2 /* demos/bio/server-arg.c */
5 * A minimal program to serve an SSL connection. It uses blocking. It use the
6 * SSL_CONF API with the command line. cc -I../../include server-arg.c
7 * -L../.. -lssl -lcrypto -ldl
12 #include <openssl/err.h>
13 #include <openssl/ssl.h>
15 int main(int argc, char *argv[])
17 char *port = "*:4433";
24 char **args = argv + 1;
27 SSL_load_error_strings();
29 /* Add ciphers and message digests */
30 OpenSSL_add_ssl_algorithms();
32 ctx = SSL_CTX_new(SSLv23_server_method());
34 cctx = SSL_CONF_CTX_new();
35 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SERVER);
36 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CERTIFICATE);
37 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
38 while (*args && **args == '-') {
40 /* Parse standard arguments */
41 rv = SSL_CONF_cmd_argv(cctx, &nargs, &args);
43 fprintf(stderr, "Missing argument for %s\n", *args);
47 fprintf(stderr, "Error in command %s\n", *args);
48 ERR_print_errors_fp(stderr);
51 /* If rv > 0 we processed something so proceed to next arg */
54 /* Otherwise application specific argument processing */
55 if (!strcmp(*args, "-port")) {
58 fprintf(stderr, "Missing -port argument\n");
65 fprintf(stderr, "Unknown argument %s\n", *args);
70 if (!SSL_CONF_CTX_finish(cctx)) {
71 fprintf(stderr, "Finish error\n");
72 ERR_print_errors_fp(stderr);
77 * Demo of how to iterate over all certificates in an SSL_CTX structure.
82 rv = SSL_CTX_set_current_cert(ctx, SSL_CERT_SET_FIRST);
84 X509 *x = SSL_CTX_get0_certificate(ctx);
85 X509_NAME_print_ex_fp(stdout, X509_get_subject_name(x), 0,
88 rv = SSL_CTX_set_current_cert(ctx, SSL_CERT_SET_NEXT);
93 /* Setup server side SSL bio */
94 ssl_bio = BIO_new_ssl(ctx, 0);
96 if ((in = BIO_new_accept(port)) == NULL)
100 * This means that when a new connection is accepted on 'in', The ssl_bio
101 * will be 'duplicated' and have the new socket BIO push into it.
102 * Basically it means the SSL BIO will be automatically setup
104 BIO_set_accept_bios(in, ssl_bio);
108 * The first call will setup the accept socket, and the second will get a
109 * socket. In this loop, the first actual accept will occur in the
110 * BIO_read() function.
113 if (BIO_do_accept(in) <= 0)
117 i = BIO_read(in, buf, 512);
120 * If we have finished, remove the underlying BIO stack so the
121 * next time we call any function for this BIO, it will attempt
131 fwrite(buf, 1, i, stdout);
138 ERR_print_errors_fp(stderr);