[src/trunk]: src/sys/netinet avoid "variable not initialized" warnings on som...

[itojun <itojun%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/48b98ab6c2de
branches:  trunk
changeset: 474261:48b98ab6c2de
user:      itojun <itojun%NetBSD.org@localhost>
date:      Fri Jul 02 12:45:32 1999 +0000

description:
avoid "variable not initialized" warnings on some of the platforms.

diffstat:

 sys/netinet/tcp_input.c  |   7 ++++++-
 sys/netinet/tcp_output.c |  13 ++++++++++++-
 sys/netinet/tcp_subr.c   |  11 ++++++++++-
 sys/netinet/tcp_usrreq.c |   4 +++-
 4 files changed, 31 insertions(+), 4 deletions(-)

diffs (126 lines):

diff -r d800904e2702 -r 48b98ab6c2de sys/netinet/tcp_input.c
--- a/sys/netinet/tcp_input.c   Fri Jul 02 12:43:42 1999 +0000
+++ b/sys/netinet/tcp_input.c   Fri Jul 02 12:45:32 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: tcp_input.c,v 1.83 1999/07/01 08:12:51 itojun Exp $    */
+/*     $NetBSD: tcp_input.c,v 1.84 1999/07/02 12:45:32 itojun Exp $    */
 
 /*
 %%% portions-copyright-nrl-95
@@ -3215,6 +3215,8 @@
                th->th_sport = sc->sc_dst.sin6.sin6_port;
                break;
 #endif
+       default:
+               th = NULL;
        }
 
        th->th_seq = htonl(sc->sc_iss);
@@ -3327,6 +3329,9 @@
                        0, NULL);
                break;
 #endif
+       default:
+               error = EAFNOSUPPORT;
+               break;
        }
        return (error);
 }
diff -r d800904e2702 -r 48b98ab6c2de sys/netinet/tcp_output.c
--- a/sys/netinet/tcp_output.c  Fri Jul 02 12:43:42 1999 +0000
+++ b/sys/netinet/tcp_output.c  Fri Jul 02 12:45:32 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: tcp_output.c,v 1.48 1999/07/01 08:12:51 itojun Exp $   */
+/*     $NetBSD: tcp_output.c,v 1.49 1999/07/02 12:45:32 itojun Exp $   */
 
 /*
 %%% portions-copyright-nrl-95
@@ -584,6 +584,9 @@
                iphdrlen = sizeof(struct ip6_hdr) + sizeof(struct tcphdr);
                break;
 #endif
+       default:        /*pacify gcc*/
+               iphdrlen = 0;
+               break;
        }
        hdrlen = iphdrlen;
        if (flags & TH_SYN) {
@@ -768,6 +771,11 @@
                th = (struct tcphdr *)(ip6 + 1);
                break;
 #endif
+       default:        /*pacify gcc*/
+               ip = NULL;
+               ip6 = NULL;
+               th = NULL;
+               break;
        }
        if (tp->t_template == 0)
                panic("tcp_output");
@@ -1062,6 +1070,9 @@
                break;
            }
 #endif
+       default:
+               error = EAFNOSUPPORT;
+               break;
        }
        if (error) {
 out:
diff -r d800904e2702 -r 48b98ab6c2de sys/netinet/tcp_subr.c
--- a/sys/netinet/tcp_subr.c    Fri Jul 02 12:43:42 1999 +0000
+++ b/sys/netinet/tcp_subr.c    Fri Jul 02 12:45:32 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: tcp_subr.c,v 1.67 1999/07/01 08:12:51 itojun Exp $     */
+/*     $NetBSD: tcp_subr.c,v 1.68 1999/07/02 12:45:32 itojun Exp $     */
 
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -256,6 +256,7 @@
                return NULL;    /*EINVAL*/
 #endif
        default:
+               hlen = 0;       /*pacify gcc*/
                return NULL;    /*EAFNOSUPPORT*/
        }
        if ((m = tp->t_template) == 0) {
@@ -444,6 +445,11 @@
                        th = (struct tcphdr *)(ip6 + 1);
                        break;
 #endif
+               default:        /*pacify gcc*/
+                       ip = NULL;
+                       ip6 = NULL;
+                       th = NULL;
+                       break;
                }
                flags = TH_ACK;
        } else {
@@ -653,6 +659,9 @@
                error = ip6_output(m, NULL, (struct route_in6 *)ro, 0, NULL);
                break;
 #endif
+       default:
+               error = EAFNOSUPPORT;
+               break;
        }
 
        if (ro == (struct route *)&iproute) {
diff -r d800904e2702 -r 48b98ab6c2de sys/netinet/tcp_usrreq.c
--- a/sys/netinet/tcp_usrreq.c  Fri Jul 02 12:43:42 1999 +0000
+++ b/sys/netinet/tcp_usrreq.c  Fri Jul 02 12:45:32 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: tcp_usrreq.c,v 1.40 1999/07/01 08:12:51 itojun Exp $   */
+/*     $NetBSD: tcp_usrreq.c,v 1.41 1999/07/02 12:45:32 itojun Exp $   */
 
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -746,6 +746,8 @@
        else if (in6p)
                tp = tcp_newtcpcb(family, (void *)in6p);
 #endif
+       else
+               tp = NULL;
 
        if (tp == 0) {
                int nofd = so->so_state & SS_NOFDREF;   /* XXX */