modernize backfire 10.03 so it can be operational again

[openwrt-10.03/.git] / package / quagga / not-patches / patches-pgbgp / 150-no-cross-fs-link.patch

diff --git a/package/quagga/not-patches/patches-pgbgp/150-no-cross-fs-link.patch b/package/quagga/not-patches/patches-pgbgp/150-no-cross-fs-link.patch
new file mode 100644 (file)
index 0000000..a8e9f84
--- /dev/null
+++ b/package/quagga/not-patches/patches-pgbgp/150-no-cross-fs-link.patch
@@ -0,0 +1,40 @@
+--- a/lib/command.c
++++ b/lib/command.c
+@@ -3064,6 +3064,13 @@ DEFUN (config_write_file,
+                VTY_NEWLINE);
+         goto finished;
+       }
++
++#if 0
++  /* This code fails on UNION MOUNTs and similar filesystems if the
++   * config file is still on the RO layer. Hardlinks across layers
++   * will not work and cause quagga to fail saving the configuration...
++   * should use rename() to move files around...
++   */
+   if (link (config_file, config_file_sav) != 0)
+     {
+       vty_out (vty, "Can't backup old configuration file %s.%s", config_file_sav,
+@@ -3077,7 +3084,23 @@ DEFUN (config_write_file,
+               VTY_NEWLINE);
+       goto finished;
+     }
++#else
++  /* And this is the code that hopefully does work */
++  if (rename (config_file, config_file_sav) != 0)
++    {
++      vty_out (vty, "Can't backup old configuration file %s.%s", config_file_sav,
++              VTY_NEWLINE);
++      goto finished;
++    }
++  sync ();
++#endif
++
++#if 0
++  /* same here. Please no cross-filesystem hardlinks... */
+   if (link (config_file_tmp, config_file) != 0)
++#else
++  if (rename (config_file_tmp, config_file) != 0)
++#endif
+     {
+       vty_out (vty, "Can't save configuration file %s.%s", config_file,
+              VTY_NEWLINE);