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Patch from Adam Slattery to add bzip2 support to rpm2cpio

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This commit is contained in:
Glenn L McGrath 2004-07-23 01:20:57 +00:00
parent 4d405bbc05
commit b875631754
1 changed files with 63 additions and 0 deletions
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patches/rpm2cpio_bzip2.patch Normal file
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@ -0,0 +1,63 @@
diff -ur busybox/archival/Config.in busybox/archival/Config.in
--- busybox/archival/Config.in Sun May 23 09:15:37 2004
+++ busybox/archival/Config.in Sun May 23 09:15:58 2004
@@ -127,6 +127,14 @@
help
Converts an RPM file into a CPIO archive.
+config CONFIG_FEATURE_RPM2CPIO_BZIP2
+ bool " Support bzip2 decompression"
+ default n
+ depends on CONFIG_RPM2CPIO
+ help
+ If you enable this option you'll be able to extract
+ rpms compressed with bzip2.
+
config CONFIG_RPM
bool "rpm"
default n
diff -ur busybox/archival/libunarchive/Makefile.in busybox/archival/libunarchive/Makefile.in
--- busybox/archival/libunarchive/Makefile.in Sun May 23 09:15:04 2004
+++ busybox/archival/libunarchive/Makefile.in Sun May 23 09:16:42 2004
@@ -65,6 +65,7 @@
LIBUNARCHIVE-$(CONFIG_GUNZIP) += $(GUNZIP_FILES)
LIBUNARCHIVE-$(CONFIG_FEATURE_GUNZIP_UNCOMPRESS) += decompress_uncompress.o
LIBUNARCHIVE-$(CONFIG_RPM2CPIO) += $(GUNZIP_FILES) get_header_cpio.o
+LIBUNARCHIVE-$(CONFIG_FEATURE_RPM2CPIO_BZIP2) += decompress_bunzip2.o
LIBUNARCHIVE-$(CONFIG_RPM) += $(GUNZIP_FILES) get_header_cpio.o
LIBUNARCHIVE-$(CONFIG_TAR) += get_header_tar.o
LIBUNARCHIVE-$(CONFIG_FEATURE_TAR_BZIP2) += decompress_bunzip2.o get_header_tar_bz2.o
diff -ur busybox/archival/rpm2cpio.c busybox/archival/rpm2cpio.c
--- busybox/archival/rpm2cpio.c Sun May 23 09:15:04 2004
+++ busybox/archival/rpm2cpio.c Sun May 23 09:19:03 2004
@@ -91,14 +91,26 @@
skip_header(rpm_fd);
bb_xread_all(rpm_fd, &magic, 2);
- if ((magic[0] != 0x1f) || (magic[1] != 0x8b)) {
- bb_error_msg_and_die("Invalid gzip magic");
+ if ((magic[0] == 0x1f) || (magic[1] == 0x8b)) {
+ check_header_gzip(rpm_fd);
+ if (inflate_gunzip(rpm_fd, fileno(stdout)) != 0)
+ bb_error_msg("Error inflating (gzip)");
}
- check_header_gzip(rpm_fd);
- if (inflate_gunzip(rpm_fd, STDOUT_FILENO) != 0) {
- bb_error_msg("Error inflating");
+ if ((magic[0] == 'B') && (magic[1] == 'Z')) {
+#ifdef CONFIG_FEATURE_RPM2CPIO_BZIP2
+ /* return to position before magic (eek..!) */
+ lseek(rpm_fd, -2, SEEK_CUR);
+ if(uncompressStream(rpm_fd, fileno(stdout)) != 0)
+ bb_error_msg("Error inflating (bzip2)");
+#else
+ bb_error_msg_and_die("bzip2 not supported");
+#endif
}
+
+ else
+ bb_error_msg_and_die("not gzip or bzip2 compressed");
+
close(rpm_fd);