diff options
author | Guy Harris <guy@alum.mit.edu> | 1999-10-01 21:41:38 +0000 |
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committer | Guy Harris <guy@alum.mit.edu> | 1999-10-01 21:41:38 +0000 |
commit | 056ae6eb5e277c48141771482fd01c6d7ba2a62d (patch) | |
tree | bda5cb48f05dc4a8362237c6a2c20a77b3bf86f5 /strncasecmp.c | |
parent | 57772323ad515e8399a33eccb41ca2156a5d44b3 (diff) |
Uwe Girlich's patch to handle OSes (e.g., SINIX) that lack
"strncasecmp()" or "mkstemp()"; add in source to the GNU "libc"
versions, and have the "configure" script check for the routines in
question and set up the Makefile to build from our versions if they're
missing.
svn path=/trunk/; revision=745
Diffstat (limited to 'strncasecmp.c')
-rw-r--r-- | strncasecmp.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/strncasecmp.c b/strncasecmp.c new file mode 100644 index 0000000000..a679e85c14 --- /dev/null +++ b/strncasecmp.c @@ -0,0 +1,46 @@ +/* Copyright (C) 1992, 1996 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <ansidecl.h> +#include <string.h> +#include <ctype.h> + +/* Compare no more than N characters of S1 and S2, + ignoring case, returning less than, equal to or + greater than zero if S1 is lexicographically less + than, equal to or greater than S2. */ +int +strncasecmp (const char *s1, const char *s2, size_t n) +{ + register const unsigned char *p1 = (const unsigned char *) s1; + register const unsigned char *p2 = (const unsigned char *) s2; + unsigned char c1, c2; + + if (p1 == p2 || n == 0) + return 0; + + do + { + c1 = tolower (*p1++); + c2 = tolower (*p2++); + if (c1 == '\0' || c1 != c2) + return c1 - c2; + } while (--n > 0); + + return c1 - c2; +} |