#1694557: first skeleton of a plugin for small services (discard, echo, chargen)

SRC/contrib/small-services/Makefile.am

@@ -0,0 +1,5 @@
+pkglib_LTLIBRARIES = smallservices.la
+smallservices_la_SOURCES = small-services.c
+smallservices_la_LDFLAGS = -module
+
+

SRC/contrib/small-services/README

@@ -0,0 +1,10 @@
+small-services is an echoping plugin which implements the following
+network services: 
+
+* echo (RFC 862)
+* discard (RFC 863)
+* chargen (RFC 864)
+
+As of today (2007-12-21), these services are in the main echoping tree
+but the idea is to move them to this plugin in the future. See
+echoping Feature Request #1694557 at Sourceforge.

SRC/contrib/small-services/configure.ac

@@ -0,0 +1,9 @@
+dnl $Id: configure.ac 377 2007-03-12 20:48:05Z bortz $
+
+AC_INIT(small-services, 0.0-BETA)
+AC_PROG_CC(cc gcc)
+AC_PROG_LIBTOOL
+AM_INIT_AUTOMAKE(foreign)
+AC_CONFIG_HEADERS(config.h)
+
+AC_OUTPUT(Makefile)

SRC/contrib/small-services/small-services.c

@@ -0,0 +1,60 @@
+/*
+ *
+ * $Id: daytime.c 395 2007-04-04 19:26:19Z bortz $
+ */
+
+#define IN_PLUGIN
+#include <echoping/echoping.h>
+
+struct addrinfo smallservices_server;
+int             sockfd;
+echoping_options options;
+
+char           *
+init(const int argc, const char **argv, echoping_options global_options)
+{
+	options = global_options;
+	/* TODO: the service returned must depend on the options */
+	return "echo";
+}
+
+void
+start(struct addrinfo *res)
+{
+	smallservices_server = *res;
+}
+
+int
+execute()
+{
+	int             nr;
+#define MAX 256
+#define TEST_STRING "test"
+	char            result[MAX];
+	if ((sockfd =
+	     socket(smallservices_server.ai_family, smallservices_server.ai_socktype,
+		    smallservices_server.ai_protocol)) < 0)
+		err_sys("Can't open socket");
+	if (connect
+	    (sockfd, smallservices_server.ai_addr,
+	     smallservices_server.ai_addrlen) < 0)
+		err_sys("Can't connect to server");
+	if (write(sockfd, TEST_STRING, strlen(TEST_STRING)) != strlen(TEST_STRING))
+		err_sys("Cannot write");
+	nr = read(sockfd, result, strlen(TEST_STRING));
+	if (nr != strlen(TEST_STRING))
+		err_sys("Cannot read (only %i bytes)", nr);	/* TODO: the server
+								 * may send the
+								 * result in chunks, 
+								 * we should loop */
+	if (strcmp(result, TEST_STRING) != 0)
+		err_sys("Result \"%s\" is different from test string \"%s\"",
+			result, TEST_STRING);
+	close(sockfd);
+	return 1;
+}
+
+void
+terminate()
+{
+}