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authorUlrich Drepper <drepper@redhat.com>2002-07-10 23:09:16 +0000
committerUlrich Drepper <drepper@redhat.com>2002-07-10 23:09:16 +0000
commit81c64d407c82933f18dc09de9bf58cc76d6a6148 (patch)
tree25a6b5492c2edae9d761ca208d147d726d516804 /libio/tst-freopen.c
parentf4741da2e730191150e4394237716fb29d61845c (diff)
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Update.
2002-07-10 Ulrich Drepper <drepper@redhat.com> * Versions.def [libpthread]: Add GLIBC_2.2.6. * posix/Versions [libc] (GLIBC_2.2.6): Add __nanosleep. 2002-07-06 Bruno Haible <bruno@clisp.org> * sysdeps/unix/sysv/sysv4/bits/sigset.h (__NSSBITS): Correct value. * sysdeps/unix/sysv/linux/bits/statvfs.h (ST_NODIRATIME): Set to 2048.
Diffstat (limited to 'libio/tst-freopen.c')
-rw-r--r--libio/tst-freopen.c103
1 files changed, 103 insertions, 0 deletions
diff --git a/libio/tst-freopen.c b/libio/tst-freopen.c
new file mode 100644
index 0000000000..20e5f2f874
--- /dev/null
+++ b/libio/tst-freopen.c
@@ -0,0 +1,103 @@
+/* Test freopen with mmap stdio.
+ Copyright (C) 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2002.
+
+ 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+int main (void)
+{
+ char name[] = "/tmp/tst-freopen.XXXXXX";
+ char buf[4096];
+ const char * const test = "Let's test freopen.\n";
+ char temp[strlen (test) + 1];
+ int fd = mkstemp (name);
+ FILE *f;
+
+ if (fd == -1)
+ {
+ printf ("%Zd: cannot open temporary file: %m\n", __LINE__);
+ exit (1);
+ }
+
+ f = fdopen (fd, "w");
+ if (f == NULL)
+ {
+ printf ("%Zd: cannot fdopen temporary file: %m\n", __LINE__);
+ exit (1);
+ }
+
+ fputs (test, f);
+ fclose (f);
+
+ f = fopen (name, "r");
+ if (f == NULL)
+ {
+ printf ("%Zd: cannot fopen temporary file: %m\n", __LINE__);
+ exit (1);
+ }
+
+ if (fread (temp, 1, strlen (test), f) != strlen (test))
+ {
+ printf ("%Zd: couldn't read the file back: %m\n", __LINE__);
+ exit (1);
+ }
+ temp [strlen (test)] = '\0';
+
+ if (strcmp (test, temp))
+ {
+ printf ("%Zd: read different string than was written:\n%s%s",
+ __LINE__, test, temp);
+ exit (1);
+ }
+
+ f = freopen (name, "r+", f);
+ if (f == NULL)
+ {
+ printf ("%Zd: cannot freopen temporary file: %m\n", __LINE__);
+ exit (1);
+ }
+
+ if (fseek (f, 0, SEEK_SET) != 0)
+ {
+ printf ("%Zd: couldn't fseek to start: %m\n", __LINE__);
+ exit (1);
+ }
+
+ if (fread (temp, 1, strlen (test), f) != strlen (test))
+ {
+ printf ("%Zd: couldn't read the file back: %m\n", __LINE__);
+ exit (1);
+ }
+ temp [strlen (test)] = '\0';
+
+ if (strcmp (test, temp))
+ {
+ printf ("%Zd: read different string than was written:\n%s%s",
+ __LINE__, test, temp);
+ exit (1);
+ }
+
+ fclose (f);
+
+ unlink (name);
+ exit (0);
+}