Last change
on this file since 2874 was 2725, checked in by Bruno Cornec, 13 years ago |
- Update mindi-busybox to 1.18.3 to avoid problems with the tar command which is now failing on recent versions with busybox 1.7.3
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-
Property svn:eol-style
set to
native
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File size:
1.3 KB
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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 | /* transformer(), more than meets the eye */
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10 | /*
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11 | * On MMU machine, the transform_prog is removed by macro magic
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12 | * in include/archive.h. On NOMMU, transformer is removed.
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13 | */
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14 | void FAST_FUNC open_transformer(int fd,
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15 | IF_DESKTOP(long long) int FAST_FUNC (*transformer)(int src_fd, int dst_fd),
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16 | const char *transform_prog)
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17 | {
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18 | struct fd_pair fd_pipe;
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19 | int pid;
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20 |
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21 | xpiped_pair(fd_pipe);
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22 | pid = BB_MMU ? xfork() : xvfork();
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23 | if (pid == 0) {
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24 | /* Child */
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25 | close(fd_pipe.rd); /* we don't want to read from the parent */
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26 | // FIXME: error check?
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27 | #if BB_MMU
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28 | transformer(fd, fd_pipe.wr);
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29 | if (ENABLE_FEATURE_CLEAN_UP) {
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30 | close(fd_pipe.wr); /* send EOF */
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31 | close(fd);
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32 | }
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33 | /* must be _exit! bug was actually seen here */
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34 | _exit(EXIT_SUCCESS);
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35 | #else
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36 | {
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37 | char *argv[4];
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38 | xmove_fd(fd, 0);
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39 | xmove_fd(fd_pipe.wr, 1);
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40 | argv[0] = (char*)transform_prog;
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41 | argv[1] = (char*)"-cf";
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42 | argv[2] = (char*)"-";
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43 | argv[3] = NULL;
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44 | BB_EXECVP(transform_prog, argv);
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45 | bb_perror_msg_and_die("can't execute '%s'", transform_prog);
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46 | }
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47 | #endif
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48 | /* notreached */
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49 | }
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50 |
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51 | /* parent process */
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52 | close(fd_pipe.wr); /* don't want to write to the child */
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53 | xmove_fd(fd_pipe.rd, fd);
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54 | }
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