check return value of write.

ok beck@ jsing@

1 files changed, 15 insertions, 4 deletions

diff --git a/src/lib/libssl/src/apps/s_server.c b/src/lib/libssl/src/apps/s_server.c
index 1c13d5517d..45c4f5fa9c 100644
--- a/src/lib/libssl/src/apps/s_server.c
+++ b/src/lib/libssl/src/apps/s_server.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: s_server.c,v 1.56 2014/07/09 21:02:35 tedu Exp $ */
+/* $OpenBSD: s_server.c,v 1.57 2014/07/10 08:59:15 bcook Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -1709,9 +1709,20 @@ sv_body(char *hostname, int s, unsigned char *context)
                 again:
                                 i = SSL_read(con, (char *) buf, bufsize);
                                 switch (SSL_get_error(con, i)) {
-                                case SSL_ERROR_NONE:
-                                        write(fileno(stdout), buf,
-                                            (unsigned int) i);
+                                case SSL_ERROR_NONE: {
+                                                int len, n;
+                                                for (len = 0; len < i;) {
+                                                        do {
+                                                                n = write(fileno(stdout), buf + len, i - len);
+                                                        } while (n == -1 && errno == EINTR);
+
+                                                        if (n < 0) {
+                                                                BIO_printf(bio_s_out, "ERROR\n");
+                                                                goto err;
+                                                        }
+                                                        len += n;
+                                                }
+                                        }
                                         if (SSL_pending(con))
                                                 goto again;
                                         break;