openwrt-xburst/package/busybox/patches/140-unlink-passwd.patch

--- busybox-1.00.old/loginutils/passwd.c	2004-09-15 04:39:09.000000000 +0200
+++ busybox-1.00/loginutils/passwd.c	2005-03-23 15:31:07.000000000 +0100
@@ -54,11 +54,12 @@
 		snprintf(filename, sizeof filename, "%s", bb_path_passwd_file);
 	}
 
-	if (((fp = fopen(filename, "r+")) == 0) || (fstat(fileno(fp), &sb))) {
+	if (((fp = fopen(filename, "r")) == 0) || (fstat(fileno(fp), &sb))) {
 		/* return 0; */
 		return 1;
 	}
 
+#if 0
 	/* Lock the password file before updating */
 	lock.l_type = F_WRLCK;
 	lock.l_whence = SEEK_SET;
@@ -69,6 +70,7 @@
 		return 1;
 	}
 	lock.l_type = F_UNLCK;
+#endif
 
 	snprintf(buf, sizeof buf, "%s-", filename);
 	if (create_backup(buf, fp)) {
@@ -119,6 +121,7 @@
 		fclose(fp);
 		return 1;
 	}
+	unlink(filename);
 	if (rename(buf, filename) < 0) {
 		fcntl(fileno(fp), F_SETLK, &lock);
 		fclose(fp);