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authorUlrich Drepper <drepper@redhat.com>1998-11-16 12:02:08 +0000
committerUlrich Drepper <drepper@redhat.com>1998-11-16 12:02:08 +0000
commit8b7fb5883bf50ab866f785b9cb36c8167f7a3286 (patch)
tree4f4b8ccad0fec4529b7876a9a5c646f9b28691d1 /sysdeps/unix/opendir.c
parentbe1d9d95b122ee20f8217e9263e088dec652543a (diff)
downloadglibc-8b7fb5883bf50ab866f785b9cb36c8167f7a3286.tar.gz
Update.
1998-11-16 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/opendir.c: Use o_directory_works differently. Treat zero value as uninitialized so that variable can go into .bss. * dirent/opendir-tst1.c: Print error strings to stdout. * sysdeps/unix/sysv/linux/mmap64.c: New file. Empty. * sysdeps/unix/sysv/linux/syscalls.list: Add mmap with mmap64 alias. * sysdeps/unix/sysv/linux/arm/mmap.S: Add mmap64 alias. * sysdeps/unix/sysv/linux/i386/mmap.S: Likewise. * sysdeps/unix/sysv/linux/m68k/mmap.S: Likewise. 1998-11-16 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * time/tzfile.c (__tzfile_read): Check that types[i].isdst is in range. 1998-11-16 Ulrich Drepper <drepper@cygnus.com> * libio/bits/stdio.h (fread_unlocked): Do handle zero size and number. (fwrite_unlocked): Likewise. 1998-11-16 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * libio/bits/stdio.h (fread_unlocked): Don't evaluate non-constant twice. Don't bother handling zero size. (frwite_unlocked): Likewise. 1998-11-15 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * configure.in: Fix regex for makeinfo version string. 1998-11-15 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * sunrpc/rpc_sample.c (write_sample_server): Avoid -Wparentheses warning. * sunrpc/rpc_svcout.c (write_program): Likewise. 1998-11-15 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * time/Makefile (CFLAGS-test_time.c): Add -Wno-format. 1998-11-16 Ulrich Drepper <drepper@cygnus.com * misc/sys/mman.h: Pretty print prototypes. 1998-11-15 Ulrich Drepper <drepper@cygnus.com * misc/error.c (error): Don't use result of strerror_r call directly since at least DEC Unix has a wrong return type. Patch by Johan Danielsson <joda@pdc.kth.se>. 1998-11-16 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
Diffstat (limited to 'sysdeps/unix/opendir.c')
-rw-r--r--sysdeps/unix/opendir.c60
1 files changed, 30 insertions, 30 deletions
diff --git a/sysdeps/unix/opendir.c b/sysdeps/unix/opendir.c
index 3cbd6628a3..20b7b4ef98 100644
--- a/sysdeps/unix/opendir.c
+++ b/sysdeps/unix/opendir.c
@@ -29,37 +29,37 @@
#include <dirstream.h>
-/* opendir() must not accidentally open something other than a directory.
- Some OS's have kernel support for that, some don't. In the worst
- case we have to stat() before the open() AND fstat() after.
-
- We have to test at runtime for kernel support since libc may have
- been compiled with different headers to the kernel it's running on.
- This test can't be done reliably in the general case. We'll use
- /dev/null, which if it's not a device lots of stuff will break, as
- a guinea pig. It may be missing in chroot environments, so we
- make sure to fail safe. */
+/* opendir() must not accidentally open something other than a directory.
+ Some OS's have kernel support for that, some don't. In the worst
+ case we have to stat() before the open() AND fstat() after.
+
+ We have to test at runtime for kernel support since libc may have
+ been compiled with different headers to the kernel it's running on.
+ This test can't be done reliably in the general case. We'll use
+ /dev/null, which if it's not a device lots of stuff will break, as
+ a guinea pig. It may be missing in chroot environments, so we
+ make sure to fail safe. */
#ifdef O_DIRECTORY
-static int o_directory_works = -1;
+static int o_directory_works;
static void
-tryopen_o_directory (void)
-{
- int serrno = errno;
- int x = __open ("/dev/null", O_RDONLY|O_NDELAY|O_DIRECTORY);
-
- if (x >= 0)
- {
- __close (x);
- o_directory_works = 0;
- }
- else if (errno != ENOTDIR)
- o_directory_works = 0;
- else
- o_directory_works = 1;
-
- __set_errno (serrno);
-}
+tryopen_o_directory (void)
+{
+ int serrno = errno;
+ int x = __open ("/dev/null", O_RDONLY|O_NDELAY|O_DIRECTORY);
+
+ if (x >= 0)
+ {
+ __close (x);
+ o_directory_works = -1;
+ }
+ else if (errno != ENOTDIR)
+ o_directory_works = -1;
+ else
+ o_directory_works = 1;
+
+ __set_errno (serrno);
+}
# define EXTRA_FLAGS O_DIRECTORY
#else
# define EXTRA_FLAGS 0
@@ -86,11 +86,11 @@ __opendir (const char *name)
#ifdef O_DIRECTORY
/* Test whether O_DIRECTORY works. */
- if (o_directory_works == -1)
+ if (o_directory_works == 0)
tryopen_o_directory ();
/* We can skip the expensive `stat' call if O_DIRECTORY works. */
- if (o_directory_works == 0)
+ if (o_directory_works < 0)
#endif
{
/* We first have to check whether the name is for a directory. We