--- /dev/null
+#include "syshdrs.h"
+
+#if !defined(NO_UNIX_DOMAIN_SOCKETS) && !defined(NO_SIGNALS)
+
+extern volatile Sjmp_buf gNetTimeoutJmp;
+extern volatile Sjmp_buf gPipeJmp;
+
+int
+UConnect(int sfd, const struct sockaddr_un *const addr, int ualen, int tlen)
+{
+ int result;
+ vsio_sigproc_t sigalrm;
+
+ if (SSetjmp(gNetTimeoutJmp) != 0) {
+ alarm(0);
+ (void) SSignal(SIGALRM, (sio_sigproc_t) sigalrm);
+ errno = ETIMEDOUT;
+ return (kTimeoutErr);
+ }
+
+ sigalrm = (vsio_sigproc_t) SSignal(SIGALRM, SIOHandler);
+ alarm((unsigned int) tlen);
+
+ errno = 0;
+ do {
+ result = connect(sfd, (struct sockaddr *) addr, ualen);
+ } while ((result < 0) && (errno == EINTR));
+
+ alarm(0);
+ (void) SSignal(SIGALRM, (sio_sigproc_t) sigalrm);
+ return (result);
+} /* UConnect */
+
+#endif
+