contrib/opie/libmissing/strncasecmp.c

   1 /* strncasecmp.c: A replacement for the strncasecmp function
   2
   3 %%% copyright-cmetz
   4 This software is Copyright 1996 by Craig Metz, All Rights Reserved.
   5 The Inner Net License Version 2 applies to this software.
   6 You should have received a copy of the license with this software. If
   7 you didn't get a copy, you may request one from <license@inner.net>.
   8
   9         History:
  10
  11         Created by cmetz for OPIE 2.2.
  12 */
  13 #include "opie_cfg.h"
  14 #include "opie.h"
  15
  16 int strncasecmp FUNCTION((s1, s2, n), unsigned char *s1 AND unsigned char *s2 AND int n)
  17 {
  18         unsigned char c1, c2;
  19         while(*s1 && *s2 && n--) {
  20                 c1 = ((*s1 >= 'A') && (*s1 <= 'Z')) ? (*s1++) + ('a' - 'A') : (*s1++);
  21                 c2 = ((*s2 >= 'A') && (*s2 <= 'Z')) ? (*s2++) + ('a' - 'A') : (*s2++);
  22                 if (c1 != c2)
  23                         return (c1 > c2) ? 1 : -1;
  24         }
  25         if (*s1 && !*s2)
  26                 return 1;
  27         if (!*s1 && *s2)
  28                 return -1;
  29         return 0;
  30 }