inivar.c File Reference

00025 {
00026   int t;
00027   char _variable[INIFILE_MAX_LINELEN] = "";
00028   char *variable = 0;
00029   char _section[INIFILE_MAX_LINELEN] = "";
00030   char *section = 0;
00031   char INIFILE[256] = "emc.ini";
00032   FILE *fp;
00033   const char *inistring;
00034 
00035   /* process command line args, indexing argv[] from [1] */
00036   for (t = 1; t < argc; t++) {
00037     if (!strcmp(argv[t], "-ini")) {
00038       if (t == argc - 1) {
00039         /* no arg following -ini, so abort */
00040         fprintf(stderr,
00041                 "%s: ini file not specified after -ini\n",
00042                 argv[0]);
00043         exit(1);
00044       }
00045       else {
00046         strcpy(INIFILE, argv[t+1]);
00047         t++;            /* step over following arg */
00048       }
00049     }
00050     else if (!strcmp(argv[t], "-var")) {
00051       if (t == argc - 1) {
00052         /* no arg following -var, so abort */
00053         fprintf(stderr,
00054                 "%s: variable name not specified after -var\n",
00055                 argv[0]);
00056         exit(1);
00057       }
00058       else {
00059         strcpy(_variable, argv[t+1]);
00060         variable = _variable;
00061         t++;            /* step over following arg */
00062       }
00063     }
00064     else if (!strcmp(argv[t], "-sec")) {
00065       if (t == argc - 1) {
00066         /* no arg following -sec, so abort */
00067         fprintf(stderr,
00068                 "%s: section name not specified after -sec\n",
00069                 argv[0]);
00070         exit(1);
00071       }
00072       else {
00073         strcpy(_section, argv[t+1]);
00074         section = _section;
00075         t++;            /* step over following arg */
00076       }
00077     }
00078     else {
00079       /* invalid argument */
00080       fprintf(stderr,
00081               "%s: -var <variable> {-sec <section>} {<-ini inifile>}\n",
00082               argv[0]);
00083       exit(1);
00084     }
00085   }
00086 
00087   /* check that variable was supplied */
00088   if (0 == variable) {
00089     fprintf(stderr,
00090             "%s: no variable supplied\n",
00091             argv[0]);
00092     exit(1);
00093   }
00094 
00095   /* open the inifile */
00096   if (NULL == (fp = fopen(INIFILE, "r"))) {
00097     fprintf(stderr,
00098             "%s: can't open %s\n",
00099             argv[0], INIFILE);
00100     exit(1);
00101   }
00102 
00103   inistring = iniFind(fp, variable, section);
00104   if (NULL != inistring) {
00105     printf("%s\n", inistring);
00106   }
00107 
00108   fclose(fp);
00109 
00110   exit(0);
00111 }
inivar.c File Reference

Functions

Function Documentation

Functions
int	main (int argc, char *argv[])