From 62af1d0b2a31185dc8acaf3fe8fc3149414277bd Mon Sep 17 00:00:00 2001 From: RincewindsHat <12514511+RincewindsHat@users.noreply.github.com> Date: Sat, 17 Sep 2022 02:56:19 +0200 Subject: gnulib changes --- gl/lseek.c | 89 -------------------------------------------------------------- 1 file changed, 89 deletions(-) delete mode 100644 gl/lseek.c (limited to 'gl/lseek.c') diff --git a/gl/lseek.c b/gl/lseek.c deleted file mode 100644 index 1a9c49bd..00000000 --- a/gl/lseek.c +++ /dev/null @@ -1,89 +0,0 @@ -/* An lseek() function that detects pipes. - Copyright (C) 2007, 2009-2022 Free Software Foundation, Inc. - - This file 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. - - This file 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 this program. If not, see . */ - -#include - -/* Specification. */ -#include - -#if defined _WIN32 && ! defined __CYGWIN__ -/* Windows platforms. */ -/* Get GetFileType. */ -# include -/* Get _get_osfhandle. */ -# if GNULIB_MSVC_NOTHROW -# include "msvc-nothrow.h" -# else -# include -# endif -#else -# include -#endif -#include - -#undef lseek - -off_t -rpl_lseek (int fd, off_t offset, int whence) -{ -#if defined _WIN32 && ! defined __CYGWIN__ - /* mingw lseek mistakenly succeeds on pipes, sockets, and terminals. */ - HANDLE h = (HANDLE) _get_osfhandle (fd); - if (h == INVALID_HANDLE_VALUE) - { - errno = EBADF; - return -1; - } - if (GetFileType (h) != FILE_TYPE_DISK) - { - errno = ESPIPE; - return -1; - } -#elif defined __APPLE__ && defined __MACH__ && defined SEEK_DATA - if (whence == SEEK_DATA) - { - /* If OFFSET points to data, macOS lseek+SEEK_DATA returns the - start S of the first data region that begins *after* OFFSET, - where the region from OFFSET to S consists of possibly-empty - data followed by a possibly-empty hole. To work around this - portability glitch, check whether OFFSET is within data by - using lseek+SEEK_HOLE, and if so return to OFFSET by using - lseek+SEEK_SET. Also, contrary to the macOS documentation, - lseek+SEEK_HOLE can fail with ENXIO if there are no holes on - or after OFFSET. What a mess! */ - off_t next_hole = lseek (fd, offset, SEEK_HOLE); - if (next_hole < 0) - return errno == ENXIO ? offset : next_hole; - if (next_hole != offset) - whence = SEEK_SET; - } -#else - /* BeOS lseek mistakenly succeeds on pipes... */ - struct stat statbuf; - if (fstat (fd, &statbuf) < 0) - return -1; - if (!S_ISREG (statbuf.st_mode)) - { - errno = ESPIPE; - return -1; - } -#endif -#if _GL_WINDOWS_64_BIT_OFF_T || (defined __MINGW32__ && defined _FILE_OFFSET_BITS && (_FILE_OFFSET_BITS == 64)) - return _lseeki64 (fd, offset, whence); -#else - return lseek (fd, offset, whence); -#endif -} -- cgit v1.2.3-74-g34f1