Import of old SSLeay release: SSLeay 0.8.1b

1 files changed, 684 insertions, 0 deletions

diff --git a/apps/s_socket.c b/apps/s_socket.c
new file mode 100644
index 0000000000..810061e29f
--- /dev/null
+++ b/apps/s_socket.c
@@ -0,0 +1,684 @@
+/* apps/s_socket.c */
+/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ * 
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ * 
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from 
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * 
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <signal.h>
+#define USE_SOCKETS
+#define NON_MAIN
+#include "apps.h"
+#undef USE_SOCKETS
+#undef NON_MAIN
+#include "s_apps.h"
+#include "ssl.h"
+
+#ifndef NOPROTO
+static struct hostent *GetHostByName(char *name);
+int sock_init(void );
+#else
+static struct hostent *GetHostByName();
+int sock_init();
+#endif
+
+#ifdef WIN16
+#define SOCKET_PROTOCOL	0 /* more microsoft stupidity */
+#else
+#define SOCKET_PROTOCOL	IPPROTO_TCP
+#endif
+
+#ifdef WINDOWS
+static struct WSAData wsa_state;
+static int wsa_init_done=0;
+
+#ifdef WIN16
+static HWND topWnd=0;
+static FARPROC lpTopWndProc=NULL;
+static FARPROC lpTopHookProc=NULL;
+extern HINSTANCE _hInstance;  /* nice global CRT provides */
+
+static LONG FAR PASCAL topHookProc(hwnd,message,wParam,lParam)
+HWND hwnd;
+UINT message;
+WPARAM wParam;
+LPARAM lParam;
+	{
+	if (hwnd == topWnd)
+		{
+		switch(message)
+			{
+		case WM_DESTROY:
+		case WM_CLOSE:
+			SetWindowLong(topWnd,GWL_WNDPROC,(LONG)lpTopWndProc);
+			sock_cleanup();
+			break;
+			}
+		}
+	return CallWindowProc(lpTopWndProc,hwnd,message,wParam,lParam);
+	}
+
+static BOOL CALLBACK enumproc(HWND hwnd,LPARAM lParam)
+	{
+	topWnd=hwnd;
+	return(FALSE);
+	}
+
+#endif /* WIN32 */
+#endif /* WINDOWS */
+
+void sock_cleanup()
+	{
+#ifdef WINDOWS
+	if (wsa_init_done)
+		{
+		wsa_init_done=0;
+		WSACancelBlockingCall();
+		WSACleanup();
+		}
+#endif
+	}
+
+int sock_init()
+	{
+#ifdef WINDOWS
+	if (!wsa_init_done)
+		{
+		int err;
+	  
+#ifdef SIGINT
+		signal(SIGINT,(void (*)(int))sock_cleanup);
+#endif
+		wsa_init_done=1;
+		memset(&wsa_state,0,sizeof(wsa_state));
+		if (WSAStartup(0x0101,&wsa_state)!=0)
+			{
+			err=WSAGetLastError();
+			BIO_printf(bio_err,"unable to start WINSOCK, error code=%d\n",err);
+			return(0);
+			}
+
+#ifdef WIN16
+		EnumTaskWindows(GetCurrentTask(),enumproc,0L);
+		lpTopWndProc=(FARPROC)GetWindowLong(topWnd,GWL_WNDPROC);
+		lpTopHookProc=MakeProcInstance((FARPROC)topHookProc,_hInstance);
+
+		SetWindowLong(topWnd,GWL_WNDPROC,(LONG)lpTopHookProc);
+#endif /* WIN16 */
+		}
+#endif /* WINDOWS */
+	return(1);
+	}
+
+int init_client(sock, host, port)
+int *sock;
+char *host;
+int port;
+	{
+	unsigned char ip[4];
+	short p=0;
+
+	if (!host_ip(host,&(ip[0])))
+		{
+		return(0);
+		}
+	if (p != 0) port=p;
+	return(init_client_ip(sock,ip,port));
+	}
+
+int init_client_ip(sock, ip, port)
+int *sock;
+unsigned char ip[4];
+int port;
+	{
+	unsigned long addr;
+	struct sockaddr_in them;
+	int s,i;
+
+	if (!sock_init()) return(0);
+
+	memset((char *)&them,0,sizeof(them));
+	them.sin_family=AF_INET;
+	them.sin_port=htons((unsigned short)port);
+	addr=(unsigned long)
+		((unsigned long)ip[0]<<24L)|
+		((unsigned long)ip[1]<<16L)|
+		((unsigned long)ip[2]<< 8L)|
+		((unsigned long)ip[3]);
+	them.sin_addr.s_addr=htonl(addr);
+
+	s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
+	if (s == INVALID_SOCKET) { perror("socket"); return(0); }
+
+	i=0;
+	i=setsockopt(s,SOL_SOCKET,SO_KEEPALIVE,(char *)&i,sizeof(i));
+	if (i < 0) { perror("keepalive"); return(0); }
+
+	if (connect(s,(struct sockaddr *)&them,sizeof(them)) == -1)
+		{ close(s); perror("connect"); return(0); }
+	*sock=s;
+	return(1);
+	}
+
+int nbio_sock_error(sock)
+int sock;
+	{
+	int j,i,size;
+
+	size=sizeof(int);
+	i=getsockopt(sock,SOL_SOCKET,SO_ERROR,(char *)&j,&size);
+	if (i < 0)
+		return(1);
+	else
+		return(j);
+	}
+
+int nbio_init_client_ip(sock, ip, port)
+int *sock;
+unsigned char ip[4];
+int port;
+	{
+	unsigned long addr;
+	struct sockaddr_in them;
+	int s,i;
+
+	if (!sock_init()) return(0);
+
+	memset((char *)&them,0,sizeof(them));
+	them.sin_family=AF_INET;
+	them.sin_port=htons((unsigned short)port);
+	addr=	(unsigned long)
+		((unsigned long)ip[0]<<24L)|
+		((unsigned long)ip[1]<<16L)|
+		((unsigned long)ip[2]<< 8L)|
+		((unsigned long)ip[3]);
+	them.sin_addr.s_addr=htonl(addr);
+
+	if (*sock <= 0)
+		{
+		unsigned long l=1;
+
+		s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
+		if (s == INVALID_SOCKET) { perror("socket"); return(0); }
+
+		i=0;
+		i=setsockopt(s,SOL_SOCKET,SO_KEEPALIVE,(char *)&i,sizeof(i));
+		if (i < 0) { perror("keepalive"); return(0); }
+		*sock=s;
+
+#ifdef FIONBIO
+		socket_ioctl(s,FIONBIO,&l);
+#endif
+		}
+	else
+		s= *sock;
+
+	i=connect(s,(struct sockaddr *)&them,sizeof(them));
+	if (i == INVALID_SOCKET)
+		{
+		if (BIO_sock_should_retry(i))
+			return(-1);
+		else
+			return(0);
+		}
+	else
+		return(1);
+	}
+
+int do_server(port, ret, cb)
+int port;
+int *ret;
+int (*cb)();
+	{
+	int sock;
+	char *name;
+	int accept_socket;
+	int i;
+
+	if (!init_server(&accept_socket,port)) return(0);
+
+	if (ret != NULL)
+		{
+		*ret=accept_socket;
+		/* return(1);*/
+		}
+	for (;;)
+		{
+		if (do_accept(accept_socket,&sock,&name) == 0)
+			{
+			SHUTDOWN(accept_socket);
+			return(0);
+			}
+		i=(*cb)(name,sock);
+		if (name != NULL) Free(name);
+		SHUTDOWN(sock);
+		if (i < 0)
+			{
+			SHUTDOWN(accept_socket);
+			return(i);
+			}
+		}
+	}
+
+int init_server(sock, port)
+int *sock;
+int port;
+	{
+	int ret=0;
+	struct sockaddr_in server;
+	int s= -1,i;
+
+	if (!sock_init()) return(0);
+
+	memset((char *)&server,0,sizeof(server));
+	server.sin_family=AF_INET;
+	server.sin_port=htons((unsigned short)port);
+	server.sin_addr.s_addr=INADDR_ANY;
+	s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
+
+	if (s == INVALID_SOCKET) goto err;
+	if (bind(s,(struct sockaddr *)&server,sizeof(server)) == -1)
+		{
+#ifndef WINDOWS
+		perror("bind");
+#endif
+		goto err;
+		}
+	if (listen(s,5) == -1) goto err;
+	i=0;
+	*sock=s;
+	ret=1;
+err:
+	if ((ret == 0) && (s != -1))
+		{
+		SHUTDOWN(s);
+		}
+	return(ret);
+	}
+
+int do_accept(acc_sock, sock, host)
+int acc_sock;
+int *sock;
+char **host;
+	{
+	int ret,i;
+	struct hostent *h1,*h2;
+	static struct sockaddr_in from;
+	int len;
+/*	struct linger ling; */
+
+	if (!sock_init()) return(0);
+
+#ifndef WINDOWS
+redoit:
+#endif
+
+	memset((char *)&from,0,sizeof(from));
+	len=sizeof(from);
+	ret=accept(acc_sock,(struct sockaddr *)&from,&len);
+	if (ret == INVALID_SOCKET)
+		{
+#ifdef WINDOWS
+		i=WSAGetLastError();
+		BIO_printf(bio_err,"accept error %d\n",i);
+#else
+		if (errno == EINTR)
+			{
+			/*check_timeout(); */
+			goto redoit;
+			}
+		fprintf(stderr,"errno=%d ",errno);
+		perror("accept");
+#endif
+		return(0);
+		}
+
+/*
+	ling.l_onoff=1;
+	ling.l_linger=0;
+	i=setsockopt(ret,SOL_SOCKET,SO_LINGER,(char *)&ling,sizeof(ling));
+	if (i < 0) { perror("linger"); return(0); }
+	i=0;
+	i=setsockopt(ret,SOL_SOCKET,SO_KEEPALIVE,(char *)&i,sizeof(i));
+	if (i < 0) { perror("keepalive"); return(0); }
+*/
+
+	if (host == NULL) goto end;
+	/* I should use WSAAsyncGetHostByName() under windows */
+	h1=gethostbyaddr((char *)&from.sin_addr.s_addr,
+		sizeof(from.sin_addr.s_addr),AF_INET);
+	if (h1 == NULL)
+		{
+		BIO_printf(bio_err,"bad gethostbyaddr\n");
+		*host=NULL;
+		/* return(0); */
+		}
+	else
+		{
+		if ((*host=(char *)Malloc(strlen(h1->h_name)+1)) == NULL)
+			{
+			perror("Malloc");
+			return(0);
+			}
+		strcpy(*host,h1->h_name);
+
+		h2=GetHostByName(*host);
+		if (h2 == NULL)
+			{
+			BIO_printf(bio_err,"gethostbyname failure\n");
+			return(0);
+			}
+		i=0;
+		if (h2->h_addrtype != AF_INET)
+			{
+			BIO_printf(bio_err,"gethostbyname addr is not AF_INET\n");
+			return(0);
+			}
+		}
+end:
+	*sock=ret;
+	return(1);
+	}
+
+int socket_ioctl(fd,type,arg)
+int fd;
+long type;
+unsigned long *arg;
+	{
+	int i,err;
+#ifdef WINDOWS
+	i=ioctlsocket(fd,type,arg);
+#else
+	i=ioctl(fd,type,arg);
+#endif
+	if (i < 0)
+		{
+#ifdef WINDOWS
+		err=WSAGetLastError();
+#else
+		err=errno;
+#endif
+		BIO_printf(bio_err,"ioctl on socket failed:error %d\n",err);
+		}
+	return(i);
+	}
+
+int sock_err()
+	{
+#ifdef WINDOWS
+	return(WSAGetLastError());
+#else
+	return(errno);
+#endif
+	}
+
+int extract_host_port(str,host_ptr,ip,port_ptr)
+char *str;
+char **host_ptr;
+unsigned char *ip;
+short *port_ptr;
+	{
+	char *h,*p;
+
+	h=str;
+	p=strchr(str,':');
+	if (p == NULL)
+		{
+		BIO_printf(bio_err,"no port defined\n");
+		return(0);
+		}
+	*(p++)='\0';
+
+	if ((ip != NULL) && !host_ip(str,ip))
+		goto err;
+	if (host_ptr != NULL) *host_ptr=h;
+
+	if (!extract_port(p,port_ptr))
+		goto err;
+	return(1);
+err:
+	return(0);
+	}
+
+int host_ip(str,ip)
+char *str;
+unsigned char ip[4];
+	{
+	unsigned int in[4]; 
+	int i;
+
+	if (sscanf(str,"%d.%d.%d.%d",&(in[0]),&(in[1]),&(in[2]),&(in[3])) == 4)
+		{
+		for (i=0; i<4; i++)
+			if (in[i] > 255)
+				{
+				BIO_printf(bio_err,"invalid IP address\n");
+				goto err;
+				}
+		ip[0]=in[0];
+		ip[1]=in[1];
+		ip[2]=in[2];
+		ip[3]=in[3];
+		}
+	else
+		{ /* do a gethostbyname */
+		struct hostent *he;
+
+		if (!sock_init()) return(0);
+
+		he=GetHostByName(str);
+		if (he == NULL)
+			{
+			BIO_printf(bio_err,"gethostbyname failure\n");
+			goto err;
+			}
+		/* cast to short because of win16 winsock definition */
+		if ((short)he->h_addrtype != AF_INET)
+			{
+			BIO_printf(bio_err,"gethostbyname addr is not AF_INET\n");
+			return(0);
+			}
+		ip[0]=he->h_addr_list[0][0];
+		ip[1]=he->h_addr_list[0][1];
+		ip[2]=he->h_addr_list[0][2];
+		ip[3]=he->h_addr_list[0][3];
+		}
+	return(1);
+err:
+	return(0);
+	}
+
+int extract_port(str,port_ptr)
+char *str;
+short *port_ptr;
+	{
+	int i;
+	struct servent *s;
+
+	i=atoi(str);
+	if (i != 0)
+		*port_ptr=(unsigned short)i;
+	else
+		{
+		s=getservbyname(str,"tcp");
+		if (s == NULL)
+			{
+			BIO_printf(bio_err,"getservbyname failure for %s\n",str);
+			return(0);
+			}
+		*port_ptr=ntohs((unsigned short)s->s_port);
+		}
+	return(1);
+	}
+
+#define GHBN_NUM	4
+static struct ghbn_cache_st
+	{
+	char name[128];
+	struct hostent ent;
+	unsigned long order;
+	} ghbn_cache[GHBN_NUM];
+
+static unsigned long ghbn_hits=0L;
+static unsigned long ghbn_miss=0L;
+
+static struct hostent *GetHostByName(name)
+char *name;
+	{
+	struct hostent *ret;
+	int i,lowi=0;
+	unsigned long low= (unsigned long)-1;
+
+	for (i=0; i<GHBN_NUM; i++)
+		{
+		if (low > ghbn_cache[i].order)
+			{
+			low=ghbn_cache[i].order;
+			lowi=i;
+			}
+		if (ghbn_cache[i].order > 0)
+			{
+			if (strncmp(name,ghbn_cache[i].name,128) == 0)
+				break;
+			}
+		}
+	if (i == GHBN_NUM) /* no hit*/
+		{
+		ghbn_miss++;
+		ret=gethostbyname(name);
+		if (ret == NULL) return(NULL);
+		/* else add to cache */
+		strncpy(ghbn_cache[lowi].name,name,128);
+		memcpy((char *)&(ghbn_cache[lowi].ent),ret,sizeof(struct hostent));
+		ghbn_cache[lowi].order=ghbn_miss+ghbn_hits;
+		return(ret);
+		}
+	else
+		{
+		ghbn_hits++;
+		ret= &(ghbn_cache[i].ent);
+		ghbn_cache[i].order=ghbn_miss+ghbn_hits;
+		return(ret);
+		}
+	}
+
+#ifndef MSDOS
+int spawn(argc, argv, in, out)
+int argc;
+char **argv;
+int *in;
+int *out;
+	{
+	int pid;
+#define CHILD_READ	p1[0]
+#define CHILD_WRITE	p2[1]
+#define PARENT_READ	p2[0]
+#define PARENT_WRITE	p1[1]
+	int p1[2],p2[2];
+
+	if ((pipe(p1) < 0) || (pipe(p2) < 0)) return(-1);
+
+	if ((pid=fork()) == 0)
+		{ /* child */
+		if (dup2(CHILD_WRITE,fileno(stdout)) < 0)
+			perror("dup2");
+		if (dup2(CHILD_WRITE,fileno(stderr)) < 0)
+			perror("dup2");
+		if (dup2(CHILD_READ,fileno(stdin)) < 0)
+			perror("dup2");
+		close(CHILD_READ); 
+		close(CHILD_WRITE);
+
+		close(PARENT_READ);
+		close(PARENT_WRITE);
+		execvp(argv[0],argv);
+		perror("child");
+		exit(1);
+		}
+
+	/* parent */
+	*in= PARENT_READ;
+	*out=PARENT_WRITE;
+	close(CHILD_READ);
+	close(CHILD_WRITE);
+	return(pid);
+	}
+#endif /* MSDOS */
+
+
+#ifdef undef
+	/* Turn on synchronous sockets so that we can do a WaitForMultipleObjects
+	 * on sockets */
+	{
+	SOCKET s;
+	int optionValue = SO_SYNCHRONOUS_NONALERT;
+	int err;
+
+	err = setsockopt( 
+	    INVALID_SOCKET, 
+	    SOL_SOCKET, 
+	    SO_OPENTYPE, 
+	    (char *)&optionValue, 
+	    sizeof(optionValue));
+	if (err != NO_ERROR) {
+	/* failed for some reason... */
+		BIO_printf(bio_err, "failed to setsockopt(SO_OPENTYPE, SO_SYNCHRONOUS_ALERT) - %d\n",
+			WSAGetLastError());
+		}
+	}
+#endif