diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/fcntl.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/fcntl.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/fcntl.c b/sysdeps/unix/sysv/linux/i386/fcntl.c index b27373d24b..5544d6e0d9 100644 --- a/sysdeps/unix/sysv/linux/i386/fcntl.c +++ b/sysdeps/unix/sysv/linux/i386/fcntl.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2000,2002,2003,2004,2006 Free Software Foundation, Inc. +/* Copyright (C) 2000,2002,2003,2004,2006,2009 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 @@ -30,6 +30,13 @@ int __have_no_fcntl64; #endif +#ifdef __ASSUME_F_GETOWN_EX +# define miss_F_GETOWN_EX 0 +#else +static int miss_F_GETOWN_EX; +#endif + + #if defined NO_CANCELLATION && __ASSUME_FCNTL64 == 0 # define __fcntl_nocancel __libc_fcntl #endif @@ -119,6 +126,26 @@ __fcntl_nocancel (int fd, int cmd, ...) assert (F_SETLK - F_SETLKW == F_SETLK64 - F_SETLKW64); return INLINE_SYSCALL (fcntl, 3, fd, cmd + F_SETLK - F_SETLK64, &fl); } + case F_GETOWN: + if (! miss_F_GETOWN_EX) + { + INTERNAL_SYSCALL_DECL (err); + struct f_owner_ex fex; + int res = INTERNAL_SYSCALL (fcntl, err, 3, fd, F_GETOWN_EX, &fex); + if (!INTERNAL_SYSCALL_ERROR_P (res, err)) + return fex.type == F_OWNER_GID ? -fex.pid : fex.pid; + +#ifndef __ASSUME_F_GETOWN_EX + if (INTERNAL_SYSCALL_ERRNO (res, err) == EINVAL) + miss_F_GETOWN_EX = 1; + else +#endif + { + __set_errno (INTERNAL_SYSCALL_ERRNO (res, err)); + return -1; + } + } + /* FALLTHROUGH */ default: return INLINE_SYSCALL (fcntl, 3, fd, cmd, arg); } |