58 lines
1.1 KiB
C
58 lines
1.1 KiB
C
/*
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* This file is part of attach-p-cmd strace test.
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*
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* Copyright (c) 2016-2018 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "tests.h"
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#include <errno.h>
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#include <stdio.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "attach-p-cmd.h"
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static void
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write_pidfile(const pid_t pid)
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{
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FILE *fp = fopen(pidfile, "w");
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if (!fp)
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perror_msg_and_fail("fopen: %s", pidfile);
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if (fprintf(fp, "%d", pid) < 0)
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perror_msg_and_fail("fprintf: %s", pidfile);
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if (fclose(fp))
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perror_msg_and_fail("fclose: %s", pidfile);
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}
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static void
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wait_for_peer_invocation(void)
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{
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/* wait for the lock directory to be created by peer */
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while (rmdir(lockdir)) {
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if (ENOENT != errno)
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perror_msg_and_fail("rmdir: %s", lockdir);
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}
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}
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int
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main(void)
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{
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const pid_t pid = getpid();
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write_pidfile(pid);
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wait_for_peer_invocation();
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static const char dir[] = "attach-p-cmd.test cmd";
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int rc = chdir(dir);
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printf("%-5d chdir(\"%s\") = %s\n"
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"%-5d +++ exited with 0 +++\n",
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pid, dir, sprintrc(rc), pid);
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return 0;
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}
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