third_party/ulib/musl/src/process/posix_spawn_file_actions_addclose.c

#include "fdop.h"
#include <errno.h>
#include <spawn.h>
#include <stdlib.h>

int posix_spawn_file_actions_addclose(posix_spawn_file_actions_t* fa, int fd) {
    struct fdop* op = malloc(sizeof *op);
    if (!op)
        return ENOMEM;
    op->cmd = FDOP_CLOSE;
    op->fd = fd;
    if ((op->next = fa->__actions))
        op->next->prev = op;
    op->prev = 0;
    fa->__actions = op;
    return 0;
}