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support IPv6

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@6606 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Assar Westerlund
1999-07-27 21:16:54 +00:00
parent 088b640173
commit c0f10ca664
1 changed files with 119 additions and 25 deletions
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144
lib/roken/mini_inetd.c
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 1995, 1996, 1997 Kungliga Tekniska H<>gskolan
* Copyright (c) 1995, 1996, 1997, 1998, 1999 Kungliga Tekniska H<>gskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
@@ -49,6 +49,9 @@ RCSID("$Id$");
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
@@ -65,32 +68,33 @@ RCSID("$Id$");
#include <roken.h>
void
mini_inetd (int port)
static void
socket_set_reuseaddr (int sock, int val)
{
#if defined(SO_REUSEADDR) && defined(HAVE_SETSOCKOPT)
if(setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void *)&val,
sizeof(val)) < 0){
perror("setsockopt");
exit(1);
}
#endif
}
static int
listen_v4 (int port)
{
struct sockaddr_in sa;
int s;
int s2;
s = socket(AF_INET, SOCK_STREAM, 0);
if(s < 0) {
perror("socket");
exit(1);
}
#if defined(SO_REUSEADDR) && defined(HAVE_SETSOCKOPT)
{
int one = 1;
if(setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (void *)&one,
sizeof(one)) < 0){
perror("setsockopt");
exit(1);
}
}
#endif
socket_set_reuseaddr (s, 1);
memset(&sa, 0, sizeof(sa));
sa.sin_family = AF_INET;
sa.sin_port = port;
sa.sin_family = AF_INET;
sa.sin_port = port;
sa.sin_addr.s_addr = INADDR_ANY;
if(bind(s, (struct sockaddr*)&sa, sizeof(sa)) < 0){
perror("bind");
@@ -100,14 +104,104 @@ mini_inetd (int port)
perror("listen");
exit(1);
}
s2 = accept(s, NULL, 0);
if(s2 < 0){
perror("accept");
return s;
}
#ifdef HAVE_IPV6
static int
listen_v6 (int port)
{
struct sockaddr_in6 sa;
int s;
s = socket(AF_INET6, SOCK_STREAM, 0);
if(s < 0) {
perror("socket");
exit(1);
}
close(s);
dup2(s2, STDIN_FILENO);
dup2(s2, STDOUT_FILENO);
/* dup2(s2, STDERR_FILENO); */
close(s2);
socket_set_reuseaddr (s, 1);
memset(&sa, 0, sizeof(sa));
sa.sin6_family = AF_INET6;
sa.sin6_port = port;
sa.sin6_addr = in6addr_any;
if(bind(s, (struct sockaddr*)&sa, sizeof(sa)) < 0){
perror("bind");
exit(1);
}
if(listen(s, SOMAXCONN) < 0){
perror("listen");
exit(1);
}
return s;
}
#endif /* HAVE_IPV6 */
/*
* accept a connection on `s' and pretend it's served by inetd.
*/
static void
accept_it (int s)
{
int s2;
s2 = accept(s, NULL, 0);
if(s2 < 0){
perror("accept");
exit(1);
}
close(s);
dup2(s2, STDIN_FILENO);
dup2(s2, STDOUT_FILENO);
/* dup2(s2, STDERR_FILENO); */
close(s2);
}
/*
* Listen on `port' emulating inetd.
*/
void
mini_inetd (int port)
{
int ret;
int max_fd = -1;
int sock_v4 = -1;
int sock_v6 = -1;
fd_set read_set;
FD_ZERO(&read_set);
sock_v4 = listen_v4 (port);
if (sock_v4 >= 0) {
max_fd = max(max_fd, sock_v4);
FD_SET(sock_v4, &read_set);
}
#ifdef HAVE_IPV6
sock_v6 = listen_v6 (port);
if (sock_v6 >= 0) {
max_fd = max(max_fd, sock_v4);
FD_SET(sock_v6, &read_set);
}
#endif
do {
fd_set rset = read_set;
ret = select (max_fd + 1, &rset, NULL, NULL, NULL);
if (ret < 0 && ret != EINTR) {
perror ("select");
exit (1);
}
} while (ret <= 0);
if (sock_v4 > 0 && FD_ISSET (sock_v4, &read_set)) {
accept_it (sock_v4);
return;
}
if (sock_v6 > 0 && FD_ISSET (sock_v6, &read_set)) {
accept_it (sock_v6);
return;
}
abort ();
}