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-rw-r--r--ChangeLog5
-rw-r--r--posix/Makefile2
-rw-r--r--posix/tst-vfork1.c150
3 files changed, 156 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index c3735beb08..66105f207c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2004-03-09 Ulrich Drepper <drepper@redhat.com>
+
+ * posix/Makefile (tests): Add tst-vfork1.
+ * posix/tst-vfork1.c: New file.
+
2004-03-08 Ulrich Drepper <drepper@redhat.com>
* sysdeps/i386/dl-machine.h: Define ARCH_FIXUP_ATTRIBUTE and use
diff --git a/posix/Makefile b/posix/Makefile
index 815c15ab24..63f89ed0c0 100644
--- a/posix/Makefile
+++ b/posix/Makefile
@@ -81,7 +81,7 @@ tests := tstgetopt testfnm runtests runptests \
bug-regex17 bug-regex18 bug-regex19 bug-regex20 \
bug-regex21 bug-regex22 bug-regex23 tst-nice tst-nanosleep \
transbug tst-rxspencer tst-pcre tst-boost \
- bug-ga1
+ bug-ga1 tst-vfork1
xtests := bug-ga2
ifeq (yes,$(build-shared))
test-srcs := globtest
diff --git a/posix/tst-vfork1.c b/posix/tst-vfork1.c
new file mode 100644
index 0000000000..4c2d131a32
--- /dev/null
+++ b/posix/tst-vfork1.c
@@ -0,0 +1,150 @@
+/* Test for chmod functions.
+ Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+/* This test relies on non-POSIX functionality since the child
+ processes call write. */
+static int
+do_test (void)
+{
+ int result = 0;
+ int fd[2];
+
+ if (pipe (fd) == -1)
+ {
+ puts ("pipe failed");
+ return 1;
+ }
+
+ /* First vfork() without previous getpid(). */
+ pid_t p1;
+ if ((p1 = vfork ()) == 0)
+ {
+ pid_t p = getpid ();
+ _exit (TEMP_FAILURE_RETRY (write (fd[1], &p, sizeof (p))) != sizeof (p));
+ }
+ else if (p1 == -1)
+ {
+ puts ("1st vfork failed");
+ result = 1;
+ }
+
+ pid_t p2 = 0;
+ if (TEMP_FAILURE_RETRY (read (fd[0], &p2, sizeof (pid_t))) != sizeof (pid_t))
+ {
+ puts ("1st read failed");
+ result = 1;
+ }
+ int r;
+ if (TEMP_FAILURE_RETRY (waitpid (p1, &r, 0)) != p1)
+ {
+ puts ("1st waitpid failed");
+ result = 1;
+ }
+ else if (r != 0)
+ {
+ puts ("write in 1st child failed");
+ result = 1;
+ }
+
+ /* Main process' ID. */
+ pid_t p0 = getpid ();
+
+ /* vfork() again, but after a getpid() in the main process. */
+ pid_t p3;
+ if ((p3 = vfork ()) == 0)
+ {
+ pid_t p = getpid ();
+ _exit (TEMP_FAILURE_RETRY (write (fd[1], &p, sizeof (p))) != sizeof (p));
+ }
+ else if (p1 == -1)
+ {
+ puts ("2nd vfork failed");
+ result = 1;
+ }
+
+ pid_t p4;
+ if (TEMP_FAILURE_RETRY (read (fd[0], &p4, sizeof (pid_t))) != sizeof (pid_t))
+ {
+ puts ("2nd read failed");
+ result = 1;
+ }
+ if (TEMP_FAILURE_RETRY (waitpid (p3, &r, 0)) != p3)
+ {
+ puts ("2nd waitpid failed");
+ result = 1;
+ }
+ else if (r != 0)
+ {
+ puts ("write in 2nd child failed");
+ result = 1;
+ }
+
+ /* And getpid in the main process again. */
+ pid_t p5 = getpid ();
+
+ /* Analysis of the results. */
+ if (p0 != p5)
+ {
+ printf ("p0(%ld) != p5(%ld)\n", (long int) p0, (long int) p5);
+ result = 1;
+ }
+
+ if (p0 == p1)
+ {
+ printf ("p0(%ld) == p1(%ld)\n", (long int) p0, (long int) p1);
+ result = 1;
+ }
+
+ if (p1 != p2)
+ {
+ printf ("p1(%ld) != p2(%ld)\n", (long int) p1, (long int) p2);
+ result = 1;
+ }
+
+ if (p0 == p3)
+ {
+ printf ("p0(%ld) == p3(%ld)\n", (long int) p0, (long int) p3);
+ result = 1;
+ }
+
+ if (p3 != p4)
+ {
+ printf ("p3(%ld) != p4(%ld)\n", (long int) p3, (long int) p4);
+ result = 1;
+ }
+
+ close (fd[0]);
+ close (fd[1]);
+
+ if (result == 0)
+ puts ("All OK");
+
+ return result;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"