lib/util Move simple string routines into common code.

Signed-off-by: Andrew Tridgell <tridge@samba.org>

1 files changed, 54 insertions, 0 deletions

diff --git a/lib/util/util_str_common.c b/lib/util/util_str_common.c
new file mode 100644
index 0000000000..e003d73d74
--- /dev/null
+++ b/lib/util/util_str_common.c
@@ -0,0 +1,54 @@
+/*
+   Unix SMB/CIFS implementation.
+   Samba utility functions
+
+   Copyright (C) Andrew Tridgell 1992-2001
+   Copyright (C) Simo Sorce      2001-2002
+   Copyright (C) Martin Pool     2003
+   Copyright (C) James Peach	 2005
+
+   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 3 of the License, 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+
+/**
+Do a case-insensitive, whitespace-ignoring string compare.
+**/
+_PUBLIC_ int strwicmp(const char *psz1, const char *psz2)
+{
+	/* if BOTH strings are NULL, return TRUE, if ONE is NULL return */
+	/* appropriate value. */
+	if (psz1 == psz2)
+		return (0);
+	else if (psz1 == NULL)
+		return (-1);
+	else if (psz2 == NULL)
+		return (1);
+
+	/* sync the strings on first non-whitespace */
+	while (1) {
+		while (isspace((int)*psz1))
+			psz1++;
+		while (isspace((int)*psz2))
+			psz2++;
+		if (toupper_ascii((unsigned char)*psz1) != toupper_ascii((unsigned char)*psz2)
+		    || *psz1 == '\0'
+		    || *psz2 == '\0')
+			break;
+		psz1++;
+		psz2++;
+	}
+	return (*psz1 - *psz2);
+}