https://bugs.gentoo.org/546294 https://lists.gnu.org/archive/html/bug-tar/2015-04/msg00006.html From 15c02c2b9d383446b3ea35dbea5a048e136b020d Mon Sep 17 00:00:00 2001 From: Sergey Poznyakoff Date: Thu, 16 Apr 2015 13:02:10 +0300 Subject: [PATCH] Fix extraction from concatenated incremental archives. * src/common.h (remove_delayed_set_stat): New proto. * src/extract.c (free_delayed_set_stat) (remove_delayed_set_stat): New function. (apply_nonancestor_delayed_set_stat): Use free_delayed_set_stat. * src/misc.c (safer_rmdir): Remove delayed_set_stat entry corresponding to the removed directory. * tests/incr10.at: New test case. * tests/Makefile.am: Add new test. * tests/testsuite.at: Likewise. --- src/common.h | 2 ++ src/extract.c | 38 +++++++++++++++++++++++++++----- src/misc.c | 7 +++++- tests/Makefile.am | 1 + tests/incr10.at | 64 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/testsuite.at | 1 + 6 files changed, 107 insertions(+), 6 deletions(-) create mode 100644 tests/incr10.at diff --git a/src/common.h b/src/common.h index 20cbb64..2904183 100644 --- a/src/common.h +++ b/src/common.h @@ -523,6 +523,8 @@ void extract_archive (void); void extract_finish (void); bool rename_directory (char *src, char *dst); +void remove_delayed_set_stat (const char *fname); + /* Module delete.c. */ void delete_archive_members (void); diff --git a/src/extract.c b/src/extract.c index ca25603..5aaeb1b 100644 --- a/src/extract.c +++ b/src/extract.c @@ -537,6 +537,38 @@ repair_delayed_set_stat (char const *dir, quotearg_colon (dir))); } +static void +free_delayed_set_stat (struct delayed_set_stat *data) +{ + xheader_xattr_free (data->xattr_map, data->xattr_map_size); + free (data->cntx_name); + free (data->acls_a_ptr); + free (data->acls_d_ptr); + free (data); +} + +void +remove_delayed_set_stat (const char *fname) +{ + struct delayed_set_stat *data, *next, *prev = NULL; + for (data = delayed_set_stat_head; data; data = next) + { + next = data->next; + if (chdir_current == data->change_dir + && strcmp (data->file_name, fname) == 0) + { + free_delayed_set_stat (data); + if (prev) + prev->next = next; + else + delayed_set_stat_head = next; + return; + } + else + prev = data; + } +} + /* After a file/link/directory creation has failed, see if it's because some required directory was not present, and if so, create all required directories. Return zero if all the required @@ -846,11 +878,7 @@ apply_nonancestor_delayed_set_stat (char const *file_name, bool after_links) } delayed_set_stat_head = data->next; - xheader_xattr_free (data->xattr_map, data->xattr_map_size); - free (data->cntx_name); - free (data->acls_a_ptr); - free (data->acls_d_ptr); - free (data); + free_delayed_set_stat (data); } } diff --git a/src/misc.c b/src/misc.c index 8e66643..d263c07 100644 --- a/src/misc.c +++ b/src/misc.c @@ -586,7 +586,12 @@ safer_rmdir (const char *file_name) return -1; } - return unlinkat (chdir_fd, file_name, AT_REMOVEDIR); + if (unlinkat (chdir_fd, file_name, AT_REMOVEDIR) == 0) + { + remove_delayed_set_stat (file_name); + return 0; + } + return -1; } /* Remove FILE_NAME, returning 1 on success. If FILE_NAME is a directory, -- 2.3.5