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POSIX_SPAWNATTR_SETSPECIALPORT_NP(3)    BSD Library Functions Manual    POSIX_SPAWNATTR_SETSPECIALPORT_NP(3)

NAME
     posix_spawnattr_setspecialport_np posix_spawnattr_setexceptionports_np -- set or get the spawn-binpref
     attribute on a posix_spawnattr_t

SYNOPSIS
     #include <spawn.h>

     int
     posix_spawnattr_setspecialport_np(posix_spawnattr_t *attr, mach_port_t new_port, int which);

     int
     posix_spawnattr_setexceptionports_np(posix_spawnattr_t *attr, exception_mask_t mask,
         mach_port_t new_port, exception_behavior_t behavior, thread_state_flavor_t flavor);

IMPORTANT
     These functions represent an Apple extension to posix_spawn(2) and posix_spawnp(2), and as such should
     not be used by programs intending their code to be portable to other platforms.

DESCRIPTION
     The posix_spawnattr_setspecialport_np() function sets a new value for a Mach special port into the
     value referenced by attr to the port referenced by new_port for a port value of which, as if the new
     process had called task_set_special_port().

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

RETURN VALUES
     On success, these functions return 0; on failure they return an error number from <errno.h>.

ERRORS
     These functions may fail if:

     [EINVAL]           The value specified by attr is invalid.

     [EINVAL]           The value of attr is invalid.

     [ENOMEM]           Insufficient resources exist to set the ports.

SEE ALSO
     posix_spawn(2), posix_spawnp(2), posix_spawnattr_init(3), posix_spawnattr_destroy(3)

STANDARDS
     Nonstandard

HISTORY
     The posix_spawnattr_setspecialport_np() and posix_spawnattr_setexceptionports_np() function calls
     appeared in Mac OS X.

Mac OS X                                       August 22, 2007                                      Mac OS X