| /* fstat() replacement. |
| Copyright (C) 2011-2016 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 <http://www.gnu.org/licenses/>. */ |
| |
| /* If the user's config.h happens to include <sys/stat.h>, let it include only |
| the system's <sys/stat.h> here, so that orig_fstat doesn't recurse to |
| rpl_fstat. */ |
| #define __need_system_sys_stat_h |
| #include <config.h> |
| |
| /* Get the original definition of fstat. It might be defined as a macro. */ |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #if _GL_WINDOWS_64_BIT_ST_SIZE |
| # undef stat /* avoid warning on mingw64 with _FILE_OFFSET_BITS=64 */ |
| # define stat _stati64 |
| # undef fstat /* avoid warning on mingw64 with _FILE_OFFSET_BITS=64 */ |
| # define fstat _fstati64 |
| #endif |
| #undef __need_system_sys_stat_h |
| |
| static int |
| orig_fstat (int fd, struct stat *buf) |
| { |
| return fstat (fd, buf); |
| } |
| |
| /* Specification. */ |
| /* Write "sys/stat.h" here, not <sys/stat.h>, otherwise OSF/1 5.1 DTK cc |
| eliminates this include because of the preliminary #include <sys/stat.h> |
| above. */ |
| #include "sys/stat.h" |
| |
| #include <errno.h> |
| #include <unistd.h> |
| |
| #if HAVE_MSVC_INVALID_PARAMETER_HANDLER |
| # include "msvc-inval.h" |
| #endif |
| |
| #if HAVE_MSVC_INVALID_PARAMETER_HANDLER |
| static int |
| fstat_nothrow (int fd, struct stat *buf) |
| { |
| int result; |
| |
| TRY_MSVC_INVAL |
| { |
| result = orig_fstat (fd, buf); |
| } |
| CATCH_MSVC_INVAL |
| { |
| result = -1; |
| errno = EBADF; |
| } |
| DONE_MSVC_INVAL; |
| |
| return result; |
| } |
| #else |
| # define fstat_nothrow orig_fstat |
| #endif |
| |
| int |
| rpl_fstat (int fd, struct stat *buf) |
| { |
| #if REPLACE_FCHDIR && REPLACE_OPEN_DIRECTORY |
| /* Handle the case when rpl_open() used a dummy file descriptor to work |
| around an open() that can't normally visit directories. */ |
| const char *name = _gl_directory_name (fd); |
| if (name != NULL) |
| return stat (name, buf); |
| #endif |
| |
| return fstat_nothrow (fd, buf); |
| } |