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-rw-r--r--libmailutils/cstrcasecmp.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/libmailutils/cstrcasecmp.c b/libmailutils/cstrcasecmp.c
new file mode 100644
index 000000000..4baeae220
--- /dev/null
+++ b/libmailutils/cstrcasecmp.c
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+/* This file is part of GNU Mailutils
+ Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+ This 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 3 of the License, or (at your option) any later version.
+
+ This 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 this library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+#include <stddef.h>
+#include <mailutils/cctype.h>
+
+int
+mu_c_strcasecmp (const char *a, const char *b)
+{
+ int d = 0;
+ for (; d == 0; a++, b++)
+ {
+ int ac = (int) *a;
+ int bc = (int) *b;
+ if (ac == 0 || bc == 0)
+ return ac - bc;
+ if (mu_isascii (ac) && mu_isascii (bc))
+ d = mu_toupper (ac) - mu_toupper (bc);
+ else
+ d = ac - bc;
+ }
+ return d;
+}
+
+int
+mu_c_strncasecmp (const char *a, const char *b, size_t n)
+{
+ int d = 0;
+ for (; d == 0 && n > 0; a++, b++, n--)
+ {
+ int ac = (int) *a;
+ int bc = (int) *b;
+ if (ac == 0 || bc == 0)
+ return ac - bc;
+ if (mu_isascii (ac) && mu_isascii (bc))
+ d = mu_toupper (ac) - mu_toupper (bc);
+ else
+ d = ac - bc;
+ }
+ return d;
+}

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