Try2

security/sssd2.wtf/files/patch-src__providers__ad__ad_common.c

@@ -0,0 +1,41 @@
+--- src/providers/ad/ad_common.c.orig	2023-05-05 08:11:07 UTC
++++ src/providers/ad/ad_common.c
+@@ -19,6 +19,7 @@
+     You should have received a copy of the GNU General Public License
+     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
++#include <sys/param.h>
+ #include <ctype.h>
+ 
+ #include "providers/ad/ad_common.h"
+@@ -495,8 +496,8 @@ ad_get_common_options(TALLOC_CTX *mem_ctx,
+     char *server;
+     char *realm;
+     char *ad_hostname;
+-    char hostname[HOST_NAME_MAX + 1];
+-    char fqdn[HOST_NAME_MAX + 1];
++    char hostname[MAXHOSTNAMELEN + 1];
++    char fqdn[MAXHOSTNAMELEN + 1];
+     char *case_sensitive_opt;
+     const char *opt_override;
+ 
+@@ -543,7 +544,7 @@ ad_get_common_options(TALLOC_CTX *mem_ctx,
+                    strerror(ret));
+             goto done;
+         }
+-        hostname[HOST_NAME_MAX] = '\0';
++        hostname[MAXHOSTNAMELEN] = '\0';
+ 
+         if (strchr(hostname, '.') == NULL) {
+             ret = ad_try_to_get_fqdn(hostname, fqdn, sizeof(fqdn));
+@@ -552,8 +553,8 @@ ad_get_common_options(TALLOC_CTX *mem_ctx,
+                       "The hostname [%s] has been expanded to FQDN [%s]. "
+                       "If sssd should really use the short hostname, please "
+                       "set ad_hostname explicitly.\n", hostname, fqdn);
+-                strncpy(hostname, fqdn, HOST_NAME_MAX);
+-                hostname[HOST_NAME_MAX] = '\0';
++                strncpy(hostname, fqdn, MAXHOSTNAMELEN);
++                hostname[MAXHOSTNAMELEN] = '\0';
+             }
+         }
+