Truncating an overlong hostname properly instead of bailing out

when writing a lock file.


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@5391 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -1,3 +1,8 @@
+2015-11-06  Benno Schulenberg  <bensberg@justemail.net>
+	* src/files.c (write_lockfile): Don't bail out when the hostname is
+	overlong, but instead truncate it properly and continue.  This fixes
+	Ubuntu bug #1509081 reported by Sam Reed.
+
 2015-11-02  Benno Schulenberg  <bensberg@justemail.net>
 	* src/nano.h: Delete an unused type definition.
 	* src/nano.h: Improve several comments.

src/files.c

@@ -136,8 +136,12 @@ int write_lockfile(const char *lockfilename, const char *origfilename, bool modi
     mypid = getpid();
 
     if (gethostname(myhostname, 31) < 0) {
-	statusbar(_("Couldn't determine hostname for lock file: %s"), strerror(errno));
-	goto free_and_fail;
+	if (errno == ENAMETOOLONG)
+	    myhostname[31] = '\0';
+	else {
+	    statusbar(_("Couldn't determine hostname for lock file: %s"), strerror(errno));
+	    goto free_and_fail;
+	}
     }
 
     /* Check if the lock exists before we try to delete it...*/