Update copyright headers

[strace] / tests / fork-f.c

diff --git a/tests/fork-f.c b/tests/fork-f.c
index a1a45b9eb62b41d6c75e86b3cd5405a6187ba942..0e71c50038e11e48d96b6f6c322a44e406710d27 100644 (file)
--- a/tests/fork-f.c
+++ b/tests/fork-f.c
@@ -1,75 +1,52 @@
 /*
- * Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
+ * Copyright (c) 2015-2018 Dmitry V. Levin <ldv@altlinux.org>
  * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
+#include "tests.h"
+#include <assert.h>
 #include <stdio.h>
 #include <string.h>
 #include <unistd.h>
 #include <sys/wait.h>
 
-static int
-logit(const char *const str)
+static inline int
+logit_(const char *const str)
 {
-       return pwrite(-1, str, strlen(str), 0) >= 0;
+       return !chdir(str);
 }
 
-int main(int ac, char **av, char **ep)
+#define prefix "fork-f."
+#define logit(arg) logit_(prefix arg)
+
+int main(int ac, char **av)
 {
        if (ac < 1)
                return 1;
        if (ac > 1)
-               return logit(av[1]);
+               return logit("exec");
 
        logit("start");
 
-       int fds[2];
+       int child_wait_fds[2];
        (void) close(0);
-       if (pipe(fds)) {
-               perror("pipe");
-               return 77;
-       }
+       if (pipe(child_wait_fds))
+               perror_msg_and_fail("pipe");
 
        pid_t pid = fork();
 
-       if (pid < 0) {
-               perror("fork");
-               return 77;
-       }
+       if (pid < 0)
+               perror_msg_and_fail("fork");
 
        if (!pid) {
-               close(fds[1]);
+               close(child_wait_fds[1]);
 
-               if (read(0, fds, sizeof(int)))
+               if (read(0, child_wait_fds, sizeof(int)))
                        _exit(2);
 
-               char *const args[] = { av[0], (char *) "exec", NULL };
+               char *const args[] = { av[0], (char *) "", NULL };
                if (logit("child") || execve(args[0], args, args + 1))
                        _exit(2);
        }
@@ -77,27 +54,24 @@ int main(int ac, char **av, char **ep)
        close(0);
 
        logit("parent");
-       close(fds[1]);
+       close(child_wait_fds[1]);
 
        int status;
-       if (wait(&status) != pid) {
-               perror("wait");
-               return 77;
-       }
-       if (status) {
-               fprintf(stderr, "status = %d\n", status);
-               return 77;
-       }
+       assert(wait(&status) == pid);
+       assert(status == 0);
 
+       pid_t ppid = getpid();
        logit("finish");
 
-       pid_t ppid = getpid();
-       close(-1);
-       printf("%-5d pwrite64(-1, \"start\", 5, 0) = -1 EBADF (%m)\n"
-              "%-5d pwrite64(-1, \"parent\", 6, 0) = -1 EBADF (%m)\n"
-              "%-5d pwrite64(-1, \"child\", 5, 0) = -1 EBADF (%m)\n"
-              "%-5d pwrite64(-1, \"exec\", 4, 0) = -1 EBADF (%m)\n"
-              "%-5d pwrite64(-1, \"finish\", 6, 0) = -1 EBADF (%m)\n",
-              ppid, ppid, pid, pid, ppid);
+       printf("%-5d chdir(\"%sstart\") = -1 ENOENT (%m)\n"
+              "%-5d chdir(\"%sparent\") = -1 ENOENT (%m)\n"
+              "%-5d chdir(\"%schild\") = -1 ENOENT (%m)\n"
+              "%-5d chdir(\"%sexec\") = -1 ENOENT (%m)\n"
+              "%-5d chdir(\"%sfinish\") = -1 ENOENT (%m)\n",
+              ppid, prefix,
+              ppid, prefix,
+              pid, prefix,
+              pid, prefix,
+              ppid, prefix);
        return 0;
 }