mirror of
https://github.com/openssl/openssl.git
synced 2024-12-30 12:23:45 +08:00
666964780a
There were a dozen-plus instances of this construct:
if (0) { label: ..... }
Reviewed-by: Tim Hudson <tjh@openssl.org>
112 lines
2.4 KiB
C
112 lines
2.4 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;
|
|
goto done;
|
|
|
|
err:
|
|
if (ERR_peek_error() == 0) { /* system call error */
|
|
fprintf(stderr, "errno=%d ", errno);
|
|
perror("error");
|
|
} else
|
|
ERR_print_errors_fp(stderr);
|
|
done:
|
|
BIO_free_all(out);
|
|
SSL_CTX_free(ssl_ctx);
|
|
return (ret == 1);
|
|
}
|