1 files changed, 633 insertions, 0 deletions

diff --git a/www/junkbuster/files/patch-ao b/www/junkbuster/files/patch-ao
new file mode 100644
index 000000000000..58e6fdd74ead
--- /dev/null
+++ b/www/junkbuster/files/patch-ao
@@ -0,0 +1,633 @@
+Obtained from: ftp://ftp.linux.org.uk/pub/linux/rmk/ijb20.rmk.diff
+
+--- bind.c.orig	Fri Nov 30 11:25:23 2001
++++ bind.c	Fri Nov 30 11:33:46 2001
+@@ -45,6 +45,242 @@
+ long  remote_ip_long;
+ char *remote_ip_str;
+ 
++#ifdef HAVE_IPV6
++#ifdef HAVE_POLL
++/*
++ * Do we have the superiour poll() interface?
++ */
++#include <sys/poll.h>
++
++static struct pollfd	*b_pfd;
++static int		nr_fds;
++#else
++/*
++ * Argh, we've only got the select() interface.
++ */
++#include <sys/select.h>
++
++static fd_set		sfd;
++static int		max_fd;
++#endif
++
++static int add_fd(fd)
++	int fd;
++{
++#ifdef HAVE_POLL
++	struct pollfd *n;
++	int nr = nr_fds + 1;
++
++	n = realloc(b_pfd, nr * sizeof(*n));
++	if (!n)
++		return -3;
++
++	n[nr_fds].fd     = fd;
++	n[nr_fds].events = POLLIN;
++
++	b_pfd  = n;
++	nr_fds = nr;
++
++	return 0;
++#else
++	if (fd >= max_fd)
++		max_fd = fd + 1;
++	FD_SET(fd, &sfd);
++	return 0;
++#endif
++}
++
++/*
++ * Bind one port of an address family, specified by `ai'
++ */
++static int bind_one(ai)
++	struct addrinfo *ai;
++{
++	int fd, one = 1;
++
++	fd = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
++	if (fd == -1) {
++		/*
++		 * Is it an unsupported family or protocol?
++		 * Move along please.
++		 */
++		if (errno == EINVAL || errno == EPROTONOSUPPORT)
++			return -1;
++
++		/*
++		 * Ok, something else went wrong - fatal error.
++		 */
++		return -3;
++	}
++
++	setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
++		   (char *)&one, sizeof(one));
++
++	/*
++	 * Now bind the socket.  This may fail on Linux.
++	 */
++	if (bind(fd, ai->ai_addr, ai->ai_addrlen) < 0) {
++		close(fd);
++
++		if (errno == EADDRINUSE)
++			return -2;
++		else
++			return -1;
++	}
++
++	/*
++	 * and ensure that it is listening.
++	 */
++	while (listen(fd, 5) == -1) {
++		if (errno != EINTR) {
++			close(fd);
++			return -1;
++		}
++	}
++
++	return add_fd(fd);
++}
++
++/*
++ * BIND-PORT (portnum)
++ *  if success, return file descriptor
++ *  if failure, returns -2 if address is in use, otherwise -1
++ */
++int 	bind_port (hostnam, portnum)
++char	*hostnam;
++int	 portnum;
++{
++	struct addrinfo *ai, *aip, aihint;
++	int rc, nr = 0;
++	char serv[NI_MAXSERV];
++
++	if (snprintf(serv, NI_MAXSERV, "%d", portnum) >= NI_MAXSERV)
++		return -1;
++
++	memset(&aihint, 0, sizeof(aihint));
++
++	aihint.ai_flags = AI_PASSIVE;
++	aihint.ai_family = PF_UNSPEC;
++	aihint.ai_socktype = SOCK_STREAM;
++
++	rc = getaddrinfo(hostnam, serv, &aihint, &ai);
++	if (rc)
++		return -1;
++
++	/*
++	 * Go through each entry creating a socket and trying
++	 * to bind it.  Note that on Linux, if we bind to an
++	 * IPv6 address, we can't bind to it's corresponding
++	 * IPv4 address, so we bind IPv6 first, then IPv4.
++	 * 
++	 * We classify success as being able to establish at
++	 * least one listening socket.
++	 */
++	for (aip = ai; aip; aip = aip->ai_next) {
++		if (aip->ai_family == PF_INET6) {
++			rc = bind_one(aip);
++			if (rc == 0)
++				nr++;
++		}
++	}
++
++	for (aip = ai; aip; aip = aip->ai_next) {
++		if (aip->ai_family == PF_INET) {
++			rc = bind_one(aip);
++			if (rc == 0)
++				nr++;
++		}
++	}
++
++	freeaddrinfo(ai);
++
++	if (nr != 0)
++		rc = 0;
++
++	return rc;
++}
++
++/* 
++ * ACCEPT-CONNECTION
++ * the argument, fd, is the value returned from bind_port
++ *
++ * when a connection is accepted, it returns the file descriptor
++ * for the connected port
++ */
++int	accept_connection (_fd)
++int	_fd;
++{
++	struct sockaddr_storage sa;
++	int afd, alen = sizeof(sa);
++	char host[NI_MAXHOST];
++	int rc, fd;
++
++#ifdef HAVE_POLL
++	int i;
++
++	do {
++		rc = poll(b_pfd, nr_fds, -1);
++	} while (rc == 0 || (rc == -1 && errno == EINTR));
++
++	/*
++	 * I wish we could spawn the handler here.  Alas, without
++	 * rewriting more of ijb...
++	 */
++	for (i = 0; i < nr_fds; i++)
++		if (b_pfd[i].revents)
++			break;
++
++	/*
++	 * hmm, if we ran out of fds to check, someone lied to us.
++	 */
++	if (i >= nr_fds)
++		return -1;
++
++	fd = b_pfd[i].fd;
++#else
++	fd_set rfds;
++
++	rfds = sfd;
++	do {
++		rc = select(max_fd, &rfds, NULL, NULL, NULL);
++	} while (rc == 0 || (rc == -1 && errno == EINTR));
++
++	/*
++	 * Find the first fd.  Same comment as above.
++	 */
++	for (fd = 0; fd < max_fd; fd++)
++		if (FD_ISSET(fd, &rfds))
++			break;
++
++	/*
++	 * If we found no fds, someone lied to us.
++	 */
++	if (fd >= max_fd)
++		return -1;
++
++#endif
++	afd = accept(fd, (struct sockaddr *)&sa, &alen);
++	if (afd < 0)
++		return -1;
++
++	if (getnameinfo((struct sockaddr *)&sa, alen,
++			host, NI_MAXHOST,
++			NULL, 0, NI_NUMERICHOST))
++		strcpy(host, "unknown");
++
++	remote_ip_str = strdup(host);
++	remote_ip_long = 0;
++
++	return afd;
++}
++#else
++/*
++ * -------------------------------- IPv4 ----------------------------
++ */
++
++extern int atoip();
++
++
+ /*
+  * BIND-PORT (portnum)
+  *  if success, return file descriptor
+@@ -100,7 +336,6 @@
+ 	return fd;
+ }
+ 
+-
+ /* 
+  * ACCEPT-CONNECTION
+  * the argument, fd, is the value returned from bind_port
+@@ -128,3 +363,5 @@
+ 
+ 	return afd;
+ }
++#endif
++
+--- conn.c.orig	Fri Nov 30 11:25:23 2001
++++ conn.c	Fri Nov 30 11:30:30 2001
+@@ -41,6 +41,10 @@
+ #include "gnuregex.h"
+ #endif
+ 
++#ifdef HAVE_POLL
++#include <sys/poll.h>
++#endif
++
+ #include "jcc.h"
+ 
+ int
+@@ -82,14 +86,127 @@
+ 	return(inaddr.sin_addr.s_addr);
+ }
+ 
++#ifdef HAVE_IPV6
++int connect_to(char *host, int portnum, struct client_state *csp)
++{
++	struct addrinfo *ai, *aip, aihint;
++	int fd = -1, rc;
++	char serv[NI_MAXSERV];
++
++	if (snprintf(serv, NI_MAXSERV, "%d", portnum) >= NI_MAXSERV) {
++		errno = EOVERFLOW;
++		return -1;
++	}
++
++	memset(&aihint, 0, sizeof(aihint));
++
++	aihint.ai_family = PF_UNSPEC;
++	aihint.ai_socktype = SOCK_STREAM;
++
++	rc = getaddrinfo(host, serv, &aihint, &ai);
++	if (rc)
++		return -1;
++
++	/*
++	 * Go through each entry trying to connect to the host.
++	 */
++	for (aip = ai; aip; aip = aip->ai_next) {
++		int flags;
++
++		fd = socket(aip->ai_family, aip->ai_socktype, aip->ai_protocol);
++		if (fd == -1)
++			continue;
++
++#ifdef TCP_NODELAY	/* turn off TCP coalescence */
++		{
++			int mi = 1;
++			setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (char *)&mi, sizeof(mi));
++		}
++#endif
++#if !defined(_WIN32) && !defined(__BEOS__)
++		flags = fcntl(fd, F_GETFL, 0);
++		if (flags != -1)
++			fcntl(fd, F_SETFL, flags | O_NDELAY);
++#endif
++		do {
++			rc = connect(fd, aip->ai_addr, aip->ai_addrlen);
++		} while (rc == -1 && errno == EINTR);
++
++		if (rc == -1 && errno != EINPROGRESS) {
++			close(fd);
++			fd = -1;
++			continue;
++		}
++
++		/*
++		 * Ok, the connection is in progress.
++		 */
++#if !defined(_WIN32) && !defined(__BEOS__)
++		if (flags != -1)
++			fcntl(fd, F_SETFL, flags);
++#endif
++		{
++#ifdef HAVE_POLL
++			struct pollfd pfd;
++
++			pfd.fd = fd;
++			pfd.events = POLLOUT | POLLERR | POLLHUP;
++
++			if (poll(&pfd, 1, 30000) <= 0) {
++				close(fd);
++				fd = -1;
++				continue;
++			}
++
++			if (pfd.revents & (POLLERR|POLLHUP)) {
++				close(fd);
++				fd = -1;
++				continue;
++			}
++#else
++			fd_set rfds, wfds;
++			struct timeval tv[1];
++
++			FD_ZERO(&rfds);
++			FD_ZERO(&wfds);
++			FD_SET(fd, &rfds);
++			FD_SET(fd, &wfds);
++
++			tv->tv_sec  = 30;
++			tv->tv_usec = 0;
++
++			if (select(fd + 1, &rfds, &wfds, NULL, tv) <= 0) {
++				(void) close(fd);
++				fd = -1;
++				continue;
++			}
++
++			if (FD_ISSET(fd, &rfds) && FD_ISSET(fd, &wfds)) {
++				int r = 0, l = sizeof(r);
++
++				if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &r, &l)
++				    || r) {
++					(void) close(fd);
++					fd = -1;
++					continue;
++				}
++			}
++#endif
++		}
++		break;
++	}
++
++	freeaddrinfo(ai);
+ 
++	return fd;
++}
++
++#else
+ int
+ connect_to(char *host, int portnum, struct client_state *csp)
+ {
+ 	struct sockaddr_in inaddr;
+ 	int	fd, addr;
+-	fd_set wfds;
+-	struct timeval tv[1];
+ 	int	flags;
+ 	struct access_control_addr src[1], dst[1];
+ 
+@@ -122,23 +239,19 @@
+ 	}
+ 
+ #ifdef TCP_NODELAY
+-{	/* turn off TCP coalescence */
+-	int	mi = 1;
+-	setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, (char * ) &mi, sizeof (int));
+-}
++	{	/* turn off TCP coalescence */
++		int	mi = 1;
++		setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, (char * ) &mi, sizeof (int));
++	}
+ #endif
+-
+-#ifndef _WIN32
+-#ifndef __BEOS__
++#if !defined(_WIN32) && !defined(__BEOS__)
+ 	if ((flags = fcntl(fd, F_GETFL, 0)) != -1) {
+ 		flags |= O_NDELAY;
+ 		fcntl(fd, F_SETFL, flags);
+ 	}
+ #endif
+-#endif
+ 
+ 	while (connect(fd, (struct sockaddr *) & inaddr, sizeof inaddr) == -1) {
+-
+ #ifdef _WIN32
+ 		if (errno == WSAEINPROGRESS)
+ #else
+@@ -154,25 +267,59 @@
+ 		}
+ 	}
+ 
+-#ifndef _WIN32
+-#ifndef __BEOS__
++#if !defined(_WIN32) && !defined(__BEOS__)
+ 	if (flags != -1) {
+ 		flags &= ~O_NDELAY;
+ 		fcntl(fd, F_SETFL, flags);
+ 	}
+ #endif
+-#endif
+ 
+-	/* wait for connection to complete */
+-	FD_ZERO(&wfds);
+-	FD_SET(fd, &wfds);
++	{
++#ifdef HAVE_POLL
++		struct pollfd pfd;
++
++		pfd.fd = fd;
++		pfd.events = POLLOUT | POLLERR | POLLHUP;
++
++		if (poll(&pfd, 1, 30000) <= 0) {
++			close(fd);
++			return -1;
++		}
+ 
+-	tv->tv_sec  = 30;
+-	tv->tv_usec = 0;
++		if (pfd.revents & (POLLERR|POLLHUP)) {
++			close(fd);
++			return -1;
++		}
++#else
++		fd_set rfds, wfds;
++		struct timeval tv[1];
+ 
+-	if (select(fd + 1, NULL, &wfds, NULL, tv) <= 0) {
+-		(void) close(fd);
+-		return(-1);
++		/* wait for connection to complete */
++		FD_ZERO(&rfds);
++		FD_ZERO(&wfds);
++		FD_SET(fd, &rfds);
++		FD_SET(fd, &wfds);
++
++		tv->tv_sec  = 30;
++		tv->tv_usec = 0;
++
++		if (select(fd + 1, &rfds, &wfds, NULL, tv) <= 0) {
++			(void) close(fd);
++			return(-1);
++		}
++
++		if (FD_ISSET(fd, &rfds) && FD_ISSET(fd, &wfds)) {
++			int r = 0, l = sizeof(r);
++
++			if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &r, &l)
++			    || r) {
++				(void) close(fd);
++				fd = -1;
++			}
++		}
++#endif
+ 	}
++
+ 	return(fd);
+ }
++#endif
+--- jcc.c.orig	Fri Nov 30 11:25:24 2001
++++ jcc.c	Fri Nov 30 11:30:30 2001
+@@ -32,9 +32,13 @@
+ #include <OS.h>		/* declarations for threads and stuff. */
+ #endif
+ 
++#ifdef HAVE_POLL
++#include <sys/poll.h>
++#else
+ #ifndef FD_ZERO
+ #include <select.h>
+ #endif
++#endif
+ 
+ #endif
+ 
+@@ -640,7 +644,26 @@
+ 
+ 	server_body = 0;
+ 
++#ifdef HAVE_POLL
++	fds[0].fd = csp->cfd;
++	fds[0].events = POLLIN|POLLHUP;
++	fds[1].fd = csp->sfd;
++	fds[1].events = POLLIN|POLLHUP;
++#endif
++
+ 	for(;;) {
++#ifdef HAVE_POLL
++		n = poll(fds, 2, -1);
++
++		if (n < 0) {
++			fprintf(logfp, "%s: poll() failed!: ", prog);
++			fperror(logfp, "");
++			return;
++		}
++
++#define IS_CLIENT()	(fds[0].revents & POLLIN)
++#define IS_SERVER()	(fds[1].revents & POLLIN)
++#else
+ 		FD_ZERO(&rfds);
+ 
+ 		FD_SET(csp->cfd, &rfds);
+@@ -653,12 +676,14 @@
+ 			fperror(logfp, "");
+ 			return;
+ 		}
+-
++#define IS_CLIENT()	FD_ISSET(csp->cfd, &rfds)
++#define IS_SERVER()	FD_ISSET(csp->sfd, &rfds)
++#endif
+ 		/* this is the body of the browser's request
+ 		 * just read it and write it.
+ 		 */
+ 
+-		if(FD_ISSET(csp->cfd, &rfds)) {
++		if(IS_CLIENT()) {
+ 
+ 			n = read_socket(csp->cfd, buf, sizeof(buf));
+ 
+@@ -679,7 +704,7 @@
+ 		 * otherwise it's the body
+ 		 */
+ 
+-		if(FD_ISSET(csp->sfd, &rfds)) {
++		if(IS_SERVER()) {
+ 
+ 			n = read_socket(csp->sfd, buf, sizeof(buf));
+ 
+--- jcc.h.orig	Fri Nov 30 11:25:24 2001
++++ jcc.h	Fri Nov 30 11:37:12 2001
+@@ -339,6 +339,7 @@
+ extern void client_cookie_adder(struct client_state *csp);
+ extern void client_xtra_adder(struct client_state *csp);
+ extern void client_x_forwarded_adder(struct client_state *csp);
++extern void server_conn_close_adder(struct client_state *csp);
+ 
+ /* interceptors from filters.c
+ */
+--- parsers.c.orig	Fri Nov 30 11:25:24 2001
++++ parsers.c	Fri Nov 30 11:30:30 2001
+@@ -32,6 +32,7 @@
+ 	{ "cookie:",		 7,	client_send_cookie	},
+ 	{ "x-forwarded-for:",	16,	client_x_forwarded	},
+ 	{ "proxy-connection:",	17,	crumble			},
++	{ "keep-alive:",	11,	crumble			},
+ /*	{ "if-modified-since:", 18,	crumble			}, */
+ 	{ NULL,			 0,	NULL			}
+ };
+@@ -57,6 +58,7 @@
+ };
+ 
+ void (*add_server_headers[])() = {
++	server_conn_close_adder,	/* for http/1.1 */
+ 	NULL
+ };
+ 
+@@ -608,6 +610,12 @@
+ 	if(csp->accept_server_cookie == 0) return(crumble(v, s, csp));
+ 
+ 	return(strdup(s));
++}
++
++void server_conn_close_adder(struct client_state *csp)
++{
++	char *p = strsav(NULL, "Connection: close");
++	enlist(csp->headers, p);
+ }
+ 
+ /* case insensitive string comparison */
+--- socks4.c.orig	Fri Nov 30 11:25:25 2001
++++ socks4.c	Fri Nov 30 11:30:31 2001
+@@ -11,6 +11,7 @@
+ 
+ 
+ #include <stdio.h>
++#include <string.h>
+ #include <sys/types.h>
+ #include <errno.h>
+ 
+@@ -112,6 +113,8 @@
+ 		strcpy(((char *)cbuf) + csiz, http->host);
+ 		csiz = n;
+ 		break;
++	default:
++		return -1; /* oops */
+ 	}
+ 
+ 	c->vn         = 4;