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authorGravatar Rob Landley <rob@landley.net>2005-10-27 22:49:08 +0000
committerGravatar Rob Landley <rob@landley.net>2005-10-27 22:49:08 +0000
commitf3d6c94c7f1f88e51a0419cdfc655eeac8856744 (patch)
tree389bc49a21f1d0b34cd81b1cde3e769f0899295f /archival
parent47ea7b7f96e0ba76514a4f24177dc0e3e5ec30a0 (diff)
downloadbusybox-f3d6c94c7f1f88e51a0419cdfc655eeac8856744.tar.gz
busybox-f3d6c94c7f1f88e51a0419cdfc655eeac8856744.tar.bz2
Add --no-same-owner and --no-same-permissions options to tar.
Diffstat (limited to 'archival')
-rw-r--r--archival/libunarchive/data_extract_all.c8
-rw-r--r--archival/tar.c87
2 files changed, 58 insertions, 37 deletions
diff --git a/archival/libunarchive/data_extract_all.c b/archival/libunarchive/data_extract_all.c
index d10d665f6..42e442336 100644
--- a/archival/libunarchive/data_extract_all.c
+++ b/archival/libunarchive/data_extract_all.c
@@ -111,8 +111,12 @@ extern void data_extract_all(archive_handle_t *archive_handle)
}
}
- lchown(file_header->name, file_header->uid, file_header->gid);
- if ((file_header->mode & S_IFMT) != S_IFLNK) {
+ if (!(archive_handle->flags & ARCHIVE_NOPRESERVE_OWN)) {
+ lchown(file_header->name, file_header->uid, file_header->gid);
+ }
+ if (!(archive_handle->flags & ARCHIVE_NOPRESERVE_PERM) &&
+ (file_header->mode & S_IFMT) != S_IFLNK)
+ {
chmod(file_header->name, file_header->mode);
}
diff --git a/archival/tar.c b/archival/tar.c
index 82a79b728..e486f7fa3 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -578,66 +578,76 @@ static char get_header_tar_Z(archive_handle_t *archive_handle)
#define get_header_tar_Z 0
#endif
-#define CTX_TEST (1 << 0)
-#define CTX_EXTRACT (1 << 1)
-#define TAR_OPT_BASEDIR (1 << 2)
-#define TAR_OPT_TARNAME (1 << 3)
-#define TAR_OPT_2STDOUT (1 << 4)
-#define TAR_OPT_P (1 << 5)
-#define TAR_OPT_VERBOSE (1 << 6)
-#define TAR_OPT_KEEP_OLD (1 << 7)
-
-# define CTX_CREATE (1 << 8)
-# define TAR_OPT_DEREFERNCE (1 << 9)
+#define CTX_TEST (1 << 0)
+#define CTX_EXTRACT (1 << 1)
+#define TAR_OPT_BASEDIR (1 << 2)
+#define TAR_OPT_TARNAME (1 << 3)
+#define TAR_OPT_2STDOUT (1 << 4)
+#define TAR_OPT_P (1 << 5)
+#define TAR_OPT_VERBOSE (1 << 6)
+#define TAR_OPT_KEEP_OLD (1 << 7)
+
+#define TAR_OPT_AFTER_START 8
+
+#define CTX_CREATE (1 << (TAR_OPT_AFTER_START))
+#define TAR_OPT_DEREFERNCE (1 << (TAR_OPT_AFTER_START + 1))
#ifdef CONFIG_FEATURE_TAR_CREATE
-# define TAR_OPT_STR_CREATE "ch"
-# define TAR_OPT_FLAG_CREATE 2
+# define TAR_OPT_STR_CREATE "ch"
+# define TAR_OPT_AFTER_CREATE TAR_OPT_AFTER_START + 2
#else
-# define TAR_OPT_STR_CREATE ""
-# define TAR_OPT_FLAG_CREATE 0
+# define TAR_OPT_STR_CREATE ""
+# define TAR_OPT_AFTER_CREATE TAR_OPT_AFTER_START
#endif
-# define TAR_OPT_BZIP2 (1 << (8 + TAR_OPT_FLAG_CREATE))
+#define TAR_OPT_BZIP2 (1 << (TAR_OPT_AFTER_CREATE))
#ifdef CONFIG_FEATURE_TAR_BZIP2
-# define TAR_OPT_STR_BZIP2 "j"
-# define TAR_OPT_FLAG_BZIP2 1
+# define TAR_OPT_STR_BZIP2 "j"
+# define TAR_OPT_AFTER_BZIP2 TAR_OPT_AFTER_CREATE + 1
#else
-# define TAR_OPT_STR_BZIP2 ""
-# define TAR_OPT_FLAG_BZIP2 0
+# define TAR_OPT_STR_BZIP2 ""
+# define TAR_OPT_AFTER_BZIP2 TAR_OPT_AFTER_CREATE
#endif
-# define TAR_OPT_INCLUDE_FROM (1 << (8 + TAR_OPT_FLAG_CREATE + TAR_OPT_FLAG_BZIP2))
-# define TAR_OPT_EXCLUDE_FROM (1 << (8 + TAR_OPT_FLAG_CREATE + TAR_OPT_FLAG_BZIP2 + 1))
+#define TAR_OPT_INCLUDE_FROM (1 << (TAR_OPT_AFTER_BZIP2))
+#define TAR_OPT_EXCLUDE_FROM (1 << (TAR_OPT_AFTER_BZIP2 + 1))
#ifdef CONFIG_FEATURE_TAR_FROM
-# define TAR_OPT_STR_FROM "T:X:"
-# define TAR_OPT_FLAG_FROM 2
+# define TAR_OPT_STR_FROM "T:X:"
+# define TAR_OPT_AFTER_FROM TAR_OPT_AFTER_BZIP2 + 2
#else
-# define TAR_OPT_STR_FROM ""
-# define TAR_OPT_FLAG_FROM 0
+# define TAR_OPT_STR_FROM ""
+# define TAR_OPT_AFTER_FROM TAR_OPT_AFTER_BZIP2
#endif
-# define TAR_OPT_GZIP (1 << (8 + TAR_OPT_FLAG_CREATE + TAR_OPT_FLAG_BZIP2 + TAR_OPT_FLAG_FROM))
+#define TAR_OPT_GZIP (1 << (TAR_OPT_AFTER_FROM))
#ifdef CONFIG_FEATURE_TAR_GZIP
-# define TAR_OPT_STR_GZIP "z"
-# define TAR_OPT_FLAG_GZIP 1
+# define TAR_OPT_STR_GZIP "z"
+# define TAR_OPT_AFTER_GZIP TAR_OPT_AFTER_FROM + 1
#else
-# define TAR_OPT_STR_GZIP ""
-# define TAR_OPT_FLAG_GZIP 0
+# define TAR_OPT_STR_GZIP ""
+# define TAR_OPT_AFTER_GZIP TAR_OPT_AFTER_FROM
#endif
-# define TAR_OPT_UNCOMPRESS (1 << (8 + TAR_OPT_FLAG_CREATE + TAR_OPT_FLAG_BZIP2 + TAR_OPT_FLAG_FROM + TAR_OPT_FLAG_GZIP))
+#define TAR_OPT_UNCOMPRESS (1 << (TAR_OPT_AFTER_GZIP))
#ifdef CONFIG_FEATURE_TAR_COMPRESS
-# define TAR_OPT_STR_COMPRESS "Z"
+# define TAR_OPT_STR_COMPRESS "Z"
+# define TAR_OPT_AFTER_COMPRESS TAR_OPT_AFTER_GZIP + 1
#else
-# define TAR_OPT_STR_COMPRESS ""
+# define TAR_OPT_STR_COMPRESS ""
+# define TAR_OPT_AFTER_COMPRESS TAR_OPT_AFTER_GZIP
#endif
+#define TAR_OPT_NOPRESERVE_OWN (1 << (TAR_OPT_AFTER_COMPRESS))
+#define TAR_OPT_NOPRESERVE_PERM (1 << (TAR_OPT_AFTER_COMPRESS + 1))
+#define TAR_OPT_STR_NOPRESERVE "\203\213"
+#define TAR_OPT_AFTER_NOPRESERVE TAR_OPT_AFTER_COMPRESS + 2
+
static const char tar_options[]="txC:f:Opvk" \
TAR_OPT_STR_CREATE \
TAR_OPT_STR_BZIP2 \
TAR_OPT_STR_FROM \
TAR_OPT_STR_GZIP \
- TAR_OPT_STR_COMPRESS;
+ TAR_OPT_STR_COMPRESS \
+ TAR_OPT_STR_NOPRESERVE;
#ifdef CONFIG_FEATURE_TAR_LONG_OPTIONS
static const struct option tar_long_options[] = {
@@ -649,6 +659,8 @@ static const struct option tar_long_options[] = {
{ "same-permissions", 0, NULL, 'p' },
{ "verbose", 0, NULL, 'v' },
{ "keep-old", 0, NULL, 'k' },
+ { "no-same-owner", 0, NULL, '\203' },
+ { "no-same-permissions",0, NULL, '\213' },
# ifdef CONFIG_FEATURE_TAR_CREATE
{ "create", 0, NULL, 'c' },
{ "dereference", 0, NULL, 'h' },
@@ -726,6 +738,11 @@ int tar_main(int argc, char **argv)
if (opt & TAR_OPT_KEEP_OLD)
tar_handle->flags &= ~ARCHIVE_EXTRACT_UNCONDITIONAL;
+ if (opt & TAR_OPT_NOPRESERVE_OWN)
+ tar_handle->flags |= ARCHIVE_NOPRESERVE_OWN;
+
+ if (opt & TAR_OPT_NOPRESERVE_PERM)
+ tar_handle->flags |= ARCHIVE_NOPRESERVE_PERM;
if (ENABLE_FEATURE_TAR_GZIP && (opt & TAR_OPT_GZIP))
get_header_ptr = get_header_tar_gz;