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| author | Natanael Copa <natanael.copa@gmail.com> | 2012-04-24 17:06:19 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2012-05-18 16:34:30 +0200 |
| commit | 044610413767eda4350c5adf35cf5e69a6d6df8f (patch) | |
| tree | 285eda8f28514812b3ebc3285e14168e2dbf49d0 | |
| parent | b6beada5a1432645090b441531b5909983cfbf10 (diff) | |
| download | busybox-044610413767eda4350c5adf35cf5e69a6d6df8f.tar.gz | |
tar: implement --no-recursion
function old new delta
tar_longopts 259 274 +15
.rodata 5757 5772 +15
tar_main 1038 1052 +14
writeTarFile 362 353 -9
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/1 up/down: 44/-9) Total: 35 bytes
text data bss dec hex filename
81457 1706 8344 91507 16573 busybox_old
81477 1706 8344 91527 16587 busybox_unstripped
Signed-off-by: Natanael Copa <natanael.copa@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | archival/tar.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/archival/tar.c b/archival/tar.c index cf972c24c..a64d6510f 100644 --- a/archival/tar.c +++ b/archival/tar.c @@ -60,8 +60,8 @@ #if !ENABLE_FEATURE_SEAMLESS_GZ && !ENABLE_FEATURE_SEAMLESS_BZ2 /* Do not pass gzip flag to writeTarFile() */ -#define writeTarFile(tar_fd, verboseFlag, dereferenceFlag, include, exclude, gzip) \ - writeTarFile(tar_fd, verboseFlag, dereferenceFlag, include, exclude) +#define writeTarFile(tar_fd, verboseFlag, recurseFlags, include, exclude, gzip) \ + writeTarFile(tar_fd, verboseFlag, recurseFlags, include, exclude) #endif @@ -598,7 +598,7 @@ static void NOINLINE vfork_compressor(int tar_fd, int gzip) /* gcc 4.2.1 inlines it, making code bigger */ static NOINLINE int writeTarFile(int tar_fd, int verboseFlag, - int dereferenceFlag, const llist_t *include, + int recurseFlags, const llist_t *include, const llist_t *exclude, int gzip) { int errorFlag = FALSE; @@ -621,8 +621,7 @@ static NOINLINE int writeTarFile(int tar_fd, int verboseFlag, /* Read the directory/files and iterate over them one at a time */ while (include) { - if (!recursive_action(include->data, ACTION_RECURSE | - (dereferenceFlag ? ACTION_FOLLOWLINKS : 0), + if (!recursive_action(include->data, recurseFlags, writeFileToTarball, writeFileToTarball, &tbInfo, 0) ) { errorFlag = TRUE; @@ -662,7 +661,7 @@ static NOINLINE int writeTarFile(int tar_fd, int verboseFlag, } #else int writeTarFile(int tar_fd, int verboseFlag, - int dereferenceFlag, const llist_t *include, + int recurseFlags, const llist_t *include, const llist_t *exclude, int gzip); #endif /* FEATURE_TAR_CREATE */ @@ -749,6 +748,7 @@ static llist_t *append_file_list_to_list(llist_t *list) // o no-same-owner // p same-permissions // k keep-old +// no-recursion // numeric-owner // no-same-permissions // overwrite @@ -768,6 +768,7 @@ enum { IF_FEATURE_SEAMLESS_Z( OPTBIT_COMPRESS ,) // 16th bit IF_FEATURE_TAR_NOPRESERVE_TIME(OPTBIT_NOPRESERVE_TIME,) #if ENABLE_FEATURE_TAR_LONG_OPTIONS + OPTBIT_NORECURSION, IF_FEATURE_TAR_TO_COMMAND(OPTBIT_2COMMAND ,) OPTBIT_NUMERIC_OWNER, OPTBIT_NOPRESERVE_PERM, @@ -791,6 +792,7 @@ enum { OPT_GZIP = IF_FEATURE_SEAMLESS_GZ( (1 << OPTBIT_GZIP )) + 0, // z OPT_COMPRESS = IF_FEATURE_SEAMLESS_Z( (1 << OPTBIT_COMPRESS )) + 0, // Z OPT_NOPRESERVE_TIME = IF_FEATURE_TAR_NOPRESERVE_TIME((1 << OPTBIT_NOPRESERVE_TIME)) + 0, // m + OPT_NORECURSION = IF_FEATURE_TAR_LONG_OPTIONS((1 << OPTBIT_NORECURSION )) + 0, // no-recursion OPT_2COMMAND = IF_FEATURE_TAR_TO_COMMAND( (1 << OPTBIT_2COMMAND )) + 0, // to-command OPT_NUMERIC_OWNER = IF_FEATURE_TAR_LONG_OPTIONS((1 << OPTBIT_NUMERIC_OWNER )) + 0, // numeric-owner OPT_NOPRESERVE_PERM = IF_FEATURE_TAR_LONG_OPTIONS((1 << OPTBIT_NOPRESERVE_PERM)) + 0, // no-same-permissions @@ -835,6 +837,7 @@ static const char tar_longopts[] ALIGN1 = # if ENABLE_FEATURE_TAR_NOPRESERVE_TIME "touch\0" No_argument "m" # endif + "no-recursion\0" No_argument "\xfa" # if ENABLE_FEATURE_TAR_TO_COMMAND "to-command\0" Required_argument "\xfb" # endif @@ -1050,7 +1053,9 @@ int tar_main(int argc UNUSED_PARAM, char **argv) zipMode = 2; #endif /* NB: writeTarFile() closes tar_handle->src_fd */ - return writeTarFile(tar_handle->src_fd, verboseFlag, opt & OPT_DEREFERENCE, + return writeTarFile(tar_handle->src_fd, verboseFlag, + (opt & OPT_DEREFERENCE ? ACTION_FOLLOWLINKS : 0) + | (opt & OPT_NORECURSION ? 0 : ACTION_RECURSE), tar_handle->accept, tar_handle->reject, zipMode); } |