int p_unlink(const char *path)
{
git_win32_path buf;
git_win32_path_from_c(buf, path);
_wchmod(buf, 0666);
return _wunlink(buf);
}
static int winhttp_connect(
winhttp_subtransport *t,
const char *url)
{
wchar_t *ua = L"git/1.0 (libgit2 " WIDEN(LIBGIT2_VERSION) L")";
git_win32_path host;
int32_t port;
const char *default_port = "80";
/* Prepare port */
if (git__strtol32(&port, t->connection_data.port, NULL, 10) < 0)
return -1;
/* Prepare host */
git_win32_path_from_c(host, t->connection_data.host);
/* Establish session */
t->session = WinHttpOpen(
ua,
WINHTTP_ACCESS_TYPE_DEFAULT_PROXY,
WINHTTP_NO_PROXY_NAME,
WINHTTP_NO_PROXY_BYPASS,
0);
if (!t->session) {
giterr_set(GITERR_OS, QT_TRANSLATE_NOOP("libgit2", "Failed to init WinHTTP"));
return -1;
}
/* Establish connection */
t->connection = WinHttpConnect(
t->session,
host,
(INTERNET_PORT) port,
0);
if (!t->connection) {
giterr_set(GITERR_OS, QT_TRANSLATE_NOOP("libgit2", "Failed to connect to host"));
return -1;
}
return 0;
}
static int do_lstat(
const char *file_name, struct stat *buf, int posix_enotdir)
{
WIN32_FILE_ATTRIBUTE_DATA fdata;
git_win32_path fbuf;
wchar_t lastch;
int flen;
flen = git_win32_path_from_c(fbuf, file_name);
/* truncate trailing slashes */
for (; flen > 0; --flen) {
lastch = fbuf[flen - 1];
if (WIN32_IS_WSEP(lastch))
fbuf[flen - 1] = L'\0';
else if (lastch != L'\0')
break;
}
if (GetFileAttributesExW(fbuf, GetFileExInfoStandard, &fdata)) {
int fMode = S_IREAD;
if (!buf)
return 0;
if (fdata.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
fMode |= S_IFDIR;
else
fMode |= S_IFREG;
if (!(fdata.dwFileAttributes & FILE_ATTRIBUTE_READONLY))
fMode |= S_IWRITE;
if (fdata.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)
fMode |= S_IFLNK;
if ((fMode & (S_IFDIR | S_IFLNK)) == (S_IFDIR | S_IFLNK)) // junction
fMode ^= S_IFLNK;
buf->st_ino = 0;
buf->st_gid = 0;
buf->st_uid = 0;
buf->st_nlink = 1;
buf->st_mode = (mode_t)fMode;
buf->st_size = ((git_off_t)fdata.nFileSizeHigh << 32) + fdata.nFileSizeLow;
buf->st_dev = buf->st_rdev = (_getdrive() - 1);
buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime));
buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime));
buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime));
/* Windows symlinks have zero file size, call readlink to determine
* the length of the path pointed to, which we expect everywhere else
*/
if (S_ISLNK(fMode)) {
git_win32_path_as_utf8 target;
int readlink_result;
readlink_result = p_readlink(file_name, target, sizeof(target));
if (readlink_result == -1)
return -1;
buf->st_size = strlen(target);
}
return 0;
}
errno = ENOENT;
/* We need POSIX behavior, then ENOTDIR must set when any of the folders in the
* file path is a regular file,otherwise ENOENT must be set.
*/
if (posix_enotdir) {
/* scan up path until we find an existing item */
while (1) {
/* remove last directory component */
for (--flen; flen > 0 && !WIN32_IS_WSEP(fbuf[flen]); --flen);
if (flen <= 0)
break;
fbuf[flen] = L'\0';
if (GetFileAttributesExW(fbuf, GetFileExInfoStandard, &fdata)) {
if (!(fdata.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
errno = ENOTDIR;
break;
}
}
}
return -1;
}
/*
* Parts of the The p_readlink function are heavily inspired by the php
* readlink function in link_win32.c
*
* Copyright (c) 1999 - 2012 The PHP Group. All rights reserved.
*
* For details of the PHP license see http://www.php.net/license/3_01.txt
*/
int p_readlink(const char *link, char *target, size_t target_len)
{
typedef DWORD (WINAPI *fpath_func)(HANDLE, LPWSTR, DWORD, DWORD);
static fpath_func pGetFinalPath = NULL;
HANDLE hFile;
DWORD dwRet;
git_win32_path link_w;
wchar_t* target_w;
int error = 0;
assert(link && target && target_len > 0);
/*
* Try to load the pointer to pGetFinalPath dynamically, because
* it is not available in platforms older than Vista
*/
if (pGetFinalPath == NULL) {
HMODULE module = GetModuleHandle("kernel32");
if (module != NULL)
pGetFinalPath = (fpath_func)GetProcAddress(module, "GetFinalPathNameByHandleW");
if (pGetFinalPath == NULL) {
giterr_set(GITERR_OS,
"'GetFinalPathNameByHandleW' is not available in this platform");
return -1;
}
}
git_win32_path_from_c(link_w, link);
hFile = CreateFileW(link_w, // file to open
GENERIC_READ, // open for reading
FILE_SHARE_READ, // share for reading
NULL, // default security
OPEN_EXISTING, // existing file only
FILE_FLAG_BACKUP_SEMANTICS, // normal file
NULL); // no attr. template
if (hFile == INVALID_HANDLE_VALUE) {
giterr_set(GITERR_OS, "Cannot open '%s' for reading", link);
return -1;
}
target_w = (wchar_t*)git__malloc(target_len * sizeof(wchar_t));
GITERR_CHECK_ALLOC(target_w);
dwRet = pGetFinalPath(hFile, target_w, (DWORD)target_len, 0x0);
if (dwRet == 0 ||
dwRet >= target_len ||
!WideCharToMultiByte(CP_UTF8, 0, target_w, -1, target,
(int)(target_len * sizeof(char)), NULL, NULL))
error = -1;
git__free(target_w);
CloseHandle(hFile);
if (error)
return error;
/* Skip first 4 characters if they are "\\?\" */
if (dwRet > 4 &&
target[0] == '\\' && target[1] == '\\' &&
target[2] == '?' && target[3] == '\\')
{
unsigned int offset = 4;
dwRet -= 4;
/* \??\UNC\ */
if (dwRet > 7 &&
target[4] == 'U' && target[5] == 'N' && target[6] == 'C')
{
offset += 2;
dwRet -= 2;
target[offset] = '\\';
}
memmove(target, target + offset, dwRet);
}
target[dwRet] = '\0';
return dwRet;
}
