reactos/sdk/lib/crt/string/strtok_s.c

   1 /* Taken from Wine Staging msvcrt/string.c */
   2
   3 #include <precomp.h>
   4 #include <internal/wine/msvcrt.h>
   5
   6 /*********************************************************************
   7  *              strtok_s  (MSVCRT.@)
   8  */
   9 char * CDECL strtok_s(char *str, const char *delim, char **ctx)
  10 {
  11     if (!MSVCRT_CHECK_PMT(delim != NULL)) return NULL;
  12     if (!MSVCRT_CHECK_PMT(ctx != NULL)) return NULL;
  13     if (!MSVCRT_CHECK_PMT(str != NULL || *ctx != NULL)) return NULL;
  14
  15     if(!str)
  16         str = *ctx;
  17
  18     while(*str && strchr(delim, *str))
  19         str++;
  20     if(!*str)
  21     {
  22         *ctx = str;
  23         return NULL;
  24     }
  25
  26     *ctx = str+1;
  27     while(**ctx && !strchr(delim, **ctx))
  28         (*ctx)++;
  29     if(**ctx)
  30         *(*ctx)++ = 0;
  31
  32     return str;
  33 }