diff options
Diffstat (limited to 'sysdeps/generic/strcasecmp.c')
-rw-r--r-- | sysdeps/generic/strcasecmp.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/sysdeps/generic/strcasecmp.c b/sysdeps/generic/strcasecmp.c new file mode 100644 index 0000000..3ae3d67 --- /dev/null +++ b/sysdeps/generic/strcasecmp.c @@ -0,0 +1,74 @@ +/* Copyright (C) 1991,1992,1995,1996,1997,2001,2002, 2004 + 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <ctype.h> +#include <string.h> + +#ifndef _LIBC +# define __strcasecmp strcasecmp +# define TOLOWER(Ch) tolower (Ch) +#else +# include <locale/localeinfo.h> +# ifdef USE_IN_EXTENDED_LOCALE_MODEL +# define __strcasecmp __strcasecmp_l +# endif +# define TOLOWER(Ch) __tolower_l ((Ch), loc) +#endif + +#ifdef USE_IN_EXTENDED_LOCALE_MODEL +# define LOCALE_PARAM , loc +# define LOCALE_PARAM_DECL __locale_t loc; +#else +# define LOCALE_PARAM +# define LOCALE_PARAM_DECL +#endif + +/* Compare 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 +__strcasecmp (s1, s2 LOCALE_PARAM) + const char *s1; + const char *s2; + LOCALE_PARAM_DECL +{ +#if defined _LIBC && !defined USE_IN_EXTENDED_LOCALE_MODEL + __locale_t loc = _NL_CURRENT_LOCALE; +#endif + const unsigned char *p1 = (const unsigned char *) s1; + const unsigned char *p2 = (const unsigned char *) s2; + int result; + + if (p1 == p2) + return 0; + + while ((result = TOLOWER (*p1) - TOLOWER (*p2++)) == 0) + if (*p1++ == '\0') + break; + + return result; +} +#ifndef __strcasecmp +libc_hidden_def (__strcasecmp) +weak_alias (__strcasecmp, strcasecmp) +#endif |