Hi, I'm attaching a patch that fixes it for me. (See comments in the DEP-3 patch.)
bye, Roland
Description: Fix IPv6-bind IPv4-remote This patch fixes an error in the "hints" handling of the host resolver which confused local/source and remote hint (AF_INET/AF_INET6). Author: Roland Stigge <sti...@antcom.de> Bug-Debian: http://bugs.debian.org/601030 --- 6tunnel-0.11rc2.orig/6tunnel.c +++ 6tunnel-0.11rc2/6tunnel.c @@ -43,7 +43,9 @@ } while(0) int verbose = 0, conn_count = 0; -int remote_port, verbose, hint = AF_INET6, hexdump = 0; +int remote_port, verbose, hexdump = 0; +int remote_hint = AF_INET6; +int local_hint = AF_INET; char *remote_host, *ircpass = NULL; char *ircsendpass = NULL, remote[128]; char *pid_file = NULL; @@ -218,7 +220,7 @@ void make_tunnel(int rsock, const char * debug("<%d> irc proxy auth succeded\n", rsock); } - if (!(sa = resolve_host(remote_host, hint))) { + if (!(sa = resolve_host(remote_host, remote_hint))) { debug("<%d> unable to resolve %s\n", rsock, remote_host); goto cleanup; } @@ -232,12 +234,12 @@ void make_tunnel(int rsock, const char * sa = NULL; if (source) { - if (!(sa = resolve_host(source, hint))) { + if (!(sa = resolve_host(source, local_hint))) { debug("<%d> unable to resolve source host (%s)\n", rsock, source); goto cleanup; } - if (bind(sock, sa, (hint == AF_INET) ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6))) { + if (bind(sock, sa, (local_hint == AF_INET) ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6))) { debug("<%d> unable to bind to source host (%s)\n", rsock, source); goto cleanup; } @@ -246,7 +248,7 @@ void make_tunnel(int rsock, const char * sa = NULL; } - sa = resolve_host(remote_host, hint); + sa = resolve_host(remote_host, remote_hint); ((struct sockaddr_in*) sa)->sin_port = htons(remote_port); @@ -507,7 +509,7 @@ void sigterm() int main(int argc, char **argv) { int force = 0, lsock, csock, one = 0, jeden = 1, local_port; - int detach = 1, listen6 = 0, sa_len, conn_limit = 0; + int detach = 1, sa_len, conn_limit = 0; char optc, *username = NULL, *bind_host = NULL; struct sockaddr *sa; struct sockaddr_in laddr, caddr; @@ -527,10 +529,10 @@ int main(int argc, char **argv) verbose = 1; break; case '4': - hint = AF_INET; break; case '6': - listen6 = 1; + remote_hint = AF_INET; + local_hint = AF_INET6; break; case 's': source_host = xstrdup(optarg); @@ -597,7 +599,7 @@ int main(int argc, char **argv) debug("resolving %s\n", remote_host); - if (!(sa = resolve_host(remote_host, hint)) && !force) { + if (!(sa = resolve_host(remote_host, remote_hint)) && !force) { fprintf(stderr, "%s: unable to resolve host %s\n", argv[0], remote_host); exit(1); } @@ -608,7 +610,7 @@ int main(int argc, char **argv) if (bind_host) { debug("resolving %s\n", bind_host); - if (!(sa = resolve_host(bind_host, (listen6) ? AF_INET6 : AF_INET))) { + if (!(sa = resolve_host(bind_host, local_hint))) { fprintf(stderr, "%s: unable to resolve host %s\n", argv[0], remote_host); exit(1); } @@ -622,7 +624,7 @@ int main(int argc, char **argv) else debug("source: %s\n", (source_host) ? source_host : "default"); - if (!listen6) { + if (local_hint == AF_INET) { lsock = socket(PF_INET, SOCK_STREAM, 0); memset(&laddr, 0, (sa_len = sizeof(laddr)));
