50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/*
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* Permission to use, copy, modify, and/or distribute this software for
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* any purpose with or without fee is hereby granted.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
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* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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int main(void) {
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if (fork()) {
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int err;
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wait(&err);
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return (err);
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}
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char buf[64];
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sprintf(buf, "/tmp/zts-zed_fd_spill-logdir/%d", getppid());
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int fd = creat(buf, 0644);
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if (fd == -1) {
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(void) fprintf(stderr, "creat(%s) failed: %s\n", buf,
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strerror(errno));
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exit(EXIT_FAILURE);
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}
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if (dup2(fd, STDOUT_FILENO) == -1) {
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close(fd);
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(void) fprintf(stderr, "dup2(%s, STDOUT_FILENO) failed: %s\n",
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buf, strerror(errno));
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exit(EXIT_FAILURE);
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}
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snprintf(buf, sizeof (buf), "/proc/%d/fd", getppid());
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execlp("ls", "ls", buf, NULL);
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_exit(127);
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}
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