wmi-1.3.16 from opsview.com

Samba/testprogs/win32/npecho/npecho_client.c

@@ -0,0 +1,50 @@
+/*
+ * Simple Named Pipe Client
+ * (C) 2005 Jelmer Vernooij <jelmer@samba.org>
+ * Published to the public domain
+ */
+
+#include <windows.h>
+#include <stdio.h>
+
+#define ECHODATA "Black Dog"
+
+int main(int argc, char *argv[])
+{
+	HANDLE h;
+	DWORD numread = 0;
+	char *outbuffer = malloc(strlen(ECHODATA));
+
+	if (argc == 1) {
+		printf("Usage: %s pipename\n", argv[0]);
+		printf("  Where pipename is something like \\\\servername\\NPECHO\n");
+		return -1;
+	}
+
+	h = CreateFile(argv[1], GENERIC_READ|GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
+	if (h == INVALID_HANDLE_VALUE) {
+		printf("Error opening: %d\n", GetLastError());
+		return -1;
+	}
+
+	if (!WriteFile(h, ECHODATA, strlen(ECHODATA), &numread, NULL)) {
+		printf("Error writing: %d\n", GetLastError());
+		return -1;
+	}
+
+	if (!ReadFile(h, outbuffer, strlen(ECHODATA), &numread, NULL)) {
+		printf("Error reading: %d\n", GetLastError());
+		return -1;
+	}
+
+	printf("Read: %s\n", outbuffer);
+	
+	if (!TransactNamedPipe(h, ECHODATA, strlen(ECHODATA), outbuffer, strlen(ECHODATA), &numread, NULL)) {
+		printf("TransactNamedPipe failed: %d!\n", GetLastError());
+		return -1;
+	}
+
+	printf("Result: %s\n", outbuffer);
+
+	return 0;
+}