Testsuite: harden for TLS1.3 under GnuTLS

[users/heiko/exim.git] / test / src / client.c

diff --git a/test/src/client.c b/test/src/client.c
index c0c017dd3ab863aadcb4acb7dda98c87f35e84fc..64b8203bf5bbf997c5f85e94ded9220ff098271f 100644 (file)
--- a/test/src/client.c
+++ b/test/src/client.c
@@ -604,7 +604,21 @@ nextinput:
            }
 #endif
 #ifdef HAVE_GNUTLS
+      retry1:
+       DEBUG { printf("call gnutls_record_recv\n"); fflush(stdout); }
         rc = gnutls_record_recv(tls_session, CS inbuffer, bsiz - 1);
+       if (rc < 0)
+         {
+         DEBUG { printf("gnutls_record_recv: %s\n", gnutls_strerror(rc)); fflush(stdout); }
+         if (rc == GNUTLS_E_INTERRUPTED || rc == GNUTLS_E_AGAIN)
+           goto retry1;
+         printf("%s\n", gnutls_strerror(rc));
+         srv->tls_active = FALSE;
+         *inptr = 0;
+         DEBUG { printf("go round\n"); fflush(stdout); }
+         goto nextinput;
+         }
+       DEBUG { printf("gnutls_record_recv: %d\n", rc); fflush(stdout); }
 #endif
         }
       else
@@ -619,7 +633,7 @@ nextinput:
        {
        if (errno == EINTR && sigalrm_seen && resp_optional)
          continue;     /* next scriptline */
-        printf("Read error %s\n", strerror(errno));
+        printf("Read error: %s\n", strerror(errno));
         exit(81);
        }
       else if (rc == 0)
@@ -702,6 +716,9 @@ nextinput:
         #ifdef HAVE_GNUTLS
          {
          int rc;
+         fd_set rfd;
+         struct timeval tv = { 0, 2000 };
+
          sigalrm_seen = FALSE;
          alarm(timeout);
          do {
@@ -711,6 +728,25 @@ nextinput:
          alarm(0);
 
          if (!srv->tls_active) printf("%s\n", gnutls_strerror(rc));
+
+         /* look for an error on the TLS conn */
+         FD_ZERO(&rfd);
+         FD_SET(srv->sock, &rfd);
+         if (select(srv->sock+1, &rfd, NULL, NULL, &tv) > 0)
+           {
+         retry2:
+           DEBUG { printf("call gnutls_record_recv\n"); fflush(stdout); }
+           rc = gnutls_record_recv(tls_session, CS inbuffer, bsiz - 1);
+           if (rc < 0)
+             {
+             DEBUG { printf("gnutls_record_recv: %s\n", gnutls_strerror(rc)); fflush(stdout); }
+             if (rc == GNUTLS_E_INTERRUPTED || rc == GNUTLS_E_AGAIN)
+               goto retry2;
+             printf("%s\n", gnutls_strerror(rc));
+             srv->tls_active = FALSE;
+             }
+           DEBUG { printf("gnutls_record_recv: %d\n", rc); fflush(stdout); }
+           }
          }
         #endif