mirror of
https://github.com/openssl/openssl.git
synced 2024-11-27 05:21:51 +08:00
106 lines
1.6 KiB
C
106 lines
1.6 KiB
C
/* NOCW */
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/* demos/eay/conn.c */
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/* A minimal program to connect to a port using the sock4a protocol.
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*
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* cc -I../../include conn.c -L../.. -lcrypto
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <openssl/err.h>
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#include <openssl/bio.h>
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/* #include "proxy.h" */
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extern int errno;
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int main(argc,argv)
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int argc;
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char *argv[];
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{
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PROXY *pxy;
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char *host;
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char buf[1024*10],*p;
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BIO *bio;
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int i,len,off,ret=1;
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if (argc <= 1)
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host="localhost:4433";
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else
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host=argv[1];
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/* Lets get nice error messages */
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ERR_load_crypto_strings();
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/* First, configure proxy settings */
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pxy=PROXY_new();
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PROXY_add_server(pxy,PROXY_PROTOCOL_SOCKS,"gromit:1080");
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bio=BIO_new(BIO_s_socks4a_connect());
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BIO_set_conn_hostname(bio,host);
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BIO_set_proxies(bio,pxy);
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BIO_set_socks_userid(bio,"eay");
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BIO_set_nbio(bio,1);
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p="GET / HTTP/1.0\r\n\r\n";
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len=strlen(p);
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off=0;
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for (;;)
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{
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i=BIO_write(bio,&(p[off]),len);
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if (i <= 0)
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{
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if (BIO_should_retry(bio))
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{
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fprintf(stderr,"write DELAY\n");
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sleep(1);
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continue;
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}
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else
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{
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goto err;
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}
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}
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off+=i;
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len-=i;
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if (len <= 0) break;
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}
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for (;;)
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{
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i=BIO_read(bio,buf,sizeof(buf));
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if (i == 0) break;
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if (i < 0)
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{
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if (BIO_should_retry(bio))
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{
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fprintf(stderr,"read DELAY\n");
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sleep(1);
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continue;
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}
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goto err;
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}
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fwrite(buf,1,i,stdout);
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}
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ret=1;
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if (0)
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{
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err:
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if (ERR_peek_error() == 0) /* system call error */
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{
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fprintf(stderr,"errno=%d ",errno);
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perror("error");
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}
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else
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ERR_print_errors_fp(stderr);
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}
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BIO_free_all(bio);
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if (pxy != NULL) PROXY_free(pxy);
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exit(!ret);
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return(ret);
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}
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