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61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/* Linux lseek implementation, 64 bits off_t.
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Copyright (C) 2016-2023 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<https://www.gnu.org/licenses/>. */
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#include <unistd.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <sysdep.h>
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#include <errno.h>
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#include <shlib-compat.h>
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off64_t
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__lseek64 (int fd, off64_t offset, int whence)
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{
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#ifdef __NR_llseek
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# define __NR__llseek __NR_llseek
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#endif
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#ifdef __NR__llseek
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loff_t res;
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int rc = INLINE_SYSCALL_CALL (_llseek, fd,
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(long) (((uint64_t) (offset)) >> 32),
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(long) offset, &res, whence);
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return rc ?: res;
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#else
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return INLINE_SYSCALL_CALL (lseek, fd, offset, whence);
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#endif
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}
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#ifdef __OFF_T_MATCHES_OFF64_T
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weak_alias (__lseek64, lseek)
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weak_alias (__lseek64, __lseek)
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strong_alias (__lseek64, __libc_lseek)
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libc_hidden_def (__lseek)
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#endif
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strong_alias (__lseek64, __libc_lseek64)
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weak_alias (__lseek64, lseek64)
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#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_28)
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compat_symbol (libc, __lseek64, llseek, GLIBC_2_0);
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#endif
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#if !IS_IN(rtld) && OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_1, GLIBC_2_2)
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compat_symbol (libc, __lseek64, lseek64, GLIBC_2_2);
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#endif
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