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annotate libsip/uri_utils.c @ 46:5427b26525cd

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libsip: beginning to flesh out
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 06 Sep 2022 20:29:44 -0800
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5427b26525cd libsip: beginning to flesh out
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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Mychaela Falconia <falcon@freecalypso.org>
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2 * Some utility functions for working with SIP URIs.
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Mychaela Falconia <falcon@freecalypso.org>
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3 */
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Mychaela Falconia <falcon@freecalypso.org>
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4
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Mychaela Falconia <falcon@freecalypso.org>
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5 #include <string.h>
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Mychaela Falconia <falcon@freecalypso.org>
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6 #include <strings.h>
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Mychaela Falconia <falcon@freecalypso.org>
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7
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Mychaela Falconia <falcon@freecalypso.org>
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8 user_from_sip_uri(uri, outbuf, maxlen)
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Mychaela Falconia <falcon@freecalypso.org>
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9 char *uri, *outbuf;
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Mychaela Falconia <falcon@freecalypso.org>
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10 unsigned maxlen;
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Mychaela Falconia <falcon@freecalypso.org>
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11 {
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Mychaela Falconia <falcon@freecalypso.org>
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12 char *cp, *dp;
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Mychaela Falconia <falcon@freecalypso.org>
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13 unsigned n;
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Mychaela Falconia <falcon@freecalypso.org>
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14
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Mychaela Falconia <falcon@freecalypso.org>
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15 if (strncasecmp(uri, "sip:", 4))
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Mychaela Falconia <falcon@freecalypso.org>
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16 return(-1);
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Mychaela Falconia <falcon@freecalypso.org>
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17 cp = uri + 4;
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Mychaela Falconia <falcon@freecalypso.org>
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18 dp = outbuf;
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Mychaela Falconia <falcon@freecalypso.org>
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19 n = 0;
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Mychaela Falconia <falcon@freecalypso.org>
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20 for (;;) {
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Mychaela Falconia <falcon@freecalypso.org>
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21 if (!*cp)
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Mychaela Falconia <falcon@freecalypso.org>
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22 return(-1);
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Mychaela Falconia <falcon@freecalypso.org>
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23 if (*cp == '@')
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Mychaela Falconia <falcon@freecalypso.org>
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24 break;
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Mychaela Falconia <falcon@freecalypso.org>
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25 if (n >= maxlen)
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Mychaela Falconia <falcon@freecalypso.org>
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26 return(-2);
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Mychaela Falconia <falcon@freecalypso.org>
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27 *dp++ = *cp++;
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Mychaela Falconia <falcon@freecalypso.org>
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28 n++;
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Mychaela Falconia <falcon@freecalypso.org>
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29 }
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Mychaela Falconia <falcon@freecalypso.org>
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30 *dp = '\0';
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Mychaela Falconia <falcon@freecalypso.org>
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31 return(0);
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Mychaela Falconia <falcon@freecalypso.org>
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32 }