posix_spawn_file_actions_addclosefrom_np - add closefrom action to spawn file actions object
#include <spawn.h> int posix_spawn_file_actions_addclosefrom_np( posix_spawn_file_actions_t *file_actions, int lowfildes);
The posix_spawn_file_actions_addclosefrom_np() function adds a closefrom action to the object referenced by file_actions that causes all open file descriptors greater than or equal to lowfildes to be closed when a new process is spawned using this file actions object (see closefrom(3C)).
A spawn file actions object is as defined in posix_spawn_file_actions_addclose(3C).
Upon successful completion, the posix_spawn_file_actions_addclosefrom_np() function returns 0. Otherwise, an error number is returned to indicate the error.
The posix_spawn_file_actions_addclosefrom_np() function will fail if:
The value specified by lowfildes is negative.
The posix_spawn_file_actions_addclosefrom_np() function may fail if:
The value specified by file_actions is invalid.
Insufficient memory exists to add to the spawn file actions object.
See attributes(5) for descriptions of the following attributes:
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close(2), closefrom(3C), posix_spawn(3C), posix_spawn_file_actions_addclose(3C) , attributes(5)