options.c

   1 /*****************************************************************************\
   2 **                                                                           **
   3 ** PBX4Linux                                                                 **
   4 **                                                                           **
   5 **---------------------------------------------------------------------------**
   6 ** Copyright: Andreas Eversberg                                              **
   7 **                                                                           **
   8 ** reading options.conf and filling structure                                **
   9 **                                                                           **
  10 \*****************************************************************************/
  11
  12 #include "stdio.h"
  13 #include "string.h"
  14 #include "stdarg.h"
  15 #include "unistd.h"
  16 #include "stdlib.h"
  17 #include "macro.h"
  18 #include "extension.h"
  19 #include "options.h"
  20
  21 struct options options = {
  22         "/usr/local/lcr/log",           /* log file */
  23         0x0000,                         /* debug mode */
  24         'a',                            /* a-law */
  25         "0",                            /* national prefix */
  26         "00",                           /* international prefix */
  27         "tones_american",               /* directory of tones */
  28         "",                             /* directories of tones to fetch */
  29         "extensions",                   /* directory of extensions */
  30         "",                             /* dummy caller id */
  31         0,                              /* use tones by dsp.o */
  32         0,                              /* by default use priority 0 */
  33         "lcr@your.machine"              /* source mail adress */
  34 };
  35
  36 char options_error[256];
  37
  38 /* read options
  39  *
  40  * read options from options.conf
  41  */
  42 int read_options(void)
  43 {
  44         FILE *fp=NULL;
  45         char filename[128];
  46         char *p;
  47         char option[32];
  48         char param[256];
  49         unsigned int line,i;
  50         char buffer[256];
  51
  52         SPRINT(filename, "%s/options.conf", INSTALL_DATA);
  53
  54         if (!(fp=fopen(filename,"r")))
  55         {
  56                 SPRINT(options_error, "Cannot open %s\n",filename);
  57                 return(0);
  58         }
  59
  60         line=0;
  61         while((fgets(buffer,sizeof(buffer),fp)))
  62         {
  63                 line++;
  64                 buffer[sizeof(buffer)-1]=0;
  65                 if (buffer[0]) buffer[strlen(buffer)-1]=0;
  66                 p=buffer;
  67
  68                 while(*p <= 32) /* skip spaces */
  69                 {
  70                         if (*p == 0)
  71                                 break;
  72                         p++;
  73                 }
  74                 if (*p==0 || *p=='#') /* ignore comments and empty line */
  75                         continue;
  76
  77                 option[0]=0;
  78                 i=0; /* read option */
  79                 while(*p > 32)
  80                 {
  81                         if (i+1 >= sizeof(option))
  82                         {
  83                                 SPRINT(options_error, "Error in %s (line %d): option too long.\n",filename,line);
  84                                 goto error;
  85                         }
  86                         option[i+1] = '\0';
  87                         option[i++] = *p++;
  88                 }
  89
  90                 while(*p <= 32) /* skip spaces */
  91                 {
  92                         if (*p == 0)
  93                                 break;
  94                         p++;
  95                 }
  96
  97                 param[0]=0;
  98                 if (*p!=0 && *p!='#') /* param */
  99                 {
 100                         i=0; /* read param */
 101                         while(*p > 31)
 102                         {
 103                                 if (i+1 >= sizeof(param))
 104                                 {
 105                                         SPRINT(options_error, "Error in %s (line %d): param too long.\n",filename,line);
 106                                         goto error;
 107                                 }
 108                                 param[i+1] = '\0';
 109                                 param[i++] = *p++;
 110                         }
 111                 }
 112
 113                 /* at this point we have option and param */
 114
 115                 /* check option */
 116                 if (!strcmp(option,"nt_if") || !strcmp(option,"te_if"))
 117                 {
 118                         SPRINT(options_error, "Error in %s (line %d): obsolete option %s. Use multiple 'port' options to define ports to use.\n",filename,line,option);
 119                         goto error;
 120                 } else
 121                 if (!strcmp(option,"debug"))
 122                 {
 123                         if (param[0]==0)
 124                         {
 125                                 SPRINT(options_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line,option);
 126                                 goto error;
 127                         }
 128                         options.deb = strtol(param, NULL, 0);
 129
 130                 } else
 131                 if (!strcmp(option,"log"))
 132                 {
 133                         if (param[0]==0)
 134                         {
 135                                 SPRINT(options_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 136                                 goto error;
 137                         }
 138                         SCPY(options.log, param);
 139
 140                 } else
 141                 if (!strcmp(option,"alaw"))
 142                 {
 143                         options.law = 'a';
 144
 145                 } else
 146                 if (!strcmp(option,"ulaw"))
 147                 {
 148                         options.law = 'u';
 149
 150                 } else
 151                 if (!strcmp(option,"tones_dir"))
 152                 {
 153                         if (param[0]==0)
 154                         {
 155                                 SPRINT(options_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line,option);
 156                                 goto error;
 157                         }
 158                         if (param[strlen(param)-1] == '/')
 159                                 param[strlen(param)-1]=0;
 160                         SCPY(options.tones_dir, param);
 161
 162                 } else
 163                 if (!strcmp(option,"fetch_tones"))
 164                 {
 165                         if (param[0]==0)
 166                         {
 167                                 SPRINT(options_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line,option);
 168                                 goto error;
 169                         }
 170                         if (param[strlen(param)-1] == '/')
 171                                 param[strlen(param)-1]=0;
 172                         SCPY(options.fetch_tones, param);
 173
 174                 } else
 175                 if (!strcmp(option,"extensions_dir"))
 176                 {
 177                         if (param[0]==0)
 178                         {
 179                                 SPRINT(options_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line,option);
 180                                 goto error;
 181                         }
 182                         if (param[strlen(param)-1] == '/')
 183                                 param[strlen(param)-1]=0;
 184                         SCPY(options.extensions_dir, param);
 185
 186                 } else
 187                 if (!strcmp(option,"national"))
 188                 {
 189                         SCPY(options.national, param);
 190
 191                 } else
 192                 if (!strcmp(option,"international"))
 193                 {
 194                         SCPY(options.international, param);
 195
 196                 } else
 197                 if (!strcmp(option,"dummyid"))
 198                 {
 199                         SCPY(options.dummyid, param);
 200
 201                 } else
 202                 if (!strcmp(option,"dsptones"))
 203                 {
 204                         if (!strcasecmp(param, "american"))
 205                                 options.dsptones = DSP_AMERICAN;
 206                         else if (!strcasecmp(param, "german"))
 207                                 options.dsptones = DSP_GERMAN;
 208                         else if (!strcasecmp(param, "oldgerman"))
 209                                 options.dsptones = DSP_OLDGERMAN;
 210                         else if (!strcasecmp(param, "none"))
 211                                 options.dsptones = DSP_NONE;
 212                         else {
 213                                 SPRINT(options_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line,option);
 214                                 goto error;
 215                         }
 216
 217                 } else
 218                 if (!strcmp(option,"schedule"))
 219                 {
 220                         options.schedule = atoi(param);
 221                         if (options.schedule < 0)
 222                         {
 223                                 SPRINT(options_error, "Error in %s (line %d): parameter for option %s must be at least '0'.\n", filename,line,option);
 224                                 goto error;
 225                         }
 226                         if (options.schedule > 99)
 227                         {
 228                                 SPRINT(options_error, "Error in %s (line %d): parameter for option %s must be '99' or less.\n", filename,line,option);
 229                                 goto error;
 230                         }
 231
 232                 } else
 233                 if (!strcmp(option,"email"))
 234                 {
 235                         if (param[0]==0)
 236                         {
 237                                 SPRINT(options_error, "Error in %s (line %d): parameter for option %s missing.\n", filename,line,option);
 238                                 goto error;
 239                         }
 240                         SCPY(options.email, param);
 241
 242                 } else
 243                 {
 244                         SPRINT(options_error, "Error in %s (line %d): wrong option keyword %s.\n", filename,line,option);
 245                         goto error;
 246                 }
 247         }
 248
 249 #if 0
 250         if (!options.dsptones)
 251         {
 252                 SPRINT(options_error, "Error in %s (line %d): option 'dsptones' missing.\n", filename);
 253                 goto error;
 254         }
 255 #endif
 256         if (!options.tones_dir[0])
 257         {
 258                 SPRINT(options_error, "Error in %s (line %d): option 'tones_dir' with parameter missing.\n", filename);
 259                 goto error;
 260         }
 261         if (fp) fclose(fp);
 262         return(1);
 263 error:
 264         if (fp) fclose(fp);
 265         return(0);
 266 }
 267
 268