/* fstat() replacement. Copyright (C) 2011-2020 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/>. */ /* 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> #undef __need_system_sys_stat_h #if defined _WIN32 && ! defined __CYGWIN__ # define WINDOWS_NATIVE #endif #if !defined WINDOWS_NATIVE static int orig_fstat (int fd, struct stat *buf) { return fstat (fd, buf); } #endif /* Specification. */ #ifdef __osf__ /* 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" #else # include <sys/stat.h> #endif #include "stat-time.h" #include <errno.h> #include <unistd.h> #ifdef WINDOWS_NATIVE # define WIN32_LEAN_AND_MEAN # include <windows.h> # if GNULIB_MSVC_NOTHROW # include "msvc-nothrow.h" # else # include <io.h> # endif # include "stat-w32.h" #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 #ifdef WINDOWS_NATIVE /* Fill the fields ourselves, because the original fstat function returns values for st_atime, st_mtime, st_ctime that depend on the current time zone. See <https://lists.gnu.org/r/bug-gnulib/2017-04/msg00134.html> */ HANDLE h = (HANDLE) _get_osfhandle (fd); if (h == INVALID_HANDLE_VALUE) { errno = EBADF; return -1; } return _gl_fstat_by_handle (h, NULL, buf); #else return stat_time_normalize (orig_fstat (fd, buf), buf); #endif } |