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@(#)posix_spawnattr_setspecialport_np.3
. .Dd August 22, 2007 .Dt POSIX_SPAWNATTR_SETSPECIALPORT_NP 3 .Os "Mac OS X" .Sh NAME .Nm posix_spawnattr_setspecialport_np .Nm posix_spawnattr_setexceptionports_np .Nd set or get the .Em spawn-binpref attribute on a .Em posix_spawnattr_t .Sh SYNOPSIS .Fd #include <spawn.h> .Ft int .Fo posix_spawnattr_setspecialport_np .Fa "posix_spawnattr_t *attr" .Fa "mach_port_t new_port" .Fa "int which" .Fc .Ft int .Fo posix_spawnattr_setexceptionports_np .Fa "posix_spawnattr_t *attr" .Fa "exception_mask_t mask" .Fa "mach_port_t new_port" .Fa "exception_behavior_t behavior" .Fa "thread_state_flavor_t flavor" .Fc .Sh IMPORTANT These functions represent an Apple extension to .Xr posix_spawn 2 and .Xr posix_spawnp 2 , and as such should not be used by programs intending their code to be portable to other platforms. .Sh DESCRIPTION The .Fn posix_spawnattr_setspecialport_np function sets a new value for a .Em Mach special port into the value referenced by .Fa attr to the port referenced by .Fa new_port for a port value of .Fa which , as if the new process had called .Fn task_set_special_port .

p The .Fn posix_spawnattr_setexceptionports_np function sets the .Em Mach port to .Fa new_port for a number of exception ports represented by the bitfield .Fa mask , and sets the new default .Fa behavior and default .Fa flavor , as if the new process had called .Fn task_set_exception_ports .

p .Sh RETURN VALUES On success, these functions return 0; on failure they return an error number from n errno.h . .Sh ERRORS These functions may fail if: l -tag -width Er ==========
t Bq Er EINVAL The value specified by .Fa attr is invalid. ==========
t Bq Er EINVAL The value of .Fa attr is invalid. ==========
t Bq Er ENOMEM Insufficient resources exist to set the ports. .El .Sh SEE ALSO .Xr posix_spawn 2 , .Xr posix_spawnp 2 , .Xr posix_spawnattr_init 3 , .Xr posix_spawnattr_destroy 3 .Sh STANDARDS Nonstandard .Sh HISTORY The .Fn posix_spawnattr_setspecialport_np and .Fn posix_spawnattr_setexceptionports_np function calls appeared in Mac OS X.