122 lines
2.0 KiB
C
122 lines
2.0 KiB
C
/* NOCW */
|
|
/* demos/bio/sconnect.c */
|
|
|
|
/* A minimal program to do SSL to a passed host and port.
|
|
* It is actually using non-blocking IO but in a very simple manner
|
|
* sconnect host:port - it does a 'GET / HTTP/1.0'
|
|
*
|
|
* cc -I../../include sconnect.c -L../.. -lssl -lcrypto
|
|
*/
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <openssl/err.h>
|
|
#include <openssl/ssl.h>
|
|
|
|
extern int errno;
|
|
|
|
int main(argc,argv)
|
|
int argc;
|
|
char *argv[];
|
|
{
|
|
char *host;
|
|
BIO *out;
|
|
char buf[1024*10],*p;
|
|
SSL_CTX *ssl_ctx=NULL;
|
|
SSL *ssl;
|
|
BIO *ssl_bio;
|
|
int i,len,off,ret=1;
|
|
|
|
if (argc <= 1)
|
|
host="localhost:4433";
|
|
else
|
|
host=argv[1];
|
|
|
|
#ifdef WATT32
|
|
dbug_init();
|
|
sock_init();
|
|
#endif
|
|
|
|
/* Lets get nice error messages */
|
|
SSL_load_error_strings();
|
|
|
|
/* Setup all the global SSL stuff */
|
|
OpenSSL_add_ssl_algorithms();
|
|
ssl_ctx=SSL_CTX_new(SSLv23_client_method());
|
|
|
|
/* Lets make a SSL structure */
|
|
ssl=SSL_new(ssl_ctx);
|
|
SSL_set_connect_state(ssl);
|
|
|
|
/* Use it inside an SSL BIO */
|
|
ssl_bio=BIO_new(BIO_f_ssl());
|
|
BIO_set_ssl(ssl_bio,ssl,BIO_CLOSE);
|
|
|
|
/* Lets use a connect BIO under the SSL BIO */
|
|
out=BIO_new(BIO_s_connect());
|
|
BIO_set_conn_hostname(out,host);
|
|
BIO_set_nbio(out,1);
|
|
out=BIO_push(ssl_bio,out);
|
|
|
|
p="GET / HTTP/1.0\r\n\r\n";
|
|
len=strlen(p);
|
|
|
|
off=0;
|
|
for (;;)
|
|
{
|
|
i=BIO_write(out,&(p[off]),len);
|
|
if (i <= 0)
|
|
{
|
|
if (BIO_should_retry(out))
|
|
{
|
|
fprintf(stderr,"write DELAY\n");
|
|
sleep(1);
|
|
continue;
|
|
}
|
|
else
|
|
{
|
|
goto err;
|
|
}
|
|
}
|
|
off+=i;
|
|
len-=i;
|
|
if (len <= 0) break;
|
|
}
|
|
|
|
for (;;)
|
|
{
|
|
i=BIO_read(out,buf,sizeof(buf));
|
|
if (i == 0) break;
|
|
if (i < 0)
|
|
{
|
|
if (BIO_should_retry(out))
|
|
{
|
|
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(out);
|
|
if (ssl_ctx != NULL) SSL_CTX_free(ssl_ctx);
|
|
exit(!ret);
|
|
return(ret);
|
|
}
|
|
|