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tar: support for tar --numeric-owner. By Natanael Copa.

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function                                             old     new   delta
tar_longopts                                         221     237     +16
data_extract_all                                     692     705     +13
tar_main                                             690     702     +12
This commit is contained in:
Denis Vlasenko 2009-04-21 00:52:21 +00:00
parent 76478b8091
commit 8b814b4a34
3 changed files with 23 additions and 14 deletions
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30
archival/libunarchive/data_extract_all.c
View File

@ -114,22 +114,24 @@ void FAST_FUNC data_extract_all(archive_handle_t *archive_handle)
}
if (!(archive_handle->ah_flags & ARCHIVE_NOPRESERVE_OWN)) {
#if ENABLE_FEATURE_TAR_UNAME_GNAME
uid_t uid = file_header->uid;
gid_t gid = file_header->gid;
if (ENABLE_FEATURE_TAR_UNAME_GNAME
&& !(archive_handle->ah_flags & ARCHIVE_NUMERIC_OWNER)
) {
uid_t uid = file_header->uid;
gid_t gid = file_header->gid;
if (file_header->uname) {
struct passwd *pwd = getpwnam(file_header->uname);
if (pwd) uid = pwd->pw_uid;
if (file_header->uname) {
struct passwd *pwd = getpwnam(file_header->uname);
if (pwd) uid = pwd->pw_uid;
}
if (file_header->gname) {
struct group *grp = getgrnam(file_header->gname);
if (grp) gid = grp->gr_gid;
}
lchown(file_header->name, uid, gid);
} else {
lchown(file_header->name, file_header->uid, file_header->gid);
}
if (file_header->gname) {
struct group *grp = getgrnam(file_header->gname);
if (grp) gid = grp->gr_gid;
}
lchown(file_header->name, uid, gid);
#else
lchown(file_header->name, file_header->uid, file_header->gid);
#endif
}
if ((file_header->mode & S_IFMT) != S_IFLNK) {
/* uclibc has no lchmod, glibc is even stranger -

6
archival/tar.c
View File

@ -738,6 +738,7 @@ enum {
USE_FEATURE_SEAMLESS_Z( OPTBIT_COMPRESS ,)
OPTBIT_NOPRESERVE_OWN,
OPTBIT_NOPRESERVE_PERM,
OPTBIT_NUMERIC_OWNER,
OPT_TEST = 1 << 0, // t
OPT_EXTRACT = 1 << 1, // x
OPT_BASEDIR = 1 << 2, // C
@ -756,6 +757,7 @@ enum {
OPT_COMPRESS = USE_FEATURE_SEAMLESS_Z( (1 << OPTBIT_COMPRESS )) + 0, // Z
OPT_NOPRESERVE_OWN = 1 << OPTBIT_NOPRESERVE_OWN , // no-same-owner
OPT_NOPRESERVE_PERM = 1 << OPTBIT_NOPRESERVE_PERM, // no-same-permissions
OPT_NUMERIC_OWNER = 1 << OPTBIT_NUMERIC_OWNER,
};
#if ENABLE_FEATURE_TAR_LONG_OPTIONS
static const char tar_longopts[] ALIGN1 =
@ -787,6 +789,7 @@ static const char tar_longopts[] ALIGN1 =
# if ENABLE_FEATURE_SEAMLESS_Z
"compress\0" No_argument "Z"
# endif
"numeric-owner\0" No_argument "\xfc"
"no-same-owner\0" No_argument "\xfd"
"no-same-permissions\0" No_argument "\xfe"
/* --exclude takes next bit position in option mask, */
@ -873,6 +876,9 @@ int tar_main(int argc UNUSED_PARAM, char **argv)
if (opt & OPT_NOPRESERVE_PERM)
tar_handle->ah_flags |= ARCHIVE_NOPRESERVE_PERM;
if (opt & OPT_NUMERIC_OWNER)
tar_handle->ah_flags |= ARCHIVE_NUMERIC_OWNER;
if (opt & OPT_GZIP)
get_header_ptr = get_header_tar_gz;

1
include/unarchive.h
View File

@ -11,6 +11,7 @@ PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
#define ARCHIVE_EXTRACT_NEWER 16
#define ARCHIVE_NOPRESERVE_OWN 32
#define ARCHIVE_NOPRESERVE_PERM 64
#define ARCHIVE_NUMERIC_OWNER 128
typedef struct file_header_t {
char *name;