Remove old manual.

1 files changed, 168 insertions, 0 deletions

diff --git a/doc/examples/ex-serv-srp.c b/doc/examples/ex-serv-srp.c
new file mode 100644
index 0000000000..e73baf048f
--- /dev/null
+++ b/doc/examples/ex-serv-srp.c
@@ -0,0 +1,168 @@
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <string.h>
+#include <unistd.h>
+#include <gnutls/gnutls.h>
+#include <gnutls/extra.h>
+
+#define SRP_PASSWD "tpasswd"
+#define SRP_PASSWD_CONF "tpasswd.conf"
+
+#define KEYFILE "key.pem"
+#define CERTFILE "cert.pem"
+#define CAFILE "ca.pem"
+
+/* This is a sample TLS-SRP echo server.
+ */
+
+#define SA struct sockaddr
+#define SOCKET_ERR(err,s) if(err==-1) {perror(s);return(1);}
+#define MAX_BUF 1024
+#define PORT 5556               /* listen to 5556 port */
+
+/* These are global */
+gnutls_srp_server_credentials_t srp_cred;
+gnutls_certificate_credentials_t cert_cred;
+
+gnutls_session_t initialize_tls_session()
+{
+   gnutls_session_t session;
+   const int kx_priority[] = { GNUTLS_KX_SRP, GNUTLS_KX_SRP_DSS,
+      GNUTLS_KX_SRP_RSA, 0 };
+
+   gnutls_init(&session, GNUTLS_SERVER);
+
+   gnutls_set_default_priority(session);
+   gnutls_kx_set_priority(session, kx_priority);
+
+   gnutls_credentials_set(session, GNUTLS_CRD_SRP, srp_cred);
+   /* for the certificate authenticated ciphersuites.
+    */
+   gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, cert_cred);
+
+   /* request client certificate if any.
+    */
+   gnutls_certificate_server_set_request( session, GNUTLS_CERT_IGNORE);
+
+   return session;
+}
+
+int main()
+{
+   int err, listen_sd, i;
+   int sd, ret;
+   struct sockaddr_in sa_serv;
+   struct sockaddr_in sa_cli;
+   int client_len;
+   char topbuf[512];
+   gnutls_session_t session;
+   char buffer[MAX_BUF + 1];
+   int optval = 1;
+   char name[256];
+
+   strcpy(name, "Echo Server");
+
+   /* these must be called once in the program
+    */
+   gnutls_global_init();
+   gnutls_global_init_extra(); /* for SRP */
+
+   /* SRP_PASSWD a password file (created with the included srptool utility) 
+    */
+   gnutls_srp_allocate_server_credentials(&srp_cred);
+   gnutls_srp_set_server_credentials_file(srp_cred, SRP_PASSWD, SRP_PASSWD_CONF);
+
+   gnutls_certificate_allocate_credentials(&cert_cred);
+   gnutls_certificate_set_x509_trust_file(cert_cred, CAFILE, GNUTLS_X509_FMT_PEM);
+   gnutls_certificate_set_x509_key_file(cert_cred, CERTFILE, KEYFILE,
+                                        GNUTLS_X509_FMT_PEM);
+
+   /* TCP socket operations
+    */
+   listen_sd = socket(AF_INET, SOCK_STREAM, 0);
+   SOCKET_ERR(listen_sd, "socket");
+
+   memset(&sa_serv, '\0', sizeof(sa_serv));
+   sa_serv.sin_family = AF_INET;
+   sa_serv.sin_addr.s_addr = INADDR_ANY;
+   sa_serv.sin_port = htons(PORT);  /* Server Port number */
+
+   setsockopt(listen_sd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(int));
+
+   err = bind(listen_sd, (SA *) & sa_serv, sizeof(sa_serv));
+   SOCKET_ERR(err, "bind");
+   err = listen(listen_sd, 1024);
+   SOCKET_ERR(err, "listen");
+
+   printf("%s ready. Listening to port '%d'.\n\n", name, PORT);
+
+   client_len = sizeof(sa_cli);
+   for (;;) {
+      session = initialize_tls_session();
+
+      sd = accept(listen_sd, (SA *) & sa_cli, &client_len);
+
+      printf("- connection from %s, port %d\n",
+             inet_ntop(AF_INET, &sa_cli.sin_addr, topbuf,
+                       sizeof(topbuf)), ntohs(sa_cli.sin_port));
+
+      gnutls_transport_set_ptr( session, (gnutls_transport_ptr_t)sd);
+      ret = gnutls_handshake( session);
+      if (ret < 0) {
+         close(sd);
+         gnutls_deinit(session);
+         fprintf(stderr, "*** Handshake has failed (%s)\n\n",
+                 gnutls_strerror(ret));
+         continue;
+      }
+      printf("- Handshake was completed\n");
+
+      /* print_info(session); */
+
+      i = 0;
+      for (;;) {
+         bzero(buffer, MAX_BUF + 1);
+         ret = gnutls_record_recv( session, buffer, MAX_BUF);
+
+         if (ret == 0) {
+            printf
+                ("\n- Peer has closed the GNUTLS connection\n");
+            break;
+         } else if (ret < 0) {
+            fprintf(stderr,
+                    "\n*** Received corrupted data(%d). Closing the connection.\n\n",
+                    ret);
+            break;
+         } else if (ret > 0) {
+            /* echo data back to the client
+             */
+            gnutls_record_send( session, buffer,
+                         strlen(buffer));
+         }
+      }
+      printf("\n");
+      gnutls_bye( session, GNUTLS_SHUT_WR); /* do not wait for
+                                 * the peer to close the connection.
+                                 */
+
+      close(sd);
+      gnutls_deinit(session);
+
+   }
+   close(listen_sd);
+
+   gnutls_srp_free_server_credentials(srp_cred);
+   gnutls_certificate_free_credentials(cert_cred);
+
+   gnutls_global_deinit();
+
+   return 0;
+
+}
+