FreeCalypso > hg > themwi-system-sw

annotate sip-out/readconf.c @ 154:e54b0a9e322f

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beginning of themwi-sip-out
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 11 Oct 2022 23:04:01 -0800
parents sip-in/readconf.c@7e04d28fae8b
children 0bacca1f2f7b
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rev   line source
47
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1 /*
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2 * In this module we implement the reading of /var/gsm/themwi-sip-out.cfg:
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3 * the main settings are bind-ip and bind-port, but we also have some
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4 * optional config settings.
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5 */
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6
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7 #include <sys/types.h>
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8 #include <sys/socket.h>
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9 #include <netinet/in.h>
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10 #include <arpa/inet.h>
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11 #include <ctype.h>
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12 #include <stdio.h>
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13 #include <stdlib.h>
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14 #include <string.h>
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15 #include <strings.h>
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16
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17 struct in_addr sip_bind_ip;
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18 unsigned sip_bind_port;
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19 unsigned cfg_retrans_timeout = 500;
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20 unsigned cfg_retrans_count = 10;
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21 unsigned max_forwards = 70;
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22 unsigned sip_linger_timeout = 10;
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23 unsigned sip_linger_invite_err = 10;
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24 unsigned sip_linger_gotbye = 30;
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25 unsigned sip_linger_bye_out_ok = 5;
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26 unsigned sip_linger_bye_out_err = 180;
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27 int block_1900_numbers = 1;
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28
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29 static char config_file_pathname[] = "/var/gsm/themwi-sip-out.cfg";
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30
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31 struct parse_state {
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32 int lineno;
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33 int set_mask;
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34 };
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35
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36 static void
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37 require_one_arg(st, kw, arg)
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38 struct parse_state *st;
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39 char *kw, *arg;
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40 {
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41 char *cp;
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42
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43 if (*arg == '\0' || *arg == '#') {
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44 inv_syntax: fprintf(stderr,
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45 "%s line %d: %s setting requires one argument\n",
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46 config_file_pathname, st->lineno, kw);
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47 exit(1);
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48 }
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49 for (cp = arg; *cp && !isspace(*cp); cp++)
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50 ;
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51 if (*cp)
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52 *cp++ = '\0';
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53 while (isspace(*cp))
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54 cp++;
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55 if (*cp != '\0' && *cp != '#')
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56 goto inv_syntax;
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57 }
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58
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59 static void
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60 handle_ip(st, kw, arg, var)
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61 struct parse_state *st;
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62 char *kw, *arg;
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63 struct in_addr *var;
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64 {
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65 require_one_arg(st, kw, arg);
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66 var->s_addr = inet_addr(arg);
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67 if (var->s_addr == INADDR_NONE) {
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68 fprintf(stderr,
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69 "%s line %d: invalid IP address argument \"%s\"\n",
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70 config_file_pathname, st->lineno, arg);
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71 exit(1);
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72 }
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73 }
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74
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75 static void
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76 handle_num(st, kw, arg, var)
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77 struct parse_state *st;
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78 char *kw, *arg;
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79 unsigned *var;
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80 {
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81 char *endp;
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82
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83 require_one_arg(st, kw, arg);
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84 *var = strtoul(arg, &endp, 10);
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85 if (*endp) {
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86 fprintf(stderr, "%s line %d: invalid numeric argument \"%s\"\n",
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87 config_file_pathname, st->lineno, arg);
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88 exit(1);
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89 }
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90 }
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91
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92 static void
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93 handle_bool(st, kw, arg, var)
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94 struct parse_state *st;
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95 char *kw, *arg;
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96 int *var;
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97 {
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98 require_one_arg(st, kw, arg);
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99 if (!strcmp(arg, "true") || !strcmp(arg, "on") || !strcmp(arg, "yes")
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100 || !strcmp(arg, "1")) {
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101 *var = 1;
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102 return;
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103 }
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104 if (!strcmp(arg, "false") || !strcmp(arg, "off") || !strcmp(arg, "no")
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105 || !strcmp(arg, "0")) {
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106 *var = 0;
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107 return;
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108 }
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109 fprintf(stderr, "%s line %d: invalid boolean argument \"%s\"\n",
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110 config_file_pathname, st->lineno, arg);
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111 exit(1);
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112 }
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113
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114 static void
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115 handle_retrans_conf(st, kw, arg)
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116 struct parse_state *st;
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117 char *kw, *arg;
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118 {
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119 char *cp = arg;
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120
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121 if (!isdigit(*cp)) {
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122 inv: fprintf(stderr,
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123 "%s line %d: %s setting requires two numeric arguments\n",
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124 config_file_pathname, st->lineno, kw);
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125 exit(1);
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126 }
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127 cfg_retrans_timeout = strtoul(cp, &cp, 10);
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128 while (isspace(*cp))
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129 cp++;
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130 if (!isdigit(*cp))
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131 goto inv;
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diff changeset
132 cfg_retrans_count = strtoul(cp, &cp, 10);
fd23e2747b45 sip-in: add sip-udp-retrans configuration setting
Mychaela Falconia <falcon@freecalypso.org>
parents: 90
diff changeset
133 while (isspace(*cp))
fd23e2747b45 sip-in: add sip-udp-retrans configuration setting
Mychaela Falconia <falcon@freecalypso.org>
parents: 90
diff changeset
134 cp++;
fd23e2747b45 sip-in: add sip-udp-retrans configuration setting
Mychaela Falconia <falcon@freecalypso.org>
parents: 90
diff changeset
135 if (*cp != '\0' && *cp != '#')
fd23e2747b45 sip-in: add sip-udp-retrans configuration setting
Mychaela Falconia <falcon@freecalypso.org>
parents: 90
diff changeset
136 goto inv;
fd23e2747b45 sip-in: add sip-udp-retrans configuration setting
Mychaela Falconia <falcon@freecalypso.org>
parents: 90
diff changeset
137 }
fd23e2747b45 sip-in: add sip-udp-retrans configuration setting
Mychaela Falconia <falcon@freecalypso.org>
parents: 90
diff changeset
138
fd23e2747b45 sip-in: add sip-udp-retrans configuration setting
Mychaela Falconia <falcon@freecalypso.org>
parents: 90
diff changeset
139 static void
47
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 process_line(st, line)
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 struct parse_state *st;
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 char *line;
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 {
89
e64d4d44025d sip-in/readconf.c: first step toward non-trivial settings
Mychaela Falconia <falcon@freecalypso.org>
parents: 68
diff changeset
144 char *cp, *kw;
47
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 void (*handler)(), *var;
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 int set_id;
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 if (!index(line, '\n')) {
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 fprintf(stderr, "%s line %d: too long or missing newline\n",
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 config_file_pathname, st->lineno);
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 exit(1);
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 }
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 for (cp = line; isspace(*cp); cp++)
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 ;
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 if (*cp == '\0' || *cp == '#')
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 return;
89
e64d4d44025d sip-in/readconf.c: first step toward non-trivial settings
Mychaela Falconia <falcon@freecalypso.org>
parents: 68
diff changeset
157 for (kw = cp; *cp && !isspace(*cp); cp++)
47
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 ;
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 if (*cp)
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 *cp++ = '\0';
89
e64d4d44025d sip-in/readconf.c: first step toward non-trivial settings
Mychaela Falconia <falcon@freecalypso.org>
parents: 68
diff changeset
161 if (!strcmp(kw, "bind-ip")) {
47
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 handler = handle_ip;
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 var = &sip_bind_ip;
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 set_id = 1;
89
e64d4d44025d sip-in/readconf.c: first step toward non-trivial settings
Mychaela Falconia <falcon@freecalypso.org>
parents: 68
diff changeset
165 } else if (!strcmp(kw, "bind-port")) {
47
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 handler = handle_num;
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 var = &sip_bind_port;
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 set_id = 2;
91
fd23e2747b45 sip-in: add sip-udp-retrans configuration setting
Mychaela Falconia <falcon@freecalypso.org>
parents: 90
diff changeset
169 } else if (!strcmp(kw, "sip-udp-retrans")) {
fd23e2747b45 sip-in: add sip-udp-retrans configuration setting
Mychaela Falconia <falcon@freecalypso.org>
parents: 90
diff changeset
170 handler = handle_retrans_conf;
fd23e2747b45 sip-in: add sip-udp-retrans configuration setting
Mychaela Falconia <falcon@freecalypso.org>
parents: 90
diff changeset
171 var = (void *) 0;
fd23e2747b45 sip-in: add sip-udp-retrans configuration setting
Mychaela Falconia <falcon@freecalypso.org>
parents: 90
diff changeset
172 set_id = 0;
154
e54b0a9e322f beginning of themwi-sip-out
Mychaela Falconia <falcon@freecalypso.org>
parents: 124
diff changeset
173 } else if (!strcmp(kw, "sip-linger-timeout")) {
109
9b87894704eb sip-in: first step toward final call clearing
Mychaela Falconia <falcon@freecalypso.org>
parents: 108
diff changeset
174 handler = handle_num;
154
e54b0a9e322f beginning of themwi-sip-out
Mychaela Falconia <falcon@freecalypso.org>
parents: 124
diff changeset
175 var = &sip_linger_timeout;
e54b0a9e322f beginning of themwi-sip-out
Mychaela Falconia <falcon@freecalypso.org>
parents: 124
diff changeset
176 set_id = 0;
e54b0a9e322f beginning of themwi-sip-out
Mychaela Falconia <falcon@freecalypso.org>
parents: 124
diff changeset
177 } else if (!strcmp(kw, "sip-linger-invite-error")) {
e54b0a9e322f beginning of themwi-sip-out
Mychaela Falconia <falcon@freecalypso.org>
parents: 124
diff changeset
178 handler = handle_num;
e54b0a9e322f beginning of themwi-sip-out
Mychaela Falconia <falcon@freecalypso.org>
parents: 124
diff changeset
179 var = &sip_linger_invite_err;
109
9b87894704eb sip-in: first step toward final call clearing
Mychaela Falconia <falcon@freecalypso.org>
parents: 108
diff changeset
180 set_id = 0;
9b87894704eb sip-in: first step toward final call clearing
Mychaela Falconia <falcon@freecalypso.org>
parents: 108
diff changeset
181 } else if (!strcmp(kw, "sip-linger-got-bye")) {
9b87894704eb sip-in: first step toward final call clearing
Mychaela Falconia <falcon@freecalypso.org>
parents: 108
diff changeset
182 handler = handle_num;
9b87894704eb sip-in: first step toward final call clearing
Mychaela Falconia <falcon@freecalypso.org>
parents: 108
diff changeset
183 var = &sip_linger_gotbye;
9b87894704eb sip-in: first step toward final call clearing
Mychaela Falconia <falcon@freecalypso.org>
parents: 108
diff changeset
184 set_id = 0;
154
e54b0a9e322f beginning of themwi-sip-out
Mychaela Falconia <falcon@freecalypso.org>
parents: 124
diff changeset
185 } else if (!strcmp(kw, "sip-linger-bye-out-ok")) {
109
9b87894704eb sip-in: first step toward final call clearing
Mychaela Falconia <falcon@freecalypso.org>
parents: 108
diff changeset
186 handler = handle_num;
154
e54b0a9e322f beginning of themwi-sip-out
Mychaela Falconia <falcon@freecalypso.org>
parents: 124
diff changeset
187 var = &sip_linger_bye_out_ok;
e54b0a9e322f beginning of themwi-sip-out
Mychaela Falconia <falcon@freecalypso.org>
parents: 124
diff changeset
188 set_id = 0;
e54b0a9e322f beginning of themwi-sip-out
Mychaela Falconia <falcon@freecalypso.org>
parents: 124
diff changeset
189 } else if (!strcmp(kw, "sip-linger-bye-out-error")) {
e54b0a9e322f beginning of themwi-sip-out
Mychaela Falconia <falcon@freecalypso.org>
parents: 124
diff changeset
190 handler = handle_num;
e54b0a9e322f beginning of themwi-sip-out
Mychaela Falconia <falcon@freecalypso.org>
parents: 124
diff changeset
191 var = &sip_linger_bye_out_err;
109
9b87894704eb sip-in: first step toward final call clearing
Mychaela Falconia <falcon@freecalypso.org>
parents: 108
diff changeset
192 set_id = 0;
92
a9137bdb6047 sip-in: make BYE Max-Forwards configurable
Mychaela Falconia <falcon@freecalypso.org>
parents: 91
diff changeset
193 } else if (!strcmp(kw, "max-forwards")) {
a9137bdb6047 sip-in: make BYE Max-Forwards configurable
Mychaela Falconia <falcon@freecalypso.org>
parents: 91
diff changeset
194 handler = &handle_num;
a9137bdb6047 sip-in: make BYE Max-Forwards configurable
Mychaela Falconia <falcon@freecalypso.org>
parents: 91
diff changeset
195 var = &max_forwards;
a9137bdb6047 sip-in: make BYE Max-Forwards configurable
Mychaela Falconia <falcon@freecalypso.org>
parents: 91
diff changeset
196 set_id = 0;
154
e54b0a9e322f beginning of themwi-sip-out
Mychaela Falconia <falcon@freecalypso.org>
parents: 124
diff changeset
197 } else if (!strcmp(kw, "block-1900")) {
e54b0a9e322f beginning of themwi-sip-out
Mychaela Falconia <falcon@freecalypso.org>
parents: 124
diff changeset
198 handler = handle_bool;
e54b0a9e322f beginning of themwi-sip-out
Mychaela Falconia <falcon@freecalypso.org>
parents: 124
diff changeset
199 var = &block_1900_numbers;
e54b0a9e322f beginning of themwi-sip-out
Mychaela Falconia <falcon@freecalypso.org>
parents: 124
diff changeset
200 set_id = 0;
47
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 } else {
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 fprintf(stderr, "%s line %d: non-understood keyword \"%s\"\n",
89
e64d4d44025d sip-in/readconf.c: first step toward non-trivial settings
Mychaela Falconia <falcon@freecalypso.org>
parents: 68
diff changeset
203 config_file_pathname, st->lineno, kw);
47
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 exit(1);
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 }
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 if (st->set_mask & set_id) {
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 fprintf(stderr, "%s line %d: duplicate %s setting\n",
89
e64d4d44025d sip-in/readconf.c: first step toward non-trivial settings
Mychaela Falconia <falcon@freecalypso.org>
parents: 68
diff changeset
208 config_file_pathname, st->lineno, kw);
47
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 exit(1);
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 }
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 while (isspace(*cp))
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 cp++;
90
736c2d68595f sip-in/readconf.c: second step toward non-trivial settings
Mychaela Falconia <falcon@freecalypso.org>
parents: 89
diff changeset
213 handler(st, kw, cp, var);
47
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 st->set_mask |= set_id;
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 }
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 read_config_file()
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 {
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 FILE *inf;
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 struct parse_state pst;
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 char linebuf[256];
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 inf = fopen(config_file_pathname, "r");
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 if (!inf) {
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 perror(config_file_pathname);
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 exit(1);
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 }
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
228 pst.set_mask = 0;
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229 for (pst.lineno = 1; fgets(linebuf, sizeof linebuf, inf); pst.lineno++)
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230 process_line(&pst, linebuf);
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231 fclose(inf);
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232 if (pst.set_mask != 3) {
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
233 fprintf(stderr, "error: %s did not set all required settings\n",
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
234 config_file_pathname);
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
235 exit(1);
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
236 }
62f39c7cee15 themwi-sip-in skeleton started
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
237 }