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/* * __syscall_fcntl() for uClibc * * Copyright (C) 2006 Steven J. Hill <sjhill@realitydiluted.com> * 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 <stdarg.h> #include <cancel.h> /* Must come before <fcntl.h>. */ #include <fcntl.h> #include <bits/wordsize.h> int __NC(fcntl)(int fd, int cmd, long arg) { #if __WORDSIZE == 32 if (cmd == F_GETLK64 || cmd == F_SETLK64 || cmd == F_SETLKW64) { # if defined __NR_fcntl64 || !defined __NR_fcntl return INLINE_SYSCALL(fcntl64, 3, fd, cmd, arg); # else __set_errno(ENOSYS); return -1; # endif } #endif #if defined __NR_fcntl return INLINE_SYSCALL(fcntl, 3, fd, cmd, arg); #else __set_errno(ENOSYS); return -1; #endif } int fcntl(int fd, int cmd, ...) { va_list ap; long arg; #ifdef __NEW_THREADS int oldtype, result; #endif va_start (ap, cmd); arg = va_arg (ap, long); va_end (ap); if (SINGLE_THREAD_P || (cmd != F_SETLKW && cmd != F_SETLKW64)) #if defined __NR_fcntl return __NC(fcntl)(fd, cmd, arg); #else return INLINE_SYSCALL(fcntl64, 3, fd, cmd, arg); #endif #ifdef __NEW_THREADS oldtype = LIBC_CANCEL_ASYNC (); #if defined __NR_fcntl result = __NC(fcntl)(fd, cmd, arg); #else result = INLINE_SYSCALL(fcntl64, 3, fd, cmd, arg); #endif LIBC_CANCEL_RESET (oldtype); return result; #endif } lt_strong_alias(fcntl) lt_libc_hidden(fcntl) #if !defined __NR_fcntl64 && __WORDSIZE == 32 strong_alias_untyped(fcntl,fcntl64) lt_strong_alias(fcntl64) lt_libc_hidden(fcntl64) #endif |