belle_sip_utils.c 14.9 KB
Newer Older
jehan's avatar
jehan committed
1 2 3
/*
	belle-sip - SIP (RFC3261) library.
    Copyright (C) 2010  Belledonne Communications SARL
jehan's avatar
jehan committed
4

jehan's avatar
jehan committed
5 6 7 8 9 10 11 12 13 14 15 16 17
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
18 19

#include "belle_sip_internal.h"
jehan's avatar
jehan committed
20

21
#include <time.h>
jehan's avatar
jehan committed
22
#include "clock_gettime.h" /*for apple*/
jehan's avatar
jehan committed
23 24 25 26 27 28 29 30 31 32 33 34 35 36

static FILE *__log_file=0;

/**
 *@param file a FILE pointer where to output the belle logs.
 *
**/
void belle_sip_set_log_file(FILE *file)
{
        __log_file=file;
}

static void __belle_sip_logv_out(belle_sip_log_level lev, const char *fmt, va_list args);

37
belle_sip_log_function_t belle_sip_logv_out=__belle_sip_logv_out;
jehan's avatar
jehan committed
38 39 40 41 42

/**
 *@param func: your logging function, compatible with the OrtpLogFunc prototype.
 *
**/
43
void belle_sip_set_log_handler(belle_sip_log_function_t func){
jehan's avatar
jehan committed
44 45 46 47
        belle_sip_logv_out=func;
}


Simon Morlat's avatar
Simon Morlat committed
48
unsigned int __belle_sip_log_mask=BELLE_SIP_LOG_WARNING|BELLE_SIP_LOG_ERROR|BELLE_SIP_LOG_FATAL;
jehan's avatar
jehan committed
49 50

/**
Simon Morlat's avatar
Simon Morlat committed
51 52
 * @ param level: either BELLE_SIP_LOG_DEBUG, BELLE_SIP_LOG_MESSAGE, BELLE_SIP_LOG_WARNING, BELLE_SIP_LOG_ERROR
 * BELLE_SIP_LOG_FATAL .
jehan's avatar
jehan committed
53
**/
Simon Morlat's avatar
Simon Morlat committed
54 55
void belle_sip_set_log_level(int level){
        __belle_sip_log_mask=(level<<1)-1;
jehan's avatar
jehan committed
56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130
}

char * belle_sip_strdup_vprintf(const char *fmt, va_list ap)
{
        /* Guess we need no more than 100 bytes. */
        int n, size = 200;
        char *p,*np;
#ifndef WIN32
        va_list cap;/*copy of our argument list: a va_list cannot be re-used (SIGSEGV on linux 64 bits)*/
#endif
        if ((p = (char *) malloc (size)) == NULL)
                return NULL;
        while (1)
        {
                /* Try to print in the allocated space. */
#ifndef WIN32
                va_copy(cap,ap);
                n = vsnprintf (p, size, fmt, cap);
                va_end(cap);
#else
                /*this works on 32 bits, luckily*/
                n = vsnprintf (p, size, fmt, ap);
#endif
                /* If that worked, return the string. */
                if (n > -1 && n < size)
                        return p;
                //printf("Reallocing space.\n");
                /* Else try again with more space. */
                if (n > -1)     /* glibc 2.1 */
                        size = n + 1;   /* precisely what is needed */
                else            /* glibc 2.0 */
                        size *= 2;      /* twice the old size */
                if ((np = (char *) realloc (p, size)) == NULL)
                  {
                    free(p);
                    return NULL;
                  }
                else
                  {
                    p = np;
                  }
        }
}

char *belle_sip_strdup_printf(const char *fmt,...){
        char *ret;
        va_list args;
        va_start (args, fmt);
        ret=belle_sip_strdup_vprintf(fmt, args);
        va_end (args);
        return ret;
}

#if     defined(WIN32) || defined(_WIN32_WCE)
#define ENDLINE "\r\n"
#else
#define ENDLINE "\n"
#endif

#if     defined(WIN32) || defined(_WIN32_WCE)
void belle_sip_logv(int level, const char *fmt, va_list args)
{
        if (belle_sip_logv_out!=NULL && belle_sip_log_level_enabled(level))
                belle_sip_logv_out(level,fmt,args);
#if !defined(_WIN32_WCE)
        if ((level)==BELLE_SIP_FATAL) abort();
#endif
}
#endif

static void __belle_sip_logv_out(belle_sip_log_level lev, const char *fmt, va_list args){
        const char *lname="undef";
        char *msg;
        if (__log_file==NULL) __log_file=stderr;
        switch(lev){
Simon Morlat's avatar
Simon Morlat committed
131
                case BELLE_SIP_LOG_DEBUG:
jehan's avatar
jehan committed
132 133
                        lname="debug";
                        break;
Simon Morlat's avatar
Simon Morlat committed
134
                case BELLE_SIP_LOG_MESSAGE:
jehan's avatar
jehan committed
135 136
                        lname="message";
                        break;
Simon Morlat's avatar
Simon Morlat committed
137
                case BELLE_SIP_LOG_WARNING:
jehan's avatar
jehan committed
138 139
                        lname="warning";
                        break;
Simon Morlat's avatar
Simon Morlat committed
140
                case BELLE_SIP_LOG_ERROR:
jehan's avatar
jehan committed
141 142
                        lname="error";
                        break;
Simon Morlat's avatar
Simon Morlat committed
143
                case BELLE_SIP_LOG_FATAL:
jehan's avatar
jehan committed
144 145 146 147 148 149 150 151 152 153 154 155 156 157 158
                        lname="fatal";
                        break;
                default:
                        belle_sip_fatal("Bad level !");
        }
        msg=belle_sip_strdup_vprintf(fmt,args);
#if defined(_MSC_VER) && !defined(_WIN32_WCE)
        OutputDebugString(msg);
        OutputDebugString("\r\n");
#endif
        fprintf(__log_file,"belle-sip-%s-%s" ENDLINE,lname,msg);
        fflush(__log_file);
        free(msg);
}

159
belle_sip_list_t* belle_sip_list_new(void *data){
160
	belle_sip_list_t* new_elem=belle_sip_new0(belle_sip_list_t);
jehan's avatar
jehan committed
161 162 163 164
	new_elem->data=data;
	return new_elem;
}

165
belle_sip_list_t*  belle_sip_list_append_link(belle_sip_list_t* elem,belle_sip_list_t *new_elem){
166
	belle_sip_list_t* it=elem;
jehan's avatar
jehan committed
167 168 169 170 171 172 173
	if (elem==NULL) return new_elem;
	while (it->next!=NULL) it=belle_sip_list_next(it);
	it->next=new_elem;
	new_elem->prev=it;
	return elem;
}

174 175 176 177 178
belle_sip_list_t*  belle_sip_list_append(belle_sip_list_t* elem, void * data){
	belle_sip_list_t* new_elem=belle_sip_list_new(data);
	return belle_sip_list_append_link(elem,new_elem);
}

179 180
belle_sip_list_t*  belle_sip_list_prepend(belle_sip_list_t* elem, void *data){
	belle_sip_list_t* new_elem=belle_sip_list_new(data);
jehan's avatar
jehan committed
181 182 183 184 185 186 187 188
	if (elem!=NULL) {
		new_elem->next=elem;
		elem->prev=new_elem;
	}
	return new_elem;
}


189 190
belle_sip_list_t*  belle_sip_list_concat(belle_sip_list_t* first, belle_sip_list_t* second){
	belle_sip_list_t* it=first;
jehan's avatar
jehan committed
191 192 193 194 195 196 197
	if (it==NULL) return second;
	while(it->next!=NULL) it=belle_sip_list_next(it);
	it->next=second;
	second->prev=it;
	return first;
}

198 199 200
belle_sip_list_t*  belle_sip_list_free(belle_sip_list_t* list){
	belle_sip_list_t* elem = list;
	belle_sip_list_t* tmp;
jehan's avatar
jehan committed
201 202 203 204
	if (list==NULL) return NULL;
	while(elem->next!=NULL) {
		tmp = elem;
		elem = elem->next;
205
		belle_sip_free(tmp);
jehan's avatar
jehan committed
206
	}
207
	belle_sip_free(elem);
jehan's avatar
jehan committed
208 209 210
	return NULL;
}

211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226
belle_sip_list_t * belle_sip_list_free_with_data(belle_sip_list_t *list, void (*freefunc)(void*)){
	belle_sip_list_t* elem = list;
	belle_sip_list_t* tmp;
	if (list==NULL) return NULL;
	while(elem->next!=NULL) {
		tmp = elem;
		elem = elem->next;
		freefunc(tmp->data);
		belle_sip_free(tmp);
	}
	freefunc(elem->data);
	belle_sip_free(elem);
	return NULL;
}


227 228
belle_sip_list_t*  belle_sip_list_remove(belle_sip_list_t* first, void *data){
	belle_sip_list_t* it;
jehan's avatar
jehan committed
229
	it=belle_sip_list_find(first,data);
Simon Morlat's avatar
Simon Morlat committed
230
	if (it) return belle_sip_list_delete_link(first,it);
jehan's avatar
jehan committed
231 232 233 234 235 236
	else {
		belle_sip_warning("belle_sip_list_remove: no element with %p data was in the list", data);
		return first;
	}
}

237
int belle_sip_list_size(const belle_sip_list_t* first){
jehan's avatar
jehan committed
238 239 240 241 242 243 244 245
	int n=0;
	while(first!=NULL){
		++n;
		first=first->next;
	}
	return n;
}

246
void belle_sip_list_for_each(const belle_sip_list_t* list, void (*func)(void *)){
jehan's avatar
jehan committed
247 248 249 250 251
	for(;list!=NULL;list=list->next){
		func(list->data);
	}
}

252
void belle_sip_list_for_each2(const belle_sip_list_t* list, void (*func)(void *, void *), void *user_data){
jehan's avatar
jehan committed
253 254 255 256 257
	for(;list!=NULL;list=list->next){
		func(list->data,user_data);
	}
}

258 259
belle_sip_list_t* belle_sip_list_remove_link(belle_sip_list_t* list, belle_sip_list_t* elem){
	belle_sip_list_t* ret;
jehan's avatar
jehan committed
260 261 262 263 264 265 266 267 268 269 270 271 272 273
	if (elem==list){
		ret=elem->next;
		elem->prev=NULL;
		elem->next=NULL;
		if (ret!=NULL) ret->prev=NULL;
		return ret;
	}
	elem->prev->next=elem->next;
	if (elem->next!=NULL) elem->next->prev=elem->prev;
	elem->next=NULL;
	elem->prev=NULL;
	return list;
}

Simon Morlat's avatar
Simon Morlat committed
274 275
belle_sip_list_t * belle_sip_list_delete_link(belle_sip_list_t* list, belle_sip_list_t* elem){
	belle_sip_list_t *ret=belle_sip_list_remove_link(list,elem);
276
	belle_sip_free(elem);
Simon Morlat's avatar
Simon Morlat committed
277 278 279
	return ret;
}

280
belle_sip_list_t* belle_sip_list_find(belle_sip_list_t* list, void *data){
jehan's avatar
jehan committed
281 282 283 284 285 286
	for(;list!=NULL;list=list->next){
		if (list->data==data) return list;
	}
	return NULL;
}

287
belle_sip_list_t* belle_sip_list_find_custom(belle_sip_list_t* list, belle_sip_compare_func compare_func, const void *user_data){
jehan's avatar
jehan committed
288 289 290 291 292 293
	for(;list!=NULL;list=list->next){
		if (compare_func(list->data,user_data)==0) return list;
	}
	return NULL;
}

Simon Morlat's avatar
Simon Morlat committed
294 295 296 297 298 299 300 301
belle_sip_list_t *belle_sip_list_delete_custom(belle_sip_list_t *list, belle_sip_compare_func compare_func, const void *user_data){
	belle_sip_list_t *elem=belle_sip_list_find_custom(list,compare_func,user_data);
	if (elem!=NULL){
		list=belle_sip_list_delete_link(list,elem);
	}
	return list;
}

302
void * belle_sip_list_nth_data(const belle_sip_list_t* list, int index){
jehan's avatar
jehan committed
303 304 305 306 307 308 309 310
	int i;
	for(i=0;list!=NULL;list=list->next,++i){
		if (i==index) return list->data;
	}
	belle_sip_error("belle_sip_list_nth_data: no such index in list.");
	return NULL;
}

311
int belle_sip_list_position(const belle_sip_list_t* list, belle_sip_list_t* elem){
jehan's avatar
jehan committed
312 313 314 315 316 317 318 319
	int i;
	for(i=0;list!=NULL;list=list->next,++i){
		if (elem==list) return i;
	}
	belle_sip_error("belle_sip_list_position: no such element in list.");
	return -1;
}

320
int belle_sip_list_index(const belle_sip_list_t* list, void *data){
jehan's avatar
jehan committed
321 322 323 324 325 326 327 328
	int i;
	for(i=0;list!=NULL;list=list->next,++i){
		if (data==list->data) return i;
	}
	belle_sip_error("belle_sip_list_index: no such element in list.");
	return -1;
}

329 330 331 332
belle_sip_list_t* belle_sip_list_insert_sorted(belle_sip_list_t* list, void *data, int (*compare_func)(const void *, const void*)){
	belle_sip_list_t* it,*previt=NULL;
	belle_sip_list_t* nelem;
	belle_sip_list_t* ret=list;
jehan's avatar
jehan committed
333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355
	if (list==NULL) return belle_sip_list_append(list,data);
	else{
		nelem=belle_sip_list_new(data);
		for(it=list;it!=NULL;it=it->next){
			previt=it;
			if (compare_func(data,it->data)<=0){
				nelem->prev=it->prev;
				nelem->next=it;
				if (it->prev!=NULL)
					it->prev->next=nelem;
				else{
					ret=nelem;
				}
				it->prev=nelem;
				return ret;
			}
		}
		previt->next=nelem;
		nelem->prev=previt;
	}
	return ret;
}

356 357
belle_sip_list_t* belle_sip_list_insert(belle_sip_list_t* list, belle_sip_list_t* before, void *data){
	belle_sip_list_t* elem;
jehan's avatar
jehan committed
358 359 360 361 362 363
	if (list==NULL || before==NULL) return belle_sip_list_append(list,data);
	for(elem=list;elem!=NULL;elem=belle_sip_list_next(elem)){
		if (elem==before){
			if (elem->prev==NULL)
				return belle_sip_list_prepend(list,data);
			else{
364
				belle_sip_list_t* nelem=belle_sip_list_new(data);
jehan's avatar
jehan committed
365 366 367 368 369 370 371 372 373 374
				nelem->prev=elem->prev;
				nelem->next=elem;
				elem->prev->next=nelem;
				elem->prev=nelem;
			}
		}
	}
	return list;
}

375 376 377
belle_sip_list_t* belle_sip_list_copy(const belle_sip_list_t* list){
	belle_sip_list_t* copy=NULL;
	const belle_sip_list_t* iter;
jehan's avatar
jehan committed
378 379 380 381 382 383
	for(iter=list;iter!=NULL;iter=belle_sip_list_next(iter)){
		copy=belle_sip_list_append(copy,iter->data);
	}
	return copy;
}

jehan's avatar
jehan committed
384 385 386 387 388 389 390 391 392 393
belle_sip_list_t* belle_sip_list_copy_with_data(const belle_sip_list_t* list, void* (*copyfunc)(void*)){
	belle_sip_list_t* copy=NULL;
	const belle_sip_list_t* iter;
	for(iter=list;iter!=NULL;iter=belle_sip_list_next(iter)){
		copy=belle_sip_list_append(copy,copyfunc(iter->data));
	}
	return copy;
}


jehan's avatar
jehan committed
394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438
char * belle_sip_concat (const char *str, ...) {
  va_list ap;
  size_t allocated = 100;
  char *result = (char *) malloc (allocated);

  if (result != NULL)
    {
      char *newp;
      char *wp;
      const char* s;

      va_start (ap, str);

      wp = result;
      for (s = str; s != NULL; s = va_arg (ap, const char *)) {
          size_t len = strlen (s);

          /* Resize the allocated memory if necessary.  */
          if (wp + len + 1 > result + allocated)
            {
              allocated = (allocated + len) * 2;
              newp = (char *) realloc (result, allocated);
              if (newp == NULL)
                {
                  free (result);
                  return NULL;
                }
              wp = newp + (wp - result);
              result = newp;
            }
          memcpy (wp, s, len);
          wp +=len;
        }

      /* Terminate the result string.  */
      *wp++ = '\0';

      /* Resize memory to the optimal size.  */
      newp = realloc (result, wp - result);
      if (newp != NULL)
        result = newp;

      va_end (ap);
    }

439
	return result;
jehan's avatar
jehan committed
440
}
441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459

void *belle_sip_malloc(size_t size){
	return malloc(size);
}

void *belle_sip_malloc0(size_t size){
	void *p=malloc(size);
	memset(p,0,size);
	return p;
}

void *belle_sip_realloc(void *ptr, size_t size){
	return realloc(ptr,size);
}

void belle_sip_free(void *ptr){
	free(ptr);
}

Simon Morlat's avatar
Simon Morlat committed
460 461 462 463
char * belle_sip_strdup(const char *s){
	return strdup(s);
}

464 465 466 467 468 469 470 471 472 473 474 475
uint64_t belle_sip_time_ms(void){
	struct timespec ts;
	static int clock_id=CLOCK_MONOTONIC;
	if (clock_gettime(clock_id,&ts)==-1){
		belle_sip_error("clock_gettime() error for clock_id=%i: %s",clock_id,strerror(errno));
		if (clock_id==CLOCK_MONOTONIC){
			clock_id=CLOCK_REALTIME;
			return belle_sip_time_ms();
		}
		return 0;
	}
	return (ts.tv_sec*1000LL) + (ts.tv_nsec/1000000LL);
jehan's avatar
jehan committed
476

477 478 479
}


jehan's avatar
jehan committed
480 481 482 483 484 485 486 487
/**
 * parser parameter pair
 */



belle_sip_param_pair_t* belle_sip_param_pair_new(const char* name,const char* value) {
	belle_sip_param_pair_t* lPair = (belle_sip_param_pair_t*)belle_sip_new0(belle_sip_param_pair_t);
jehan's avatar
jehan committed
488 489
	lPair->name=name?belle_sip_strdup(name):NULL;
	lPair->value=value?belle_sip_strdup(value):NULL;
jehan's avatar
jehan committed
490 491 492
	return lPair;
}

jehan's avatar
jehan committed
493 494 495 496
void belle_sip_param_pair_destroy(belle_sip_param_pair_t*  pair) {
	if (pair->name) belle_sip_free(pair->name);
	if (pair->value) belle_sip_free(pair->value);
	belle_sip_free (pair);
jehan's avatar
jehan committed
497 498 499 500 501 502
}

int belle_sip_param_pair_comp_func(const belle_sip_param_pair_t *a, const char*b) {
	return strcmp(a->name,b);
}

503
char* _belle_sip_str_dup_and_unquote_string(const char* quoted_string) {
504 505 506 507 508
	size_t value_size = strlen(quoted_string);
	char* unquoted_string = belle_sip_malloc0(value_size-2+1);
	strncpy(unquoted_string,quoted_string+1,value_size-2);
	return unquoted_string;
}
jehan's avatar
jehan committed
509

Simon Morlat's avatar
Simon Morlat committed
510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527
unsigned int belle_sip_random(void){
#ifdef __linux
	static int fd=-1;
	if (fd==-1) fd=open("/dev/urandom",O_RDONLY);
	if (fd!=-1){
		unsigned int tmp;
		if (read(fd,&tmp,4)!=4){
			belle_sip_error("Reading /dev/urandom failed.");
		}else return tmp;
	}else belle_sip_error("Could not open /dev/urandom");
#endif
	return (unsigned int) random();
}

/**
 * Write a random text token of supplied size.
**/
char * belle_sip_random_token(char *ret, size_t size){
528
	static const char *symbols="aAbBcCdDeEfFgGhHiIjJkKlLmMnN0pPqQrRsStTuUvVwWxXyYzZ";
Simon Morlat's avatar
Simon Morlat committed
529 530 531
	unsigned int val;
	int i,j;
	for(i=0,j=0;i<size-1;++i,++j){
532
		if (j%6==0) val=belle_sip_random();
Simon Morlat's avatar
Simon Morlat committed
533
		ret[i]=symbols[val & 31];
534
		val=val>>5;
Simon Morlat's avatar
Simon Morlat committed
535 536 537 538 539 540
	}
	ret[i]=0;
	return ret;
}


541 542 543 544 545 546 547 548 549 550 551 552 553 554 555
void belle_sip_util_copy_headers(belle_sip_message_t *orig, belle_sip_message_t *dest, const char*header, int multiple){
	const belle_sip_list_t *elem;
	elem=belle_sip_message_get_headers(orig,header);
	for (;elem!=NULL;elem=elem->next){
		belle_sip_header_t *ref_header=(belle_sip_header_t*)elem->data;
		if (ref_header){
			ref_header=(belle_sip_header_t*)belle_sip_object_clone((belle_sip_object_t*)ref_header);
			if (!multiple){
				belle_sip_message_set_header(dest,ref_header);
				break;
			}else
				belle_sip_message_add_header(dest,ref_header);
		}
	}
}
jehan's avatar
jehan committed
556