ptycheck.c

#include <locale.h>
#include <io.h>
#include <stdio.h>
#include <windows.h>

#if _WIN32_WINNT < 0x0600
/* VC 7.1 or earlier doesn't support SAL. */
#if !defined(_MSC_VER) || (_MSC_VER < 1400)
#define __out
#define __in
#define __in_opt
#endif
/* Win32 FileID API Library:
 * http://www.microsoft.com/en-us/download/details.aspx?id=22599
 * Needed for WinXP. */
#include <fileextd.h>
#endif

#include "iscygpty.h"


const char *get_file_type_name(HANDLE h)
{
	int type = GetFileType(h);

	switch (type) {
	case FILE_TYPE_UNKNOWN:
		return "Unknown";
	case FILE_TYPE_DISK:
		return "Disk";
	case FILE_TYPE_CHAR:
		return "Char";
	case FILE_TYPE_PIPE:
		return "Pipe";
	}
	return "";
}

int main(int argc, char argv[])
{
	int istty[3] = {0};
	int i;

	setlocale(LC_ALL, "");

	for (i = 0; i < 3; i++) {
		istty[i] = _isatty(i);
	}
	printf("Is stdin a tty? %s\n",  istty[0] ? "yes": "no");
	printf("Is stdout a tty? %s\n", istty[1] ? "yes": "no");
	printf("Is stderr a tty? %s\n", istty[2] ? "yes": "no");
	printf("\n");

	for (i = 0; i < 3; i++) {
		HANDLE h;
		int size = sizeof(FILE_NAME_INFO) + sizeof(WCHAR) * (MAX_PATH - 1);
		FILE_NAME_INFO *nameinfo;
		const char *type;

		h = (HANDLE) _get_osfhandle(i);
		nameinfo = malloc(size + sizeof(WCHAR));
		if (nameinfo == NULL) {
			printf("Not enough memory\n");
			exit(1);
		}
		type = get_file_type_name(h);
		if (GetFileInformationByHandleEx(h, FileNameInfo, nameinfo, size)) {
			nameinfo->FileName[nameinfo->FileNameLength / sizeof(WCHAR)] = L'\0';
			printf("%d (%s): %S, is_cygpty: %d\n", i, type,
					nameinfo->FileName, is_cygpty(i));
		} else {
			printf("%d: GetFileInformationByHandleEx error: %d (%s)\n",
					i, GetLastError(), type);
		}
		free(nameinfo);
	}
	printf("\n");
	printf("Is running on mintty (or other term)? %s\n", is_cygpty_used() ? "yes" : "no");

	return 0;
}