odyssey/third_party/machinarium/sources/dns.c

/*
 * machinarium.
 *
 * cooperative multitasking engine.
*/

#include <machinarium.h>
#include <machinarium_private.h>

typedef struct {
	char            *addr;
	char            *service;
	struct addrinfo *hints;
	struct addrinfo **res;
	int             rc;
} mm_getaddrinfo_t;

static void
mm_getaddrinfo_cb(void *arg)
{
	mm_getaddrinfo_t *gai = arg;
	gai->rc = mm_socket_getaddrinfo(gai->addr, gai->service, gai->hints, gai->res);
}

MACHINE_API int
machine_getaddrinfo(char *addr, char *service,
                    struct addrinfo *hints,
                    struct addrinfo **res,
                    uint32_t time_ms)
{
	mm_getaddrinfo_t gai = {
		.addr = addr,
		.service = service,
		.hints = hints,
		.res = res,
		.rc = 0
	};
	int rc;
	rc = mm_taskmgr_new(&machinarium.task_mgr, mm_getaddrinfo_cb, &gai, time_ms);
	if (rc == -1)
		return -1;
	return gai.rc;
}

MACHINE_API int
machine_getsockname(machine_io_t *obj, struct sockaddr *sa, int *salen)
{
	mm_io_t *io = mm_cast(mm_io_t*, obj);
	mm_errno_set(0);
	socklen_t slen = *salen;
	int rc = mm_socket_getsockname(io->fd, sa, &slen);
	if (rc < 0) {
		mm_errno_set(errno);
		return -1;
	}
	*salen = slen;
	return 0;
}

MACHINE_API int
machine_getpeername(machine_io_t *obj, struct sockaddr *sa, int *salen)
{
	mm_io_t *io = mm_cast(mm_io_t*, obj);
	mm_errno_set(0);
	socklen_t slen = *salen;
	int rc = mm_socket_getpeername(io->fd, sa, &slen);
	if (rc < 0) {
		mm_errno_set(errno);
		return -1;
	}
	*salen = slen;
	return 0;
}