diff options
| -rw-r--r-- | archival/Config.in | 10 | ||||
| -rw-r--r-- | archival/libunarchive/data_extract_all.c | 15 | ||||
| -rw-r--r-- | archival/libunarchive/get_header_tar.c | 9 | ||||
| -rw-r--r-- | archival/libunarchive/header_verbose_list.c | 28 | ||||
| -rw-r--r-- | include/unarchive.h | 4 |
5 files changed, 64 insertions, 2 deletions
diff --git a/archival/Config.in b/archival/Config.in index 8d31ec7..160c54d 100644 --- a/archival/Config.in +++ b/archival/Config.in @@ -237,7 +237,15 @@ config FEATURE_TAR_LONG_OPTIONS default n depends on TAR && GETOPT_LONG help - Enable use of long options, increases size by about 400 Bytes + Enable use of long options, increases size by about 400 Bytes + +config FEATURE_TAR_UNAME_GNAME + bool "Enable use of user and group names" + default n + help + Enables use of user and group names in tar. This affects contents + listings (-t) and preserving permissions when unpacking (-p). + +200 bytes. config UNCOMPRESS bool "uncompress" diff --git a/archival/libunarchive/data_extract_all.c b/archival/libunarchive/data_extract_all.c index 76e7edf..4df9c09 100644 --- a/archival/libunarchive/data_extract_all.c +++ b/archival/libunarchive/data_extract_all.c @@ -112,7 +112,22 @@ void data_extract_all(archive_handle_t *archive_handle) } if (!(archive_handle->flags & ARCHIVE_NOPRESERVE_OWN)) { +#if ENABLE_FEATURE_TAR_UNAME_GNAME + 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->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 - diff --git a/archival/libunarchive/get_header_tar.c b/archival/libunarchive/get_header_tar.c index 5a1f594..893cd5b 100644 --- a/archival/libunarchive/get_header_tar.c +++ b/archival/libunarchive/get_header_tar.c @@ -187,6 +187,10 @@ char get_header_tar(archive_handle_t *archive_handle) /* FIXME: what if we have non-link object with link_target? */ /* Will link_target be free()ed? */ } +#if ENABLE_FEATURE_TAR_UNAME_GNAME + file_header->uname = tar.uname[0] ? xstrndup(tar.uname, sizeof(tar.uname)) : NULL; + file_header->gname = tar.gname[0] ? xstrndup(tar.gname, sizeof(tar.gname)) : NULL; +#endif file_header->mtime = GET_OCTAL(tar.mtime); file_header->size = GET_OCTAL(tar.size); file_header->gid = GET_OCTAL(tar.gid); @@ -317,6 +321,9 @@ char get_header_tar(archive_handle_t *archive_handle) free(file_header->link_target); /* Do not free(file_header->name)! */ - +#if ENABLE_FEATURE_TAR_UNAME_GNAME + free(file_header->uname); + free(file_header->gname); +#endif return EXIT_SUCCESS; } diff --git a/archival/libunarchive/header_verbose_list.c b/archival/libunarchive/header_verbose_list.c index b9ac3c4..ea623ed 100644 --- a/archival/libunarchive/header_verbose_list.c +++ b/archival/libunarchive/header_verbose_list.c @@ -10,6 +10,33 @@ void header_verbose_list(const file_header_t *file_header) { struct tm *mtime = localtime(&(file_header->mtime)); +#if ENABLE_FEATURE_TAR_UNAME_GNAME + char uid[8]; + char gid[8]; + char *user = file_header->uname; + char *group = file_header->gname; + + if (user == NULL) { + snprintf(uid, sizeof(uid), "%u", (unsigned)file_header->uid); + user = uid; + } + if (group == NULL) { + snprintf(gid, sizeof(gid), "%u", (unsigned)file_header->gid); + group = gid; + } + printf("%s %s/%s %9u %4u-%02u-%02u %02u:%02u:%02u %s", + bb_mode_string(file_header->mode), + user, + group, + (unsigned int) file_header->size, + 1900 + mtime->tm_year, + 1 + mtime->tm_mon, + mtime->tm_mday, + mtime->tm_hour, + mtime->tm_min, + mtime->tm_sec, + file_header->name); +#else /* !FEATURE_TAR_UNAME_GNAME */ printf("%s %d/%d %9"OFF_FMT"u %4u-%02u-%02u %02u:%02u:%02u %s", bb_mode_string(file_header->mode), file_header->uid, @@ -22,6 +49,7 @@ void header_verbose_list(const file_header_t *file_header) mtime->tm_min, mtime->tm_sec, file_header->name); +#endif /* FEATURE_TAR_UNAME_GNAME */ if (file_header->link_target) { printf(" -> %s", file_header->link_target); diff --git a/include/unarchive.h b/include/unarchive.h index e8beebb..4ed2ccd 100644 --- a/include/unarchive.h +++ b/include/unarchive.h @@ -13,6 +13,10 @@ typedef struct file_header_t { char *name; char *link_target; +#if ENABLE_FEATURE_TAR_UNAME_GNAME + char *uname; + char *gname; +#endif off_t size; uid_t uid; gid_t gid; |