FreeCalypso > hg > themwi-system-sw

annotate libutil/extdigits.c @ 124:7e04d28fae8b

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sip-in: default use-100rel to no BulkVS servers act badly when we send a reliable 180 Ringing response to an incoming call, even though they advertise 100rel support in the Supported header in the INVITE packet, and we probably won't be implementing 100rel for outbound because doing per-the-spec PRACK as a UAC is just too burdensome. Therefore, we need to consider 100rel extension as not-really-supported in themwi-system-sw.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 01 Oct 2022 15:54:50 -0800
parents b13acb024fc6
children
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b13acb024fc6 libutil: add is_valid_ext_digit()
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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2 * The library function implemented in this module checks "extended"
b13acb024fc6 libutil: add is_valid_ext_digit()
Mychaela Falconia <falcon@freecalypso.org>
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3 * number digits, i.e., checks whether or not a given character
b13acb024fc6 libutil: add is_valid_ext_digit()
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4 * makes a valid "extended" number digit.
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5 */
b13acb024fc6 libutil: add is_valid_ext_digit()
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6
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7 is_valid_ext_digit(c)
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8 {
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9 switch (c) {
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10 case '0':
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11 case '1':
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12 case '2':
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13 case '3':
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14 case '4':
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15 case '5':
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16 case '6':
b13acb024fc6 libutil: add is_valid_ext_digit()
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17 case '7':
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18 case '8':
b13acb024fc6 libutil: add is_valid_ext_digit()
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19 case '9':
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20 case '*':
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21 case '#':
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22 case 'a':
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23 case 'b':
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24 case 'c':
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25 return(1);
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26 default:
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27 return(0);
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28 }
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29 }