FreeCalypso > hg > themwi-system-sw
annotate rtp-mgr/readconf.c @ 225:243ed87880a1
smpp-send: implement sending via local socket
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 05 Aug 2023 12:52:33 -0800 |
parents | b79d6334f543 |
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rev | line source |
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32
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1 /* |
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2 * In this module we implement the reading of /var/gsm/themwi-rtp.cfg: |
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3 * we parse and save the configured IP address and port range for each |
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4 * of our two sides, GSM and PSTN. |
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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 <sys/time.h> |
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10 #include <netinet/in.h> |
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11 #include <arpa/inet.h> |
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12 #include <ctype.h> |
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13 #include <stdio.h> |
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14 #include <stdint.h> |
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15 #include <stdlib.h> |
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16 #include <string.h> |
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17 #include <strings.h> |
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18 #include "struct.h" |
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19 |
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20 struct bind_range_cfg bind_range_gsm, bind_range_pstn; |
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21 |
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22 static char config_file_pathname[] = "/var/gsm/themwi-rtp.cfg"; |
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23 |
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24 struct parse_state { |
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25 int lineno; |
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26 int set_mask; |
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27 }; |
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28 |
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29 static void |
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30 handle_bind_ip(st, kw, brc, line) |
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31 struct parse_state *st; |
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32 char *kw, *line; |
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33 struct bind_range_cfg *brc; |
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34 { |
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35 char *cp, *np; |
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36 |
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37 for (cp = line; isspace(*cp); cp++) |
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38 ; |
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39 if (*cp == '\0' || *cp == '#') { |
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40 inv_syntax: fprintf(stderr, |
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41 "%s line %d: %s setting requires one argument\n", |
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42 config_file_pathname, st->lineno, kw); |
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43 exit(1); |
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44 } |
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45 for (np = cp; *cp && !isspace(*cp); cp++) |
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46 ; |
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47 if (*cp) |
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48 *cp++ = '\0'; |
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49 while (isspace(*cp)) |
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50 cp++; |
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51 if (*cp != '\0' && *cp != '#') |
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52 goto inv_syntax; |
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53 brc->bind_ip.s_addr = inet_addr(np); |
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54 if (brc->bind_ip.s_addr == INADDR_NONE) { |
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55 fprintf(stderr, |
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56 "%s line %d: invalid IP address argument \"%s\"\n", |
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57 config_file_pathname, st->lineno, np); |
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58 exit(1); |
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59 } |
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60 } |
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61 |
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62 static void |
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63 handle_port_range(st, kw, brc, line) |
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64 struct parse_state *st; |
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65 char *kw, *line; |
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66 struct bind_range_cfg *brc; |
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67 { |
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68 char *cp, *np1, *np2; |
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69 |
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70 for (cp = line; isspace(*cp); cp++) |
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71 ; |
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72 if (!isdigit(*cp)) { |
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73 inv_syntax: fprintf(stderr, |
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74 "%s line %d: %s setting requires two numeric arguments\n", |
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75 config_file_pathname, st->lineno, kw); |
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76 exit(1); |
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77 } |
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78 for (np1 = cp; isdigit(*cp); cp++) |
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79 ; |
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80 if (!isspace(*cp)) |
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81 goto inv_syntax; |
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82 while (isspace(*cp)) |
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83 cp++; |
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84 if (!isdigit(*cp)) |
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85 goto inv_syntax; |
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86 for (np2 = cp; isdigit(*cp); cp++) |
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87 ; |
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88 if (*cp && !isspace(*cp)) |
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89 goto inv_syntax; |
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90 while (isspace(*cp)) |
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91 cp++; |
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92 if (*cp != '\0' && *cp != '#') |
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93 goto inv_syntax; |
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94 brc->port_range_start = atoi(np1); |
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95 brc->port_range_end = atoi(np2); |
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96 if (brc->port_range_start & 1) { |
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97 fprintf(stderr, "%s line %d: start port must be even\n", |
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98 config_file_pathname, st->lineno); |
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99 exit(1); |
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100 } |
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101 if (!(brc->port_range_end & 1)) { |
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102 fprintf(stderr, "%s line %d: end port must be odd\n", |
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103 config_file_pathname, st->lineno); |
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104 exit(1); |
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105 } |
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106 if (brc->port_range_end <= brc->port_range_start) { |
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107 fprintf(stderr, |
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108 "%s line %d: end port must be greater than start port\n", |
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109 config_file_pathname, st->lineno); |
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110 exit(1); |
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111 } |
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112 brc->port_next = brc->port_range_start; |
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113 brc->port_tries = (brc->port_range_end - brc->port_range_start + 1) / 2; |
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114 } |
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115 |
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116 static void |
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117 process_line(st, line) |
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118 struct parse_state *st; |
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119 char *line; |
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120 { |
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121 char *cp, *np; |
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122 void (*handler)(); |
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123 struct bind_range_cfg *ipside; |
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124 int set_id; |
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125 |
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126 if (!index(line, '\n')) { |
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127 fprintf(stderr, "%s line %d: too long or missing newline\n", |
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128 config_file_pathname, st->lineno); |
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129 exit(1); |
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130 } |
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131 for (cp = line; isspace(*cp); cp++) |
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132 ; |
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133 if (*cp == '\0' || *cp == '#') |
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134 return; |
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135 for (np = cp; *cp && !isspace(*cp); cp++) |
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136 ; |
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137 if (*cp) |
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138 *cp++ = '\0'; |
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139 if (!strcmp(np, "gsm-ip-addr")) { |
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140 handler = handle_bind_ip; |
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141 ipside = &bind_range_gsm; |
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142 set_id = 1; |
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143 } else if (!strcmp(np, "gsm-port-range")) { |
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144 handler = handle_port_range; |
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145 ipside = &bind_range_gsm; |
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146 set_id = 2; |
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147 } else if (!strcmp(np, "pstn-ip-addr")) { |
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148 handler = handle_bind_ip; |
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149 ipside = &bind_range_pstn; |
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150 set_id = 4; |
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151 } else if (!strcmp(np, "pstn-port-range")) { |
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152 handler = handle_port_range; |
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153 ipside = &bind_range_pstn; |
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154 set_id = 8; |
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155 } else { |
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156 fprintf(stderr, "%s line %d: non-understood keyword \"%s\"\n", |
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157 config_file_pathname, st->lineno, np); |
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158 exit(1); |
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159 } |
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160 if (st->set_mask & set_id) { |
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161 fprintf(stderr, "%s line %d: duplicate %s setting\n", |
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162 config_file_pathname, st->lineno, np); |
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163 exit(1); |
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164 } |
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165 handler(st, np, ipside, cp); |
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166 st->set_mask |= set_id; |
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167 } |
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168 |
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169 read_config_file() |
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170 { |
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171 FILE *inf; |
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172 struct parse_state pst; |
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173 char linebuf[256]; |
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174 |
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175 inf = fopen(config_file_pathname, "r"); |
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176 if (!inf) { |
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177 perror(config_file_pathname); |
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178 exit(1); |
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179 } |
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180 pst.set_mask = 0; |
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181 for (pst.lineno = 1; fgets(linebuf, sizeof linebuf, inf); pst.lineno++) |
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182 process_line(&pst, linebuf); |
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183 fclose(inf); |
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184 if (pst.set_mask != 15) { |
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185 fprintf(stderr, "error: %s did not set all required settings\n", |
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186 config_file_pathname); |
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187 exit(1); |
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188 } |
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189 } |