121 lines
3.1 KiB
C
121 lines
3.1 KiB
C
|
#include <openssl/err.h>
|
||
|
|
#include <openssl/ssl.h>
|
||
|
|
#include <openssl/conf.h>
|
||
|
|
|
||
|
|
int main(int argc, char **argv)
|
||
|
|
{
|
||
|
|
BIO *sbio = NULL, *out = NULL;
|
||
|
|
int i, len, rv;
|
||
|
|
char tmpbuf[1024];
|
||
|
|
SSL_CTX *ctx = NULL;
|
||
|
|
SSL_CONF_CTX *cctx = NULL;
|
||
|
|
SSL *ssl = NULL;
|
||
|
|
CONF *conf = NULL;
|
||
|
|
STACK_OF(CONF_VALUE) *sect = NULL;
|
||
|
|
CONF_VALUE *cnf;
|
||
|
|
const char *connect_str = "localhost:4433";
|
||
|
|
long errline = -1;
|
||
|
|
|
||
|
|
ERR_load_crypto_strings();
|
||
|
|
ERR_load_SSL_strings();
|
||
|
|
SSL_library_init();
|
||
|
|
|
||
|
|
conf = NCONF_new(NULL);
|
||
|
|
|
||
|
|
if (NCONF_load(conf, "connect.cnf", &errline) <= 0) {
|
||
|
|
if (errline <= 0)
|
||
|
|
fprintf(stderr, "Error processing config file\n");
|
||
|
|
else
|
||
|
|
fprintf(stderr, "Error on line %ld\n", errline);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
sect = NCONF_get_section(conf, "default");
|
||
|
|
|
||
|
|
if (sect == NULL) {
|
||
|
|
fprintf(stderr, "Error retrieving default section\n");
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
ctx = SSL_CTX_new(SSLv23_client_method());
|
||
|
|
cctx = SSL_CONF_CTX_new();
|
||
|
|
SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT);
|
||
|
|
SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_FILE);
|
||
|
|
SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
|
||
|
|
for (i = 0; i < sk_CONF_VALUE_num(sect); i++) {
|
||
|
|
cnf = sk_CONF_VALUE_value(sect, i);
|
||
|
|
rv = SSL_CONF_cmd(cctx, cnf->name, cnf->value);
|
||
|
|
if (rv > 0)
|
||
|
|
continue;
|
||
|
|
if (rv != -2) {
|
||
|
|
fprintf(stderr, "Error processing %s = %s\n",
|
||
|
|
cnf->name, cnf->value);
|
||
|
|
ERR_print_errors_fp(stderr);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
if (!strcmp(cnf->name, "Connect")) {
|
||
|
|
connect_str = cnf->value;
|
||
|
|
} else {
|
||
|
|
fprintf(stderr, "Unknown configuration option %s\n", cnf->name);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!SSL_CONF_CTX_finish(cctx)) {
|
||
|
|
fprintf(stderr, "Finish error\n");
|
||
|
|
ERR_print_errors_fp(stderr);
|
||
|
|
goto err;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* We'd normally set some stuff like the verify paths and * mode here
|
||
|
|
* because as things stand this will connect to * any server whose
|
||
|
|
* certificate is signed by any CA.
|
||
|
|
*/
|
||
|
|
|
||
|
|
sbio = BIO_new_ssl_connect(ctx);
|
||
|
|
|
||
|
|
BIO_get_ssl(sbio, &ssl);
|
||
|
|
|
||
|
|
if (!ssl) {
|
||
|
|
fprintf(stderr, "Can't locate SSL pointer\n");
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Don't want any retries */
|
||
|
|
SSL_set_mode(ssl, SSL_MODE_AUTO_RETRY);
|
||
|
|
|
||
|
|
/* We might want to do other things with ssl here */
|
||
|
|
|
||
|
|
BIO_set_conn_hostname(sbio, connect_str);
|
||
|
|
|
||
|
|
out = BIO_new_fp(stdout, BIO_NOCLOSE);
|
||
|
|
if (BIO_do_connect(sbio) <= 0) {
|
||
|
|
fprintf(stderr, "Error connecting to server\n");
|
||
|
|
ERR_print_errors_fp(stderr);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (BIO_do_handshake(sbio) <= 0) {
|
||
|
|
fprintf(stderr, "Error establishing SSL connection\n");
|
||
|
|
ERR_print_errors_fp(stderr);
|
||
|
|
goto end;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Could examine ssl here to get connection info */
|
||
|
|
|
||
|
|
BIO_puts(sbio, "GET / HTTP/1.0\n\n");
|
||
|
|
for (;;) {
|
||
|
|
len = BIO_read(sbio, tmpbuf, 1024);
|
||
|
|
if (len <= 0)
|
||
|
|
break;
|
||
|
|
BIO_write(out, tmpbuf, len);
|
||
|
|
}
|
||
|
|
end:
|
||
|
|
SSL_CONF_CTX_free(cctx);
|
||
|
|
BIO_free_all(sbio);
|
||
|
|
BIO_free(out);
|
||
|
|
NCONF_free(conf);
|
||
|
|
return 0;
|
||
|
|
}
|