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- /* vi: set sw=4 ts=4: */
- /*
- * lseek() for uClibc
- *
- * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
- *
- * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
- */
- #include <sys/syscall.h>
- #include <unistd.h>
- #include <cancel.h>
- #ifdef __NR_lseek
- # define __NR___lseek_nocancel __NR_lseek
- _syscall3(off_t, __NC(lseek), int, fd, off_t, offset, int, whence)
- #else
- # include <errno.h>
- off_t __NC(lseek)(int fd, off_t offset attribute_unused, int whence)
- {
- if (fd < 0) {
- __set_errno(EBADF);
- return -1;
- }
- switch(whence) {
- case SEEK_SET:
- case SEEK_CUR:
- case SEEK_END:
- break;
- default:
- __set_errno(EINVAL);
- return -1;
- }
- __set_errno(ENOSYS);
- return -1;
- }
- #endif
- CANCELLABLE_SYSCALL(off_t, lseek, (int fd, off_t offset, int whence), (fd, offset, whence))
- lt_libc_hidden(lseek)
- #if defined __UCLIBC_HAS_LFS__ && (__WORDSIZE == 64 || (!defined __NR__llseek && !defined __NR_llseek))
- strong_alias_untyped(__NC(lseek),__NC(lseek64))
- strong_alias_untyped(lseek,lseek64)
- lt_strong_alias(lseek64)
- lt_libc_hidden(lseek64)
- #endif
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