File openssh-6.6p1-ssh_case_insensitive_host_matching.patch of Package openssh.9495

# HG changeset patch
# Parent  99d957bbc40d559162a602772cacf74207895366
Match hostnames in a case-insensitive manner.
bsc#1017099

backport of upstream commit dd3e2298663f4cc1a06bc69582d00dcfee27d73c

diff --git a/openssh-6.6p1/match.c b/openssh-6.6p1/match.c
--- a/openssh-6.6p1/match.c
+++ b/openssh-6.6p1/match.c
@@ -37,19 +37,21 @@
 
 #include "includes.h"
 
 #include <sys/types.h>
 
 #include <ctype.h>
 #include <stdlib.h>
 #include <string.h>
+#include <stdio.h>
 
 #include "xmalloc.h"
 #include "match.h"
+#include "misc.h"
 
 /*
  * Returns true if the given string matches the pattern (which may contain ?
  * and * as wildcards), and zero if it does not match.
  */
 
 int
 match_pattern(const char *s, const char *pattern)
@@ -174,17 +176,23 @@ match_pattern_list(const char *string, c
  * Tries to match the host name (which must be in all lowercase) against the
  * comma-separated sequence of subpatterns (each possibly preceded by ! to
  * indicate negation).  Returns -1 if negation matches, 1 if there is
  * a positive match, 0 if there is no match at all.
  */
 int
 match_hostname(const char *host, const char *pattern, u_int len)
 {
-	return match_pattern_list(host, pattern, len, 1);
+	char *hostcopy = xstrdup(host);
+	int r;
+
+	lowercase(hostcopy);
+	r = match_pattern_list(hostcopy, pattern, len, 1);
+	free(hostcopy);
+	return r;
 }
 
 /*
  * returns 0 if we get a negative match for the hostname or the ip
  * or if we get no match at all.  returns -1 on error, or 1 on
  * successful match.
  */
 int