diff options
Diffstat (limited to 'sysdeps/unix/sysv/solaris2/kopensolaris-gnu/fcntl.c')
-rw-r--r-- | sysdeps/unix/sysv/solaris2/kopensolaris-gnu/fcntl.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/fcntl.c b/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/fcntl.c new file mode 100644 index 0000000000..ef8a0b968f --- /dev/null +++ b/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/fcntl.c @@ -0,0 +1,79 @@ +/* Copyright (C) 2008 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by David Bartley <dtbartle@csclub.uwaterloo.ca>, 2008. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep-cancel.h> +#include <inline-syscall.h> +#include <errno.h> +#include <fcntl.h> +#include <stdarg.h> +#include <sys/ioctl.h> + +DECLARE_INLINE_SYSCALL (int, fcntl, int fd, int cmd, ...); + +int +__fcntl_not_cancel (int fd, int cmd, ...) +{ + int res; + va_list ap; + void *arg; + + va_start (ap, cmd); + arg = va_arg (ap, void *); + va_end (ap); + + /* we need to handle some cmd's here since the kernel doesn't */ + switch(cmd) + { + case F_GETOWN: + if(ioctl (fd, FIOGETOWN, &res) == -1) + return -1; + return res; + case F_SETOWN: + return ioctl (fd, FIOSETOWN, &arg); + default: + return INLINE_SYSCALL (fcntl, 3, fd, cmd, arg); + } +} + +int +__libc_fcntl (int fd, int cmd, ...) +{ + va_list ap; + void *arg; + + va_start (ap, cmd); + arg = va_arg (ap, void *); + va_end (ap); + + if (SINGLE_THREAD_P || cmd != F_SETLKW) + return __fcntl_not_cancel (fd, cmd, arg); + + int oldtype = LIBC_CANCEL_ASYNC (); + + int res = __fcntl_not_cancel (fd, cmd, arg); + + LIBC_CANCEL_RESET (oldtype); + + return res; +} + +libc_hidden_def (__libc_fcntl) +weak_alias (__libc_fcntl, __fcntl) +libc_hidden_weak (__fcntl) +weak_alias (__libc_fcntl, fcntl) |