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authorGravatar Denis Vlasenko <vda.linux@googlemail.com>2007-06-08 13:05:39 +0000
committerGravatar Denis Vlasenko <vda.linux@googlemail.com>2007-06-08 13:05:39 +0000
commitc14d39e83a7f55ab9b92e98673a281fd6565c32d (patch)
treef1cfe7f071b228cf7f1a732046cabf18fa9421b8 /archival
parentdef8260219797b0f9f734915f4918f34e85e7049 (diff)
downloadbusybox-c14d39e83a7f55ab9b92e98673a281fd6565c32d.tar.gz
busybox-c14d39e83a7f55ab9b92e98673a281fd6565c32d.tar.bz2
rmp: add optional support for bz2 data. +50 bytes of code
Diffstat (limited to 'archival')
-rw-r--r--archival/Config.in7
-rw-r--r--archival/bbunzip.c6
-rw-r--r--archival/libunarchive/decompress_bunzip2.c4
-rw-r--r--archival/libunarchive/decompress_unlzma.c2
-rw-r--r--archival/libunarchive/decompress_unzip.c4
-rw-r--r--archival/libunarchive/get_header_tar_bz2.c2
-rw-r--r--archival/libunarchive/get_header_tar_gz.c2
-rw-r--r--archival/libunarchive/get_header_tar_lzma.c2
-rw-r--r--archival/rpm.c25
-rw-r--r--archival/rpm2cpio.c2
10 files changed, 37 insertions, 19 deletions
diff --git a/archival/Config.in b/archival/Config.in
index 2741982c0..661c71ccf 100644
--- a/archival/Config.in
+++ b/archival/Config.in
@@ -133,6 +133,13 @@ config RPM
help
Mini RPM applet - queries and extracts RPM packages.
+config FEATURE_RPM_BZ2
+ bool "Enable handling of rpms with bzip2-compressed data inside"
+ default n
+ depends on RPM
+ help
+ Enable handling of rpms with bzip2-compressed data inside.
+
config TAR
bool "tar"
default n
diff --git a/archival/bbunzip.c b/archival/bbunzip.c
index 83b5637cd..bd1526b20 100644
--- a/archival/bbunzip.c
+++ b/archival/bbunzip.c
@@ -155,7 +155,7 @@ char* make_new_name_bunzip2(char *filename)
static
USE_DESKTOP(long long) int unpack_bunzip2(void)
{
- return uncompressStream(STDIN_FILENO, STDOUT_FILENO);
+ return unpack_bz2_stream(STDIN_FILENO, STDOUT_FILENO);
}
int bunzip2_main(int argc, char **argv);
@@ -242,7 +242,7 @@ USE_DESKTOP(long long) int unpack_gunzip(void)
status = uncompress(STDIN_FILENO, STDOUT_FILENO);
} else if (magic2 == 0x8b) {
check_header_gzip_or_die(STDIN_FILENO);
- status = inflate_gunzip(STDIN_FILENO, STDOUT_FILENO);
+ status = unpack_gz_stream(STDIN_FILENO, STDOUT_FILENO);
} else {
goto bad_magic;
}
@@ -292,7 +292,7 @@ char* make_new_name_unlzma(char *filename)
static
USE_DESKTOP(long long) int unpack_unlzma(void)
{
- return unlzma(STDIN_FILENO, STDOUT_FILENO);
+ return unpack_lzma_stream(STDIN_FILENO, STDOUT_FILENO);
}
int unlzma_main(int argc, char **argv);
diff --git a/archival/libunarchive/decompress_bunzip2.c b/archival/libunarchive/decompress_bunzip2.c
index a9d5d686b..fe1d3ff1c 100644
--- a/archival/libunarchive/decompress_bunzip2.c
+++ b/archival/libunarchive/decompress_bunzip2.c
@@ -700,7 +700,7 @@ void dealloc_bunzip(bunzip_data *bd)
/* Decompress src_fd to dst_fd. Stops at end of bzip data, not end of file. */
USE_DESKTOP(long long) int
-uncompressStream(int src_fd, int dst_fd)
+unpack_bz2_stream(int src_fd, int dst_fd)
{
USE_DESKTOP(long long total_written = 0;)
char *outbuf;
@@ -751,7 +751,7 @@ static char *const bunzip_errors[] = {
/* Dumb little test thing, decompress stdin to stdout */
int main(int argc, char **argv)
{
- int i = uncompressStream(0, 1);
+ int i = unpack_bz2_stream(0, 1);
char c;
if (i < 0)
diff --git a/archival/libunarchive/decompress_unlzma.c b/archival/libunarchive/decompress_unlzma.c
index 15a0275b4..907e44e94 100644
--- a/archival/libunarchive/decompress_unlzma.c
+++ b/archival/libunarchive/decompress_unlzma.c
@@ -228,7 +228,7 @@ enum {
USE_DESKTOP(long long) int
-unlzma(int src_fd, int dst_fd)
+unpack_lzma_stream(int src_fd, int dst_fd)
{
USE_DESKTOP(long long total_written = 0;)
lzma_header_t header;
diff --git a/archival/libunarchive/decompress_unzip.c b/archival/libunarchive/decompress_unzip.c
index 19ce5097a..c698763d3 100644
--- a/archival/libunarchive/decompress_unzip.c
+++ b/archival/libunarchive/decompress_unzip.c
@@ -981,7 +981,7 @@ static int inflate_get_next_window(STATE_PARAM_ONLY)
}
-/* Called from inflate_gunzip() and inflate_unzip() */
+/* Called from unpack_gz_stream() and inflate_unzip() */
/* NB: bytebuffer is allocated here but freeing it is left to the caller! */
static USE_DESKTOP(long long) int
inflate_unzip_internal(STATE_PARAM int in, int out)
@@ -1056,7 +1056,7 @@ inflate_unzip(inflate_unzip_result *res, unsigned bufsize, int in, int out)
USE_DESKTOP(long long) int
-inflate_gunzip(int in, int out)
+unpack_gz_stream(int in, int out)
{
uint32_t stored_crc = 0;
unsigned count;
diff --git a/archival/libunarchive/get_header_tar_bz2.c b/archival/libunarchive/get_header_tar_bz2.c
index d8715c0bb..e11f44cad 100644
--- a/archival/libunarchive/get_header_tar_bz2.c
+++ b/archival/libunarchive/get_header_tar_bz2.c
@@ -11,7 +11,7 @@ char get_header_tar_bz2(archive_handle_t *archive_handle)
/* Can't lseek over pipes */
archive_handle->seek = seek_by_read;
- archive_handle->src_fd = open_transformer(archive_handle->src_fd, uncompressStream);
+ archive_handle->src_fd = open_transformer(archive_handle->src_fd, unpack_bz2_stream);
archive_handle->offset = 0;
while (get_header_tar(archive_handle) == EXIT_SUCCESS) /**/;
diff --git a/archival/libunarchive/get_header_tar_gz.c b/archival/libunarchive/get_header_tar_gz.c
index 69126e0ba..85070d978 100644
--- a/archival/libunarchive/get_header_tar_gz.c
+++ b/archival/libunarchive/get_header_tar_gz.c
@@ -20,7 +20,7 @@ char get_header_tar_gz(archive_handle_t *archive_handle)
check_header_gzip_or_die(archive_handle->src_fd);
- archive_handle->src_fd = open_transformer(archive_handle->src_fd, inflate_gunzip);
+ archive_handle->src_fd = open_transformer(archive_handle->src_fd, unpack_gz_stream);
archive_handle->offset = 0;
while (get_header_tar(archive_handle) == EXIT_SUCCESS) /**/;
diff --git a/archival/libunarchive/get_header_tar_lzma.c b/archival/libunarchive/get_header_tar_lzma.c
index 5c02767de..771f664f2 100644
--- a/archival/libunarchive/get_header_tar_lzma.c
+++ b/archival/libunarchive/get_header_tar_lzma.c
@@ -14,7 +14,7 @@ char get_header_tar_lzma(archive_handle_t * archive_handle)
/* Can't lseek over pipes */
archive_handle->seek = seek_by_read;
- archive_handle->src_fd = open_transformer(archive_handle->src_fd, unlzma);
+ archive_handle->src_fd = open_transformer(archive_handle->src_fd, unpack_lzma_stream);
archive_handle->offset = 0;
while (get_header_tar(archive_handle) == EXIT_SUCCESS) /**/;
diff --git a/archival/rpm.c b/archival/rpm.c
index 71ed32e41..674ee2640 100644
--- a/archival/rpm.c
+++ b/archival/rpm.c
@@ -187,10 +187,11 @@ int rpm_main(int argc, char **argv)
static void extract_cpio_gz(int fd)
{
+ USE_DESKTOP(long long) int (*xformer)(int src_fd, int dst_fd);
archive_handle_t *archive_handle;
unsigned char magic[2];
- /* Initialise */
+ /* Initialize */
archive_handle = init_handle();
archive_handle->seek = seek_by_read;
//archive_handle->action_header = header_list;
@@ -201,16 +202,26 @@ static void extract_cpio_gz(int fd)
archive_handle->offset = 0;
xread(archive_handle->src_fd, &magic, 2);
+ xformer = unpack_gz_stream;
if ((magic[0] != 0x1f) || (magic[1] != 0x8b)) {
- bb_error_msg_and_die("invalid gzip magic");
- }
- check_header_gzip_or_die(archive_handle->src_fd);
- xchdir("/"); /* Install RPM's to root */
+ if (ENABLE_FEATURE_RPM_BZ2
+ && (magic[0] == 0x42) && (magic[1] == 0x5a)) {
+ xformer = unpack_bz2_stream;
+ /* We can do better, need modifying unpack_bz2_stream to not require
+ * first 2 bytes. Not very hard to do... I mean, TODO :) */
+ xlseek(archive_handle->src_fd, -2, SEEK_CUR);
+ } else
+ bb_error_msg_and_die("no gzip"
+ USE_FEATURE_RPM_BZ2("/bzip")
+ " magic");
+ } else
+ check_header_gzip_or_die(archive_handle->src_fd);
- archive_handle->src_fd = open_transformer(archive_handle->src_fd, inflate_gunzip);
+ xchdir("/"); /* Install RPM's to root */
+ archive_handle->src_fd = open_transformer(archive_handle->src_fd, xformer);
archive_handle->offset = 0;
while (get_header_cpio(archive_handle) == EXIT_SUCCESS)
- /* loop */;
+ continue;
}
diff --git a/archival/rpm2cpio.c b/archival/rpm2cpio.c
index 460aeaff2..dcd9265b3 100644
--- a/archival/rpm2cpio.c
+++ b/archival/rpm2cpio.c
@@ -80,7 +80,7 @@ int rpm2cpio_main(int argc, char **argv)
}
check_header_gzip_or_die(rpm_fd);
- if (inflate_gunzip(rpm_fd, STDOUT_FILENO) < 0) {
+ if (unpack_gz_stream(rpm_fd, STDOUT_FILENO) < 0) {
bb_error_msg("error inflating");
}