FreeCalypso > hg > sipout-test-utils

annotate libsip/get_header.c @ 18:f7321b25195e default tip

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new build system for ThemWi sw components
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 14 May 2024 18:08:35 -0800
parents 35c0d9f03c0a
children
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Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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2 * In this module we implement functions for retrieving individual
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3 * header fields from struct sip_pkt_rx.
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4 */
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5
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6 #include <string.h>
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7 #include <strings.h>
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8 #include "parse.h"
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9
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10 char *
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11 get_single_header(msg, name, altname, dupp)
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12 struct sip_pkt_rx *msg;
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13 char *name, *altname;
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14 int *dupp;
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15 {
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16 unsigned n;
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17 char *ret;
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18
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19 for (n = 0; n < msg->num_hdr_fields; n++) {
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20 if (!strcasecmp(msg->hdr_fields[n].field_name, name))
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21 break;
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22 if (altname &&
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23 !strcasecmp(msg->hdr_fields[n].field_name, altname))
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24 break;
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25 }
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26 if (n >= msg->num_hdr_fields)
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27 return 0;
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28 ret = msg->hdr_fields[n].field_value;
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29 if (!dupp)
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30 return ret;
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31 for (n++; n < msg->num_hdr_fields; n++) {
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32 if (!strcasecmp(msg->hdr_fields[n].field_name, name))
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33 *dupp = 1;
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34 if (altname &&
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35 !strcasecmp(msg->hdr_fields[n].field_name, altname))
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36 *dupp = 1;
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37 }
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38 return ret;
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39 }