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-rw-r--r--archival/Config.in13
-rw-r--r--archival/tar.c182
2 files changed, 138 insertions, 57 deletions
diff --git a/archival/Config.in b/archival/Config.in
index 2eab5ab..7807da1 100644
--- a/archival/Config.in
+++ b/archival/Config.in
@@ -177,13 +177,13 @@ config CONFIG_FEATURE_TAR_BZIP2
If you enable this option you'll be able to extract
archives compressed with bzip2.
-config CONFIG_FEATURE_TAR_EXCLUDE
- bool " Enable -X and --exclude options (exclude files)"
+config CONFIG_FEATURE_TAR_FROM
+ bool " Enable -X (exclude from) and -T (include from) options)"
default n
depends on CONFIG_TAR
help
If you enable this option you'll be able to specify
- a list of files to exclude from an archive.
+ a list of files to include or exclude from an archive.
config CONFIG_FEATURE_TAR_GZIP
bool " Enable -z option"
@@ -218,6 +218,13 @@ config CONFIG_FEATURE_TAR_GNU_EXTENSIONS
With this option busybox supports GNU long filenames and
linknames.
+config CONFIG_FEATURE_TAR_LONG_OPTIONS
+ bool " Enable long options"
+ default n
+ depends on CONFIG_TAR
+ help
+ Enable use of long options, increases size by about 400 Bytes
+
config CONFIG_UNCOMPRESS
bool "uncompress"
default n
diff --git a/archival/tar.c b/archival/tar.c
index cf9bc04..8074c2d 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -317,13 +317,9 @@ static inline int writeTarHeader(struct TarBallInfo *tbInfo,
return (TRUE);
}
-# if defined CONFIG_FEATURE_TAR_EXCLUDE
+# ifdef CONFIG_FEATURE_TAR_FROM
static inline int exclude_file(const llist_t *excluded_files, const char *file)
{
- if (excluded_files == NULL) {
- return 0;
- }
-
while (excluded_files) {
if (excluded_files->data[0] == '/') {
if (fnmatch(excluded_files->data, file,
@@ -344,7 +340,7 @@ static inline int exclude_file(const llist_t *excluded_files, const char *file)
return 0;
}
-#endif
+# endif
static int writeFileToTarball(const char *fileName, struct stat *statbuf,
void *userData)
@@ -400,11 +396,11 @@ static int writeFileToTarball(const char *fileName, struct stat *statbuf,
if (header_name[0] == '\0')
return TRUE;
-# if defined CONFIG_FEATURE_TAR_EXCLUDE
+# ifdef CONFIG_FEATURE_TAR_FROM
if (exclude_file(tbInfo->excludeList, header_name)) {
return SKIP;
}
-# endif /* CONFIG_FEATURE_TAR_EXCLUDE */
+# endif /* CONFIG_FEATURE_TAR_FROM */
if (writeTarHeader(tbInfo, header_name, fileName, statbuf) == FALSE) {
return (FALSE);
@@ -555,7 +551,7 @@ static inline int writeTarFile(const int tar_fd, const int verboseFlag,
}
#endif /* tar_create */
-#ifdef CONFIG_FEATURE_TAR_EXCLUDE
+#ifdef CONFIG_FEATURE_TAR_FROM
static llist_t *append_file_list_to_list(llist_t *list)
{
FILE *src_stream;
@@ -598,31 +594,105 @@ static char get_header_tar_Z(archive_handle_t *archive_handle)
}
#endif
-static const char tar_options[]="ctxjT:X:C:f:OpvzkZ";
-
-#define CTX_CREATE 1
-#define CTX_TEST 2
-#define CTX_EXTRACT 4
-#define TAR_OPT_BZIP2 8
-#define TAR_OPT_INCLUDE 16
-#define TAR_OPT_EXCLUDE 32
-#define TAR_OPT_BASEDIR 64
-#define TAR_OPT_ARNAME 128
-#define TAR_OPT_2STDOUT 256
-#define TAR_OPT_P 512
-#define TAR_OPT_VERBOSE 1024
-#define TAR_OPT_GZIP 2048
-#define TAR_OPT_KEEP_OLD 4096
-#define TAR_OPT_UNCOMPRESS 8192
+#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)
+
+#ifdef CONFIG_FEATURE_TAR_CREATE
+# define CTX_CREATE (1 << 8)
+# define TAR_OPT_STR_CREATE "c"
+# define TAR_OPT_FLAG_CREATE 1
+#else
+//# define CTX_CREATE 0
+# define TAR_OPT_STR_CREATE ""
+# define TAR_OPT_FLAG_CREATE 0
+#endif
+
+#ifdef CONFIG_FEATURE_TAR_BZIP2
+# define TAR_OPT_BZIP2 (1 << (8 + TAR_OPT_FLAG_CREATE))
+# define TAR_OPT_STR_BZIP2 "j"
+# define TAR_OPT_FLAG_BZIP2 1
+#else
+# define TAR_OPT_STR_BZIP2 ""
+# define TAR_OPT_FLAG_BZIP2 0
+#endif
+
+#ifdef CONFIG_FEATURE_TAR_FROM
+# define TAR_OPT_FROM_FILE (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_STR_FROM "T:X:"
+# define TAR_OPT_FLAG_FROM 2
+#else
+# define TAR_OPT_STR_FROM ""
+# define TAR_OPT_FLAG_FROM 0
+#endif
+
+#ifdef CONFIG_FEATURE_TAR_GZIP
+# define TAR_OPT_GZIP (1 << (8 + TAR_OPT_FLAG_CREATE + TAR_OPT_FLAG_BZIP2 + TAR_OPT_FLAG_FROM))
+# define TAR_OPT_STR_GZIP "z"
+# define TAR_OPT_FLAG_GZIP 1
+#else
+# define TAR_OPT_STR_GZIP ""
+# define TAR_OPT_FLAG_GZIP 0
+#endif
+
+#ifdef CONFIG_FEATURE_TAR_COMPRESS
+# 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_STR_COMPRESS "Z"
+#else
+# define TAR_OPT_STR_COMPRESS ""
+#endif
+
+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;
+
+#ifdef CONFIG_FEATURE_TAR_LONG_OPTIONS
+static const struct option tar_long_options[] = {
+ { "list", 0, NULL, 't' },
+ { "extract", 0, NULL, 'x' },
+ { "directory", 1, NULL, 'C' },
+ { "file", 1, NULL, 'f' },
+ { "to-stdout", 0, NULL, 'O' },
+ { "same-permissions", 0, NULL, 'p' },
+ { "verbose", 0, NULL, 'v' },
+ { "keep-old", 0, NULL, 'k' },
+# ifdef CONFIG_FEATURE_TAR_CREATE
+ { "create", 0, NULL, 'c' },
+# endif
+# ifdef CONFIG_FEATURE_TAR_BZIP2
+ { "bzip2", 0, NULL, 'j' },
+# endif
+# ifdef CONFIG_FEATURE_TAR_FROM
+ { "from-file", 1, NULL, 'T' },
+ { "exclude-from", 1, NULL, 'X' },
+# endif
+# ifdef CONFIG_FEATURE_TAR_GZIP
+ { "gzip", 0, NULL, 'z' },
+# endif
+# ifdef CONFIG_FEATURE_TAR_COMPRESS
+ { "compress", 0, NULL, 'Z' },
+# endif
+ { 0, 0, 0, 0 }
+};
+#endif
int tar_main(int argc, char **argv)
{
char (*get_header_ptr)(archive_handle_t *) = get_header_tar;
archive_handle_t *tar_handle;
- int opt;
char *base_dir = NULL;
const char *tar_filename = "-";
- unsigned char ctx_flag = 0;
+ unsigned long opt;
+ unsigned long ctx_flag = 0;
if (argc < 2) {
bb_show_usage();
@@ -640,17 +710,29 @@ int tar_main(int argc, char **argv)
tar_handle = init_handle();
tar_handle->flags = ARCHIVE_CREATE_LEADING_DIRS | ARCHIVE_PRESERVE_DATE | ARCHIVE_EXTRACT_UNCONDITIONAL;
- bb_opt_complementaly = "c~tx:t~cx:x~ct:X*";
+ bb_opt_complementaly = "c~tx:t~cx:x~ct:X*:T*";
+#ifdef CONFIG_FEATURE_TAR_LONG_OPTIONS
+ bb_applet_long_options = tar_long_options;
+#endif
+
opt = bb_getopt_ulflags(argc, argv, tar_options,
- NULL, /* T: arg is ignored by default
- a list is an include list */
- &(tar_handle->reject),
&base_dir, /* Change to dir <optarg> */
- &tar_filename); /* archive filename */
+ &tar_filename /* archive filename */
+#ifdef CONFIG_FEATURE_TAR_FROM
+ , NULL,
+ &(tar_handle->reject)
+#endif
+ );
+
/* Check one and only one context option was given */
- if(opt & 0x80000000UL)
+ if(opt & 0x80000000UL) {
bb_show_usage();
+ }
+#ifdef CONFIG_FEATURE_TAR_CREATE
ctx_flag = opt & (CTX_CREATE | CTX_TEST | CTX_EXTRACT);
+#else
+ ctx_flag = opt & (CTX_TEST | CTX_EXTRACT);
+#endif
if (ctx_flag == 0) {
bb_show_usage();
}
@@ -683,34 +765,27 @@ int tar_main(int argc, char **argv)
tar_handle->flags &= ~ARCHIVE_EXTRACT_UNCONDITIONAL;
}
- if(opt & TAR_OPT_GZIP) {
#ifdef CONFIG_FEATURE_TAR_GZIP
+ if(opt & TAR_OPT_GZIP) {
get_header_ptr = get_header_tar_gz;
-#else
- bb_show_usage();
-#endif
}
- if(opt & TAR_OPT_BZIP2) {
+#endif
#ifdef CONFIG_FEATURE_TAR_BZIP2
+ if(opt & TAR_OPT_BZIP2) {
get_header_ptr = get_header_tar_bz2;
-#else
- bb_show_usage();
-#endif
}
- if(opt & TAR_OPT_UNCOMPRESS) {
+#endif
#ifdef CONFIG_FEATURE_TAR_COMPRESS
+ if(opt & TAR_OPT_UNCOMPRESS) {
get_header_ptr = get_header_tar_Z;
-#else
- bb_show_usage();
-#endif
}
- if(opt & TAR_OPT_EXCLUDE) {
-#ifdef CONFIG_FEATURE_TAR_EXCLUDE
- tar_handle->reject = append_file_list_to_list(tar_handle->reject);
-#else
- bb_show_usage();
#endif
+#ifdef CONFIG_FEATURE_TAR_FROM
+ if(opt & TAR_OPT_EXCLUDE_FROM) {
+ tar_handle->reject = append_file_list_to_list(tar_handle->reject);
}
+#endif
+
/* Check if we are reading from stdin */
if ((argv[optind]) && (*argv[optind] == '-')) {
/* Default is to read from stdin, so just skip to next arg */
@@ -720,8 +795,7 @@ int tar_main(int argc, char **argv)
/* Setup an array of filenames to work with */
/* TODO: This is the same as in ar, seperate function ? */
while (optind < argc) {
- char *filename_ptr;
- filename_ptr = last_char_is(argv[optind], '/');
+ char *filename_ptr = last_char_is(argv[optind], '/');
if (filename_ptr) {
*filename_ptr = '\0';
}
@@ -739,7 +813,7 @@ int tar_main(int argc, char **argv)
int flags;
#ifdef CONFIG_FEATURE_TAR_CREATE
- if (ctx_flag == CTX_CREATE) {
+ if (opt & CTX_CREATE) {
/* Make sure there is at least one file to tar up. */
if (tar_handle->accept == NULL) {
bb_error_msg_and_die("Cowardly refusing to create an empty archive");
@@ -768,7 +842,7 @@ int tar_main(int argc, char **argv)
#ifdef CONFIG_FEATURE_TAR_CREATE
/* create an archive */
- if (ctx_flag == CTX_CREATE) {
+ if (opt & CTX_CREATE) {
int verboseFlag = FALSE;
int gzipFlag = FALSE;
generated by cgit v1.1 at 2024-12-28 15:47:01 +0000