/* values for exflag - it's used differently in msvcr90.dll*/
#define EF_UTF8 0x01
#define EF_UTF16 0x02
+#define EF_UNK_UNICODE 0x08
+
+static char utf8_bom[3] = { 0xef, 0xbb, 0xbf };
+static char utf16_bom[2] = { 0xff, 0xfe };
/* FIXME: this should be allocated dynamically */
#define MAX_FILES 2048
return ret;
}
+static int check_bom(HANDLE h, int oflags, BOOL seek)
+{
+ char bom[sizeof(utf8_bom)];
+ DWORD r;
+
+ oflags &= ~(_O_WTEXT|_O_U16TEXT|_O_U8TEXT);
+
+ if (!ReadFile(h, bom, sizeof(utf8_bom), &r, NULL))
+ return oflags;
+
+ if (r==sizeof(utf8_bom) && !memcmp(bom, utf8_bom, sizeof(utf8_bom))) {
+ oflags |= _O_U8TEXT;
+ }else if (r>=sizeof(utf16_bom) && !memcmp(bom, utf16_bom, sizeof(utf16_bom))) {
+ if (seek && r>2)
+ SetFilePointer(h, 2, NULL, FILE_BEGIN);
+ oflags |= _O_U16TEXT;
+ }else if (seek) {
+ SetFilePointer(h, 0, NULL, FILE_BEGIN);
+ }
+
+ return oflags;
+}
+
/*********************************************************************
* _sopen_s (MSVCRT.@)
*/
TRACE("fd*: %p :file (%s) oflags: 0x%04x shflags: 0x%04x pmode: 0x%04x\n",
fd, debugstr_w(path), oflags, shflags, pmode);
- if (!fd)
- {
- MSVCRT_INVALID_PMT("null out fd pointer", EINVAL);
- return EINVAL;
- }
+ if (!MSVCRT_CHECK_PMT( fd != NULL )) return EINVAL;
*fd = -1;
wxflag = split_oflags(oflags);
sa.nLength = sizeof( SECURITY_ATTRIBUTES );
sa.lpSecurityDescriptor = NULL;
- sa.bInheritHandle = (oflags & _O_NOINHERIT) ? FALSE : TRUE;
+ sa.bInheritHandle = !(oflags & _O_NOINHERIT);
- hand = CreateFileW(path, access, sharing, &sa, creation, attrib, 0);
+ if ((oflags&(_O_WTEXT|_O_U16TEXT|_O_U8TEXT))
+ && (creation==OPEN_ALWAYS || creation==OPEN_EXISTING)
+ && !(access&GENERIC_READ))
+ {
+ hand = CreateFileW(path, GENERIC_READ, FILE_SHARE_READ|FILE_SHARE_WRITE,
+ &sa, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
+ if (hand != INVALID_HANDLE_VALUE)
+ {
+ oflags = check_bom(hand, oflags, FALSE);
+ CloseHandle(hand);
+ }
+ else
+ oflags &= ~(_O_WTEXT|_O_U16TEXT|_O_U8TEXT);
+ }
+ hand = CreateFileW(path, access, sharing, &sa, creation, attrib, 0);
if (hand == INVALID_HANDLE_VALUE) {
WARN(":failed-last error (%d)\n",GetLastError());
_dosmaperr(GetLastError());
return *_errno();
}
+ if (oflags & (_O_WTEXT|_O_U16TEXT|_O_U8TEXT))
+ {
+ if ((access & GENERIC_WRITE) && (creation==CREATE_NEW
+ || creation==CREATE_ALWAYS || creation==TRUNCATE_EXISTING
+ || (creation==OPEN_ALWAYS && GetLastError()==ERROR_ALREADY_EXISTS)))
+ {
+ if (oflags & _O_U8TEXT)
+ {
+ DWORD written = 0, tmp;
+
+ while(written!=sizeof(utf8_bom) && WriteFile(hand, (char*)utf8_bom+written,
+ sizeof(utf8_bom)-written, &tmp, NULL))
+ written += tmp;
+ if (written != sizeof(utf8_bom)) {
+ WARN("error writing BOM\n");
+ CloseHandle(hand);
+ _dosmaperr(GetLastError());
+ return *_errno();
+ }
+ }
+ else
+ {
+ DWORD written = 0, tmp;
+
+ while(written!=sizeof(utf16_bom) && WriteFile(hand, (char*)utf16_bom+written,
+ sizeof(utf16_bom)-written, &tmp, NULL))
+ written += tmp;
+ if (written != sizeof(utf16_bom))
+ {
+ WARN("error writing BOM\n");
+ CloseHandle(hand);
+ _dosmaperr(GetLastError());
+ return *_errno();
+ }
+ }
+ }
+ else if (access & GENERIC_READ)
+ oflags = check_bom(hand, oflags, TRUE);
+ }
+
*fd = alloc_fd(hand, wxflag);
+ if (*fd == -1)
+ return *_errno();
+
+ if (oflags & _O_WTEXT)
+ get_ioinfo(*fd)->exflag |= EF_UTF16|EF_UNK_UNICODE;
+ else if (oflags & _O_U16TEXT)
+ get_ioinfo(*fd)->exflag |= EF_UTF16;
+ else if (oflags & _O_U8TEXT)
+ get_ioinfo(*fd)->exflag |= EF_UTF8;
TRACE(":fd (%d) handle (%p)\n", *fd, hand);
return 0;