@@ -14,6 +14,24 @@ int inet_aton(const char *cp, struct in_addr *ia);
/* misc helpers */
bool fd_is_socket(int fd);
int qemu_socket(int domain, int type, int protocol);
+
+#ifndef WIN32
+/**
+ * qemu_socketpair:
+ * @domain: specifies a communication domain, such as PF_UNIX
+ * @type: specifies the socket type.
+ * @protocol: specifies a particular protocol to be used with the socket
+ * @sv: an array to store the pair of socket created
+ *
+ * Creates an unnamed pair of connected sockets in the specified domain,
+ * of the specified type, and using the optionally specified protocol.
+ * And automatically set the close-on-exec flags on the returned sockets
+ *
+ * Return 0 on success.
+ */
+int qemu_socketpair(int domain, int type, int protocol, int sv[2]);
+#endif
+
int qemu_accept(int s, struct sockaddr *addr, socklen_t *addrlen);
int socket_set_cork(int fd, int v);
int socket_set_nodelay(int fd);
@@ -261,6 +261,25 @@ void qemu_set_cloexec(int fd)
assert(f != -1);
}
+int qemu_socketpair(int domain, int type, int protocol, int sv[2])
+{
+ int ret;
+
+#ifdef SOCK_CLOEXEC
+ ret = socketpair(domain, type | SOCK_CLOEXEC, protocol, sv);
+ if (ret != -1 || errno != EINVAL) {
+ return ret;
+ }
+#endif
+ ret = socketpair(domain, type, protocol, sv);;
+ if (ret == 0) {
+ qemu_set_cloexec(sv[0]);
+ qemu_set_cloexec(sv[1]);
+ }
+
+ return ret;
+}
+
char *
qemu_get_local_state_dir(void)
{