testprogs/win32/npecho/npecho_server2.c

   1 /*
   2  * Simple Named Pipe Client
   3  * (C) 2005 Jelmer Vernooij <jelmer@samba.org>
   4  * (C) 2009 Stefan Metzmacher <metze@samba.org>
   5  * Published to the public domain
   6  */
   7
   8 #include <windows.h>
   9 #include <stdio.h>
  10
  11 #define ECHODATA "Black Dog"
  12
  13 int main(int argc, char *argv[])
  14 {
  15         HANDLE h;
  16         DWORD numread = 0;
  17         char *outbuffer = malloc(sizeof(ECHODATA));
  18         BOOL msgmode = FALSE;
  19         DWORD type = 0;
  20
  21         if (argc == 1) {
  22                 goto usage;
  23         } else if (argc >= 3) {
  24                 if (strcmp(argv[2], "byte") == 0) {
  25                         msgmode = FALSE;
  26                 } else if (strcmp(argv[2], "message") == 0) {
  27                         msgmode = TRUE;
  28                 } else {
  29                         goto usage;
  30                 }
  31         }
  32
  33         if (msgmode == TRUE) {
  34                 printf("using message mode\n");
  35                 type = PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT;
  36         } else {
  37                 printf("using byte mode\n");
  38                 type = PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | PIPE_WAIT;
  39         }
  40
  41         h = CreateNamedPipe(argv[1],
  42                             PIPE_ACCESS_DUPLEX,
  43                             type,
  44                             PIPE_UNLIMITED_INSTANCES,
  45                             1024,
  46                             1024,
  47                             0,
  48                             NULL);
  49         if (h == INVALID_HANDLE_VALUE) {
  50                 printf("Error opening: %d\n", GetLastError());
  51                 return -1;
  52         }
  53
  54         ConnectNamedPipe(h, NULL);
  55
  56         if (!WriteFile(h, ECHODATA, sizeof(ECHODATA), &numread, NULL)) {
  57                 printf("Error writing: %d\n", GetLastError());
  58                 return -1;
  59         }
  60
  61         if (!WriteFile(h, ECHODATA, sizeof(ECHODATA), &numread, NULL)) {
  62                 printf("Error writing: %d\n", GetLastError());
  63                 return -1;
  64         }
  65
  66         FlushFileBuffers(h);
  67         DisconnectNamedPipe(h);
  68         CloseHandle(h);
  69
  70         return 0;
  71 usage:
  72         printf("Usage: %s pipename [mode]\n", argv[0]);
  73         printf("  Where pipename is something like \\\\servername\\PIPE\\NPECHO\n");
  74         printf("  Where mode is 'byte' or 'message'\n");
  75         return -1;
  76 }