belle_sip_utils.c 15.1 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;
167 168
	if (elem==NULL)  return new_elem;
	if (new_elem==NULL)  return elem;
jehan's avatar
jehan committed
169 170 171 172 173 174
	while (it->next!=NULL) it=belle_sip_list_next(it);
	it->next=new_elem;
	new_elem->prev=it;
	return elem;
}

175 176 177 178 179
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);
}

180 181
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
182 183 184 185 186 187 188
	if (elem!=NULL) {
		new_elem->next=elem;
		elem->prev=new_elem;
	}
	return new_elem;
}

189 190 191 192 193 194 195
belle_sip_list_t * belle_sip_list_last_elem(const belle_sip_list_t *l){
	if (l==NULL) return NULL;
	while(l->next){
		l=l->next;
	}
	return (belle_sip_list_t*)l;
}
jehan's avatar
jehan committed
196

197 198
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
199 200 201 202 203 204 205
	if (it==NULL) return second;
	while(it->next!=NULL) it=belle_sip_list_next(it);
	it->next=second;
	second->prev=it;
	return first;
}

206 207 208
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
209 210 211 212
	if (list==NULL) return NULL;
	while(elem->next!=NULL) {
		tmp = elem;
		elem = elem->next;
213
		belle_sip_free(tmp);
jehan's avatar
jehan committed
214
	}
215
	belle_sip_free(elem);
jehan's avatar
jehan committed
216 217 218
	return NULL;
}

219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234
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;
}


235 236
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
237
	it=belle_sip_list_find(first,data);
Simon Morlat's avatar
Simon Morlat committed
238
	if (it) return belle_sip_list_delete_link(first,it);
jehan's avatar
jehan committed
239 240 241 242 243 244
	else {
		belle_sip_warning("belle_sip_list_remove: no element with %p data was in the list", data);
		return first;
	}
}

245
int belle_sip_list_size(const belle_sip_list_t* first){
jehan's avatar
jehan committed
246 247 248 249 250 251 252 253
	int n=0;
	while(first!=NULL){
		++n;
		first=first->next;
	}
	return n;
}

254
void belle_sip_list_for_each(const belle_sip_list_t* list, void (*func)(void *)){
jehan's avatar
jehan committed
255 256 257 258 259
	for(;list!=NULL;list=list->next){
		func(list->data);
	}
}

260
void belle_sip_list_for_each2(const belle_sip_list_t* list, void (*func)(void *, void *), void *user_data){
jehan's avatar
jehan committed
261 262 263 264 265
	for(;list!=NULL;list=list->next){
		func(list->data,user_data);
	}
}

266 267
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
268 269 270 271 272 273 274 275 276 277 278 279 280 281
	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
282 283
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);
284
	belle_sip_free(elem);
Simon Morlat's avatar
Simon Morlat committed
285 286 287
	return ret;
}

288
belle_sip_list_t* belle_sip_list_find(belle_sip_list_t* list, void *data){
jehan's avatar
jehan committed
289 290 291 292 293 294
	for(;list!=NULL;list=list->next){
		if (list->data==data) return list;
	}
	return NULL;
}

295
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
296 297 298 299 300 301
	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
302 303 304 305 306 307 308 309
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;
}

310
void * belle_sip_list_nth_data(const belle_sip_list_t* list, int index){
jehan's avatar
jehan committed
311 312 313 314 315 316 317 318
	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;
}

319
int belle_sip_list_position(const belle_sip_list_t* list, belle_sip_list_t* elem){
jehan's avatar
jehan committed
320 321 322 323 324 325 326 327
	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;
}

328
int belle_sip_list_index(const belle_sip_list_t* list, void *data){
jehan's avatar
jehan committed
329 330 331 332 333 334 335 336
	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;
}

337 338 339 340
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
341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363
	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;
}

364 365
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
366 367 368 369 370 371
	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{
372
				belle_sip_list_t* nelem=belle_sip_list_new(data);
jehan's avatar
jehan committed
373 374 375 376 377 378 379 380 381 382
				nelem->prev=elem->prev;
				nelem->next=elem;
				elem->prev->next=nelem;
				elem->prev=nelem;
			}
		}
	}
	return list;
}

383 384 385
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
386 387 388 389 390 391
	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
392 393 394 395 396 397 398 399 400 401
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
402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446
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);
    }

447
	return result;
jehan's avatar
jehan committed
448
}
449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467

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
468 469 470 471
char * belle_sip_strdup(const char *s){
	return strdup(s);
}

472 473 474 475 476 477 478 479 480 481 482 483
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
484

485 486 487
}


jehan's avatar
jehan committed
488 489 490 491 492 493 494 495
/**
 * 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
496 497
	lPair->name=name?belle_sip_strdup(name):NULL;
	lPair->value=value?belle_sip_strdup(value):NULL;
jehan's avatar
jehan committed
498 499 500
	return lPair;
}

jehan's avatar
jehan committed
501 502 503 504
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
505 506 507 508 509 510
}

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

511
char* _belle_sip_str_dup_and_unquote_string(const char* quoted_string) {
512 513 514 515 516
	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
517

Simon Morlat's avatar
Simon Morlat committed
518
unsigned int belle_sip_random(void){
jehan's avatar
jehan committed
519
#if  __linux || __APPLE__
Simon Morlat's avatar
Simon Morlat committed
520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535
	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){
536
	static const char *symbols="aAbBcCdDeEfFgGhHiIjJkKlLmMnN0pPqQrRsStTuUvVwWxXyYzZ";
Simon Morlat's avatar
Simon Morlat committed
537 538 539
	unsigned int val;
	int i,j;
	for(i=0,j=0;i<size-1;++i,++j){
540
		if (j%6==0) val=belle_sip_random();
Simon Morlat's avatar
Simon Morlat committed
541
		ret[i]=symbols[val & 31];
542
		val=val>>5;
Simon Morlat's avatar
Simon Morlat committed
543 544 545 546 547
	}
	ret[i]=0;
	return ret;
}

548 549 550 551 552 553 554 555 556 557 558 559 560 561 562
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
563