Import sendmail 8.12.2

1 files changed, 101 insertions, 0 deletions

diff --git a/contrib/sendmail/libsm/strrevcmp.c b/contrib/sendmail/libsm/strrevcmp.c
new file mode 100644
index 0000000..d0ed630
--- /dev/null
+++ b/contrib/sendmail/libsm/strrevcmp.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2001 Sendmail, Inc. and its suppliers.
+ *	All rights reserved.
+ *
+ * By using this file, you agree to the terms and conditions set
+ * forth in the LICENSE file which can be found at the top level of
+ * the sendmail distribution.
+ *
+ */
+
+#include <sm/gen.h>
+SM_RCSID("@(#)$Id: strrevcmp.c,v 1.5 2001/09/11 04:04:49 gshapiro Exp $")
+
+#include <sm/config.h>
+#include <sm/string.h>
+#include <string.h>
+
+/* strcasecmp.c */
+extern const unsigned char charmap[];
+
+/*
+**  SM_STRREVCASECMP -- compare two strings starting at the end (ignore case)
+**
+**	Parameters:
+**		s1 -- first string.
+**		s2 -- second string.
+**
+**	Returns:
+**		strcasecmp(reverse(s1), reverse(s2))
+*/
+
+int
+sm_strrevcasecmp(s1, s2)
+	const char *s1, *s2;
+{
+	register int i1, i2;
+
+	i1 = strlen(s1) - 1;
+	i2 = strlen(s2) - 1;
+	while (i1 >= 0 && i2 >= 0 &&
+	       charmap[(unsigned char) s1[i1]] ==
+	       charmap[(unsigned char) s2[i2]])
+	{
+		--i1;
+		--i2;
+	}
+	if (i1 < 0)
+	{
+		if (i2 < 0)
+			return 0;
+		else
+			return -1;
+	}
+	else
+	{
+		if (i2 < 0)
+			return 1;
+		else
+			return (charmap[(unsigned char) s1[i1]] -
+				charmap[(unsigned char) s2[i2]]);
+	}
+}
+/*
+**  SM_STRREVCMP -- compare two strings starting at the end
+**
+**	Parameters:
+**		s1 -- first string.
+**		s2 -- second string.
+**
+**	Returns:
+**		strcmp(reverse(s1), reverse(s2))
+*/
+
+int
+sm_strrevcmp(s1, s2)
+	const char *s1, *s2;
+{
+	register int i1, i2;
+
+	i1 = strlen(s1) - 1;
+	i2 = strlen(s2) - 1;
+	while (i1 >= 0 && i2 >= 0 && s1[i1] == s2[i2])
+	{
+		--i1;
+		--i2;
+	}
+	if (i1 < 0)
+	{
+		if (i2 < 0)
+			return 0;
+		else
+			return -1;
+	}
+	else
+	{
+		if (i2 < 0)
+			return 1;
+		else
+			return s1[i1] - s2[i2];
+	}
+}