--- /dev/null
+/* apps/s_socket.c - socket-related functions used by s_client and s_server */
+/* Copyright (C) 1995-1998 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>
+
+#ifdef FLAT_INC
+#include "e_os2.h"
+#else
+#include "../e_os2.h"
+#endif
+
+/* With IPv6, it looks like Digital has mixed up the proper order of
+ recursive header file inclusion, resulting in the compiler complaining
+ that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
+ is needed to have fileno() declared correctly... So let's define u_int */
+#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
+#define __U_INT
+typedef unsigned int u_int;
+#endif
+
+#define USE_SOCKETS
+#define NON_MAIN
+#include "apps.h"
+#undef USE_SOCKETS
+#undef NON_MAIN
+#include "s_apps.h"
+#include <openssl/ssl.h>
+
+#ifdef FLAT_INC
+#include "e_os.h"
+#else
+#include "../e_os.h"
+#endif
+
+#ifndef OPENSSL_NO_SOCK
+
+#if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_BSDSOCK)
+#include "netdb.h"
+#endif
+
+static struct hostent *GetHostByName(char *name);
+#if defined(OPENSSL_SYS_WINDOWS) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK))
+static void ssl_sock_cleanup(void);
+#endif
+static int ssl_sock_init(void);
+static int init_client_ip(int *sock,unsigned char ip[4], int port, int type);
+static int init_server(int *sock, int port, int type);
+static int init_server_long(int *sock, int port,char *ip, int type);
+static int do_accept(int acc_sock, int *sock, char **host);
+static int host_ip(char *str, unsigned char ip[4]);
+
+#ifdef OPENSSL_SYS_WIN16
+#define SOCKET_PROTOCOL 0 /* more microsoft stupidity */
+#else
+#define SOCKET_PROTOCOL IPPROTO_TCP
+#endif
+
+#if defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
+static int wsa_init_done=0;
+#endif
+
+#ifdef OPENSSL_SYS_WINDOWS
+static struct WSAData wsa_state;
+static int wsa_init_done=0;
+
+#ifdef OPENSSL_SYS_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 hwnd, UINT message, WPARAM wParam,
+ LPARAM lParam)
+ {
+ if (hwnd == topWnd)
+ {
+ switch(message)
+ {
+ case WM_DESTROY:
+ case WM_CLOSE:
+ SetWindowLong(topWnd,GWL_WNDPROC,(LONG)lpTopWndProc);
+ ssl_sock_cleanup();
+ break;
+ }
+ }
+ return CallWindowProc(lpTopWndProc,hwnd,message,wParam,lParam);
+ }
+
+static BOOL CALLBACK enumproc(HWND hwnd,LPARAM lParam)
+ {
+ topWnd=hwnd;
+ return(FALSE);
+ }
+
+#endif /* OPENSSL_SYS_WIN32 */
+#endif /* OPENSSL_SYS_WINDOWS */
+
+#ifdef OPENSSL_SYS_WINDOWS
+static void ssl_sock_cleanup(void)
+ {
+ if (wsa_init_done)
+ {
+ wsa_init_done=0;
+#ifndef OPENSSL_SYS_WINCE
+ WSACancelBlockingCall();
+#endif
+ WSACleanup();
+ }
+ }
+#elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
+static void sock_cleanup(void)
+ {
+ if (wsa_init_done)
+ {
+ wsa_init_done=0;
+ WSACleanup();
+ }
+ }
+#endif
+
+static int ssl_sock_init(void)
+ {
+#ifdef WATT32
+ extern int _watt_do_exit;
+ _watt_do_exit = 0;
+ if (sock_init())
+ return (0);
+#elif defined(OPENSSL_SYS_WINDOWS)
+ if (!wsa_init_done)
+ {
+ int err;
+
+#ifdef SIGINT
+ signal(SIGINT,(void (*)(int))ssl_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 OPENSSL_SYS_WIN16
+ EnumTaskWindows(GetCurrentTask(),enumproc,0L);
+ lpTopWndProc=(FARPROC)GetWindowLong(topWnd,GWL_WNDPROC);
+ lpTopHookProc=MakeProcInstance((FARPROC)topHookProc,_hInstance);
+
+ SetWindowLong(topWnd,GWL_WNDPROC,(LONG)lpTopHookProc);
+#endif /* OPENSSL_SYS_WIN16 */
+ }
+#elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)
+ WORD wVerReq;
+ WSADATA wsaData;
+ int err;
+
+ if (!wsa_init_done)
+ {
+
+# ifdef SIGINT
+ signal(SIGINT,(void (*)(int))sock_cleanup);
+# endif
+
+ wsa_init_done=1;
+ wVerReq = MAKEWORD( 2, 0 );
+ err = WSAStartup(wVerReq,&wsaData);
+ if (err != 0)
+ {
+ BIO_printf(bio_err,"unable to start WINSOCK2, error code=%d\n",err);
+ return(0);
+ }
+ }
+#endif /* OPENSSL_SYS_WINDOWS */
+ return(1);
+ }
+
+int init_client(int *sock, char *host, int port, int type)
+ {
+ unsigned char ip[4];
+
+ memset(ip, '\0', sizeof ip);
+ if (!host_ip(host,&(ip[0])))
+ return 0;
+ return init_client_ip(sock,ip,port,type);
+ }
+
+static int init_client_ip(int *sock, unsigned char ip[4], int port, int type)
+ {
+ unsigned long addr;
+ struct sockaddr_in them;
+ int s,i;
+
+ if (!ssl_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 (type == SOCK_STREAM)
+ s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
+ else /* ( type == SOCK_DGRAM) */
+ s=socket(AF_INET,SOCK_DGRAM,IPPROTO_UDP);
+
+ if (s == INVALID_SOCKET) { perror("socket"); return(0); }
+
+#if defined(SO_KEEPALIVE) && !defined(OPENSSL_SYS_MPE)
+ if (type == SOCK_STREAM)
+ {
+ i=0;
+ i=setsockopt(s,SOL_SOCKET,SO_KEEPALIVE,(char *)&i,sizeof(i));
+ if (i < 0) { closesocket(s); perror("keepalive"); return(0); }
+ }
+#endif
+
+ if (connect(s,(struct sockaddr *)&them,sizeof(them)) == -1)
+ { closesocket(s); perror("connect"); return(0); }
+ *sock=s;
+ return(1);
+ }
+
+int do_server(int port, int type, int *ret, int (*cb)(char *hostname, int s, unsigned char *context), unsigned char *context)
+ {
+ int sock;
+ char *name = NULL;
+ int accept_socket = 0;
+ int i;
+
+ if (!init_server(&accept_socket,port,type)) return(0);
+
+ if (ret != NULL)
+ {
+ *ret=accept_socket;
+ /* return(1);*/
+ }
+ for (;;)
+ {
+ if (type==SOCK_STREAM)
+ {
+ if (do_accept(accept_socket,&sock,&name) == 0)
+ {
+ SHUTDOWN(accept_socket);
+ return(0);
+ }
+ }
+ else
+ sock = accept_socket;
+ i=(*cb)(name,sock, context);
+ if (name != NULL) OPENSSL_free(name);
+ if (type==SOCK_STREAM)
+ SHUTDOWN2(sock);
+ if (i < 0)
+ {
+ SHUTDOWN2(accept_socket);
+ return(i);
+ }
+ }
+ }
+
+static int init_server_long(int *sock, int port, char *ip, int type)
+ {
+ int ret=0;
+ struct sockaddr_in server;
+ int s= -1;
+
+ if (!ssl_sock_init()) return(0);
+
+ memset((char *)&server,0,sizeof(server));
+ server.sin_family=AF_INET;
+ server.sin_port=htons((unsigned short)port);
+ if (ip == NULL)
+ server.sin_addr.s_addr=INADDR_ANY;
+ else
+/* Added for T3E, address-of fails on bit field (beckman@acl.lanl.gov) */
+#ifndef BIT_FIELD_LIMITS
+ memcpy(&server.sin_addr.s_addr,ip,4);
+#else
+ memcpy(&server.sin_addr,ip,4);
+#endif
+
+ if (type == SOCK_STREAM)
+ s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
+ else /* type == SOCK_DGRAM */
+ s=socket(AF_INET, SOCK_DGRAM,IPPROTO_UDP);
+
+ if (s == INVALID_SOCKET) goto err;
+#if defined SOL_SOCKET && defined SO_REUSEADDR
+ {
+ int j = 1;
+ setsockopt(s, SOL_SOCKET, SO_REUSEADDR,
+ (void *) &j, sizeof j);
+ }
+#endif
+ if (bind(s,(struct sockaddr *)&server,sizeof(server)) == -1)
+ {
+#ifndef OPENSSL_SYS_WINDOWS
+ perror("bind");
+#endif
+ goto err;
+ }
+ /* Make it 128 for linux */
+ if (type==SOCK_STREAM && listen(s,128) == -1) goto err;
+ *sock=s;
+ ret=1;
+err:
+ if ((ret == 0) && (s != -1))
+ {
+ SHUTDOWN(s);
+ }
+ return(ret);
+ }
+
+static int init_server(int *sock, int port, int type)
+ {
+ return(init_server_long(sock, port, NULL, type));
+ }
+
+static int do_accept(int acc_sock, int *sock, char **host)
+ {
+ int ret;
+ struct hostent *h1,*h2;
+ static struct sockaddr_in from;
+ int len;
+/* struct linger ling; */
+
+ if (!ssl_sock_init()) return(0);
+
+#ifndef OPENSSL_SYS_WINDOWS
+redoit:
+#endif
+
+ memset((char *)&from,0,sizeof(from));
+ len=sizeof(from);
+ /* Note: under VMS with SOCKETSHR the fourth parameter is currently
+ * of type (int *) whereas under other systems it is (void *) if
+ * you don't have a cast it will choke the compiler: if you do
+ * have a cast then you can either go for (int *) or (void *).
+ */
+ ret=accept(acc_sock,(struct sockaddr *)&from,(void *)&len);
+ if (ret == INVALID_SOCKET)
+ {
+#if defined(OPENSSL_SYS_WINDOWS) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK))
+ int i;
+ 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;
+#ifndef BIT_FIELD_LIMITS
+ /* I should use WSAAsyncGetHostByName() under windows */
+ h1=gethostbyaddr((char *)&from.sin_addr.s_addr,
+ sizeof(from.sin_addr.s_addr),AF_INET);
+#else
+ h1=gethostbyaddr((char *)&from.sin_addr,
+ sizeof(struct in_addr),AF_INET);
+#endif
+ if (h1 == NULL)
+ {
+ BIO_printf(bio_err,"bad gethostbyaddr\n");
+ *host=NULL;
+ /* return(0); */
+ }
+ else
+ {
+ if ((*host=(char *)OPENSSL_malloc(strlen(h1->h_name)+1)) == NULL)
+ {
+ perror("OPENSSL_malloc");
+ closesocket(ret);
+ return(0);
+ }
+ BUF_strlcpy(*host,h1->h_name,strlen(h1->h_name)+1);
+
+ h2=GetHostByName(*host);
+ if (h2 == NULL)
+ {
+ BIO_printf(bio_err,"gethostbyname failure\n");
+ closesocket(ret);
+ return(0);
+ }
+ if (h2->h_addrtype != AF_INET)
+ {
+ BIO_printf(bio_err,"gethostbyname addr is not AF_INET\n");
+ closesocket(ret);
+ return(0);
+ }
+ }
+end:
+ *sock=ret;
+ return(1);
+ }
+
+int extract_host_port(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);
+ }
+
+static int host_ip(char *str, unsigned char ip[4])
+ {
+ unsigned int in[4];
+ int i;
+
+ if (sscanf(str,"%u.%u.%u.%u",&(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 (!ssl_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(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(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 */
+ if(strlen(name) < sizeof ghbn_cache[0].name)
+ {
+ strcpy(ghbn_cache[lowi].name,name);
+ 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);
+ }
+ }
+
+#endif
projects / cassiopeia.git / blobdiff