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/*
* $Id: sslTunnel.c,v 1.2 2002-10-23 10:33:25 cvs Exp $
*/
#include <unistd.h>
#include <openssl/ssl.h>
#include <openssl/err.h>
#include <get_user.h>
#include <string.h>
typedef struct {
int sock;
SSL *ssl_con;
} sslPair;
static sslPair *sslPairArray;
static int qLen = 0; /* number of elements in the memory*/
static int set_SSL_map(int, SSL *);
static SSL* get_SSL_map(int);
static int initialized;
ssize_t eRead(int fd, void *buff, size_t len)
{
SSL *ssl_con;
ssl_con = get_SSL_map(fd);
return ssl_con == NULL ? -1 : SSL_read(ssl_con, buff, len);
}
ssize_t eWrite(int fd,const void *buff, size_t len)
{
SSL *ssl_con;
ssl_con = get_SSL_map(fd);
return ssl_con == NULL ? -1 : SSL_write(ssl_con, buff, len);
}
int eInit(int fd)
{
SSL *ssl_con;
int ret;
SSL_CTX *ssl_ctx;
user_entry *en;
if(!initialized) {
SSL_library_init();
SSLeay_add_ssl_algorithms();
SSL_load_error_strings();
++initialized;
}
ssl_ctx = SSL_CTX_new(TLSv1_client_method());
ssl_con = (SSL *) SSL_new(ssl_ctx);
ret = SSL_set_fd(ssl_con, fd);
SSL_set_connect_state(ssl_con);
ret = SSL_connect(ssl_con);
ret = SSL_get_error(ssl_con, ret);
if(ret != SSL_ERROR_NONE) {
switch (ret) {
case SSL_ERROR_NONE :
printf("SSL_ERROR_NONE.\n");
break;
case SSL_ERROR_SSL :
printf("SSL_ERROR_SSL.\n");
break;
case SSL_ERROR_WANT_READ:
printf("SSL_ERROR_WANT_READ.\n");
break;
case SSL_ERROR_WANT_WRITE:
printf("SSL_ERROR_WANT_WRITE.\n");
break;
case SSL_ERROR_WANT_X509_LOOKUP :
printf("SSL_ERROR_WANT_X509_LOOKUP.\n");
break;
case SSL_ERROR_SYSCALL:
printf("SSL_ERROR_SYSCALL.\n");
break;
case SSL_ERROR_ZERO_RETURN :
printf("SSL_ERROR_ZERO_RETURN.\n");
break;
case SSL_ERROR_WANT_CONNECT :
printf("SSL_ERROR_WANT_CONNECT.\n");
break;
default:
printf("Unknow error.\n");
}
ERR_print_errors_fp(stderr);
return -1;
}
set_SSL_map(fd, ssl_con);
en = getUserEntry();
SSL_write(ssl_con, "Auth Protocol V#1.0 auth=" , 25);
SSL_write(ssl_con, en->login , strlen(en->login));
SSL_write(ssl_con, ":" , 1);
SSL_write(ssl_con, en->passwd , strlen(en->passwd));
SSL_write(ssl_con, "\n" , 1);
clear_entry(en);
return 0;
}
int eDestroy(int fd)
{
return 0;
}
static
int set_SSL_map(int sock, SSL *ssl_con)
{
sslPair * tmp;
tmp = realloc(sslPairArray, sizeof(sslPair)*(qLen +1));
if(tmp == NULL) {
return -1;
}
sslPairArray = tmp;
sslPairArray[qLen].sock = sock;
sslPairArray[qLen].ssl_con = ssl_con;
++qLen;
return 0;
}
static
SSL * get_SSL_map(int sock)
{
register unsigned int i;
sslPair * tmp;
SSL *ssl_con;
for(i = 0; i < qLen; i++) {
if(sslPairArray[i].sock == sock) {
return sslPairArray[i].ssl_con;
/*
ssl_con = sslPairArray[i].ssl_con;
tmp = malloc(sizeof(sslPair)*(qLen - 1));
if(tmp == NULL) {
debug(ERROR, "Failed to allocate memory.");
return ssl_con;
}
memcpy(tmp, sslPairArray, sizeof(sslPair)*i);
memcpy(&tmp[i], &sslPairArray[i+1], sizeof(sslPair)*(qLen -i -1));
free(sslPairArray);
sslPairArray = tmp;
--qLen;
return ssl_con;
*/
}
}
return NULL;
}
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