File openssh-7.2p2-ssh_case_insensitive_host_matching.patch of Package openssh.29886

From ada15ded642aeffdd594590da177d5a161621f5b Mon Sep 17 00:00:00 2001
From: Old openssh patches <pcerny@suse.com>
Date: Wed, 26 Oct 2022 09:56:48 +0200
Subject: [PATCH] openssh-7.2p2-ssh_case_insensitive_host_matching

# HG changeset patch
# Parent  3f4d92ce6f3b3aca2eb2bd9acc03adb723cf38c9
Match hostnames in a case-insensitive manner.

bsc#1017099
---
 readconf.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/readconf.c b/readconf.c
index d1a556b0..b2763883 100644
--- a/readconf.c
+++ b/readconf.c
@@ -531,6 +531,7 @@ match_cfg_line(Options *options, char **condition, struct passwd *pw,
     const char *filename, int linenum)
 {
 	char *arg, *oattrib, *attrib, *cmd, *cp = *condition, *host, *criteria;
+	char *hostlc;
 	const char *ruser;
 	int r, port, this_result, result = 1, attributes = 0, negate;
 	char thishost[NI_MAXHOST], shorthost[NI_MAXHOST], portstr[NI_MAXSERV];
@@ -551,6 +552,10 @@ match_cfg_line(Options *options, char **condition, struct passwd *pw,
 		host = xstrdup(host_arg);
 	}
 
+	/* match_hostname() requires the hostname to be lowercase */
+	hostlc = xstrdup(host);
+	lowercase(hostlc);
+
 	debug2("checking match for '%s' host %s originally %s",
 	    cp, host, original_host);
 	while ((oattrib = attrib = strdelim(&cp)) && *attrib != '\0') {
@@ -589,8 +594,8 @@ match_cfg_line(Options *options, char **condition, struct passwd *pw,
 			goto out;
 		}
 		if (strcasecmp(attrib, "host") == 0) {
-			criteria = xstrdup(host);
-			r = match_hostname(host, arg) == 1;
+			criteria = xstrdup(hostlc);
+			r = match_hostname(hostlc, arg) == 1;
 			if (r == (negate ? 1 : 0))
 				this_result = result = 0;
 		} else if (strcasecmp(attrib, "originalhost") == 0) {
@@ -663,6 +668,7 @@ match_cfg_line(Options *options, char **condition, struct passwd *pw,
 	if (result != -1)
 		debug2("match %sfound", result ? "" : "not ");
 	*condition = cp;
+	free(hostlc);
 	free(host);
 	return result;
 }
-- 
2.38.0