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authorGlenn L McGrath2002-11-19 08:22:03 +0000
committerGlenn L McGrath2002-11-19 08:22:03 +0000
commita0d395eac9c7f8c6db288df5b345146a7da4977b (patch)
treea9738dfb95c7945f8c065436e0f96d54ae5354c4 /archival/libunarchive/get_header_tar_gz.c
parentae01fa99e1726ecc0b69d66c1bbdbf72694e969e (diff)
downloadbusybox-a0d395eac9c7f8c6db288df5b345146a7da4977b.zip
busybox-a0d395eac9c7f8c6db288df5b345146a7da4977b.tar.gz
Use read_gz, remove fork() woohoo!
Diffstat (limited to 'archival/libunarchive/get_header_tar_gz.c')
-rw-r--r--archival/libunarchive/get_header_tar_gz.c53
1 files changed, 9 insertions, 44 deletions
diff --git a/archival/libunarchive/get_header_tar_gz.c b/archival/libunarchive/get_header_tar_gz.c
index f77b775..a4355d2 100644
--- a/archival/libunarchive/get_header_tar_gz.c
+++ b/archival/libunarchive/get_header_tar_gz.c
@@ -14,25 +14,15 @@
* 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;
unsigned char magic[2];
- /* Cant lseek over pipe's */
- archive_handle->read = read;
- archive_handle->seek = seek_by_char;
-
archive_xread_all(archive_handle, &magic, 2);
if ((magic[0] != 0x1f) || (magic[1] != 0x8b)) {
error_msg_and_die("Invalid gzip magic");
@@ -40,45 +30,20 @@ extern char get_header_tar_gz(archive_handle_t *archive_handle)
check_header_gzip(archive_handle->src_fd);
- if (pipe(fd_pipe) != 0) {
- error_msg_and_die("Can't create pipe");
- }
+ GZ_gzReadOpen(archive_handle->src_fd, 0, 0);
- 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];
+ archive_handle->read = read_gz;
+ archive_handle->seek = seek_by_char;
archive_handle->offset = 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
+ /* Cleanup */
+ GZ_gzReadClose();
- /* Can only do one file at a time */
+ check_trailer_gzip(archive_handle->src_fd);
+
+ /* Can only do one tar.bz2 per archive */
return(EXIT_FAILURE);
}