FreeCalypso > hg > sipout-test-utils

annotate libsip/to_tag.c @ 0:35c0d9f03c0a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 * The function implemented in this module extracts the tag
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 * from the To header of a SIP destination server's response.
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 */
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 #include <ctype.h>
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 #include <string.h>
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 #include <strings.h>
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 #include <stdio.h>
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 #include <stdlib.h>
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 #include "parse.h"
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 extern char *get_single_header();
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 char *
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 extract_to_tag(msg, expect_uri)
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 struct sip_pkt_rx *msg;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 char *expect_uri;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 {
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 char *cp, *tag;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 int bracketed, c;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 unsigned expect_uri_len;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 cp = get_single_header(msg, "To", "t", (int *) 0);
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 if (!cp)
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 return 0;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 if (*cp == '<') {
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 cp++;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 bracketed = 1;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 } else
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 bracketed = 0;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 expect_uri_len = strlen(expect_uri);
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 if (strncasecmp(cp, expect_uri, expect_uri_len))
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 return 0;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 cp += expect_uri_len;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 if (bracketed) {
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 if (*cp++ != '>')
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 return 0;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 }
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 while (isspace(*cp))
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 cp++;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 if (*cp++ != ';')
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 return 0;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 while (isspace(*cp))
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 cp++;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 if (strncasecmp(cp, "tag", 3))
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 return 0;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 cp += 3;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 while (isspace(*cp))
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 cp++;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 if (*cp++ != '=')
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 return 0;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 while (isspace(*cp))
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 cp++;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 tag = cp;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 for (; c = *cp; cp++) {
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 switch (c) {
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 case '-':
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 case '.':
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 case '!':
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 case '%':
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62 case '*':
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 case '_':
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64 case '+':
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65 case '`':
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66 case '\'':
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
67 case '~':
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
68 continue;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
69 default:
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
70 if (isalnum(c))
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
71 continue;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
72 return 0;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
73 }
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
74 }
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
75 return tag;
35c0d9f03c0a beginning with sipout-test-voice,
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
76 }