Feature-Caps: +sip.pns="apns";+sip.pnsreg="130" */
| 29 | |
| 30 | /* Feature-Caps: +sip.pns="apns";+sip.pnsreg="130" */ |
| 31 | int parse_fcaps(struct hdr_field* _h) |
| 32 | { |
| 33 | fcaps_body_t *b = NULL; |
| 34 | int len = _h->body.len; |
| 35 | char *s = _h->body.s, *end = s + len, *p; |
| 36 | |
| 37 | if (_h->parsed) |
| 38 | return 0; |
| 39 | |
| 40 | /* optimized, simplistic parser. Ideal for the PN proxy use case! */ |
| 41 | while (len > 0 && (p = q_memchr(s, '+', len))) { |
| 42 | len -= p + 1 - s; |
| 43 | s = p + 1; |
| 44 | |
| 45 | if (end - p >= (fcaps_pns.len + 4) && |
| 46 | !memcmp(p, fcaps_pns.s, fcaps_pns.len)) { |
| 47 | |
| 48 | p += fcaps_pns.len; |
| 49 | len -= p - s; |
| 50 | s = p; |
| 51 | |
| 52 | /* start LDQUOT */ |
| 53 | if (*p != '=' || *(p + 1) != '"') |
| 54 | continue; |
| 55 | |
| 56 | /* end LDQUOT */ |
| 57 | p += 2; |
| 58 | len -= 2; |
| 59 | s = p; |
| 60 | |
| 61 | if (!(p = q_memchr(s + 1, '"', len - 1))) |
| 62 | goto out; |
| 63 | |
| 64 | /* successfully matched a +sip.pns="..." string */ |
| 65 | |
| 66 | if (!b) { |
| 67 | b = pkg_malloc(sizeof *b); |
| 68 | if (!b) { |
| 69 | LM_ERR("oom\n"); |
| 70 | return -1; |
| 71 | } |
| 72 | memset(b, 0, sizeof *b); |
| 73 | } |
| 74 | |
| 75 | b->pns.s = s; |
| 76 | b->pns.len = p - s; |
| 77 | |
| 78 | p++; |
| 79 | len -= p - s; |
| 80 | s = p; |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | out: |
| 85 | if (!b) |
| 86 | return -1; |
| 87 | |
| 88 | _h->parsed = (void *)b; |