diff options
| author | christos <christos@NetBSD.org> | 2016-01-13 03:15:29 +0000 |
|---|---|---|
| committer | christos <christos@NetBSD.org> | 2016-01-13 03:15:29 +0000 |
| commit | eec8fc77c4e0eb79f8d0dce344cf1200ede12bfe (patch) | |
| tree | 0f84674d79cb0a0e6763dec26eb82850f961590f /external/gpl2/diffutils/dist/lib/strcasecmp.c | |
| parent | ceb99fff3a910a1efe2f446026eaf8d0ed4086b2 (diff) | |
Import latest gpl2 diffutils
Diffstat (limited to 'external/gpl2/diffutils/dist/lib/strcasecmp.c')
| -rw-r--r-- | external/gpl2/diffutils/dist/lib/strcasecmp.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/external/gpl2/diffutils/dist/lib/strcasecmp.c b/external/gpl2/diffutils/dist/lib/strcasecmp.c new file mode 100644 index 00000000000..830578ffa1c --- /dev/null +++ b/external/gpl2/diffutils/dist/lib/strcasecmp.c @@ -0,0 +1,68 @@ +/* $NetBSD: strcasecmp.c,v 1.1.1.1 2016/01/13 03:15:30 christos Exp $ */ + +/* strcasecmp.c -- case insensitive string comparator + Copyright (C) 1998, 1999 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#if HAVE_CONFIG_H +# include <config.h> +#endif + +#ifdef LENGTH_LIMIT +# define STRXCASECMP_FUNCTION strncasecmp +# define STRXCASECMP_DECLARE_N , size_t n +# define LENGTH_LIMIT_EXPR(Expr) Expr +#else +# define STRXCASECMP_FUNCTION strcasecmp +# define STRXCASECMP_DECLARE_N /* empty */ +# define LENGTH_LIMIT_EXPR(Expr) 0 +#endif + +#include <sys/types.h> +#include <ctype.h> + +#define TOLOWER(Ch) (isupper (Ch) ? tolower (Ch) : (Ch)) + +/* Compare {{no more than N characters of }}strings 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 +STRXCASECMP_FUNCTION (const char *s1, const char *s2 STRXCASECMP_DECLARE_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 || LENGTH_LIMIT_EXPR (n == 0)) + return 0; + + do + { + c1 = TOLOWER (*p1); + c2 = TOLOWER (*p2); + + if (LENGTH_LIMIT_EXPR (--n == 0) || c1 == '\0') + break; + + ++p1; + ++p2; + } + while (c1 == c2); + + return c1 - c2; +} |
