40 lines
1020 B
Diff
40 lines
1020 B
Diff
ripped from Debian
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--- nfs-utils-1.1.4/utils/mount/fstab.c
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+++ nfs-utils-1.1.4/utils/mount/fstab.c
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@@ -57,7 +57,7 @@ mtab_does_not_exist(void) {
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return var_mtab_does_not_exist;
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}
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-static int
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+int
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mtab_is_a_symlink(void) {
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get_mtab_info();
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return var_mtab_is_a_symlink;
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--- nfs-utils-1.1.4/utils/mount/fstab.h
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+++ nfs-utils-1.1.4/utils/mount/fstab.h
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@@ -7,6 +7,7 @@
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#define _PATH_FSTAB "/etc/fstab"
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#endif
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+int mtab_is_a_symlink(void);
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int mtab_is_writable(void);
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int mtab_does_not_exist(void);
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void reset_mtab_info(void);
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--- nfs-utils-1.1.4/utils/mount/mount.c
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+++ nfs-utils-1.1.4/utils/mount/mount.c
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@@ -230,6 +230,13 @@ create_mtab (void) {
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int flags;
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mntFILE *mfp;
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+ /* Avoid writing if the mtab is a symlink to /proc/mounts, since
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+ that would create a file /proc/mounts in case the proc filesystem
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+ is not mounted, and the fchmod below would also fail. */
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+ if (mtab_is_a_symlink()) {
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+ return EX_SUCCESS;
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+ }
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+
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lock_mtab();
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mfp = nfs_setmntent (MOUNTED, "a+");
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