archival/*: shrink by reusing sufficiently similar functions
function old new delta
append_ext - 16 +16
unxz_main 77 83 +6
unlzma_main 77 83 +6
uncompress_main 42 48 +6
gzip_main 184 190 +6
bzip2_main 114 120 +6
bunzip2_main 61 67 +6
bbunpack 469 475 +6
send_tree 355 360 +5
lzop_main 89 92 +3
gunzip_main 61 64 +3
make_new_name_lzop 84 82 -2
make_new_name_gunzip 114 112 -2
make_new_name_unxz 14 - -14
make_new_name_unlzma 14 - -14
make_new_name_uncompress 14 - -14
make_new_name_bunzip2 14 - -14
make_new_name_gzip 17 - -17
make_new_name_bzip2 17 - -17
------------------------------------------------------------------------------
(add/remove: 1/6 grow/shrink: 10/2 up/down: 69/-94) Total: -25 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/archival/bbunzip.c b/archival/bbunzip.c
index 86adb6e..08db275 100644
--- a/archival/bbunzip.c
+++ b/archival/bbunzip.c
@@ -27,9 +27,15 @@
return 0;
}
+char* FAST_FUNC append_ext(char *filename, const char *expected_ext)
+{
+ return xasprintf("%s.%s", filename, expected_ext);
+}
+
int FAST_FUNC bbunpack(char **argv,
- char* (*make_new_name)(char *filename),
- IF_DESKTOP(long long) int (*unpacker)(unpack_info_t *info)
+ IF_DESKTOP(long long) int FAST_FUNC (*unpacker)(unpack_info_t *info),
+ char* FAST_FUNC (*make_new_name)(char *filename, const char *expected_ext),
+ const char *expected_ext
)
{
struct stat stat_buf;
@@ -68,7 +74,7 @@
/* Open dst if we are going to unpack to file */
if (filename) {
- new_name = make_new_name(filename);
+ new_name = make_new_name(filename, expected_ext);
if (!new_name) {
bb_error_msg("%s: unknown suffix - ignored", filename);
goto err;
@@ -142,7 +148,7 @@
#if ENABLE_UNCOMPRESS || ENABLE_BUNZIP2 || ENABLE_UNLZMA || ENABLE_UNXZ
static
-char* make_new_name_generic(char *filename, const char *expected_ext)
+char* FAST_FUNC make_new_name_generic(char *filename, const char *expected_ext)
{
char *extension = strrchr(filename, '.');
if (!extension || strcmp(extension + 1, expected_ext) != 0) {
@@ -163,12 +169,7 @@
*/
#if ENABLE_UNCOMPRESS
static
-char* make_new_name_uncompress(char *filename)
-{
- return make_new_name_generic(filename, "Z");
-}
-static
-IF_DESKTOP(long long) int unpack_uncompress(unpack_info_t *info UNUSED_PARAM)
+IF_DESKTOP(long long) int FAST_FUNC unpack_uncompress(unpack_info_t *info UNUSED_PARAM)
{
IF_DESKTOP(long long) int status = -1;
@@ -185,7 +186,7 @@
getopt32(argv, "cf");
argv += optind;
- return bbunpack(argv, make_new_name_uncompress, unpack_uncompress);
+ return bbunpack(argv, unpack_uncompress, make_new_name_generic, "Z");
}
#endif
@@ -219,7 +220,7 @@
*/
#if ENABLE_GUNZIP
static
-char* make_new_name_gunzip(char *filename)
+char* FAST_FUNC make_new_name_gunzip(char *filename, const char *expected_ext UNUSED_PARAM)
{
char *extension = strrchr(filename, '.');
@@ -244,7 +245,7 @@
return filename;
}
static
-IF_DESKTOP(long long) int unpack_gunzip(unpack_info_t *info)
+IF_DESKTOP(long long) int FAST_FUNC unpack_gunzip(unpack_info_t *info)
{
IF_DESKTOP(long long) int status = -1;
@@ -292,7 +293,7 @@
if (applet_name[1] == 'c')
option_mask32 |= OPT_STDOUT;
- return bbunpack(argv, make_new_name_gunzip, unpack_gunzip);
+ return bbunpack(argv, unpack_gunzip, make_new_name_gunzip, /*unused:*/ NULL);
}
#endif
@@ -305,12 +306,7 @@
*/
#if ENABLE_BUNZIP2
static
-char* make_new_name_bunzip2(char *filename)
-{
- return make_new_name_generic(filename, "bz2");
-}
-static
-IF_DESKTOP(long long) int unpack_bunzip2(unpack_info_t *info UNUSED_PARAM)
+IF_DESKTOP(long long) int FAST_FUNC unpack_bunzip2(unpack_info_t *info UNUSED_PARAM)
{
return unpack_bz2_stream_prime(STDIN_FILENO, STDOUT_FILENO);
}
@@ -322,7 +318,7 @@
if (applet_name[2] == 'c') /* bzcat */
option_mask32 |= OPT_STDOUT;
- return bbunpack(argv, make_new_name_bunzip2, unpack_bunzip2);
+ return bbunpack(argv, unpack_bunzip2, make_new_name_generic, "bz2");
}
#endif
@@ -337,12 +333,7 @@
*/
#if ENABLE_UNLZMA
static
-char* make_new_name_unlzma(char *filename)
-{
- return make_new_name_generic(filename, "lzma");
-}
-static
-IF_DESKTOP(long long) int unpack_unlzma(unpack_info_t *info UNUSED_PARAM)
+IF_DESKTOP(long long) int FAST_FUNC unpack_unlzma(unpack_info_t *info UNUSED_PARAM)
{
return unpack_lzma_stream(STDIN_FILENO, STDOUT_FILENO);
}
@@ -360,19 +351,14 @@
option_mask32 |= OPT_STDOUT;
argv += optind;
- return bbunpack(argv, make_new_name_unlzma, unpack_unlzma);
+ return bbunpack(argv, unpack_unlzma, make_new_name_generic, "lzma");
}
#endif
#if ENABLE_UNXZ
static
-char* make_new_name_unxz(char *filename)
-{
- return make_new_name_generic(filename, "xz");
-}
-static
-IF_DESKTOP(long long) int unpack_unxz(unpack_info_t *info UNUSED_PARAM)
+IF_DESKTOP(long long) int FAST_FUNC unpack_unxz(unpack_info_t *info UNUSED_PARAM)
{
return unpack_xz_stream(STDIN_FILENO, STDOUT_FILENO);
}
@@ -390,6 +376,6 @@
option_mask32 |= OPT_STDOUT;
argv += optind;
- return bbunpack(argv, make_new_name_unxz, unpack_unxz);
+ return bbunpack(argv, unpack_unxz, make_new_name_generic, "xz");
}
#endif
diff --git a/archival/bzip2.c b/archival/bzip2.c
index bbaf566..f1c84d6 100644
--- a/archival/bzip2.c
+++ b/archival/bzip2.c
@@ -102,7 +102,7 @@
}
static
-IF_DESKTOP(long long) int compressStream(unpack_info_t *info UNUSED_PARAM)
+IF_DESKTOP(long long) int FAST_FUNC compressStream(unpack_info_t *info UNUSED_PARAM)
{
IF_DESKTOP(long long) int total;
ssize_t count;
@@ -135,12 +135,6 @@
return total;
}
-static
-char* make_new_name_bzip2(char *filename)
-{
- return xasprintf("%s.bz2", filename);
-}
-
int bzip2_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int bzip2_main(int argc UNUSED_PARAM, char **argv)
{
@@ -181,5 +175,5 @@
argv += optind;
option_mask32 &= 0x7; /* ignore all except -cfv */
- return bbunpack(argv, make_new_name_bzip2, compressStream);
+ return bbunpack(argv, compressStream, append_ext, "bz2");
}
diff --git a/archival/gzip.c b/archival/gzip.c
index a327d54..5cc553a 100644
--- a/archival/gzip.c
+++ b/archival/gzip.c
@@ -1998,13 +1998,7 @@
/* ======================================================================== */
static
-char* make_new_name_gzip(char *filename)
-{
- return xasprintf("%s.gz", filename);
-}
-
-static
-IF_DESKTOP(long long) int pack_gzip(unpack_info_t *info UNUSED_PARAM)
+IF_DESKTOP(long long) int FAST_FUNC pack_gzip(unpack_info_t *info UNUSED_PARAM)
{
struct stat s;
@@ -2063,7 +2057,7 @@
#endif
/*
- * Linux kernel build uses gzip -d -n. We accept and ignore it.
+ * Linux kernel build uses gzip -d -n. We accept and ignore -n.
* Man page says:
* -n --no-name
* gzip: do not save the original file name and time stamp.
@@ -2113,5 +2107,5 @@
/* Initialise the CRC32 table */
G1.crc_32_tab = crc32_filltable(NULL, 0);
- return bbunpack(argv, make_new_name_gzip, pack_gzip);
+ return bbunpack(argv, pack_gzip, append_ext, "gz");
}
diff --git a/archival/lzop.c b/archival/lzop.c
index ceace04..ab4d34c 100644
--- a/archival/lzop.c
+++ b/archival/lzop.c
@@ -1042,7 +1042,7 @@
return lzo_decompress(&header);
}
-static char* make_new_name_lzop(char *filename)
+static char* FAST_FUNC make_new_name_lzop(char *filename, const char *expected_ext UNUSED_PARAM)
{
if (option_mask32 & OPT_DECOMPRESS) {
char *extension = strrchr(filename, '.');
@@ -1054,7 +1054,7 @@
return xasprintf("%s.lzo", filename);
}
-static IF_DESKTOP(long long) int pack_lzop(unpack_info_t *info UNUSED_PARAM)
+static IF_DESKTOP(long long) int FAST_FUNC pack_lzop(unpack_info_t *info UNUSED_PARAM)
{
if (option_mask32 & OPT_DECOMPRESS)
return do_lzo_decompress();
@@ -1074,5 +1074,5 @@
option_mask32 |= OPT_DECOMPRESS;
G.lzo_crc32_table = crc32_filltable(NULL, 0);
- return bbunpack(argv, make_new_name_lzop, pack_lzop);
+ return bbunpack(argv, pack_lzop, make_new_name_lzop, /*unused:*/ NULL);
}
diff --git a/include/unarchive.h b/include/unarchive.h
index 783a943..aa7ecec 100644
--- a/include/unarchive.h
+++ b/include/unarchive.h
@@ -155,9 +155,12 @@
/* wrapper which checks first two bytes to be "BZ" */
IF_DESKTOP(long long) int unpack_bz2_stream_prime(int src_fd, int dst_fd) FAST_FUNC;
+char* append_ext(char *filename, const char *expected_ext) FAST_FUNC;
int bbunpack(char **argv,
- char* (*make_new_name)(char *filename),
- IF_DESKTOP(long long) int (*unpacker)(unpack_info_t *info)) FAST_FUNC;
+ IF_DESKTOP(long long) int FAST_FUNC (*unpacker)(unpack_info_t *info),
+ char* FAST_FUNC (*make_new_name)(char *filename, const char *expected_ext),
+ const char *expected_ext
+) FAST_FUNC;
#if BB_MMU
void open_transformer(int fd,