src/string/strncasecmp.c

   1 #include <strings.h>
   2 #include <ctype.h>
   3 #include "libc.h"
   4
   5 int strncasecmp(const char *_l, const char *_r, size_t n)
   6 {
   7         const unsigned char *l=(void *)_l, *r=(void *)_r;
   8         if (!n--) return 0;
   9         for (; *l && *r && n && (*l == *r || tolower(*l) == tolower(*r)); l++, r++, n--);
  10         return tolower(*l) - tolower(*r);
  11 }
  12
  13 int __strncasecmp_l(const char *l, const char *r, size_t n, locale_t loc)
  14 {
  15         return strncasecmp(l, r, n);
  16 }
  17
  18 weak_alias(__strncasecmp_l, strncasecmp_l);