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posix/pread.c
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Paul Eggert
Update copyright dates with scripts/update-copyrights
02 янв 2026, 00:42
02 янв 2026, 00:42
66f3e92
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/* Copyright (C) 1991-2026 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library 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. The GNU C Library 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 the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ #include <errno.h> #include <unistd.h> /* Read NBYTES into BUF from FD at the given position OFFSET without changing the file pointer. Return the number read or -1. */ ssize_t __libc_pread (int fd, void *buf, size_t nbytes, off_t offset) { if (nbytes == 0) return 0; if (fd < 0) { __set_errno (EBADF); return -1; } if (buf == NULL || offset < 0) { __set_errno (EINVAL); return -1; } __set_errno (ENOSYS); return -1; } strong_alias (__libc_pread, __pread) weak_alias (__libc_pread, pread) stub_warning (pread)