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authorSiddhesh Poyarekar <siddhesh@redhat.com>2013-03-07 12:15:08 +0530
committerSiddhesh Poyarekar <siddhesh@redhat.com>2013-03-07 12:15:08 +0530
commitadbb8027be47b3295367019b2f45863ea3d6c727 (patch)
treecf38120198fca9e5ac227d8404e97fe38bcd6b30 /posix
parent87bd9bc4bd2a49a441bb9ba744c9ddb0c9434823 (diff)
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Remove PIPE_BUF Linux-specific code
Fixes BZ #12723 The variable pipe buffer size does nothing to the value of PIPE_BUF, since the number of bytes that are atomically written is still PIPE_BUF on Linux.
Diffstat (limited to 'posix')
-rw-r--r--posix/Makefile3
-rw-r--r--posix/tst-pathconf.c176
2 files changed, 178 insertions, 1 deletions
diff --git a/posix/Makefile b/posix/Makefile
index 2cacd21..658c47e 100644
--- a/posix/Makefile
+++ b/posix/Makefile
@@ -86,7 +86,8 @@ tests := tstgetopt testfnm runtests runptests \
tst-rfc3484-3 \
tst-getaddrinfo3 tst-fnmatch2 tst-cpucount tst-cpuset \
bug-getopt1 bug-getopt2 bug-getopt3 bug-getopt4 \
- bug-getopt5 tst-getopt_long1 bug-regex34 bug-regex35
+ bug-getopt5 tst-getopt_long1 bug-regex34 bug-regex35 \
+ tst-pathconf
xtests := bug-ga2
ifeq (yes,$(build-shared))
test-srcs := globtest
diff --git a/posix/tst-pathconf.c b/posix/tst-pathconf.c
new file mode 100644
index 0000000..7627a24
--- /dev/null
+++ b/posix/tst-pathconf.c
@@ -0,0 +1,176 @@
+/* Test that values of pathconf and fpathconf are consistent for a file.
+ Copyright (C) 2013 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+static void prepare (void);
+#define PREPARE(argc, argv) prepare ()
+
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+
+#include "../test-skeleton.c"
+
+static int dir_fd;
+static char *dirbuf;
+
+static void
+prepare (void)
+{
+ size_t test_dir_len = strlen (test_dir);
+ static const char dir_name[] = "/tst-pathconf.XXXXXX";
+
+ size_t dirbuflen = test_dir_len + sizeof (dir_name);
+ dirbuf = malloc (dirbuflen);
+ if (dirbuf == NULL)
+ {
+ puts ("Out of memory");
+ exit (1);
+ }
+
+ snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name);
+ if (mkdtemp (dirbuf) == NULL)
+ {
+ printf ("Cannot create temporary directory: %s\n", strerror (errno));
+ exit (1);
+ }
+
+ add_temp_file (dirbuf);
+
+ dir_fd = open (dirbuf, O_RDONLY);
+ if (dir_fd == -1)
+ {
+ printf ("Cannot open directory: %s\n", strerror (errno));
+ exit (1);
+ }
+}
+
+
+static int
+do_test (void)
+{
+ int ret = 0;
+ static const char *fifo_name = "some-fifo";
+
+ size_t filenamelen = strlen (dirbuf) + strlen (fifo_name) + 2;
+ char *filename = malloc (filenamelen);
+
+ snprintf (filename, filenamelen, "%s/%s", dirbuf, fifo_name);
+
+ /* Create a fifo in the directory. */
+ int e = mkfifo (filename, 0777);
+ if (e == -1)
+ {
+ printf ("fifo creation failed (%s)\n", strerror (errno));
+ ret = 1;
+ goto out_nofifo;
+ }
+
+ long dir_pathconf = pathconf (dirbuf, _PC_PIPE_BUF);
+
+ if (dir_pathconf < 0)
+ {
+ printf ("pathconf on directory failed: %s\n", strerror (errno));
+ ret = 1;
+ goto out_nofifo;
+ }
+
+ long fifo_pathconf = pathconf (filename, _PC_PIPE_BUF);
+
+ if (fifo_pathconf < 0)
+ {
+ printf ("pathconf on file failed: %s\n", strerror (errno));
+ ret = 1;
+ goto out_nofifo;
+ }
+
+ int fifo = open (filename, O_RDONLY | O_NONBLOCK);
+
+ if (fifo < 0)
+ {
+ printf ("fifo open failed (%s)\n", strerror (errno));
+ ret = 1;
+ goto out_nofifo;
+ }
+
+ long dir_fpathconf = fpathconf (dir_fd, _PC_PIPE_BUF);
+
+ if (dir_fpathconf < 0)
+ {
+ printf ("fpathconf on directory failed: %s\n", strerror (errno));
+ ret = 1;
+ goto out;
+ }
+
+ long fifo_fpathconf = fpathconf (fifo, _PC_PIPE_BUF);
+
+ if (fifo_fpathconf < 0)
+ {
+ printf ("fpathconf on file failed: %s\n", strerror (errno));
+ ret = 1;
+ goto out;
+ }
+
+ if (fifo_pathconf != fifo_fpathconf)
+ {
+ printf ("fifo pathconf (%ld) != fifo fpathconf (%ld)\n", fifo_pathconf,
+ fifo_fpathconf);
+ ret = 1;
+ goto out;
+ }
+
+ if (dir_pathconf != fifo_pathconf)
+ {
+ printf ("directory pathconf (%ld) != fifo pathconf (%ld)\n",
+ dir_pathconf, fifo_pathconf);
+ ret = 1;
+ goto out;
+ }
+
+ if (dir_fpathconf != fifo_fpathconf)
+ {
+ printf ("directory fpathconf (%ld) != fifo fpathconf (%ld)\n",
+ dir_fpathconf, fifo_fpathconf);
+ ret = 1;
+ goto out;
+ }
+
+out:
+ close (fifo);
+out_nofifo:
+ close (dir_fd);
+
+ if (unlink (filename) != 0)
+ {
+ printf ("Could not remove fifo (%s)\n", strerror (errno));
+ ret = 1;
+ }
+
+ if (rmdir (dirbuf) != 0)
+ {
+ printf ("Could not remove directory (%s)\n", strerror (errno));
+ ret = 1;
+ }
+
+ return ret;
+}