FreeCalypso > hg > sipout-test-utils
comparison libsip/resp_ident.c @ 0:35c0d9f03c0a
beginning with sipout-test-voice,
a copy of sip-manual-out from themwi-system-sw
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sun, 03 Mar 2024 23:20:19 -0800 |
| parents | |
| children |
comparison
equal
deleted
inserted
replaced
| -1:000000000000 | 0:35c0d9f03c0a |
|---|---|
| 1 /* | |
| 2 * In this module we implement an essential step in the process | |
| 3 * of handling incoming SIP response messages: extracting Call-ID | |
| 4 * and CSeq headers and preparsing the latter, providing key info | |
| 5 * for matching these incoming responses with call state and | |
| 6 * with outstanding UAC requests. | |
| 7 */ | |
| 8 | |
| 9 #include <ctype.h> | |
| 10 #include <string.h> | |
| 11 #include <strings.h> | |
| 12 #include <stdio.h> | |
| 13 #include <stdlib.h> | |
| 14 #include "parse.h" | |
| 15 #include "resp_ident.h" | |
| 16 | |
| 17 extern char *get_single_header(); | |
| 18 | |
| 19 sip_resp_extract_ident(msg, id) | |
| 20 struct sip_pkt_rx *msg; | |
| 21 struct sip_resp_ident *id; | |
| 22 { | |
| 23 char *hval, *cp; | |
| 24 int dup_flag = 0; | |
| 25 | |
| 26 hval = get_single_header(msg, "Call-ID", "i", &dup_flag); | |
| 27 if (!hval || dup_flag) { | |
| 28 id->error_field = "Call-ID"; | |
| 29 return(-1); | |
| 30 } | |
| 31 id->call_id = hval; | |
| 32 hval = get_single_header(msg, "CSeq", (char *) 0, &dup_flag); | |
| 33 if (!hval || dup_flag) { | |
| 34 bad_cseq: id->error_field = "CSeq"; | |
| 35 return(-1); | |
| 36 } | |
| 37 if (!isdigit(*hval)) | |
| 38 goto bad_cseq; | |
| 39 id->cseq_num = strtoul(hval, &cp, 10); | |
| 40 if (!isspace(*cp)) | |
| 41 goto bad_cseq; | |
| 42 while (isspace(*cp)) | |
| 43 cp++; | |
| 44 if (!isupper(*cp)) | |
| 45 goto bad_cseq; | |
| 46 id->cseq_method = cp; | |
| 47 while (isalnum(*cp)) | |
| 48 cp++; | |
| 49 if (*cp) | |
| 50 goto bad_cseq; | |
| 51 return(0); | |
| 52 } |