112 lines
2.9 KiB
Diff
112 lines
2.9 KiB
Diff
From fd137d96707d776fb2541e3d362825bb650dc786 Mon Sep 17 00:00:00 2001
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From: Kamil Dudka <kdudka@redhat.com>
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Date: Mon, 26 Sep 2011 15:36:13 +0200
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Subject: [PATCH 2/2] misc: partially revert upstream commit 4bde4f3
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---
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src/misc.c | 51 ++++++++++++++++++++++++++++++++++++++++++++++++++-
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1 files changed, 50 insertions(+), 1 deletions(-)
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diff --git a/src/misc.c b/src/misc.c
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index b75f2ab..a6e5294 100644
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--- a/src/misc.c
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+++ b/src/misc.c
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@@ -21,6 +21,7 @@
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#include <rmt.h>
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#include "common.h"
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#include <quotearg.h>
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+#include <save-cwd.h>
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#include <xgetcwd.h>
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#include <unlinkdir.h>
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#include <utimens.h>
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@@ -633,6 +634,14 @@ struct wd
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/* The directory's name. */
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char const *name;
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+ /* A negative value if no attempt has been made to save the
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+ directory, 0 if it was saved successfully, and a positive errno
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+ value if it was not saved successfully. */
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+ int err;
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+
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+ /* The saved version of the directory, if ERR == 0. */
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+ struct saved_cwd saved_cwd;
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+
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/* If nonzero, the file descriptor of the directory, or AT_FDCWD if
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the working directory. If zero, the directory needs to be opened
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to be used. */
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@@ -687,6 +696,7 @@ chdir_arg (char const *dir)
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if (! wd_count)
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{
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wd[wd_count].name = ".";
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+ wd[wd_count].err = -1;
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wd[wd_count].fd = AT_FDCWD;
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wd_count++;
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}
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@@ -704,6 +714,7 @@ chdir_arg (char const *dir)
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}
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wd[wd_count].name = dir;
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+ wd[wd_count].err = -1;
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wd[wd_count].fd = 0;
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return wd_count++;
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}
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@@ -728,9 +739,44 @@ chdir_do (int i)
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if (chdir_current != i)
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{
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struct wd *curr = &wd[i];
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+ struct wd *prev = &wd[chdir_current];
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int fd = curr->fd;
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- if (! fd)
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+ if (prev->err < 0)
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+ {
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+ prev->err = 0;
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+ if (save_cwd (&prev->saved_cwd) != 0)
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+ prev->err = errno;
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+ else if (0 <= prev->saved_cwd.desc)
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+ {
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+ /* Make sure we still have at least one descriptor available. */
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+ int fd1 = prev->saved_cwd.desc;
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+ int fd2 = dup (fd1);
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+ if (0 <= fd2)
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+ close (fd2);
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+ else if (errno == EMFILE)
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+ {
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+ /* Force restore_cwd to use chdir_long. */
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+ close (fd1);
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+ prev->saved_cwd.desc = -1;
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+ prev->saved_cwd.name = xgetcwd ();
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+ if (! prev->saved_cwd.name)
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+ prev->err = errno;
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+ }
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+ else
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+ prev->err = errno;
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+ }
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+ }
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+
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+ if (0 <= curr->err)
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+ {
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+ int err = curr->err;
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+ if (err == 0 && restore_cwd (&curr->saved_cwd) != 0)
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+ err = errno;
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+ if (err)
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+ FATAL_ERROR ((0, err, _("Cannot restore working directory")));
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+ }
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+ else if (! fd)
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{
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if (! IS_ABSOLUTE_FILE_NAME (curr->name))
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chdir_do (i - 1);
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@@ -741,6 +787,9 @@ chdir_do (int i)
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curr->fd = fd;
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+ if (chdir (curr->name) != 0)
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+ chdir_fatal (curr->name);
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+
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/* Add I to the cache, tossing out the lowest-ranking entry if the
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cache is full. */
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if (wdcache_count < CHDIR_CACHE_SIZE)
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--
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1.7.4.4
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