summaryrefslogtreecommitdiffstats
path: root/apps/s_socket.c
diff options
context:
space:
mode:
Diffstat (limited to 'apps/s_socket.c')
-rw-r--r--apps/s_socket.c684
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
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-12 09:39:41 +0000