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