simplecfg.c

   1 #include <stdio.h>
   2 #include <string.h>
   3 FILE* cfg_open(const char *fn) { return fopen(fn, "r"); }
   4 void  cfg_close(FILE*f) { fclose(f); }
   5 char* cfg_getstr(FILE *f, const char *key, char*  buf, size_t bufsize) {
   6         fseek(f, 0, SEEK_SET);
   7         size_t l = strlen(key);
   8         while(fgets(buf, bufsize, f)) {
   9                 if(!strncmp(buf, key, l) && buf[l] == '=') {
  10                         size_t x = l;
  11                         while(buf[++x] != '\n');
  12                         buf[x] = 0;
  13                         memmove(buf, buf + l + 1, x - l);
  14                         return buf;
  15                 }
  16         }
  17         *buf = 0;
  18         return 0;
  19 }
  20 int cfg_getint(FILE *f, const char *key) {
  21         char buf[64];
  22         char *res = cfg_getstr(f, key, buf, sizeof buf);
  23         if(res) return atoi(res);
  24         return 0;
  25 }