1 files changed, 131 insertions, 0 deletions
diff --git a/tests/minitcpsrvr.c b/tests/minitcpsrvr.c
new file mode 100644
index 0000000..7d0f719
--- /dev/null
+++ b/tests/minitcpsrvr.c
@@ -0,0 +1,131 @@
+/* a very simplistic tcp receiver for the rsyslog testbench.
+ *
+ * Copyright 2016 Rainer Gerhards and Adiscon GmbH.
+ *
+ * This file is part of the rsyslog project.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *       -or-
+ *       see COPYING.ASL20 in the source distribution
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "config.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <arpa/inet.h>
+#if defined(__FreeBSD__)
+#include <netinet/in.h>
+#endif
+
+static void
+errout(char *reason)
+{
+	perror(reason);
+	exit(1);
+}
+
+static void
+usage(void)
+{
+	fprintf(stderr, "usage: minitcpsrvr -t ip-addr -p port -f outfile\n");
+	exit (1);
+}
+
+int
+main(int argc, char *argv[])
+{
+	int fds;
+	int fdc;
+	int fdf = -1;
+	struct sockaddr_in srvAddr;
+	struct sockaddr_in cliAddr;
+	unsigned int srvAddrLen;
+	unsigned int cliAddrLen;
+	char wrkBuf[4096];
+	ssize_t nRead;
+	int opt;
+	int sleeptime = 0;
+	char *targetIP = NULL;
+	int targetPort = -1;
+
+	while((opt = getopt(argc, argv, "t:p:f:s:")) != -1) {
+		switch (opt) {
+		case 's':
+			sleeptime = atoi(optarg);
+			break;
+		case 't':
+			targetIP = optarg;
+			break;
+		case 'p':
+			targetPort = atoi(optarg);
+			break;
+		case 'f':
+			if(!strcmp(optarg, "-")) {
+				fdf = 1;
+			} else {
+				fdf = open(optarg, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR|S_IWUSR);
+				if(fdf == -1) errout(argv[3]);
+			}
+			break;
+		default:
+			fprintf(stderr, "invalid option '%c' or value missing - terminating...\n", opt);
+			usage();
+			break;
+		}
+	}
+
+	if(targetIP == NULL) {
+		fprintf(stderr, "-t parameter missing -- terminating\n");
+		usage();
+	}
+	if(targetPort == -1) {
+		fprintf(stderr, "-p parameter missing -- terminating\n");
+		usage();
+	}
+	if(fdf == -1) {
+		fprintf(stderr, "-f parameter missing -- terminating\n");
+		usage();
+	}
+
+	if(sleeptime) {
+		printf("minitcpsrv: deliberate sleep of %d seconds\n", sleeptime);
+		sleep(sleeptime);
+		printf("minitcpsrv: end sleep\n");
+	}
+
+	fds = socket(AF_INET, SOCK_STREAM, 0);
+	srvAddr.sin_family = AF_INET;
+	srvAddr.sin_addr.s_addr = inet_addr(targetIP);
+	srvAddr.sin_port = htons(targetPort);
+	srvAddrLen = sizeof(srvAddr);
+	if(bind(fds, (struct sockaddr *)&srvAddr, srvAddrLen) != 0)
+		errout("bind");
+	if(listen(fds, 20) != 0) errout("listen");
+	cliAddrLen = sizeof(cliAddr);
+
+	fdc = accept(fds, (struct sockaddr *)&cliAddr, &cliAddrLen);
+	while(1) {
+		nRead = read(fdc, wrkBuf, sizeof(wrkBuf));
+		if(nRead == 0) break;
+		if(write(fdf, wrkBuf, nRead) != nRead)
+			errout("write");
+	}
+	/* let the OS do the cleanup */
+	fprintf(stderr, "minitcpsrv terminates itself\n");
+	return 0;
+}