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         "",                             /* dummy caller id */
  30         0,                              /* by default use priority 0 */
  31         "lcr@your.machine",             /* source mail adress */
  32         "/var/tmp",                     /* path of lock files */
  33         0700,                           /* rights of lcr admin socket */
  34         0                               /* enable gsm */
  35 };
  36
  37 char options_error[256];
  38
  39 /* read options
  40  *
  41  * read options from options.conf
  42  */
  43 int read_options(void)
  44 {
  45         FILE *fp=NULL;
  46         char filename[128];
  47         char *p;
  48         char option[32];
  49         char param[256];
  50         unsigned int line,i;
  51         char buffer[256];
  52
  53         SPRINT(filename, "%s/options.conf", CONFIG_DATA);
  54
  55         if (!(fp=fopen(filename,"r"))) {
  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                 line++;
  63                 buffer[sizeof(buffer)-1]=0;
  64                 if (buffer[0]) buffer[strlen(buffer)-1]=0;
  65                 p=buffer;
  66
  67                 while(*p <= 32) { /* skip spaces */
  68                         if (*p == 0)
  69                                 break;
  70                         p++;
  71                 }
  72                 if (*p==0 || *p=='#') /* ignore comments and empty line */
  73                         continue;
  74
  75                 option[0]=0;
  76                 i=0; /* read option */
  77                 while(*p > 32) {
  78                         if (i+1 >= sizeof(option)) {
  79                                 SPRINT(options_error, "Error in %s (line %d): option too long.\n",filename,line);
  80                                 goto error;
  81                         }
  82                         option[i+1] = '\0';
  83                         option[i++] = *p++;
  84                 }
  85
  86                 while(*p <= 32) { /* skip spaces */
  87                         if (*p == 0)
  88                                 break;
  89                         p++;
  90                 }
  91
  92                 param[0]=0;
  93                 if (*p!=0 && *p!='#') { /* param */
  94                         i=0; /* read param */
  95                         while(*p > 31) {
  96                                 if (i+1 >= sizeof(param)) {
  97                                         SPRINT(options_error, "Error in %s (line %d): param too long.\n",filename,line);
  98                                         goto error;
  99                                 }
 100                                 param[i+1] = '\0';
 101                                 param[i++] = *p++;
 102                         }
 103                 }
 104
 105                 /* at this point we have option and param */
 106
 107                 /* check option */
 108                 if (!strcmp(option,"nt_if") || !strcmp(option,"te_if")) {
 109                         SPRINT(options_error, "Error in %s (line %d): obsolete option %s. Use multiple 'port' options to define ports to use.\n",filename,line,option);
 110                         goto error;
 111                 } else
 112                 if (!strcmp(option,"debug")) {
 113                         if (param[0]==0) {
 114                                 SPRINT(options_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line,option);
 115                                 goto error;
 116                         }
 117                         options.deb = strtol(param, NULL, 0);
 118
 119                 } else
 120                 if (!strcmp(option,"log")) {
 121                         if (param[0]==0) {
 122                                 SPRINT(options_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line, option);
 123                                 goto error;
 124                         }
 125                         SCPY(options.log, param);
 126
 127                 } else
 128                 if (!strcmp(option,"alaw")) {
 129                         options.law = 'a';
 130
 131                 } else
 132                 if (!strcmp(option,"ulaw")) {
 133                         options.law = 'u';
 134
 135                 } else
 136                 if (!strcmp(option,"tones_dir")) {
 137                         if (param[0]==0) {
 138                                 SPRINT(options_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line,option);
 139                                 goto error;
 140                         }
 141                         if (param[strlen(param)-1] == '/')
 142                                 param[strlen(param)-1]=0;
 143                         SCPY(options.tones_dir, param);
 144
 145                 } else
 146                 if (!strcmp(option,"fetch_tones")) {
 147                         if (param[0]==0) {
 148                                 SPRINT(options_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line,option);
 149                                 goto error;
 150                         }
 151                         if (param[strlen(param)-1] == '/')
 152                                 param[strlen(param)-1]=0;
 153                         SCPY(options.fetch_tones, param);
 154
 155                 } else
 156                 if (!strcmp(option,"extensions_dir")) {
 157                         // obsolete
 158                 } else
 159                 if (!strcmp(option,"national")) {
 160                         SCPY(options.national, param);
 161
 162                 } else
 163                 if (!strcmp(option,"international")) {
 164                         SCPY(options.international, param);
 165
 166                 } else
 167                 if (!strcmp(option,"dummyid")) {
 168                         SCPY(options.dummyid, param);
 169
 170                 } else
 171                 if (!strcmp(option,"dsptones")) {
 172                         SPRINT(options_error, "Error in %s (line %d): parameter 'dsptones' is obsolete. Just define the tones (american,german,oldgerman) at 'tones_dir' option.\n",filename,line,option);
 173                         goto error;
 174                 } else
 175                 if (!strcmp(option,"schedule")) {
 176                         options.schedule = atoi(param);
 177                         if (options.schedule < 0) {
 178                                 SPRINT(options_error, "Error in %s (line %d): parameter for option %s must be at least '0'.\n", filename,line,option);
 179                                 goto error;
 180                         }
 181                         if (options.schedule > 99) {
 182                                 SPRINT(options_error, "Error in %s (line %d): parameter for option %s must be '99' or less.\n", filename,line,option);
 183                                 goto error;
 184                         }
 185
 186                 } else
 187                 if (!strcmp(option,"email")) {
 188                         if (param[0]==0) {
 189                                 SPRINT(options_error, "Error in %s (line %d): parameter for option %s missing.\n", filename,line,option);
 190                                 goto error;
 191                         }
 192                         SCPY(options.email, param);
 193
 194                 } else
 195                 if (!strcmp(option,"lock")) {
 196                         if (param[0]==0) {
 197                                 SPRINT(options_error, "Error in %s (line %d): parameter for option %s missing.\n",filename,line,option);
 198                                 goto error;
 199                         }
 200                         if (param[strlen(param)-1] == '/')
 201                                 param[strlen(param)-1]=0;
 202                         SCPY(options.lock, param);
 203
 204                 } else
 205                 if (!strcmp(option,"socketrights")) {
 206                         options.socketrights = strtol(param, NULL, 0);
 207                 } else
 208                 if (!strcmp(option,"gsm")) {
 209                         options.gsm = 1;
 210                 } else {
 211                         SPRINT(options_error, "Error in %s (line %d): wrong option keyword %s.\n", filename,line,option);
 212                         goto error;
 213                 }
 214         }
 215
 216         if (!options.tones_dir[0]) {
 217                 SPRINT(options_error, "Error in %s (line %d): option 'tones_dir' with parameter missing.\n", filename);
 218                 goto error;
 219         }
 220         if (fp) fclose(fp);
 221         return(1);
 222 error:
 223         if (fp) fclose(fp);
 224         return(0);
 225 }
 226
 227