#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 1227 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.
01229 { 01230 char *result = NULL; 01231 01232 if (__builtin_expect(needed > mgr->space, 0)) { 01233 size_t new_size = mgr->size * 2; 01234 01235 while (new_size < needed) 01236 new_size *= 2; 01237 01238 if (add_string_pool(mgr, new_size)) 01239 return NULL; 01240 } 01241 01242 result = mgr->pool->base + mgr->used; 01243 mgr->used += needed; 01244 mgr->space -= needed; 01245 return result; 01246 }
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 1275 of file utils.c.
References __ast_string_field_index_build_va().
01278 { 01279 va_list ap1, ap2; 01280 01281 va_start(ap1, format); 01282 va_start(ap2, format); /* va_copy does not exist on FreeBSD */ 01283 01284 __ast_string_field_index_build_va(mgr, fields, num_fields, index, format, ap1, ap2); 01285 01286 va_end(ap1); 01287 va_end(ap2); 01288 }
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 1248 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().
01251 { 01252 size_t needed; 01253 01254 needed = vsnprintf(mgr->pool->base + mgr->used, mgr->space, format, ap1) + 1; 01255 01256 va_end(ap1); 01257 01258 if (needed > mgr->space) { 01259 size_t new_size = mgr->size * 2; 01260 01261 while (new_size < needed) 01262 new_size *= 2; 01263 01264 if (add_string_pool(mgr, new_size)) 01265 return; 01266 01267 vsprintf(mgr->pool->base + mgr->used, format, ap2); 01268 } 01269 01270 fields[index] = mgr->pool->base + mgr->used; 01271 mgr->used += needed; 01272 mgr->space -= needed; 01273 }
int __ast_string_field_init | ( | struct ast_string_field_mgr * | mgr, | |
size_t | size, | |||
ast_string_field * | fields, | |||
int | num_fields | |||
) |
Definition at line 1213 of file utils.c.
References add_string_pool().
01215 { 01216 int index; 01217 01218 if (add_string_pool(mgr, size)) 01219 return -1; 01220 01221 for (index = 0; index < num_fields; index++) 01222 fields[index] = __ast_string_field_empty; 01223 01224 return 0; 01225 }
int _ast_asprintf | ( | char ** | ret, | |
const char * | file, | |||
int | lineno, | |||
const char * | func, | |||
const char * | fmt, | |||
... | ||||
) |
Definition at line 1395 of file utils.c.
References MALLOC_FAILURE_MSG, and vasprintf.
01396 { 01397 int res; 01398 va_list ap; 01399 01400 va_start(ap, fmt); 01401 if ((res = vasprintf(ret, fmt, ap)) == -1) { 01402 MALLOC_FAILURE_MSG; 01403 } 01404 va_end(ap); 01405 01406 return res; 01407 }
static int add_string_pool | ( | struct ast_string_field_mgr * | mgr, | |
size_t | size | |||
) | [static] |
Definition at line 1197 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().
01198 { 01199 struct ast_string_field_pool *pool; 01200 01201 if (!(pool = ast_calloc(1, sizeof(*pool) + size))) 01202 return -1; 01203 01204 pool->prev = mgr->pool; 01205 mgr->pool = pool; 01206 mgr->size = size; 01207 mgr->space = size; 01208 mgr->used = 0; 01209 01210 return 0; 01211 }
int ast_atomic_fetchadd_int_slow | ( | volatile int * | p, | |
int | v | |||
) |
Definition at line 1292 of file utils.c.
References ast_mutex_lock(), and ast_mutex_unlock().
01293 { 01294 int ret; 01295 ast_mutex_lock(&fetchadd_m); 01296 ret = *p; 01297 *p += v; 01298 ast_mutex_unlock(&fetchadd_m); 01299 return ret; 01300 }
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 1039 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().
01040 { 01041 va_list ap; 01042 int result; 01043 01044 va_start(ap, fmt); 01045 result = ast_build_string_va(buffer, space, fmt, ap); 01046 va_end(ap); 01047 01048 return result; 01049 }
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 1020 of file utils.c.
Referenced by ast_build_string().
01021 { 01022 int result; 01023 01024 if (!buffer || !*buffer || !space || !*space) 01025 return -1; 01026 01027 result = vsnprintf(*buffer, *space, fmt, ap); 01028 01029 if (result < 0) 01030 return -1; 01031 else if (result > *space) 01032 result = *space; 01033 01034 *buffer += result; 01035 *space -= result; 01036 return 0; 01037 }
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 958 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().
00959 { 00960 /* Try to write string, but wait no more than ms milliseconds 00961 before timing out */ 00962 int res = 0; 00963 struct pollfd fds[1]; 00964 while (len) { 00965 res = write(fd, s, len); 00966 if ((res < 0) && (errno != EAGAIN)) { 00967 return -1; 00968 } 00969 if (res < 0) 00970 res = 0; 00971 len -= res; 00972 s += res; 00973 res = 0; 00974 if (len) { 00975 fds[0].fd = fd; 00976 fds[0].events = POLLOUT; 00977 /* Wait until writable again */ 00978 res = poll(fds, 1, timeoutms); 00979 if (res < 1) 00980 return -1; 00981 } 00982 } 00983 return res; 00984 }
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 1328 of file utils.c.
References ast_realloc, ast_threadstorage::key, and offset.
01330 { 01331 int res; 01332 int offset = (append && (*buf)->len) ? strlen((*buf)->str) : 0; 01333 #if defined(DEBUG_THREADLOCALS) 01334 struct ast_dynamic_str *old_buf = *buf; 01335 #endif /* defined(DEBUG_THREADLOCALS) */ 01336 01337 res = vsnprintf((*buf)->str + offset, (*buf)->len - offset, fmt, ap); 01338 01339 /* Check to see if there was not enough space in the string buffer to prepare 01340 * the string. Also, if a maximum length is present, make sure the current 01341 * length is less than the maximum before increasing the size. */ 01342 if ((res + offset + 1) > (*buf)->len && (max_len ? ((*buf)->len < max_len) : 1)) { 01343 /* Set the new size of the string buffer to be the size needed 01344 * to hold the resulting string (res) plus one byte for the 01345 * terminating '\0'. If this size is greater than the max, set 01346 * the new length to be the maximum allowed. */ 01347 if (max_len) 01348 (*buf)->len = ((res + offset + 1) < max_len) ? (res + offset + 1) : max_len; 01349 else 01350 (*buf)->len = res + offset + 1; 01351 01352 if (!(*buf = ast_realloc(*buf, (*buf)->len + sizeof(*(*buf))))) 01353 return AST_DYNSTR_BUILD_FAILED; 01354 01355 if (append) 01356 (*buf)->str[offset] = '\0'; 01357 01358 if (ts) { 01359 pthread_setspecific(ts->key, *buf); 01360 #if defined(DEBUG_THREADLOCALS) 01361 __ast_threadstorage_object_replace(old_buf, *buf, (*buf)->len + sizeof(*(*buf))); 01362 #endif /* defined(DEBUG_THREADLOCALS) */ 01363 } 01364 01365 /* va_end() and va_start() must be done before calling 01366 * vsnprintf() again. */ 01367 return AST_DYNSTR_BUILD_RETRY; 01368 } 01369 01370 return res; 01371 }
void ast_enable_packet_fragmentation | ( | int | sock | ) |
Definition at line 1373 of file utils.c.
References ast_log(), and LOG_WARNING.
Referenced by ast_netsock_bindaddr().
01374 { 01375 #if defined(HAVE_IP_MTU_DISCOVER) 01376 int val = IP_PMTUDISC_DONT; 01377 01378 if (setsockopt(sock, IPPROTO_IP, IP_MTU_DISCOVER, &val, sizeof(val))) 01379 ast_log(LOG_WARNING, "Unable to disable PMTU discovery. Large UDP packets may fail to be delivered when sent from this socket.\n"); 01380 #endif /* HAVE_IP_MTU_DISCOVER */ 01381 }
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 1068 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().
01069 { 01070 if (ast_strlen_zero(s)) 01071 return 0; 01072 01073 /* Determine if this is a false value */ 01074 if (!strcasecmp(s, "no") || 01075 !strcasecmp(s, "false") || 01076 !strcasecmp(s, "n") || 01077 !strcasecmp(s, "f") || 01078 !strcasecmp(s, "0") || 01079 !strcasecmp(s, "off")) 01080 return -1; 01081 01082 return 0; 01083 }
int ast_get_time_t | ( | const char * | src, | |
time_t * | dst, | |||
time_t | _default, | |||
int * | consumed | |||
) |
get values from config variables.
Definition at line 1305 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().
01306 { 01307 long t; 01308 int scanned; 01309 01310 if (dst == NULL) 01311 return -1; 01312 01313 *dst = _default; 01314 01315 if (ast_strlen_zero(src)) 01316 return -1; 01317 01318 /* only integer at the moment, but one day we could accept more formats */ 01319 if (sscanf(src, "%ld%n", &t, &scanned) == 1) { 01320 *dst = t; 01321 if (consumed) 01322 *consumed = scanned; 01323 return 0; 01324 } else 01325 return -1; 01326 }
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(), 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_address_from_contact(), 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 1176 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().
01177 { 01178 int x, ofs = 0; 01179 const char *src; 01180 01181 /* Join words into a string */ 01182 if (!s) 01183 return; 01184 for (x = 0; ofs < len && w[x]; x++) { 01185 if (x > 0) 01186 s[ofs++] = ' '; 01187 for (src = w[x]; *src && ofs < len; src++) 01188 s[ofs++] = *src; 01189 } 01190 if (ofs == len) 01191 ofs--; 01192 s[ofs] = '\0'; 01193 }
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 1150 of file utils.c.
Referenced by handle_context_add_extension(), handle_context_add_extension_deprecated(), and pbx_load_config().
01151 { 01152 char *dataPut = start; 01153 int inEscape = 0; 01154 int inQuotes = 0; 01155 01156 for (; *start; start++) { 01157 if (inEscape) { 01158 *dataPut++ = *start; /* Always goes verbatim */ 01159 inEscape = 0; 01160 } else { 01161 if (*start == '\\') { 01162 inEscape = 1; /* Do not copy \ into the data */ 01163 } else if (*start == '\'') { 01164 inQuotes = 1 - inQuotes; /* Do not copy ' into the data */ 01165 } else { 01166 /* Replace , with |, unless in quotes */ 01167 *dataPut++ = inQuotes ? *start : ((*start == find) ? replace_with : *start); 01168 } 01169 } 01170 } 01171 if (start != dataPut) 01172 *dataPut = 0; 01173 return dataPut; 01174 }
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 904 of file utils.c.
References asprintf, ast_log(), ast_malloc, AST_STACKSIZE, dummy_start(), errno, LOG_WARNING, and pthread_create.
00907 { 00908 #if !defined(LOW_MEMORY) 00909 struct thr_arg *a; 00910 #endif 00911 00912 if (!attr) { 00913 attr = alloca(sizeof(*attr)); 00914 pthread_attr_init(attr); 00915 } 00916 00917 #ifdef __linux__ 00918 /* On Linux, pthread_attr_init() defaults to PTHREAD_EXPLICIT_SCHED, 00919 which is kind of useless. Change this here to 00920 PTHREAD_INHERIT_SCHED; that way the -p option to set realtime 00921 priority will propagate down to new threads by default. 00922 This does mean that callers cannot set a different priority using 00923 PTHREAD_EXPLICIT_SCHED in the attr argument; instead they must set 00924 the priority afterwards with pthread_setschedparam(). */ 00925 if ((errno = pthread_attr_setinheritsched(attr, PTHREAD_INHERIT_SCHED))) 00926 ast_log(LOG_WARNING, "pthread_attr_setinheritsched: %s\n", strerror(errno)); 00927 #endif 00928 00929 if (!stacksize) 00930 stacksize = AST_STACKSIZE; 00931 00932 if ((errno = pthread_attr_setstacksize(attr, stacksize ? stacksize : AST_STACKSIZE))) 00933 ast_log(LOG_WARNING, "pthread_attr_setstacksize: %s\n", strerror(errno)); 00934 00935 #if !defined(LOW_MEMORY) 00936 if ((a = ast_malloc(sizeof(*a)))) { 00937 a->start_routine = start_routine; 00938 a->data = data; 00939 start_routine = dummy_start; 00940 asprintf(&a->name, "%-20s started at [%5d] %s %s()", 00941 start_fn, line, file, caller); 00942 data = a; 00943 } 00944 #endif /* !LOW_MEMORY */ 00945 00946 return pthread_create(thread, attr, start_routine, data); /* We're in ast_pthread_create, so it's okay */ 00947 }
long int ast_random | ( | void | ) |
Definition at line 1140 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(), 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(), try_firmware(), and zt_new().
01141 { 01142 long int res; 01143 ast_mutex_lock(&randomlock); 01144 res = random(); 01145 ast_mutex_unlock(&randomlock); 01146 return res; 01147 }
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 986 of file utils.c.
Referenced by ast_register_file_version(), iftime(), parse_cookies(), and parse_dial_string().
00987 { 00988 char *e; 00989 char *q; 00990 00991 s = ast_strip(s); 00992 if ((q = strchr(beg_quotes, *s)) && *q != '\0') { 00993 e = s + strlen(s) - 1; 00994 if (*e == *(end_quotes + (q - beg_quotes))) { 00995 s++; 00996 *e = '\0'; 00997 } 00998 } 00999 01000 return s; 01001 }
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 1051 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_modules(), 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_zap(), 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().
01052 { 01053 if (ast_strlen_zero(s)) 01054 return 0; 01055 01056 /* Determine if this is a true value */ 01057 if (!strcasecmp(s, "yes") || 01058 !strcasecmp(s, "true") || 01059 !strcasecmp(s, "y") || 01060 !strcasecmp(s, "t") || 01061 !strcasecmp(s, "1") || 01062 !strcasecmp(s, "on")) 01063 return -1; 01064 01065 return 0; 01066 }
struct timeval ast_tvadd | ( | struct timeval | a, | |
struct timeval | b | |||
) |
Definition at line 1105 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().
01106 { 01107 /* consistency checks to guarantee usec in 0..999999 */ 01108 a = tvfix(a); 01109 b = tvfix(b); 01110 a.tv_sec += b.tv_sec; 01111 a.tv_usec += b.tv_usec; 01112 if (a.tv_usec >= ONE_MILLION) { 01113 a.tv_sec++; 01114 a.tv_usec -= ONE_MILLION; 01115 } 01116 return a; 01117 }
struct timeval ast_tvsub | ( | struct timeval | a, | |
struct timeval | b | |||
) |
Returns the difference of two timevals a - b.
Definition at line 1119 of file utils.c.
References ONE_MILLION, and tvfix().
Referenced by ast_channel_bridge(), ast_sched_dump(), ast_translate(), calc_rxstamp(), and calc_timestamp().
01120 { 01121 /* consistency checks to guarantee usec in 0..999999 */ 01122 a = tvfix(a); 01123 b = tvfix(b); 01124 a.tv_sec -= b.tv_sec; 01125 a.tv_usec -= b.tv_usec; 01126 if (a.tv_usec < 0) { 01127 a.tv_sec-- ; 01128 a.tv_usec += ONE_MILLION; 01129 } 01130 return a; 01131 }
char* ast_unescape_semicolon | ( | char * | s | ) |
Strip backslash for "escaped" semicolons. s The string to be stripped (will be modified).
Definition at line 1003 of file utils.c.
Referenced by sip_notify().
01004 { 01005 char *e; 01006 char *work = s; 01007 01008 while ((e = strchr(work, ';'))) { 01009 if ((e > work) && (*(e-1) == '\\')) { 01010 memmove(e - 1, e, strlen(e) + 1); 01011 work = e; 01012 } else { 01013 work = e + 1; 01014 } 01015 } 01016 01017 return s; 01018 }
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 1383 of file utils.c.
References ast_cli_register_multiple(), and base64_init().
Referenced by main().
01384 { 01385 base64_init(); 01386 #ifdef DEBUG_THREADS 01387 #if !defined(LOW_MEMORY) 01388 ast_cli_register_multiple(utils_cli, sizeof(utils_cli) / sizeof(utils_cli[0])); 01389 #endif 01390 #endif 01391 return 0; 01392 }
int ast_wait_for_input | ( | int | fd, | |
int | ms | |||
) |
Definition at line 949 of file utils.c.
References poll(), POLLIN, and POLLPRI.
Referenced by action_waitevent(), ast_moh_destroy_one(), http_root(), and main().
00950 { 00951 struct pollfd pfd[1]; 00952 memset(pfd, 0, sizeof(pfd)); 00953 pfd[0].fd = fd; 00954 pfd[0].events = POLLIN|POLLPRI; 00955 return poll(pfd, 1, ms); 00956 }
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 860 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().
00861 { 00862 void *ret; 00863 struct thr_arg a = *((struct thr_arg *) data); /* make a local copy */ 00864 #ifdef DEBUG_THREADS 00865 struct thr_lock_info *lock_info; 00866 pthread_mutexattr_t mutex_attr; 00867 #endif 00868 00869 /* note that even though data->name is a pointer to allocated memory, 00870 we are not freeing it here because ast_register_thread is going to 00871 keep a copy of the pointer and then ast_unregister_thread will 00872 free the memory 00873 */ 00874 free(data); 00875 ast_register_thread(a.name); 00876 pthread_cleanup_push(ast_unregister_thread, (void *) pthread_self()); 00877 00878 #ifdef DEBUG_THREADS 00879 if (!(lock_info = ast_threadstorage_get(&thread_lock_info, sizeof(*lock_info)))) 00880 return NULL; 00881 00882 lock_info->thread_id = pthread_self(); 00883 lock_info->thread_name = strdup(a.name); 00884 00885 pthread_mutexattr_init(&mutex_attr); 00886 pthread_mutexattr_settype(&mutex_attr, AST_MUTEX_KIND); 00887 pthread_mutex_init(&lock_info->lock, &mutex_attr); 00888 pthread_mutexattr_destroy(&mutex_attr); 00889 00890 pthread_mutex_lock(&lock_infos_lock.mutex); /* Intentionally not the wrapper */ 00891 AST_LIST_INSERT_TAIL(&lock_infos, lock_info, entry); 00892 pthread_mutex_unlock(&lock_infos_lock.mutex); /* Intentionally not the wrapper */ 00893 #endif /* DEBUG_THREADS */ 00894 00895 ret = a.start_routine(a.data); 00896 00897 pthread_cleanup_pop(1); 00898 00899 return ret; 00900 }
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 1090 of file utils.c.
References ast_log(), LOG_WARNING, and ONE_MILLION.
Referenced by ast_tvadd(), and ast_tvsub().
01091 { 01092 if (a.tv_usec >= ONE_MILLION) { 01093 ast_log(LOG_WARNING, "warning too large timestamp %ld.%ld\n", 01094 a.tv_sec, (long int) a.tv_usec); 01095 a.tv_sec += a.tv_usec / ONE_MILLION; 01096 a.tv_usec %= ONE_MILLION; 01097 } else if (a.tv_usec < 0) { 01098 ast_log(LOG_WARNING, "warning negative timestamp %ld.%ld\n", 01099 a.tv_sec, (long int) a.tv_usec); 01100 a.tv_usec = 0; 01101 } 01102 return a; 01103 }
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] |