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00025 #include <time.h>
00026 #include <string.h>
00027 #include <stdio.h>
00028 #include <stdlib.h>
00029 #include <unistd.h>
00030 #include <math.h>
00031 #include <ctype.h>
00032
00033 #include "asterisk.h"
00034
00035 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 7221 $")
00036
00037 #include "asterisk/ulaw.h"
00038 #include "asterisk/alaw.h"
00039 #include "asterisk/frame.h"
00040 #include "asterisk/channel.h"
00041 #include "asterisk/callerid.h"
00042 #include "asterisk/logger.h"
00043 #include "asterisk/fskmodem.h"
00044 #include "asterisk/utils.h"
00045
00046 struct callerid_state {
00047 fsk_data fskd;
00048 char rawdata[256];
00049 short oldstuff[160];
00050 int oldlen;
00051 int pos;
00052 int type;
00053 int cksum;
00054 char name[64];
00055 char number[64];
00056 int flags;
00057 int sawflag;
00058 int len;
00059 };
00060
00061
00062 float cid_dr[4], cid_di[4];
00063 float clidsb = 8000.0 / 1200.0;
00064 float sasdr, sasdi;
00065 float casdr1, casdi1, casdr2, casdi2;
00066
00067 #define CALLERID_SPACE 2200.0
00068 #define CALLERID_MARK 1200.0
00069 #define SAS_FREQ 440.0
00070 #define CAS_FREQ1 2130.0
00071 #define CAS_FREQ2 2750.0
00072
00073 #define AST_CALLERID_UNKNOWN "<unknown>"
00074
00075 static inline void gen_tones(unsigned char *buf, int len, int codec, float ddr1, float ddi1, float ddr2, float ddi2, float *cr1, float *ci1, float *cr2, float *ci2)
00076 {
00077 int x;
00078 float t;
00079 for (x=0;x<len;x++) {
00080 t = *cr1 * ddr1 - *ci1 * ddi1;
00081 *ci1 = *cr1 * ddi1 + *ci1 * ddr1;
00082 *cr1 = t;
00083 t = 2.0 - (*cr1 * *cr1 + *ci1 * *ci1);
00084 *cr1 *= t;
00085 *ci1 *= t;
00086
00087 t = *cr2 * ddr2 - *ci2 * ddi2;
00088 *ci2 = *cr2 * ddi2 + *ci2 * ddr2;
00089 *cr2 = t;
00090 t = 2.0 - (*cr2 * *cr2 + *ci2 * *ci2);
00091 *cr2 *= t;
00092 *ci2 *= t;
00093 buf[x] = AST_LIN2X((*cr1 + *cr2) * 2048.0);
00094 }
00095 }
00096
00097 static inline void gen_tone(unsigned char *buf, int len, int codec, float ddr1, float ddi1, float *cr1, float *ci1)
00098 {
00099 int x;
00100 float t;
00101 for (x=0;x<len;x++) {
00102 t = *cr1 * ddr1 - *ci1 * ddi1;
00103 *ci1 = *cr1 * ddi1 + *ci1 * ddr1;
00104 *cr1 = t;
00105 t = 2.0 - (*cr1 * *cr1 + *ci1 * *ci1);
00106 *cr1 *= t;
00107 *ci1 *= t;
00108 buf[x] = AST_LIN2X(*cr1 * 8192.0);
00109 }
00110 }
00111
00112
00113 void callerid_init(void)
00114 {
00115 cid_dr[0] = cos(CALLERID_SPACE * 2.0 * M_PI / 8000.0);
00116 cid_di[0] = sin(CALLERID_SPACE * 2.0 * M_PI / 8000.0);
00117 cid_dr[1] = cos(CALLERID_MARK * 2.0 * M_PI / 8000.0);
00118 cid_di[1] = sin(CALLERID_MARK * 2.0 * M_PI / 8000.0);
00119 sasdr = cos(SAS_FREQ * 2.0 * M_PI / 8000.0);
00120 sasdi = sin(SAS_FREQ * 2.0 * M_PI / 8000.0);
00121 casdr1 = cos(CAS_FREQ1 * 2.0 * M_PI / 8000.0);
00122 casdi1 = sin(CAS_FREQ1 * 2.0 * M_PI / 8000.0);
00123 casdr2 = cos(CAS_FREQ2 * 2.0 * M_PI / 8000.0);
00124 casdi2 = sin(CAS_FREQ2 * 2.0 * M_PI / 8000.0);
00125 }
00126
00127 struct callerid_state *callerid_new(int cid_signalling)
00128 {
00129 struct callerid_state *cid;
00130 cid = malloc(sizeof(struct callerid_state));
00131 if (cid) {
00132 memset(cid, 0, sizeof(struct callerid_state));
00133 cid->fskd.spb = 7;
00134 cid->fskd.hdlc = 0;
00135 cid->fskd.nbit = 8;
00136 cid->fskd.nstop = 1;
00137 cid->fskd.paridad = 0;
00138 cid->fskd.bw=1;
00139 if (cid_signalling == 2) {
00140 cid->fskd.f_mark_idx = 4;
00141 cid->fskd.f_space_idx = 5;
00142 } else {
00143 cid->fskd.f_mark_idx = 2;
00144 cid->fskd.f_space_idx = 3;
00145 }
00146 cid->fskd.pcola = 0;
00147 cid->fskd.cont = 0;
00148 cid->fskd.x0 = 0.0;
00149 cid->fskd.state = 0;
00150 memset(cid->name, 0, sizeof(cid->name));
00151 memset(cid->number, 0, sizeof(cid->number));
00152 cid->flags = CID_UNKNOWN_NAME | CID_UNKNOWN_NUMBER;
00153 cid->pos = 0;
00154 } else
00155 ast_log(LOG_WARNING, "Out of memory\n");
00156 return cid;
00157 }
00158
00159 void callerid_get(struct callerid_state *cid, char **name, char **number, int *flags)
00160 {
00161 *flags = cid->flags;
00162 if (cid->flags & (CID_UNKNOWN_NAME | CID_PRIVATE_NUMBER))
00163 *name = NULL;
00164 else
00165 *name = cid->name;
00166 if (cid->flags & (CID_UNKNOWN_NUMBER | CID_PRIVATE_NUMBER))
00167 *number = NULL;
00168 else
00169 *number = cid->number;
00170 }
00171
00172 void callerid_get_dtmf(char *cidstring, char *number, int *flags)
00173 {
00174 int i;
00175 int code;
00176
00177
00178 number[0] = 0;
00179
00180 if (strlen(cidstring) < 2) {
00181 ast_log(LOG_DEBUG, "No cid detected\n");
00182 *flags = CID_UNKNOWN_NUMBER;
00183 return;
00184 }
00185
00186
00187 if (cidstring[0] == 'B') {
00188
00189 code = atoi(&cidstring[1]);
00190 if (code == 0)
00191 *flags = CID_UNKNOWN_NUMBER;
00192 else if (code == 10)
00193 *flags = CID_PRIVATE_NUMBER;
00194 else
00195 ast_log(LOG_DEBUG, "Unknown DTMF code %d\n", code);
00196 } else if (cidstring[0] == 'D' && cidstring[2] == '#') {
00197
00198 if (cidstring[1] == '1')
00199 *flags = CID_PRIVATE_NUMBER;
00200 if (cidstring[1] == '2' || cidstring[1] == '3')
00201 *flags = CID_UNKNOWN_NUMBER;
00202 } else if (cidstring[0] == 'D' || cidstring[0] == 'A') {
00203
00204 for (i = 1; i < strlen(cidstring); i++ ) {
00205 if (cidstring[i] == 'C' || cidstring[i] == '#')
00206 break;
00207 if (isdigit(cidstring[i]))
00208 number[i-1] = cidstring[i];
00209 else
00210 ast_log(LOG_DEBUG, "Unknown CID digit '%c'\n",
00211 cidstring[i]);
00212 }
00213 number[i-1] = 0;
00214 } else if (isdigit(cidstring[0])) {
00215
00216
00217 ast_log(LOG_WARNING, "Couldn't detect start-character. CID "
00218 "parsing might be unreliable\n");
00219 for (i = 0; i < strlen(cidstring); i++) {
00220 if (isdigit(cidstring[i]))
00221 number[i] = cidstring[i];
00222 else
00223 break;
00224 }
00225 number[i] = 0;
00226 } else {
00227 ast_log(LOG_DEBUG, "Unknown CID protocol, start digit '%c'\n",
00228 cidstring[0]);
00229 *flags = CID_UNKNOWN_NUMBER;
00230 }
00231 }
00232
00233 int ast_gen_cas(unsigned char *outbuf, int sendsas, int len, int codec)
00234 {
00235 int pos = 0;
00236 int saslen=2400;
00237 float cr1 = 1.0;
00238 float ci1 = 0.0;
00239 float cr2 = 1.0;
00240 float ci2 = 0.0;
00241 if (sendsas) {
00242 if (len < saslen)
00243 return -1;
00244 gen_tone(outbuf, saslen, codec, sasdr, sasdi, &cr1, &ci1);
00245 len -= saslen;
00246 pos += saslen;
00247 cr2 = cr1;
00248 ci2 = ci1;
00249 }
00250 gen_tones(outbuf + pos, len, codec, casdr1, casdi1, casdr2, casdi2, &cr1, &ci1, &cr2, &ci2);
00251 return 0;
00252 }
00253
00254 int callerid_feed(struct callerid_state *cid, unsigned char *ubuf, int len, int codec)
00255 {
00256 int mylen = len;
00257 int olen;
00258 int b = 'X';
00259 int res;
00260 int x;
00261 short *buf = malloc(2 * len + cid->oldlen);
00262 short *obuf = buf;
00263 if (!buf) {
00264 ast_log(LOG_WARNING, "Out of memory\n");
00265 return -1;
00266 }
00267 memset(buf, 0, 2 * len + cid->oldlen);
00268 memcpy(buf, cid->oldstuff, cid->oldlen);
00269 mylen += cid->oldlen/2;
00270 for (x=0;x<len;x++)
00271 buf[x+cid->oldlen/2] = AST_XLAW(ubuf[x]);
00272 while(mylen >= 160) {
00273 olen = mylen;
00274 res = fsk_serie(&cid->fskd, buf, &mylen, &b);
00275 if (mylen < 0) {
00276 ast_log(LOG_ERROR, "fsk_serie made mylen < 0 (%d)\n", mylen);
00277 return -1;
00278 }
00279 buf += (olen - mylen);
00280 if (res < 0) {
00281 ast_log(LOG_NOTICE, "fsk_serie failed\n");
00282 return -1;
00283 }
00284 if (res == 1) {
00285
00286 if (b > 0xff)
00287 continue;
00288 switch(cid->sawflag) {
00289 case 0:
00290 if (b == 'U')
00291 cid->sawflag = 2;
00292 break;
00293 case 2:
00294 if ((b == 0x04) || (b == 0x80)) {
00295 cid->type = b;
00296 cid->sawflag = 3;
00297 cid->cksum = b;
00298 }
00299 break;
00300 case 3:
00301
00302 cid->sawflag = 4;
00303 cid->len = b;
00304 cid->pos = 0;
00305 cid->cksum += b;
00306 break;
00307 case 4:
00308 if (cid->pos >= 128) {
00309 ast_log(LOG_WARNING, "Caller ID too long???\n");
00310 return -1;
00311 }
00312 cid->rawdata[cid->pos++] = b;
00313 cid->len--;
00314 cid->cksum += b;
00315 if (!cid->len) {
00316 cid->rawdata[cid->pos] = '\0';
00317 cid->sawflag = 5;
00318 }
00319 break;
00320 case 5:
00321 if (b != (256 - (cid->cksum & 0xff))) {
00322 ast_log(LOG_NOTICE, "Caller*ID failed checksum\n");
00323
00324 cid->sawflag = 0;
00325 break;
00326 }
00327
00328 cid->number[0] = '\0';
00329 cid->name[0] = '\0';
00330
00331 if (cid->type == 0x80) {
00332
00333
00334 for (x=0;x< cid->pos;) {
00335 switch(cid->rawdata[x++]) {
00336 case 1:
00337
00338 break;
00339 case 2:
00340 case 3:
00341 case 4:
00342 res = cid->rawdata[x];
00343 if (res > 32) {
00344 ast_log(LOG_NOTICE, "Truncating long caller ID number from %d bytes to 32\n", cid->rawdata[x]);
00345 res = 32;
00346 }
00347 if (ast_strlen_zero(cid->number)) {
00348 memcpy(cid->number, cid->rawdata + x + 1, res);
00349
00350 cid->number[res] = '\0';
00351 }
00352 break;
00353 case 6:
00354 break;
00355 case 7:
00356 case 8:
00357 res = cid->rawdata[x];
00358 if (res > 32) {
00359 ast_log(LOG_NOTICE, "Truncating long caller ID name from %d bytes to 32\n", cid->rawdata[x]);
00360 res = 32;
00361 }
00362 memcpy(cid->name, cid->rawdata + x + 1, res);
00363 cid->name[res] = '\0';
00364 break;
00365 case 17:
00366 case 19:
00367 case 22:
00368 break;
00369 default:
00370 ast_log(LOG_NOTICE, "Unknown IE %d\n", cid->rawdata[x-1]);
00371 }
00372 x += cid->rawdata[x];
00373 x++;
00374 }
00375 } else {
00376
00377 ast_copy_string(cid->number, cid->rawdata + 8, sizeof(cid->number));
00378 }
00379
00380 cid->flags = 0;
00381 if (!strcmp(cid->number, "P")) {
00382 strcpy(cid->number, "");
00383 cid->flags |= CID_PRIVATE_NUMBER;
00384 } else if (!strcmp(cid->number, "O") || ast_strlen_zero(cid->number)) {
00385 strcpy(cid->number, "");
00386 cid->flags |= CID_UNKNOWN_NUMBER;
00387 }
00388 if (!strcmp(cid->name, "P")) {
00389 strcpy(cid->name, "");
00390 cid->flags |= CID_PRIVATE_NAME;
00391 } else if (!strcmp(cid->name, "O") || ast_strlen_zero(cid->name)) {
00392 strcpy(cid->name, "");
00393 cid->flags |= CID_UNKNOWN_NAME;
00394 }
00395 return 1;
00396 break;
00397 default:
00398 ast_log(LOG_ERROR, "Dunno what to do with a digit in sawflag %d\n", cid->sawflag);
00399 }
00400 }
00401 }
00402 if (mylen) {
00403 memcpy(cid->oldstuff, buf, mylen * 2);
00404 cid->oldlen = mylen * 2;
00405 } else
00406 cid->oldlen = 0;
00407 free(obuf);
00408 return 0;
00409 }
00410
00411 void callerid_free(struct callerid_state *cid)
00412 {
00413 free(cid);
00414 }
00415
00416 static int callerid_genmsg(char *msg, int size, char *number, char *name, int flags)
00417 {
00418 time_t t;
00419 struct tm tm;
00420 char *ptr;
00421 int res;
00422 int i,x;
00423
00424 time(&t);
00425 localtime_r(&t,&tm);
00426
00427 ptr = msg;
00428
00429
00430 res = snprintf(ptr, size, "\001\010%02d%02d%02d%02d", tm.tm_mon + 1,
00431 tm.tm_mday, tm.tm_hour, tm.tm_min);
00432 size -= res;
00433 ptr += res;
00434 if (ast_strlen_zero(number) || (flags & CID_UNKNOWN_NUMBER)) {
00435
00436 res = snprintf(ptr, size, "\004\001O");
00437 size -= res;
00438 ptr += res;
00439 } else if (flags & CID_PRIVATE_NUMBER) {
00440
00441 res = snprintf(ptr, size, "\004\001P");
00442 size -= res;
00443 ptr += res;
00444 } else {
00445
00446 i = strlen(number);
00447 if (i > 16) i = 16;
00448 res = snprintf(ptr, size, "\002%c", i);
00449 size -= res;
00450 ptr += res;
00451 for (x=0;x<i;x++)
00452 ptr[x] = number[x];
00453 ptr[i] = '\0';
00454 ptr += i;
00455 size -= i;
00456 }
00457
00458 if (ast_strlen_zero(name) || (flags & CID_UNKNOWN_NAME)) {
00459
00460 res = snprintf(ptr, size, "\010\001O");
00461 size -= res;
00462 ptr += res;
00463 } else if (flags & CID_PRIVATE_NAME) {
00464
00465 res = snprintf(ptr, size, "\010\001P");
00466 size -= res;
00467 ptr += res;
00468 } else {
00469
00470 i = strlen(name);
00471 if (i > 16) i = 16;
00472 res = snprintf(ptr, size, "\007%c", i);
00473 size -= res;
00474 ptr += res;
00475 for (x=0;x<i;x++)
00476 ptr[x] = name[x];
00477 ptr[i] = '\0';
00478 ptr += i;
00479 size -= i;
00480 }
00481 return (ptr - msg);
00482
00483 }
00484
00485 int vmwi_generate(unsigned char *buf, int active, int mdmf, int codec)
00486 {
00487 unsigned char msg[256];
00488 int len=0;
00489 int sum;
00490 int x;
00491 int bytes = 0;
00492 float cr = 1.0;
00493 float ci = 0.0;
00494 float scont = 0.0;
00495 if (mdmf) {
00496
00497 msg[len++] = 0x82;
00498
00499 msg[len++] = 3;
00500
00501 msg[len++] = 0xb;
00502
00503 msg[len++] = 1;
00504
00505 if (active)
00506 msg[len++] = 0xff;
00507 else
00508 msg[len++] = 0x00;
00509 } else {
00510
00511 msg[len++] = 0x6;
00512
00513 msg[len++] = 3;
00514 if (active) {
00515 msg[len++] = 0x42;
00516 msg[len++] = 0x42;
00517 msg[len++] = 0x42;
00518 } else {
00519 msg[len++] = 0x6f;
00520 msg[len++] = 0x6f;
00521 msg[len++] = 0x6f;
00522 }
00523 }
00524 sum = 0;
00525 for (x=0;x<len;x++)
00526 sum += msg[x];
00527 sum = (256 - (sum & 255));
00528 msg[len++] = sum;
00529
00530 for (x=0;x<4000;x++)
00531 PUT_BYTE(0x7f);
00532
00533 for (x=0;x<30;x++)
00534 PUT_CLID(0x55);
00535
00536 for (x=0;x<170;x++)
00537 PUT_CLID_MARKMS;
00538 for (x=0;x<len;x++) {
00539 PUT_CLID(msg[x]);
00540 }
00541
00542 for (x=0;x<50;x++)
00543 PUT_CLID_MARKMS;
00544 return bytes;
00545 }
00546
00547 int callerid_generate(unsigned char *buf, char *number, char *name, int flags, int callwaiting, int codec)
00548 {
00549 int bytes=0;
00550 int x, sum;
00551 int len;
00552
00553 float cr = 1.0;
00554 float ci = 0.0;
00555 float scont = 0.0;
00556 char msg[256];
00557 len = callerid_genmsg(msg, sizeof(msg), number, name, flags);
00558 if (!callwaiting) {
00559
00560 for (x=0;x<4000;x++)
00561 PUT_BYTE(0x7f);
00562
00563 for (x=0;x<30;x++)
00564 PUT_CLID(0x55);
00565 }
00566
00567 for (x=0;x<150;x++)
00568 PUT_CLID_MARKMS;
00569
00570 PUT_CLID(0x80);
00571
00572 PUT_CLID(len);
00573 sum = 0x80 + strlen(msg);
00574
00575 for (x=0;x<len; x++) {
00576 PUT_CLID(msg[x]);
00577 sum += msg[x];
00578 }
00579
00580 PUT_CLID(256 - (sum & 255));
00581
00582
00583 for (x=0;x<50;x++)
00584 PUT_CLID_MARKMS;
00585
00586 return bytes;
00587 }
00588
00589 void ast_shrink_phone_number(char *n)
00590 {
00591 int x,y=0;
00592 int bracketed=0;
00593 for (x=0;n[x];x++) {
00594 switch(n[x]) {
00595 case '[':
00596 bracketed++;
00597 n[y++] = n[x];
00598 break;
00599 case ']':
00600 bracketed--;
00601 n[y++] = n[x];
00602 break;
00603 case '-':
00604 if (bracketed)
00605 n[y++] = n[x];
00606 break;
00607 case '.':
00608 if (!n[x+1])
00609 n[y++] = n[x];
00610 break;
00611 default:
00612 if (!strchr("( )", n[x]))
00613 n[y++] = n[x];
00614 }
00615 }
00616 n[y] = '\0';
00617 }
00618
00619
00620
00621
00622
00623 int ast_isphonenumber(char *n)
00624 {
00625 int x;
00626 if (ast_strlen_zero(n))
00627 return 0;
00628 for (x=0;n[x];x++)
00629 if (!strchr("0123456789*#+", n[x]))
00630 return 0;
00631 return 1;
00632 }
00633
00634
00635
00636
00637 int ast_callerid_parse(char *instr, char **name, char **location)
00638 {
00639 char *ns, *ne;
00640 char *ls, *le;
00641 char tmp[256];
00642
00643
00644 if ((ls = strchr(instr, '<')) && (le = strchr(ls, '>'))) {
00645
00646 *le = '\0';
00647 *ls = '\0';
00648 *location = ls + 1;
00649 if ((ns = strchr(instr, '\"')) && (ne = strchr(ns + 1, '\"'))) {
00650
00651 *ns = '\0';
00652 *ne = '\0';
00653 *name = ns + 1;
00654 return 0;
00655 } else {
00656
00657 *name = instr;
00658 while(!ast_strlen_zero(instr) && (instr[strlen(instr) - 1] < 33))
00659 instr[strlen(instr) - 1] = '\0';
00660
00661 *name = ast_skip_blanks(*name);
00662 return 0;
00663 }
00664 } else {
00665 ast_copy_string(tmp, instr, sizeof(tmp));
00666 ast_shrink_phone_number(tmp);
00667 if (ast_isphonenumber(tmp)) {
00668
00669 *name = NULL;
00670 *location = instr;
00671 } else {
00672
00673 *name = instr;
00674 while(*(*name) && ((*(*name) < 33) || (*(*name) == '\"'))) (*name)++;
00675 ne = *name + strlen(*name) - 1;
00676 while((ne > *name) && ((*ne < 33) || (*ne == '\"'))) { *ne = '\0'; ne--; }
00677 *location = NULL;
00678 }
00679 return 0;
00680 }
00681 return -1;
00682 }
00683
00684 static int __ast_callerid_generate(unsigned char *buf, char *name, char *number, int callwaiting, int codec)
00685 {
00686 if (ast_strlen_zero(name))
00687 name = NULL;
00688 if (ast_strlen_zero(number))
00689 number = NULL;
00690 return callerid_generate(buf, number, name, 0, callwaiting, codec);
00691 }
00692
00693 int ast_callerid_generate(unsigned char *buf, char *name, char *number, int codec)
00694 {
00695 return __ast_callerid_generate(buf, name, number, 0, codec);
00696 }
00697
00698 int ast_callerid_callwaiting_generate(unsigned char *buf, char *name, char *number, int codec)
00699 {
00700 return __ast_callerid_generate(buf, name, number, 1, codec);
00701 }
00702
00703 char *ast_callerid_merge(char *buf, int bufsiz, const char *name, const char *num, const char *unknown)
00704 {
00705 if (!unknown)
00706 unknown = "<unknown>";
00707 if (name && num)
00708 snprintf(buf, bufsiz, "\"%s\" <%s>", name, num);
00709 else if (name)
00710 ast_copy_string(buf, name, bufsiz);
00711 else if (num)
00712 ast_copy_string(buf, num, bufsiz);
00713 else
00714 ast_copy_string(buf, unknown, bufsiz);
00715 return buf;
00716 }
00717
00718 int ast_callerid_split(const char *buf, char *name, int namelen, char *num, int numlen)
00719 {
00720 char *tmp;
00721 char *l = NULL, *n = NULL;
00722 tmp = ast_strdupa(buf);
00723 if (!tmp) {
00724 name[0] = '\0';
00725 num[0] = '\0';
00726 return -1;
00727 }
00728 ast_callerid_parse(tmp, &n, &l);
00729 if (n)
00730 ast_copy_string(name, n, namelen);
00731 else
00732 name[0] = '\0';
00733 if (l) {
00734 ast_shrink_phone_number(l);
00735 ast_copy_string(num, l, numlen);
00736 } else
00737 num[0] = '\0';
00738 return 0;
00739 }
00740
00741 static struct {
00742 int val;
00743 char *name;
00744 char *description;
00745 } pres_types[] = {
00746 { AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED, "allowed_not_screened", "Presentation Allowed, Not Screened"},
00747 { AST_PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN, "allowed_passed_screen", "Presentation Allowed, Passed Screen"},
00748 { AST_PRES_ALLOWED_USER_NUMBER_FAILED_SCREEN, "allowed_failed_screen", "Presentation Allowed, Failed Screen"},
00749 { AST_PRES_ALLOWED_NETWORK_NUMBER, "allowed", "Presentation Allowed, Network Number"},
00750 { AST_PRES_PROHIB_USER_NUMBER_NOT_SCREENED, "prohib_not_screened", "Presentation Prohibited, Not Screened"},
00751 { AST_PRES_PROHIB_USER_NUMBER_PASSED_SCREEN, "prohib_passed_screen", "Presentation Prohibited, Passed Screen"},
00752 { AST_PRES_PROHIB_USER_NUMBER_FAILED_SCREEN, "prohib_failed_screen", "Presentation Prohibited, Failed Screen"},
00753 { AST_PRES_PROHIB_NETWORK_NUMBER, "prohib", "Presentation Prohibited, Network Number"},
00754 { AST_PRES_NUMBER_NOT_AVAILABLE, "unavailable", "Number Unavailable"},
00755 };
00756
00757
00758
00759
00760
00761
00762 int ast_parse_caller_presentation(const char *data)
00763 {
00764 int i;
00765
00766 for (i = 0; i < ((sizeof(pres_types) / sizeof(pres_types[0]))); i++) {
00767 if (!strcasecmp(pres_types[i].name, data))
00768 return pres_types[i].val;
00769 }
00770
00771 return -1;
00772 }
00773
00774
00775
00776
00777
00778 const char *ast_describe_caller_presentation(int data)
00779 {
00780 int i;
00781
00782 for (i = 0; i < ((sizeof(pres_types) / sizeof(pres_types[0]))); i++) {
00783 if (pres_types[i].val == data)
00784 return pres_types[i].description;
00785 }
00786
00787 return "unknown";
00788 }