Imported OpenSSL 1.1.1a

demos/bio/sconnect.c

@@ -0,0 +1,129 @@
+/*
+ * Copyright 1998-2017 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/*-
+ * 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 <string.h>
+#include <errno.h>
+#include <openssl/err.h>
+#include <openssl/ssl.h>
+
+#define HOSTPORT "localhost:4433"
+#define CAFILE "root.pem"
+
+int main(int argc, char *argv[])
+{
+    const char *hostport = HOSTPORT;
+    const char *CAfile = CAFILE;
+    char *hostname;
+    char *cp;
+    BIO *out = NULL;
+    char buf[1024 * 10], *p;
+    SSL_CTX *ssl_ctx = NULL;
+    SSL *ssl;
+    BIO *ssl_bio;
+    int i, len, off, ret = EXIT_FAILURE;
+
+    if (argc > 1)
+        hostport = argv[1];
+    if (argc > 2)
+        CAfile = argv[2];
+
+    hostname = OPENSSL_strdup(hostport);
+    if ((cp = strchr(hostname, ':')) != NULL)
+        *cp = 0;
+
+#ifdef WATT32
+    dbug_init();
+    sock_init();
+#endif
+
+    ssl_ctx = SSL_CTX_new(TLS_client_method());
+
+    /* Enable trust chain verification */
+    SSL_CTX_set_verify(ssl_ctx, SSL_VERIFY_PEER, NULL);
+    SSL_CTX_load_verify_locations(ssl_ctx, CAfile, NULL);
+
+    /* Lets make a SSL structure */
+    ssl = SSL_new(ssl_ctx);
+    SSL_set_connect_state(ssl);
+
+    /* Enable peername verification */
+    if (SSL_set1_host(ssl, hostname) <= 0)
+        goto err;
+
+    /* 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, hostport);
+    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 = EXIT_SUCCESS;
+    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;
+}