Annotation of /trunk/mkinitrd-magellan/busybox/archival/libunarchive/open_transformer.c
Parent Directory | Revision Log
Revision 532 -
(hide annotations)
(download)
Sat Sep 1 22:45:15 2007 UTC (16 years, 8 months ago) by niro
File MIME type: text/plain
File size: 884 byte(s)
Sat Sep 1 22:45:15 2007 UTC (16 years, 8 months ago) by niro
File MIME type: text/plain
File size: 884 byte(s)
-import if magellan mkinitrd; it is a fork of redhats mkinitrd-5.0.8 with all magellan patches and features; deprecates magellan-src/mkinitrd
1 | niro | 532 | /* vi: set sw=4 ts=4: */ |
2 | /* | ||
3 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. | ||
4 | */ | ||
5 | |||
6 | #include <stdlib.h> | ||
7 | #include <unistd.h> | ||
8 | |||
9 | #include "libbb.h" | ||
10 | |||
11 | #include "unarchive.h" | ||
12 | |||
13 | /* transformer(), more than meets the eye */ | ||
14 | int open_transformer(int src_fd, | ||
15 | USE_DESKTOP(long long) int (*transformer)(int src_fd, int dst_fd)) | ||
16 | { | ||
17 | int fd_pipe[2]; | ||
18 | int pid; | ||
19 | |||
20 | if (pipe(fd_pipe) != 0) { | ||
21 | bb_perror_msg_and_die("can't create pipe"); | ||
22 | } | ||
23 | |||
24 | pid = fork(); | ||
25 | if (pid == -1) { | ||
26 | bb_perror_msg_and_die("fork failed"); | ||
27 | } | ||
28 | |||
29 | if (pid == 0) { | ||
30 | /* child process */ | ||
31 | close(fd_pipe[0]); /* We don't wan't to read from the parent */ | ||
32 | // FIXME: error check? | ||
33 | transformer(src_fd, fd_pipe[1]); | ||
34 | close(fd_pipe[1]); /* Send EOF */ | ||
35 | close(src_fd); | ||
36 | exit(0); | ||
37 | /* notreached */ | ||
38 | } | ||
39 | |||
40 | /* parent process */ | ||
41 | close(fd_pipe[1]); /* Don't want to write to the child */ | ||
42 | |||
43 | return fd_pipe[0]; | ||
44 | } |