Keeping homedir NULL when no home directory could be determined,

so that nano will show a message about it.


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@5259 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -2,6 +2,8 @@
 	* src/search.c (do_research): If nothing was searched for yet during
 	this run of nano, take the most recent item from the search history.
 	This makes M-W work also right after startup, like <n> in vim/less.
+	* src/utils.c (get_homedir): Keep homedir NULL when no home directory
+	could be determined, so that nano will show a message about it.
 
 2015-06-18  Benno Schulenberg  <bensberg@justemail.net>
 	* src/rcfile.c: Allow a tiny nano's ~/.nanorc to enable search and

src/utils.c

@@ -43,7 +43,11 @@ void get_homedir(void)
 	    if (userage != NULL)
 		homenv = userage->pw_dir;
 	}
-	homedir = mallocstrcpy(NULL, homenv);
+
+	/* Only set homedir if some home directory could be determined,
+	 * otherwise keep homedir NULL. */
+	if (homenv != NULL && strcmp(homenv, "") != 0)
+	    homedir = mallocstrcpy(NULL, homenv);
     }
 }