in real_dir_from_tilde(), fix long-standing problem where directory

names that began with "~", but that weren't users' home directories,
could be erroneously treated as users' home directories (e.g. "~d/"
would be treated as "~daemon/")


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4074 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

+2007-04-17  David Lawrence Ramsey  <pooka109@gmail.com>
+
+	* files.c (real_dir_from_tilde): Fix long-standing problem where
+	directory names that began with "~", but that weren't users'
+	home directories, could be erroneously treated as users' home
+	directories (e.g. "~d/" would be treated as "~daemon/"). (DLR,
+	found by Justin Fletcher)
+
 2007-04-16  David Lawrence Ramsey  <pooka109@gmail.com>
 
 	* files.c (real_dir_from_tilde): Fix segfault when dealing with

src/files.c

@@ -1995,7 +1995,8 @@ char *real_dir_from_tilde(const char *buf)
 	    do {
 		userdata = getpwent();
 	    } while (userdata != NULL &&
-		strncmp(userdata->pw_name, buf + 1, i - 1) != 0);
+		(strncmp(userdata->pw_name, buf + 1, i - 1) != 0 ||
+		strlen(userdata->pw_name) != strnlen(buf + 1, i - 1)));
 	    endpwent();
 	    if (userdata != NULL)
 		tilde_dir = userdata->pw_dir;