make busybox passwd work when /etc/passwd is a symlink to /rom

git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@431 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/busybox/patches/140-unlink-passwd.patch b/package/busybox/patches/140-unlink-passwd.patch
new file mode 100644 (file)
index 0000000..07b6767
--- /dev/null
+++ b/package/busybox/patches/140-unlink-passwd.patch
@@ -0,0 +1,32 @@
+--- 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);