mirror of
https://github.com/sheumann/hush.git
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926031b764
function old new delta launch_helper 170 169 -1 setup_heredoc 312 302 -10 handle_dir_common 367 354 -13 expand_vars_to_list 2456 2443 -13 open_transformer 89 74 -15 data_extract_to_command 439 423 -16 do_ipaddr 1406 1389 -17 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/7 up/down: 0/-85) Total: -85 bytes Signed-off-by: Pascal Bellard <pascal.bellard@ads-lu.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*/
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#include "libbb.h"
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#include "unarchive.h"
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/* transformer(), more than meets the eye */
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/*
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* On MMU machine, the transform_prog is removed by macro magic
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* in include/unarchive.h. On NOMMU, transformer is removed.
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*/
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void FAST_FUNC open_transformer(int fd,
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IF_DESKTOP(long long) int FAST_FUNC (*transformer)(int src_fd, int dst_fd),
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const char *transform_prog)
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{
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struct fd_pair fd_pipe;
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int pid;
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xpiped_pair(fd_pipe);
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pid = BB_MMU ? xfork() : xvfork();
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if (pid == 0) {
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/* Child */
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close(fd_pipe.rd); /* we don't want to read from the parent */
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// FIXME: error check?
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#if BB_MMU
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transformer(fd, fd_pipe.wr);
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if (ENABLE_FEATURE_CLEAN_UP) {
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close(fd_pipe.wr); /* send EOF */
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close(fd);
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}
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/* must be _exit! bug was actually seen here */
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_exit(EXIT_SUCCESS);
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#else
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{
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char *argv[4];
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xmove_fd(fd, 0);
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xmove_fd(fd_pipe.wr, 1);
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argv[0] = (char*)transform_prog;
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argv[1] = (char*)"-cf";
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argv[2] = (char*)"-";
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argv[3] = NULL;
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BB_EXECVP(transform_prog, argv);
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bb_perror_msg_and_die("can't execute '%s'", transform_prog);
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}
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#endif
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/* notreached */
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}
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/* parent process */
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close(fd_pipe.wr); /* don't want to write to the child */
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xmove_fd(fd_pipe.rd, fd);
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}
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