Viewing file:  conn.c (1.62 KB) -rw-r--r--
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/* NOCW */
/* demos/eay/conn.c */
/* A minimal program to connect to a port using the sock4a protocol.
*
* cc -I../../include conn.c -L../.. -lcrypto
*/
#include <stdio.h>
#include <stdlib.h>
#include <openssl/err.h>
#include <openssl/bio.h>
/* #include "proxy.h" */
extern int errno;
int main(argc,argv)
int argc;
char *argv[];
{
PROXY *pxy;
char *host;
char buf[1024*10],*p;
BIO *bio;
int i,len,off,ret=1;
if (argc <= 1)
host="localhost:4433";
else
host=argv[1];
/* Lets get nice error messages */
ERR_load_crypto_strings();
/* First, configure proxy settings */
pxy=PROXY_new();
PROXY_add_server(pxy,PROXY_PROTOCOL_SOCKS,"gromit:1080");
bio=BIO_new(BIO_s_socks4a_connect());
BIO_set_conn_hostname(bio,host);
BIO_set_proxies(bio,pxy);
BIO_set_socks_userid(bio,"eay");
BIO_set_nbio(bio,1);
p="GET / HTTP/1.0\r\n\r\n";
len=strlen(p);
off=0;
for (;;)
{
i=BIO_write(bio,&(p[off]),len);
if (i <= 0)
{
if (BIO_should_retry(bio))
{
fprintf(stderr,"write DELAY\n");
sleep(1);
continue;
}
else
{
goto err;
}
}
off+=i;
len-=i;
if (len <= 0) break;
}
for (;;)
{
i=BIO_read(bio,buf,sizeof(buf));
if (i == 0) break;
if (i < 0)
{
if (BIO_should_retry(bio))
{
fprintf(stderr,"read DELAY\n");
sleep(1);
continue;
}
goto err;
}
fwrite(buf,1,i,stdout);
}
ret=1;
if (0)
{
err:
if (ERR_peek_error() == 0) /* system call error */
{
fprintf(stderr,"errno=%d ",errno);
perror("error");
}
else
ERR_print_errors_fp(stderr);
}
BIO_free_all(bio);
if (pxy != NULL) PROXY_free(pxy);
exit(!ret);
return(ret);
}
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