osdep/strsep.c

   1 /* strsep implementation for systems that do not have it in libc */
   2
   3 #include <stdio.h>
   4 #include <string.h>
   5
   6 #include "config.h"
   7
   8 #ifndef HAVE_STRSEP
   9 char *strsep(char **stringp, const char *delim) {
  10   char *begin, *end;
  11
  12   begin = *stringp;
  13   if(begin == NULL)
  14     return NULL;
  15
  16   if(delim[0] == '\0' || delim[1] == '\0') {
  17     char ch = delim[0];
  18
  19     if(ch == '\0')
  20       end = NULL;
  21     else {
  22       if(*begin == ch)
  23         end = begin;
  24       else if(*begin == '\0')
  25         end = NULL;
  26       else
  27         end = strchr(begin + 1, ch);
  28     }
  29   }
  30   else
  31     end = strpbrk(begin, delim);
  32
  33   if(end) {
  34     *end++ = '\0';
  35     *stringp = end;
  36   }
  37   else
  38     *stringp = NULL;
  39
  40   return begin;
  41 }
  42 #endif