /* Do not copy \ into the data */ 01180 } else if (*start == '\'') { 01181 inQuotes = 1 - inQuotes; /* Do not copy ' into the data */ 01182 } else { 01183 /* Replace , with |, unless in quotes */ 01184 *dataPut++ = inQuotes ? *start : ((*start == find) ? replace_with : *start); 01185 } 01186 } 01187 } 01188 if (start != dataPut) 01189 *dataPut = 0; 01190 return dataPut; 01191 }
int ast_pthread_create_stack | ( | pthread_t * | thread, | |
pthread_attr_t * | attr, | |||
void *(*)(void *) | start_routine, | |||
void * | data, | |||
size_t | stacksize, | |||
const char * | file, | |||
const char * | caller, | |||
int | line, | |||
const char * | start_fn | |||
) |
Definition at line 921 of file utils.c.
References asprintf, ast_log(), ast_malloc, AST_STACKSIZE, dummy_start(), errno, LOG_WARNING, and pthread_create.
00924 { 00925 #if !defined(LOW_MEMORY) 00926 struct thr_arg *a; 00927 #endif 00928 00929 if (!attr) { 00930 attr = alloca(sizeof(*attr)); 00931 pthread_attr_init(attr); 00932 } 00933 00934 #ifdef __linux__ 00935 /* On Linux, pthread_attr_init() defaults to PTHREAD_EXPLICIT_SCHED, 00936 which is kind of useless. Change this here to 00937 PTHREAD_INHERIT_SCHED; that way the -p option to set realtime 00938 priority will propagate down to new threads by default. 00939 This does mean that callers cannot set a different priority using 00940 PTHREAD_EXPLICIT_SCHED in the attr argument; instead they must set 00941 the priority afterwards with pthread_setschedparam(). */ 00942 if ((errno = pthread_attr_setinheritsched(attr, PTHREAD_INHERIT_SCHED))) 00943 ast_log(LOG_WARNING, "pthread_attr_setinheritsched: %s\n", strerror(errno)); 00944 #endif 00945 00946 if (!stacksize) 00947 stacksize = AST_STACKSIZE; 00948 00949 if ((errno = pthread_attr_setstacksize(attr, stacksize ? stacksize : AST_STACKSIZE))) 00950 ast_log(LOG_WARNING, "pthread_attr_setstacksize: %s\n", strerror(errno)); 00951 00952 #if !defined(LOW_MEMORY) 00953 if ((a = ast_malloc(sizeof(*a)))) { 00954 a->start_routine = start_routine; 00955 a->data = data; 00956 start_routine = dummy_start; 00957 asprintf(&a->name, "%-20s started at [%5d] %s %s()", 00958 start_fn, line, file, caller); 00959 data = a; 00960 } 00961 #endif /* !LOW_MEMORY */ 00962 00963 return pthread_create(thread, attr, start_routine, data); /* We're in ast_pthread_create, so it's okay */ 00964 }
long int ast_random | ( | void | ) |
Definition at line 1157 of file utils.c.
References ast_mutex_lock(), and ast_mutex_unlock().
Referenced by __find_callno(), acf_rand_exec(), agent_new(), ast_lock_path(), ast_moh_files_next(), ast_rtp_new_init(), ast_rtp_new_with_bindaddr(), ast_udptl_new_with_bindaddr(), authenticate_request(), build_gateway(), build_iv(), build_reply_digest(), calc_metric(), calc_rxstamp(), check_auth(), dahdi_new(), generate_random_string(), get_trans_id(), gtalk_alloc(), gtalk_create_candidates(), gtalk_new(), handle_response_invite(), iax2_start_transfer(), local_new(), make_email_file(), make_our_tag(), moh_files_alloc(), ogg_vorbis_rewrite(), page_exec(), process_message(), process_weights(), random_exec(), reg_source_db(), registry_authrequest(), reqprep(), sip_alloc(), socket_read(), start_rtp(), stun_req_id(), transmit_fake_auth_response(), transmit_invite(), transmit_register(), transmit_response_using_temp(), try_calling(), and try_firmware().
01158 { 01159 long int res; 01160 ast_mutex_lock(&randomlock); 01161 res = random(); 01162 ast_mutex_unlock(&randomlock); 01163 return res; 01164 }
void ast_sha1_hash | ( | char * | output, | |
char * | input | |||
) |
Produce 40 char SHA1 hash of value.
Definition at line 310 of file utils.c.
References SHA1Input(), SHA1Reset(), and SHA1Result().
Referenced by aji_act_hook(), jabber_make_auth(), and sha1().
00311 { 00312 struct SHA1Context sha; 00313 char *ptr; 00314 int x; 00315 uint8_t Message_Digest[20]; 00316 00317 SHA1Reset(&sha); 00318 00319 SHA1Input(&sha, (const unsigned char *) input, strlen(input)); 00320 00321 SHA1Result(&sha, Message_Digest); 00322 ptr = output; 00323 for (x = 0; x < 20; x++) 00324 ptr += sprintf(ptr, "%2.2x", Message_Digest[x]); 00325 }
char* ast_strip_quoted | ( | char * | s, | |
const char * | beg_quotes, | |||
const char * | end_quotes | |||
) |
Definition at line 1003 of file utils.c.
Referenced by ast_register_file_version(), iftime(), parse_cookies(), and parse_dial_string().
01004 { 01005 char *e; 01006 char *q; 01007 01008 s = ast_strip(s); 01009 if ((q = strchr(beg_quotes, *s)) && *q != '\0') { 01010 e = s + strlen(s) - 1; 01011 if (*e == *(end_quotes + (q - beg_quotes))) { 01012 s++; 01013 *e = '\0'; 01014 } 01015 } 01016 01017 return s; 01018 }
AST_THREADSTORAGE | ( | inet_ntoa_buf | , | |
inet_ntoa_buf_init | ||||
) |
int ast_true | ( | const char * | val | ) |
Determine if a string containing a boolean value is "true". This function checks to see whether a string passed to it is an indication of an "true" value. It checks to see if the string is "yes", "true", "y", "t", "on" or "1".
Returns 0 if val is a NULL pointer, -1 if "true", and 0 otherwise.
Definition at line 1068 of file utils.c.
References ast_strlen_zero().
Referenced by __ast_http_load(), __login_exec(), _parse(), action_agent_callback_login(), action_agent_logoff(), action_originate(), action_setcdruserfield(), action_updateconfig(), aji_create_client(), aji_load_config(), apply_option(), apply_outgoing(), ast_jb_read_conf(), authenticate(), build_device(), build_gateway(), build_peer(), build_user(), connect_link(), do_directory(), do_reload(), festival_exec(), get_encrypt_methods(), gtalk_load_config(), handle_common_options(), handle_save_dialplan(), init_logger_chain(), init_manager(), load_config(), load_module(), load_moh_classes(), load_odbc_config(), load_rpt_vars(), loadconfigurationfile(), manager_add_queue_member(), manager_pause_queue_member(), odbc_load_module(), osp_load(), parse_config(), pbx_load_config(), pbx_load_users(), process_dahdi(), queue_set_param(), read_agent_config(), reload(), reload_config(), reload_queues(), set_config(), set_insecure_flags(), sla_load_config(), start_monitor_action(), strings_to_mask(), and update_common_options().
01069 { 01070 if (ast_strlen_zero(s)) 01071 return 0; 01072 01073 /* Determine if this is a true value */ 01074 if (!strcasecmp(s, "yes") || 01075 !strcasecmp(s, "true") || 01076 !strcasecmp(s, "y") || 01077 !strcasecmp(s, "t") || 01078 !strcasecmp(s, "1") || 01079 !strcasecmp(s, "on")) 01080 return -1; 01081 01082 return 0; 01083 }
struct timeval ast_tvadd | ( | struct timeval | a, | |
struct timeval | b | |||
) |
Definition at line 1122 of file utils.c.
References ONE_MILLION, and tvfix().
Referenced by __get_from_jb(), agent_hangup(), agent_read(), ast_audiohook_trigger_wait(), ast_channel_bridge(), ast_rtp_sendcng(), ast_rtp_senddigit_begin(), ast_rtp_senddigit_end(), ast_sched_runq(), ast_smoother_read(), ast_translate(), calc_timestamp(), do_cdr(), iax2_process_thread(), jb_get_and_deliver(), monmp3thread(), mp3_exec(), mwi_monitor_handler(), NBScat_exec(), sched_settime(), sched_thread(), schedule_delivery(), sla_process_timers(), and smdi_message_wait().
01123 { 01124 /* consistency checks to guarantee usec in 0..999999 */ 01125 a = tvfix(a); 01126 b = tvfix(b); 01127 a.tv_sec += b.tv_sec; 01128 a.tv_usec += b.tv_usec; 01129 if (a.tv_usec >= ONE_MILLION) { 01130 a.tv_sec++; 01131 a.tv_usec -= ONE_MILLION; 01132 } 01133 return a; 01134 }
struct timeval ast_tvsub | ( | struct timeval | a, | |
struct timeval | b | |||
) |
Returns the difference of two timevals a - b.
Definition at line 1136 of file utils.c.
References ONE_MILLION, and tvfix().
Referenced by ast_channel_bridge(), ast_sched_dump(), ast_translate(), calc_rxstamp(), and calc_timestamp().
01137 { 01138 /* consistency checks to guarantee usec in 0..999999 */ 01139 a = tvfix(a); 01140 b = tvfix(b); 01141 a.tv_sec -= b.tv_sec; 01142 a.tv_usec -= b.tv_usec; 01143 if (a.tv_usec < 0) { 01144 a.tv_sec-- ; 01145 a.tv_usec += ONE_MILLION; 01146 } 01147 return a; 01148 }
char* ast_unescape_semicolon | ( | char * | s | ) |
Strip backslash for "escaped" semicolons. s The string to be stripped (will be modified).
Definition at line 1020 of file utils.c.
Referenced by sip_notify().
01021 { 01022 char *e; 01023 char *work = s; 01024 01025 while ((e = strchr(work, ';'))) { 01026 if ((e > work) && (*(e-1) == '\\')) { 01027 memmove(e - 1, e, strlen(e) + 1); 01028 work = e; 01029 } else { 01030 work = e + 1; 01031 } 01032 } 01033 01034 return s; 01035 }
void ast_uri_decode | ( | char * | s | ) |
Decode URI, URN, URL (overwrite string).
s | String to be decoded |
Definition at line 478 of file utils.c.
Referenced by check_user_full(), get_also_info(), get_destination(), get_refer_info(), handle_request_invite(), handle_uri(), register_verify(), sip_new(), and uridecode().
00479 { 00480 char *o; 00481 unsigned int tmp; 00482 00483 for (o = s; *s; s++, o++) { 00484 if (*s == '%' && strlen(s) > 2 && sscanf(s + 1, "%2x", &tmp) == 1) { 00485 /* have '%', two chars and correct parsing */ 00486 *o = tmp; 00487 s += 2; /* Will be incremented once more when we break out */ 00488 } else /* all other cases, just copy */ 00489 *o = *s; 00490 } 00491 *o = '\0'; 00492 }
char* ast_uri_encode | ( | const char * | string, | |
char * | outbuf, | |||
int | buflen, | |||
int | doreserved | |||
) |
Turn text string to URI-encoded XX version At this point, we're converting from ISO-8859-x (8-bit), not UTF8 as in the SIP protocol spec If doreserved == 1 we will convert reserved characters also. RFC 2396, section 2.4 outbuf needs to have more memory allocated than the instring to have room for the expansion. Every char that is converted is replaced by three ASCII characters.
Definition at line 447 of file utils.c.
Referenced by initreqprep(), and uriencode().
00448 { 00449 char *reserved = ";/?:@&=+$,# "; /* Reserved chars */ 00450 00451 const char *ptr = string; /* Start with the string */ 00452 char *out = NULL; 00453 char *buf = NULL; 00454 00455 ast_copy_string(outbuf, string, buflen); 00456 00457 /* If there's no characters to convert, just go through and don't do anything */ 00458 while (*ptr) { 00459 if (((unsigned char) *ptr) > 127 || (doreserved && strchr(reserved, *ptr)) ) { 00460 /* Oops, we need to start working here */ 00461 if (!buf) { 00462 buf = outbuf; 00463 out = buf + (ptr - string) ; /* Set output ptr */ 00464 } 00465 out += sprintf(out, "%%%02x", (unsigned char) *ptr); 00466 } else if (buf) { 00467 *out = *ptr; /* Continue copying the string */ 00468 out++; 00469 } 00470 ptr++; 00471 } 00472 if (buf) 00473 *out = '\0'; 00474 return outbuf; 00475 }
int ast_utils_init | ( | void | ) |
Definition at line 1400 of file utils.c.
References ast_cli_register_multiple(), and base64_init().
Referenced by main().
01401 { 01402 base64_init(); 01403 #ifdef DEBUG_THREADS 01404 #if !defined(LOW_MEMORY) 01405 ast_cli_register_multiple(utils_cli, sizeof(utils_cli) / sizeof(utils_cli[0])); 01406 #endif 01407 #endif 01408 return 0; 01409 }
int ast_wait_for_input | ( | int | fd, | |
int | ms | |||
) |
Definition at line 966 of file utils.c.
References poll(), POLLIN, and POLLPRI.
Referenced by action_waitevent(), ast_moh_destroy_one(), http_root(), and main().
00967 { 00968 struct pollfd pfd[1]; 00969 memset(pfd, 0, sizeof(pfd)); 00970 pfd[0].fd = fd; 00971 pfd[0].events = POLLIN|POLLPRI; 00972 return poll(pfd, 1, ms); 00973 }
static void base64_init | ( | void | ) | [static] |
Definition at line 411 of file utils.c.
Referenced by ast_utils_init().
00412 { 00413 int x; 00414 memset(b2a, -1, sizeof(b2a)); 00415 /* Initialize base-64 Conversion table */ 00416 for (x = 0; x < 26; x++) { 00417 /* A-Z */ 00418 base64[x] = 'A' + x; 00419 b2a['A' + x] = x; 00420 /* a-z */ 00421 base64[x + 26] = 'a' + x; 00422 b2a['a' + x] = x + 26; 00423 /* 0-9 */ 00424 if (x < 10) { 00425 base64[x + 52] = '0' + x; 00426 b2a['0' + x] = x + 52; 00427 } 00428 } 00429 base64[62] = '+'; 00430 base64[63] = '/'; 00431 b2a[(int)'+'] = 62; 00432 b2a[(int)'/'] = 63; 00433 }
static void* dummy_start | ( | void * | data | ) | [static] |
Definition at line 877 of file utils.c.
References AST_LIST_INSERT_TAIL, AST_MUTEX_KIND, ast_register_thread(), ast_unregister_thread(), thr_arg::data, free, thr_arg::name, pthread_mutex_init, pthread_mutex_lock, pthread_mutex_unlock, thr_arg::start_routine, and strdup.
Referenced by ast_pthread_create_stack().
00878 { 00879 void *ret; 00880 struct thr_arg a = *((struct thr_arg *) data); /* make a local copy */ 00881 #ifdef DEBUG_THREADS 00882 struct thr_lock_info *lock_info; 00883 pthread_mutexattr_t mutex_attr; 00884 #endif 00885 00886 /* note that even though data->name is a pointer to allocated memory, 00887 we are not freeing it here because ast_register_thread is going to 00888 keep a copy of the pointer and then ast_unregister_thread will 00889 free the memory 00890 */ 00891 free(data); 00892 ast_register_thread(a.name); 00893 pthread_cleanup_push(ast_unregister_thread, (void *) pthread_self()); 00894 00895 #ifdef DEBUG_THREADS 00896 if (!(lock_info = ast_threadstorage_get(&thread_lock_info, sizeof(*lock_info)))) 00897 return NULL; 00898 00899 lock_info->thread_id = pthread_self(); 00900 lock_info->thread_name = strdup(a.name); 00901 00902 pthread_mutexattr_init(&mutex_attr); 00903 pthread_mutexattr_settype(&mutex_attr, AST_MUTEX_KIND); 00904 pthread_mutex_init(&lock_info->lock, &mutex_attr); 00905 pthread_mutexattr_destroy(&mutex_attr); 00906 00907 pthread_mutex_lock(&lock_infos_lock.mutex); /* Intentionally not the wrapper */ 00908 AST_LIST_INSERT_TAIL(&lock_infos, lock_info, entry); 00909 pthread_mutex_unlock(&lock_infos_lock.mutex); /* Intentionally not the wrapper */ 00910 #endif /* DEBUG_THREADS */ 00911 00912 ret = a.start_routine(a.data); 00913 00914 pthread_cleanup_pop(1); 00915 00916 return ret; 00917 }
static int gethostbyname_r | ( | const char * | name, | |
struct hostent * | ret, | |||
char * | buf, | |||
size_t | buflen, | |||
struct hostent ** | result, | |||
int * | h_errnop | |||
) | [static] |
Reentrant replacement for gethostbyname for BSD-based systems.
Definition at line 84 of file utils.c.
References ast_mutex_lock(), ast_mutex_unlock(), ERANGE, and gethostbyname.
Referenced by ast_gethostbyname().
00087 { 00088 int hsave; 00089 struct hostent *ph; 00090 ast_mutex_lock(&__mutex); /* begin critical area */ 00091 hsave = h_errno; 00092 00093 ph = gethostbyname(name); 00094 *h_errnop = h_errno; /* copy h_errno to *h_herrnop */ 00095 if (ph == NULL) { 00096 *result = NULL; 00097 } else { 00098 char **p, **q; 00099 char *pbuf; 00100 int nbytes=0; 00101 int naddr=0, naliases=0; 00102 /* determine if we have enough space in buf */ 00103 00104 /* count how many addresses */ 00105 for (p = ph->h_addr_list; *p != 0; p++) { 00106 nbytes += ph->h_length; /* addresses */ 00107 nbytes += sizeof(*p); /* pointers */ 00108 naddr++; 00109 } 00110 nbytes += sizeof(*p); /* one more for the terminating NULL */ 00111 00112 /* count how many aliases, and total length of strings */ 00113 for (p = ph->h_aliases; *p != 0; p++) { 00114 nbytes += (strlen(*p)+1); /* aliases */ 00115 nbytes += sizeof(*p); /* pointers */ 00116 naliases++; 00117 } 00118 nbytes += sizeof(*p); /* one more for the terminating NULL */ 00119 00120 /* here nbytes is the number of bytes required in buffer */ 00121 /* as a terminator must be there, the minimum value is ph->h_length */ 00122 if (nbytes > buflen) { 00123 *result = NULL; 00124 ast_mutex_unlock(&__mutex); /* end critical area */ 00125 return ERANGE; /* not enough space in buf!! */ 00126 } 00127 00128 /* There is enough space. Now we need to do a deep copy! */ 00129 /* Allocation in buffer: 00130 from [0] to [(naddr-1) * sizeof(*p)]: 00131 pointers to addresses 00132 at [naddr * sizeof(*p)]: 00133 NULL 00134 from [(naddr+1) * sizeof(*p)] to [(naddr+naliases) * sizeof(*p)] : 00135 pointers to aliases 00136 at [(naddr+naliases+1) * sizeof(*p)]: 00137 NULL 00138 then naddr addresses (fixed length), and naliases aliases (asciiz). 00139 */ 00140 00141 *ret = *ph; /* copy whole structure (not its address!) */ 00142 00143 /* copy addresses */ 00144 q = (char **)buf; /* pointer to pointers area (type: char **) */ 00145 ret->h_addr_list = q; /* update pointer to address list */ 00146 pbuf = buf + ((naddr + naliases + 2) * sizeof(*p)); /* skip that area */ 00147 for (p = ph->h_addr_list; *p != 0; p++) { 00148 memcpy(pbuf, *p, ph->h_length); /* copy address bytes */ 00149 *q++ = pbuf; /* the pointer is the one inside buf... */ 00150 pbuf += ph->h_length; /* advance pbuf */ 00151 } 00152 *q++ = NULL; /* address list terminator */ 00153 00154 /* copy aliases */ 00155 ret->h_aliases = q; /* update pointer to aliases list */ 00156 for (p = ph->h_aliases; *p != 0; p++) { 00157 strcpy(pbuf, *p); /* copy alias strings */ 00158 *q++ = pbuf; /* the pointer is the one inside buf... */ 00159 pbuf += strlen(*p); /* advance pbuf */ 00160 *pbuf++ = 0; /* string terminator */ 00161 } 00162 *q++ = NULL; /* terminator */ 00163 00164 strcpy(pbuf, ph->h_name); /* copy alias strings */ 00165 ret->h_name = pbuf; 00166 pbuf += strlen(ph->h_name); /* advance pbuf */ 00167 *pbuf++ = 0; /* string terminator */ 00168 00169 *result = ret; /* and let *result point to structure */ 00170 00171 } 00172 h_errno = hsave; /* restore h_errno */ 00173 ast_mutex_unlock(&__mutex); /* end critical area */ 00174 00175 return (*result == NULL); /* return 0 on success, non-zero on error */ 00176 }
int test_for_thread_safety | ( | void | ) |
Definition at line 265 of file utils.c.
References ast_mutex_lock(), ast_mutex_unlock(), ast_pthread_create, and test_thread_body().
Referenced by main().
00266 { 00267 ast_mutex_lock(&test_lock2); 00268 ast_mutex_lock(&test_lock); 00269 lock_count += 1; 00270 ast_mutex_lock(&test_lock); 00271 lock_count += 1; 00272 ast_pthread_create(&test_thread, NULL, test_thread_body, NULL); 00273 usleep(100); 00274 if (lock_count != 2) 00275 test_errors++; 00276 ast_mutex_unlock(&test_lock); 00277 lock_count -= 1; 00278 usleep(100); 00279 if (lock_count != 1) 00280 test_errors++; 00281 ast_mutex_unlock(&test_lock); 00282 lock_count -= 1; 00283 if (lock_count != 0) 00284 test_errors++; 00285 ast_mutex_unlock(&test_lock2); 00286 usleep(100); 00287 if (lock_count != 0) 00288 test_errors++; 00289 pthread_join(test_thread, NULL); 00290 return(test_errors); /* return 0 on success. */ 00291 }
static void* test_thread_body | ( | void * | data | ) | [static] |
This is a regression test for recursive mutexes. test_for_thread_safety() will return 0 if recursive mutex locks are working properly, and non-zero if they are not working properly.
Definition at line 242 of file utils.c.
References ast_mutex_lock(), and ast_mutex_unlock().
Referenced by test_for_thread_safety().
00243 { 00244 ast_mutex_lock(&test_lock); 00245 lock_count += 10; 00246 if (lock_count != 10) 00247 test_errors++; 00248 ast_mutex_lock(&test_lock); 00249 lock_count += 10; 00250 if (lock_count != 20) 00251 test_errors++; 00252 ast_mutex_lock(&test_lock2); 00253 ast_mutex_unlock(&test_lock); 00254 lock_count -= 10; 00255 if (lock_count != 10) 00256 test_errors++; 00257 ast_mutex_unlock(&test_lock); 00258 lock_count -= 10; 00259 ast_mutex_unlock(&test_lock2); 00260 if (lock_count != 0) 00261 test_errors++; 00262 return NULL; 00263 }
static struct timeval tvfix | ( | struct timeval | a | ) | [static] |
Definition at line 1107 of file utils.c.
References ast_log(), LOG_WARNING, and ONE_MILLION.
Referenced by ast_tvadd(), and ast_tvsub().
01108 { 01109 if (a.tv_usec >= ONE_MILLION) { 01110 ast_log(LOG_WARNING, "warning too large timestamp %ld.%ld\n", 01111 a.tv_sec, (long int) a.tv_usec); 01112 a.tv_sec += a.tv_usec / ONE_MILLION; 01113 a.tv_usec %= ONE_MILLION; 01114 } else if (a.tv_usec < 0) { 01115 ast_log(LOG_WARNING, "warning negative timestamp %ld.%ld\n", 01116 a.tv_sec, (long int) a.tv_usec); 01117 a.tv_usec = 0; 01118 } 01119 return a; 01120 }
const char __ast_string_field_empty[] = "" |
char base64[64] [static] |
int lock_count = 0 [static] |
int test_errors = 0 [static] |
pthread_t test_thread [static] |