/*
* bind to "base_name-local_name"
* connect to "base_name-remote_name"
* output sock_pt
*/
static int32_t
qb_ipc_dgram_sock_connect(const char *base_name,
const char *local_name,
const char *remote_name,
int32_t max_msg_size, int32_t * sock_pt)
{
char sock_path[PATH_MAX];
struct sockaddr_un remote_address;
int32_t res = qb_ipc_dgram_sock_setup(base_name, local_name,
sock_pt);
if (res < 0) {
return res;
}
snprintf(sock_path, PATH_MAX, "%s-%s", base_name, remote_name);
set_sock_addr(&remote_address, sock_path);
if (connect(*sock_pt, (struct sockaddr *)&remote_address,
QB_SUN_LEN(&remote_address)) == -1) {
res = -errno;
goto error_connect;
}
return set_sock_size(*sock_pt, max_msg_size);
error_connect:
close(*sock_pt);
*sock_pt = -1;
return res;
}
static int32_t
_finish_connecting(struct qb_ipc_one_way *one_way)
{
struct sockaddr_un remote_address;
int res;
int error;
int retry = 0;
set_sock_addr(&remote_address, one_way->u.us.sock_name);
/* this retry loop is here to help connecting when trying to send
* an event right after connection setup.
*/
do {
errno = 0;
res = connect(one_way->u.us.sock,
(struct sockaddr *)&remote_address,
QB_SUN_LEN(&remote_address));
if (res == -1) {
error = -errno;
qb_util_perror(LOG_DEBUG, "error calling connect()");
retry++;
usleep(100000);
}
} while (res == -1 && retry < 10);
if (res == -1) {
return error;
}
free(one_way->u.us.sock_name);
one_way->u.us.sock_name = NULL;
return set_sock_size(one_way->u.us.sock, one_way->max_msg_size);
}
static int32_t
qb_ipc_dgram_sock_setup(const char *base_name,
const char *service_name, int32_t * sock_pt,
gid_t gid)
{
int32_t request_fd;
struct sockaddr_un local_address;
int32_t res = 0;
char sock_path[PATH_MAX];
request_fd = socket(PF_UNIX, SOCK_DGRAM, 0);
if (request_fd == -1) {
return -errno;
}
qb_socket_nosigpipe(request_fd);
res = qb_sys_fd_nonblock_cloexec_set(request_fd);
if (res < 0) {
goto error_connect;
}
snprintf(sock_path, PATH_MAX, "%s-%s", base_name, service_name);
set_sock_addr(&local_address, sock_path);
#if !(defined(QB_LINUX) || defined(QB_CYGWIN))
res = unlink(local_address.sun_path);
#endif
res = bind(request_fd, (struct sockaddr *)&local_address,
sizeof(local_address));
#if !(defined(QB_LINUX) || defined(QB_CYGWIN))
chmod(local_address.sun_path, 0660);
chown(local_address.sun_path, -1, gid);
#endif
if (res < 0) {
goto error_connect;
}
*sock_pt = request_fd;
return 0;
error_connect:
close(request_fd);
*sock_pt = -1;
return res;
}
static int32_t
qb_ipc_dgram_sock_setup(const char *base_name,
const char *service_name, int32_t * sock_pt)
{
int32_t request_fd;
struct sockaddr_un local_address;
int32_t res = 0;
char sock_path[PATH_MAX];
request_fd = socket(PF_UNIX, SOCK_DGRAM, 0);
if (request_fd == -1) {
return -errno;
}
qb_socket_nosigpipe(request_fd);
res = qb_sys_fd_nonblock_cloexec_set(request_fd);
if (res < 0) {
goto error_connect;
}
snprintf(sock_path, PATH_MAX, "%s-%s", base_name, service_name);
set_sock_addr(&local_address, sock_path);
res = bind(request_fd, (struct sockaddr *)&local_address,
sizeof(local_address));
if (res < 0) {
goto error_connect;
}
*sock_pt = request_fd;
return 0;
error_connect:
close(request_fd);
*sock_pt = -1;
return res;
}