diff options
author | Glenn L McGrath <bug1@ihug.co.nz> | 2002-09-25 06:47:48 +0400 |
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committer | Glenn L McGrath <bug1@ihug.co.nz> | 2002-09-25 06:47:48 +0400 |
commit | 7ca04f328e22fcbee4659d73f9a72dfdf1dd6a23 (patch) | |
tree | f38c7ef4317eea28c6abdb0adbbb286fe041711e /archival/libunarchive/get_header_tar_gz.c | |
parent | ecfa290cfd4953598e6d91989bd66ac16e135f84 (diff) |
New common unarchive code.
Diffstat (limited to 'archival/libunarchive/get_header_tar_gz.c')
-rw-r--r-- | archival/libunarchive/get_header_tar_gz.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/archival/libunarchive/get_header_tar_gz.c b/archival/libunarchive/get_header_tar_gz.c new file mode 100644 index 000000000..c06beac9d --- /dev/null +++ b/archival/libunarchive/get_header_tar_gz.c @@ -0,0 +1,73 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Library General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <sys/types.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include "libbb.h" +#include "unarchive.h" + +extern char get_header_tar_gz(archive_handle_t *archive_handle) +{ + int fd_pipe[2]; + int pid; + + check_header_gzip(archive_handle->src_fd); + + if (pipe(fd_pipe) != 0) { + error_msg_and_die("Can't create pipe\n"); + } + + pid = fork(); + if (pid == -1) { + error_msg_and_die("Fork failed\n"); + } + + if (pid == 0) { + /* child process */ + close(fd_pipe[0]); /* We don't wan't to read from the pipe */ + inflate(archive_handle->src_fd, fd_pipe[1]); + check_trailer_gzip(archive_handle->src_fd); + close(fd_pipe[1]); /* Send EOF */ + exit(0); + /* notreached */ + } + /* parent process */ + close(fd_pipe[1]); /* Don't want to write down the pipe */ + close(archive_handle->src_fd); + + archive_handle->src_fd = fd_pipe[0]; + + while (get_header_tar(archive_handle) == EXIT_SUCCESS); + + if (kill(pid, SIGTERM) == -1) { + error_msg_and_die("Couldnt kill gunzip process"); + } + + /* I dont think this is needed */ +#if 0 + if (waitpid(pid, NULL, 0) == -1) { + error_msg("Couldnt wait ?"); + } +#endif + + /* Can only do one file at a time */ + return(EXIT_FAILURE); +} + |