From 74ce9dde81b04174a29df57e8494f405d173c7ba Mon Sep 17 00:00:00 2001
From: "Samantha N. Bueno" <sbueno+anaconda@redhat.com>
Date: Mon, 11 Jan 2016 14:56:56 -0500
Subject: [PATCH] Handle hostname and dns setting properly in linuxrc.s390
 (#1214266)

Translate all chars in hostname and DNS search domain to lowercase.
This ensures we're compliant with RFC1738 (section 2.1) and RFC4343.

Resolves: rhbz#1214266
---
 loader/linuxrc.s390 | 4 ++--
 loader/loader.c     | 6 +++---
 loader/net.c        | 2 +-
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/loader/linuxrc.s390 b/loader/linuxrc.s390
index 94ba4c0..1290a70 100644
--- a/loader/linuxrc.s390
+++ b/loader/linuxrc.s390
@@ -1823,7 +1823,7 @@ function syntax_check_hostname() {
 }
 
 function handle_hostname() {
-    if ! hostname $HOSTNAME; then
+    if ! hostname "${HOSTNAME,,}"; then
         echo $"Could not configure hostname $HOSTNAME"
         return 1
     fi
@@ -2369,7 +2369,7 @@ function syntax_check_searchdns() {
     local allgood="yes"
     while read dnsitem; do
         syntax_check_domainname "$dnsitem" $"Not a valid DNS search domain: $dnsitem" || allgood="no"
-    done < <(echo $SEARCHDNS | sed 's/:/\n/g')
+    done < <(echo "${SEARCHDNS,,}" | sed 's/:/\n/g')
     if [ "$allgood" = "yes" ]; then
         return 0
     else
diff --git a/loader/loader.c b/loader/loader.c
index a8cbb1b..9769079 100644
--- a/loader/loader.c
+++ b/loader/loader.c
@@ -798,7 +798,7 @@ static void readNetInfo(struct loaderData_s ** ld) {
                 } else if (!g_strcmp0(pair[0], "MACADDR")) {
                     loaderData->macaddr = strdup(val);
                 } else if (!g_strcmp0(pair[0], "HOSTNAME")) {
-                    loaderData->hostname = strdup(val);
+                    loaderData->hostname = strdup(str2lower(val));
                 }
             }
 
@@ -1095,7 +1095,7 @@ static void parseCmdLineFlags(struct loaderData_s * loaderData,
             setStage2LocFromCmdline(argv[i] + 7, loaderData);
         }
         else if (!strncasecmp(argv[i], "hostname=", 9))
-            loaderData->hostname = strdup(argv[i] + 9);
+            loaderData->hostname = strdup(strlower(argv[i] + 9));
         else if (!strncasecmp(argv[i], "ip=", 3))
             parseCmdLineIp(loaderData, argv[i]);
 #ifdef ENABLE_IPV6
@@ -1682,7 +1682,7 @@ static char *doLoaderMain(struct loaderData_s *loaderData,
 
                 /* set the hostname if we have that */
                 if (loaderData->hostname) {
-                    if (sethostname(loaderData->hostname,
+                    if (sethostname(str2lower(loaderData->hostname),
                                     strlen(loaderData->hostname))) {
                         logMessage(ERROR, "error setting hostname to %s",
                                    loaderData->hostname);
diff --git a/loader/net.c b/loader/net.c
index 43c107c..102257d 100644
--- a/loader/net.c
+++ b/loader/net.c
@@ -380,7 +380,7 @@ void setupIfaceStruct(iface_t * iface, struct loaderData_s * loaderData) {
     if (loaderData->hostname) {
         logMessage(INFO, "setting specified hostname of %s",
                    loaderData->hostname);
-        iface->hostname = strdup(loaderData->hostname);
+        iface->hostname = strdup(str2lower(loaderData->hostname));
     }
 
     if (loaderData->mtu) {
-- 
2.4.3