1 #include <windows.h>
2 #include <io.h>
3 #include <errno.h>
4 #include <stdio.h>
5 #include <string.h>
6 #include <stdlib.h>
7 #include <fcntl.h>
8
9 #ifdef __CYGWIN__
10 /* For read() and write() */
11 #include <unistd.h>
12 /* Cygwin does not prototype __argc and __argv in stdlib.h */
13 extern int __argc;
14 extern char** __argv;
15 #endif
16
17 int _stdcall
WinMain(struct HINSTANCE__ * hInstance,struct HINSTANCE__ * hPrevInstance,char * lpszCmdLine,int nCmdShow)18 WinMain (struct HINSTANCE__ *hInstance,
19 struct HINSTANCE__ *hPrevInstance,
20 char *lpszCmdLine,
21 int nCmdShow)
22 {
23 if (__argc >= 2 && strcmp (__argv[1], "print_argv0") == 0)
24 {
25 printf ("%s", __argv[0]);
26 }
27 else if (__argc <= 2)
28 {
29 printf ("This is stdout\n");
30 fflush (stdout);
31
32 fprintf (stderr, "This is stderr\n");
33 fflush (stderr);
34 }
35 else if (__argc == 4 && strcmp (__argv[1], "pipes") == 0)
36 {
37 int infd = atoi (__argv[2]);
38 int outfd = atoi (__argv[3]);
39 int k, n;
40 char buf[100] = {0};
41
42 if (infd < 0 || outfd < 0)
43 {
44 printf ("spawn-test-win32-gui: illegal fds on command line %s",
45 lpszCmdLine);
46 exit (1);
47 }
48
49 n = strlen ("Hello there");
50 if (write (outfd, &n, sizeof (n)) == -1 ||
51 write (outfd, "Hello there", n) == -1)
52 {
53 int errsv = errno;
54 printf ("spawn-test-win32-gui: Write error: %s", strerror (errsv));
55 exit (1);
56 }
57
58 if ((k = read (infd, &n, sizeof (n))) != sizeof (n))
59 {
60 printf ("spawn-test-win32-gui: Got only %d bytes, wanted %d",
61 k, (int)sizeof (n));
62 exit (1);
63 }
64
65 printf ("spawn-test-win32-gui: Parent says %d bytes to read", n);
66
67 if ((k = read (infd, buf, n)) != n)
68 {
69 int errsv = errno;
70 if (k == -1)
71 printf ("spawn-test-win32-gui: Read error: %s", strerror (errsv));
72 else
73 printf ("spawn-test-win32-gui: Got only %d bytes", k);
74 exit (1);
75 }
76
77 n = strlen ("See ya");
78 if (write (outfd, &n, sizeof (n)) == -1 ||
79 write (outfd, "See ya", n) == -1)
80 {
81 int errsv = errno;
82 printf ("spawn-test-win32-gui: Write error: %s", strerror (errsv));
83 exit (1);
84 }
85 }
86
87 return 0;
88 }
89