binutils-gdb/gnulib/import/opendir.c
Christian Biesinger 698be2d8e5 Update gnulib to current trunk
This fixes two issues on Windows: Update.
https://sourceware.org/pipermail/gdb-patches/2020-June/169978.html

gnulib/ChangeLog:

2020-08-26  Christian Biesinger  <cbiesinger@google.com>
	    Pedro Alves  <palves@redhat.com>
	    Joel Brobecker  <brobecker@adacore.com>

	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* config.in: Regenerate.
	* configure: Regenerate.
	* import/Makefile.am: Update.
	* import/Makefile.in: Regenerate.
	* import/alloca.in.h (if): Update.
	* import/assure.h (affirm): Update.
	* import/at-func.c: Update.
	* import/attribute.h: New file.
	* import/btowc.c: New file.
	* import/canonicalize-lgpl.c: Update.
	* import/count-one-bits.h (COUNT_ONE_BITS_GENERIC): Update.
	(COUNT_ONE_BITS): Update.
	(intrinsic): Update.
	(__popcnt64): Update.
	(popcount_supported): Update.
	* import/ctype.in.h: New file.
	* import/dirent-private.h (WIN32_FIND_DATA): Update.
	* import/dirent.in.h (_GL_ATTRIBUTE_PURE): Update.
	* import/dirname.h: Update.
	* import/dosname.h: Remove.
	* import/error.h (_GL_ATTRIBUTE_FORMAT): Update.
	* import/extra/update-copyright: Update.
	* import/fchdir.c: Update.
	* import/fcntl.in.h (GNULIB_defined_rpl_fcntl): Update.
	(GNULIB_defined_fcntl): Update.
	* import/filename.h (HAS_DEVICE): Update.
	(IS_ABSOLUTE_PATH): Update.
	(IS_PATH_WITH_DIR): Update.
	(FILE_SYSTEM_PREFIX_LEN): Update.
	(_IS_DRIVE_LETTER): Update.
	(FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE): Update.
	(IS_ABSOLUTE_FILE_NAME): Update.
	(IS_RELATIVE_FILE_NAME): Update.
	(IS_FILE_NAME_WITH_DIR): Update.
	* import/filenamecat-lgpl.c (mfile_name_concat): Update.
	* import/fnmatch.c (WIDE_CHAR_SUPPORT): Update.
	(btowc): Update.
	(iswctype): Update.
	(mempcpy): Update.
	(strnlen): Update.
	(towlower): Update.
	(wcscat): Update.
	(wcslen): Update.
	(wctype): Update.
	(wmemchr): Update.
	(wmempcpy): Update.
	(SIZE_MAX): Update.
	(isblank): Update.
	(__libc_use_alloca): Update.
	(alloca): Update.
	(alloca_account): Update.
	(STREQ): Update.
	(CHAR_CLASS_MAX_LENGTH): Update.
	(IS_CHAR_CLASS): Update.
	(ISWCTYPE): Update.
	(if): Update.
	(HANDLE_MULTIBYTE): Update.
	(internal_function): Update.
	(FOLD): Update.
	(CHAR): Update.
	(UCHAR): Update.
	(INT): Update.
	(FCT): Update.
	(EXT): Update.
	(END): Update.
	(L_): Update.
	(BTOWC): Update.
	(STRLEN): Update.
	(STRCAT): Update.
	(MEMPCPY): Update.
	(MEMCHR): Update.
	(WIDE_CHAR_VERSION): Update.
	(STRUCT): Update.
	(FINDIDX): Update.
	(findidx): Update.
	(ALLOCA_LIMIT): Update.
	(SHLIB_COMPAT): Update.
	* import/fnmatch_loop.c (struct STRUCT): Update.
	(FCT): Update.
	(EXT): Update.
	(END): Update.
	(str): Update.
	(NEW_PATTERN): Update.
	* import/getcwd.c: Update.
	* import/getlogin_r.c (GetUserName): Update.
	* import/getprogname.c (getprogname): Update.
	* import/getrandom.c: New file.
	* import/gettimeofday.c: Remove.
	* import/glob.in.h (_Restrict_): Update.
	* import/inttypes.in.h (_GL_FUNCDECL_RPL): Update.
	(_GL_CXXALIAS_RPL): Update.
	(_GL_FUNCDECL_SYS): Update.
	(_GL_CXXALIAS_SYS): Update.
	* import/isblank.c: New file.
	* import/isnanl-nolibm.h (__has_builtin): Update.
	* import/libc-config.h (versioned_symbol): Update.
	(compat_symbol): Update.
	* import/limits.in.h (_GL_ALREADY_INCLUDING_LIMITS_H): Update.
	* import/m4/btowc.m4: New file.
	* import/m4/ctype.m4: New file.
	* import/m4/exponentl.m4: Update.
	* import/m4/fnmatch.m4: Update.
	* import/m4/getrandom.m4: New file.
	* import/m4/glob.m4: Update.
	* import/m4/gnulib-cache.m4: Update.
	* import/m4/gnulib-common.m4: Update.
	* import/m4/gnulib-comp.m4: Update.
	* import/m4/inttypes.m4: Update.
	* import/m4/isblank.m4: New file.
	* import/m4/isnanl.m4: Update.
	* import/m4/largefile.m4: Update.
	* import/m4/mbtowc.m4: New file.
	* import/m4/memmem.m4: Update.
	* import/m4/minmax.m4: New file.
	* import/m4/signal_h.m4: Update.
	* import/m4/stdio_h.m4: Update.
	* import/m4/stdlib_h.m4: Update.
	* import/m4/string_h.m4: Update.
	* import/m4/strnlen.m4: New file.
	* import/m4/sys_random_h.m4: New file.
	* import/m4/sys_socket_h.m4: Update.
	* import/m4/sys_stat_h.m4: Update.
	* import/m4/time_h.m4: Update.
	* import/m4/unistd_h.m4: Update.
	* import/m4/wchar_h.m4: Update.
	* import/m4/wint_t.m4: Update.
	* import/m4/wmemchr.m4: New file.
	* import/m4/wmempcpy.m4: New file.
	* import/math.in.h (__has_builtin): Update.
	* import/mbrtowc.c (FALLTHROUGH): Update.
	* import/mbtowc-impl.h: New file.
	* import/mbtowc.c: New file.
	* import/minmax.h: New file.
	* import/open.c (open): Update.
	* import/openat-proc.c (openat_proc_name): Update.
	* import/openat.c (rpl_openat): Update.
	(openat_needs_fchdir): Update.
	* import/openat.h (FCHOWNAT_INLINE): Update.
	(CHOWNAT_INLINE): Update.
	(FCHMODAT_INLINE): Update.
	(CHMODAT_INLINE): Update.
	* import/opendir.c (WIN32_FIND_DATA): Update.
	(GetFullPathName): Update.
	(FindFirstFile): Update.
	* import/readdir.c (FindNextFile): Update.
	* import/rename.c (MoveFileEx): Update.
	* import/rewinddir.c (FindFirstFile): Update.
	* import/rmdir.c: Update.
	* import/signal.in.h (_GL_FUNCDECL_RPL): Update.
	(_GL_CXXALIAS_RPL): Update.
	(_GL_FUNCDECL_SYS): Update.
	(_GL_CXXALIAS_SYS): Update.
	* import/stat-w32.c (_WIN32_WINNT): Update.
	(LoadLibrary): Update.
	(GetFinalPathNameByHandle): Update.
	(GetProcAddress): Update.
	(DWORD): Update.
	(GetFileInformationByHandleExFunc): Update.
	(GetFinalPathNameByHandleFunc): Update.
	* import/stat.c (WIN32_FIND_DATA): Update.
	(CreateFile): Update.
	(FindFirstFile): Update.
	* import/stdio.in.h (_GL_ATTRIBUTE_FORMAT): Update.
	(_GL_FUNCDECL_RPL): Update.
	(_GL_CXXALIAS_RPL): Update.
	(_GL_FUNCDECL_SYS): Update.
	(_GL_CXXALIAS_SYS): Update.
	(_GL_FUNCDECL_RPL_1): Update.
	(_GL_CXXALIAS_RPL_1): Update.
	(_GL_CXXALIAS_SYS_CAST): Update.
	* import/stdlib.in.h (_GL_ATTRIBUTE_PURE): Update.
	(_GL_FUNCDECL_RPL): Update.
	(_GL_CXXALIAS_RPL): Update.
	(_GL_FUNCDECL_SYS): Update.
	(_GL_CXXALIAS_SYS): Update.
	* import/string.in.h (_GL_ATTRIBUTE_PURE): Update.
	(_GL_WARN_ON_USE): Update.
	(_GL_WARN_ON_USE_CXX): Update.
	(_GL_FUNCDECL_RPL): Update.
	(_GL_CXXALIAS_RPL): Update.
	(_GL_CXXALIAS_SYS): Update.
	(mbstok_r): Update.
	* import/strnlen.c: New file.
	* import/sys_random.in.h: New file.
	* import/sys_socket.in.h (GNULIB_defined_socklen_t): Update.
	(_GL_FUNCDECL_RPL): Update.
	(_GL_CXXALIAS_RPL): Update.
	(_GL_CXXALIAS_SYS_CAST): Update.
	* import/sys_stat.in.h (_GL_FUNCDECL_RPL): Update.
	(_GL_CXXALIAS_RPL): Update.
	(_GL_FUNCDECL_SYS): Update.
	(_GL_CXXALIAS_SYS): Update.
	(lchmod): Update.
	(_GL_CXXALIAS_RPL_1): Update.
	(stat): Update.
	* import/tempname.c (__set_errno): Update.
	(__secure_getenv): Update.
	(__try_tempname): Update.
	(__getpid): Update.
	(__gettimeofday): Update.
	(RANDOM_BITS): Update.
	(uint64_t): Update.
	(RANDOM_VALUE_MAX): Update.
	(BASE_62_DIGITS): Update.
	(BASE_62_POWER): Update.
	(try_tempname_len): Update.
	(try_file): Update.
	(try_dir): Update.
	(try_nocreate): Update.
	(gen_tempname_len): Update.
	(__gen_tempname): Update.
	(try_tempname): Update.
	* import/tempname.h (gen_tempname_len): Update.
	(try_tempname_len): Update.
	* import/time.in.h (_GL_FUNCDECL_RPL): Update.
	(_GL_CXXALIAS_RPL): Update.
	(_GL_CXXALIAS_SYS): Update.
	* import/unistd.in.h (if): Update.
	(_GL_FUNCDECL_SYS): Update.
	(_GL_CXXALIAS_SYS): Update.
	(_GL_CXXALIASWARN): Update.
	(_GL_WARN_ON_USE): Update.
	(_GL_FUNCDECL_RPL): Update.
	(_GL_CXXALIAS_RPL): Update.
	* import/verify.h: Update.
	* import/warn-on-use.h (_GL_WARN_ON_USE_CXX): Update.
	* import/wchar.in.h (_GL_ATTRIBUTE_PURE): Update.
	(_GL_FUNCDECL_RPL): Update.
	(_GL_CXXALIAS_RPL): Update.
	(_GL_FUNCDECL_SYS): Update.
	(_GL_CXXALIAS_SYS): Update.
	(_GL_CXXALIASWARN): Update.
	(_GL_WARN_ON_USE): Update.
	(_GL_CXXALIAS_SYS_CAST2): Update.
	(_GL_CXXALIASWARN1): Update.
	* import/windows-rwlock.c (CreateEvent): Update.
	* import/wmemchr-impl.h: New file.
	* import/wmemchr.c: New file.
	* import/wmempcpy.c: New file.
	* update-gnulib.sh (IMPORTED_GNULIB_MODULES): Add gettimeofday.
	(GNULIB_COMMIT_SHA1): Update gnulib revision.
2020-08-26 15:37:28 -07:00

180 lines
3.9 KiB
C

/* Start reading the entries of a directory.
Copyright (C) 2006-2020 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include <dirent.h>
#include <errno.h>
#include <stddef.h>
#if HAVE_OPENDIR
/* Override opendir(), to keep track of the open file descriptors.
Needed because there is a function dirfd(). */
#else
# include <stdlib.h>
# include "dirent-private.h"
# include "filename.h"
#endif
#if REPLACE_FCHDIR
# include <unistd.h>
#endif
#ifdef __KLIBC__
# include <io.h>
# include <fcntl.h>
#endif
#if defined _WIN32 && ! defined __CYGWIN__
/* Don't assume that UNICODE is not defined. */
# undef WIN32_FIND_DATA
# define WIN32_FIND_DATA WIN32_FIND_DATAA
# undef GetFullPathName
# define GetFullPathName GetFullPathNameA
# undef FindFirstFile
# define FindFirstFile FindFirstFileA
#endif
DIR *
opendir (const char *dir_name)
{
#if HAVE_OPENDIR
# undef opendir
DIR *dirp;
dirp = opendir (dir_name);
if (dirp == NULL)
return NULL;
# ifdef __KLIBC__
{
int fd = open (dir_name, O_RDONLY);
if (fd == -1 || _gl_register_dirp_fd (fd, dirp))
{
int saved_errno = errno;
close (fd);
closedir (dirp);
errno = saved_errno;
return NULL;
}
}
# endif
#else
char dir_name_mask[MAX_PATH + 1 + 1 + 1];
int status;
HANDLE current;
WIN32_FIND_DATA entry;
struct gl_directory *dirp;
if (dir_name[0] == '\0')
{
errno = ENOENT;
return NULL;
}
/* Make the dir_name absolute, so that we continue reading the same
directory if the current directory changed between this opendir()
call and a subsequent rewinddir() call. */
if (!GetFullPathName (dir_name, MAX_PATH, dir_name_mask, NULL))
{
errno = EINVAL;
return NULL;
}
/* Append the mask.
"*" and "*.*" appear to be equivalent. */
{
char *p;
p = dir_name_mask + strlen (dir_name_mask);
if (p > dir_name_mask && !ISSLASH (p[-1]))
*p++ = '\\';
*p++ = '*';
*p = '\0';
}
/* Start searching the directory. */
status = -1;
current = FindFirstFile (dir_name_mask, &entry);
if (current == INVALID_HANDLE_VALUE)
{
switch (GetLastError ())
{
case ERROR_FILE_NOT_FOUND:
status = -2;
break;
case ERROR_PATH_NOT_FOUND:
errno = ENOENT;
return NULL;
case ERROR_DIRECTORY:
errno = ENOTDIR;
return NULL;
case ERROR_ACCESS_DENIED:
errno = EACCES;
return NULL;
default:
errno = EIO;
return NULL;
}
}
/* Allocate the result. */
dirp =
(struct gl_directory *)
malloc (offsetof (struct gl_directory, dir_name_mask[0])
+ strlen (dir_name_mask) + 1);
if (dirp == NULL)
{
if (current != INVALID_HANDLE_VALUE)
FindClose (current);
errno = ENOMEM;
return NULL;
}
dirp->status = status;
dirp->current = current;
if (status == -1)
memcpy (&dirp->entry, &entry, sizeof (WIN32_FIND_DATA));
strcpy (dirp->dir_name_mask, dir_name_mask);
#endif
#if REPLACE_FCHDIR
{
int fd = dirfd (dirp);
if (0 <= fd && _gl_register_fd (fd, dir_name) != fd)
{
int saved_errno = errno;
closedir (dirp);
errno = saved_errno;
return NULL;
}
}
#endif
return dirp;
}