Changeset 1770 in MondoRescue for branches/stable/mindi-busybox/archival/libunarchive/get_header_tar_gz.c
- Timestamp:
- Nov 6, 2007, 11:01:53 AM (16 years ago)
- File:
-
- 1 edited
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branches/stable/mindi-busybox/archival/libunarchive/get_header_tar_gz.c
r821 r1770 1 /* vi: set sw=4 ts=4: */ 1 2 /* 2 * This program is free software; you can redistribute it and/or modify 3 * it under the terms of the GNU General Public License as published by 4 * the Free Software Foundation; either version 2 of the License, or 5 * (at your option) any later version. 6 * 7 * This program is distributed in the hope that it will be useful, 8 * but WITHOUT ANY WARRANTY; without even the implied warranty of 9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10 * GNU Library General Public License for more details. 11 * 12 * You should have received a copy of the GNU General Public License 13 * along with this program; if not, write to the Free Software 14 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 3 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. 15 4 */ 16 17 #include <stdlib.h>18 5 19 6 #include "libbb.h" … … 22 9 char get_header_tar_gz(archive_handle_t *archive_handle) 23 10 { 11 #if BB_MMU 24 12 unsigned char magic[2]; 13 #endif 25 14 26 /* Can t lseek over pipe's */27 archive_handle->seek = seek_by_ char;15 /* Can't lseek over pipes */ 16 archive_handle->seek = seek_by_read; 28 17 29 archive_xread_all(archive_handle, &magic, 2); 18 /* Check gzip magic only if open_transformer will invoke unpack_gz_stream (MMU case). 19 * Otherwise, it will invoke an external helper "gunzip -cf" (NOMMU case) which will 20 * need the header. */ 21 #if BB_MMU 22 xread(archive_handle->src_fd, &magic, 2); 30 23 if ((magic[0] != 0x1f) || (magic[1] != 0x8b)) { 31 bb_error_msg_and_die(" Invalid gzip magic");24 bb_error_msg_and_die("invalid gzip magic"); 32 25 } 33 26 34 check_header_gzip(archive_handle->src_fd); 27 check_header_gzip_or_die(archive_handle->src_fd); 28 #endif 35 29 36 archive_handle->src_fd = open_transformer(archive_handle->src_fd, inflate_gunzip);30 archive_handle->src_fd = open_transformer(archive_handle->src_fd, unpack_gz_stream, "gunzip", "gunzip", "-cf", "-", NULL); 37 31 archive_handle->offset = 0; 38 while (get_header_tar(archive_handle) == EXIT_SUCCESS) ;32 while (get_header_tar(archive_handle) == EXIT_SUCCESS) /**/; 39 33 40 34 /* Can only do one file at a time */ 41 return (EXIT_FAILURE);35 return EXIT_FAILURE; 42 36 }
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