src/misc/getsubopt.c

   1 #include <stdlib.h>
   2 #include <string.h>
   3
   4 int getsubopt(char **opt, char *const *keys, char **val)
   5 {
   6         char *s = *opt;
   7         int i;
   8
   9         *val = NULL;
  10         *opt = strchr(s, ',');
  11         if (*opt) *(*opt)++ = 0;
  12         else *opt = s + strlen(s);
  13
  14         for (i=0; keys[i]; i++) {
  15                 size_t l = strlen(keys[i]);
  16                 if (strncmp(keys[i], s, l)) continue;
  17                 if (s[l] == '=')
  18                         *val = s + l + 1;
  19                 else if (s[l]) continue;
  20                 return i;
  21         }
  22         return -1;
  23 }