#ifdef _WIN32
#include <ctype.h>
#include <io.h>
#include <wchar.h>
#include <windows.h>
#ifdef USE_FILEEXTD
# if !defined(_MSC_VER) || (_MSC_VER < 1400)
# define __out
# define __in
# define __in_opt
# endif
# include <fileextd.h>
#else // USE_FILEEXTD
# if defined(_MSC_VER) && (_MSC_VER < 1500)
# ifdef ENABLE_STUB_IMPL
# define STUB_IMPL
# else
# error "Win32 FileID API Library is required for VC2005 or earlier."
# endif
# endif
#endif // USE_FILEEXTD
#include "iscygpty.h"
#ifdef USE_DYNFILEID
typedef BOOL (WINAPI *pfnGetFileInformationByHandleEx)(
HANDLE hFile,
FILE_INFO_BY_HANDLE_CLASS FileInformationClass,
LPVOID lpFileInformation,
DWORD dwBufferSize);
static pfnGetFileInformationByHandleEx pGetFileInformationByHandleEx = NULL;
# ifndef USE_FILEEXTD
static BOOL WINAPI stub_GetFileInformationByHandleEx(
HANDLE hFile,
FILE_INFO_BY_HANDLE_CLASS FileInformationClass,
LPVOID lpFileInformation,
DWORD dwBufferSize)
{
return FALSE;
}
# endif
static void setup_fileid_api(void)
{
if (pGetFileInformationByHandleEx != NULL) {
return;
}
pGetFileInformationByHandleEx = (pfnGetFileInformationByHandleEx)
GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")),
"GetFileInformationByHandleEx");
if (pGetFileInformationByHandleEx == NULL) {
# ifdef USE_FILEEXTD
pGetFileInformationByHandleEx = GetFileInformationByHandleEx;
# else
pGetFileInformationByHandleEx = stub_GetFileInformationByHandleEx;
# endif
}
}
#else
# define pGetFileInformationByHandleEx GetFileInformationByHandleEx
# define setup_fileid_api()
#endif
#define is_wprefix(s, prefix) \
(wcsncmp((s), (prefix), sizeof(prefix) / sizeof(WCHAR) - 1) == 0)
int is_cygpty(int fd)
{
#ifdef STUB_IMPL
return 0;
#else
HANDLE h;
int size = sizeof(FILE_NAME_INFO) + sizeof(WCHAR) * (MAX_PATH - 1);
FILE_NAME_INFO *nameinfo;
WCHAR *p = NULL;
setup_fileid_api();
h = (HANDLE) _get_osfhandle(fd);
if (h == INVALID_HANDLE_VALUE) {
return 0;
}
if (GetFileType(h) != FILE_TYPE_PIPE) {
return 0;
}
nameinfo = malloc(size + sizeof(WCHAR));
if (nameinfo == NULL) {
return 0;
}
if (pGetFileInformationByHandleEx(h, FileNameInfo, nameinfo, size)) {
nameinfo->FileName[nameinfo->FileNameLength / sizeof(WCHAR)] = L'\0';
p = nameinfo->FileName;
if (is_wprefix(p, L"\\cygwin-")) { p += 8;
} else if (is_wprefix(p, L"\\msys-")) { p += 6;
} else {
p = NULL;
}
if (p != NULL) {
while (*p && isxdigit(*p)) ++p;
if (is_wprefix(p, L"-pty")) {
p += 4;
} else {
p = NULL;
}
}
if (p != NULL) {
while (*p && isdigit(*p)) ++p;
if (is_wprefix(p, L"-from-master")) {
} else if (is_wprefix(p, L"-to-master")) {
} else {
p = NULL;
}
}
}
free(nameinfo);
return (p != NULL);
#endif // STUB_IMPL
}
int is_cygpty_used(void)
{
int fd, ret = 0;
for (fd = 0; fd < 3; fd++) {
ret |= is_cygpty(fd);
}
return ret;
}
#endif // _WIN32