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/* vi: set sw=4 ts=4: */
/*
* sigprocmask() 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 <signal.h>
#undef sigprocmask
libc_hidden_proto(sigprocmask)
#ifdef __NR_rt_sigprocmask
# define __NR___rt_sigprocmask __NR_rt_sigprocmask
static inline
_syscall4(int, __rt_sigprocmask, int, how, const sigset_t *, set,
sigset_t *, oldset, size_t, size);
int sigprocmask(int how, const sigset_t * set, sigset_t * oldset)
{
if (set &&
# if (SIG_BLOCK == 0) && (SIG_UNBLOCK == 1) && (SIG_SETMASK == 2)
(((unsigned int) how) > 2)
#elif (SIG_BLOCK == 1) && (SIG_UNBLOCK == 2) && (SIG_SETMASK == 3)
(((unsigned int)(how-1)) > 2)
# else
# warning "compile time assumption violated.. slow path..."
((how != SIG_BLOCK) && (how != SIG_UNBLOCK)
&& (how != SIG_SETMASK))
# endif
) {
__set_errno(EINVAL);
return -1;
}
return __rt_sigprocmask(how, set, oldset, _NSIG / 8);
}
#else
# define __NR___syscall_sigprocmask __NR_sigprocmask
static inline
_syscall3(int, __syscall_sigprocmask, int, how, const sigset_t *, set,
sigset_t *, oldset);
int sigprocmask(int how, const sigset_t * set, sigset_t * oldset)
{
if (set &&
# if (SIG_BLOCK == 0) && (SIG_UNBLOCK == 1) && (SIG_SETMASK == 2)
(((unsigned int) how) > 2)
#elif (SIG_BLOCK == 1) && (SIG_UNBLOCK == 2) && (SIG_SETMASK == 3)
(((unsigned int)(how-1)) > 2)
# else
# warning "compile time assumption violated.. slow path..."
((how != SIG_BLOCK) && (how != SIG_UNBLOCK)
&& (how != SIG_SETMASK))
# endif
) {
__set_errno(EINVAL);
return -1;
}
return (__syscall_sigprocmask(how, set, oldset));
}
#endif
libc_hidden_def(sigprocmask)
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