From f3d6c94c7f1f88e51a0419cdfc655eeac8856744 Mon Sep 17 00:00:00 2001 From: Rob Landley Date: Thu, 27 Oct 2005 22:49:08 +0000 Subject: Add --no-same-owner and --no-same-permissions options to tar. --- archival/libunarchive/data_extract_all.c | 8 ++- archival/tar.c | 87 +++++++++++++++++++------------- 2 files changed, 58 insertions(+), 37 deletions(-) (limited to 'archival') 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; -- cgit v1.2.3