Last change
on this file since 3343 was 3320, checked in by Bruno Cornec, 10 years ago |
- Re-add (thanks git BTW) the 2.2.9 branch which had been destroyed in
the move to 3.0
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-
Property svn:eol-style
set to
native
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File size:
981 bytes
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Rev | Line | |
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[3320] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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| 4 | */
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| 5 |
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| 6 | #include "libbb.h"
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| 7 | #include "archive.h"
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| 8 |
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| 9 | char FAST_FUNC get_header_tar_gz(archive_handle_t *archive_handle)
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| 10 | {
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| 11 | #if BB_MMU
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| 12 | unsigned char magic[2];
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| 13 | #endif
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| 14 |
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| 15 | /* Can't lseek over pipes */
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| 16 | archive_handle->seek = seek_by_read;
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| 17 |
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| 18 | /* Check gzip magic only if open_transformer will invoke unpack_gz_stream (MMU case).
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| 19 | * Otherwise, it will invoke an external helper "gunzip -cf" (NOMMU case) which will
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| 20 | * need the header. */
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| 21 | #if BB_MMU
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| 22 | xread(archive_handle->src_fd, &magic, 2);
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| 23 | /* Can skip this check, but error message will be less clear */
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| 24 | if ((magic[0] != 0x1f) || (magic[1] != 0x8b)) {
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| 25 | bb_error_msg_and_die("invalid gzip magic");
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| 26 | }
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| 27 | #endif
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| 28 |
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| 29 | open_transformer(archive_handle->src_fd, unpack_gz_stream, "gunzip");
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| 30 | archive_handle->offset = 0;
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| 31 | while (get_header_tar(archive_handle) == EXIT_SUCCESS)
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| 32 | continue;
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| 33 |
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| 34 | /* Can only do one file at a time */
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| 35 | return EXIT_FAILURE;
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| 36 | }
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