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Cygwin: pty: Unify the charset conversion codes into a function.

This commit is contained in:
Takashi Yano 2019-09-18 23:29:19 +09:00 committed by Ken Brown
parent ac5357b9fe
commit 24554ab923
1 changed files with 49 additions and 81 deletions
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130
winsup/cygwin/fhandler_tty.cc
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@ -370,7 +370,43 @@ CreateProcessW_Hooked
void set_ishybrid_and_switch_to_pcon (HANDLE) {}
#endif /* USE_API_HOOK */
bool
static char *
convert_mb_str (UINT cp_to, size_t *len_to,
UINT cp_from, const char *ptr_from, size_t len_from)
{
char *buf;
size_t nlen;
if (cp_to != cp_from)
{
size_t wlen =
MultiByteToWideChar (cp_from, 0, ptr_from, len_from, NULL, 0);
wchar_t *wbuf = (wchar_t *)
HeapAlloc (GetProcessHeap (), 0, wlen * sizeof (wchar_t));
wlen =
MultiByteToWideChar (cp_from, 0, ptr_from, len_from, wbuf, wlen);
nlen = WideCharToMultiByte (cp_to, 0, wbuf, wlen, NULL, 0, NULL, NULL);
buf = (char *) HeapAlloc (GetProcessHeap (), 0, nlen);
nlen = WideCharToMultiByte (cp_to, 0, wbuf, wlen, buf, nlen, NULL, NULL);
HeapFree (GetProcessHeap (), 0, wbuf);
}
else
{
/* Just copy */
buf = (char *) HeapAlloc (GetProcessHeap (), 0, len_from);
memcpy (buf, ptr_from, len_from);
nlen = len_from;
}
*len_to = nlen;
return buf;
}
static void
mb_str_free (char *ptr)
{
HeapFree (GetProcessHeap (), 0, ptr);
}
static bool
bytes_available (DWORD& n, HANDLE h)
{
DWORD navail, nleft;
@ -1270,34 +1306,11 @@ fhandler_pty_slave::write (const void *ptr, size_t len)
reset_switch_to_pcon ();
char *buf;
ssize_t nlen;
UINT targetCodePage = get_ttyp ()->switch_to_pcon_out ?
UINT target_code_page = get_ttyp ()->switch_to_pcon_out ?
GetConsoleOutputCP () : get_ttyp ()->term_code_page;
if (targetCodePage != get_ttyp ()->term_code_page)
{
size_t wlen =
MultiByteToWideChar (get_ttyp ()->term_code_page, 0,
(char *)ptr, len, NULL, 0);
wchar_t *wbuf = (wchar_t *)
HeapAlloc (GetProcessHeap (), 0, wlen * sizeof (wchar_t));
wlen =
MultiByteToWideChar (get_ttyp ()->term_code_page, 0,
(char *)ptr, len, wbuf, wlen);
nlen = WideCharToMultiByte (targetCodePage, 0,
wbuf, wlen, NULL, 0, NULL, NULL);
buf = (char *) HeapAlloc (GetProcessHeap (), 0, nlen);
nlen = WideCharToMultiByte (targetCodePage, 0,
wbuf, wlen, buf, nlen, NULL, NULL);
HeapFree (GetProcessHeap (), 0, wbuf);
}
else
{
/* Just copy */
buf = (char *) HeapAlloc (GetProcessHeap (), 0, len);
memcpy (buf, (char *)ptr, len);
nlen = len;
}
ssize_t nlen;
char *buf = convert_mb_str (target_code_page, (size_t *) &nlen,
get_ttyp ()->term_code_page, (const char *) ptr, len);
/* If not attached to this pseudo console, try to attach temporarily. */
pid_restore = 0;
@ -1334,7 +1347,7 @@ fhandler_pty_slave::write (const void *ptr, size_t len)
towrite = -1;
}
release_output_mutex ();
HeapFree (GetProcessHeap (), 0, buf);
mb_str_free (buf);
flags = ENABLE_VIRTUAL_TERMINAL_PROCESSING;
if (get_ttyp ()->switch_to_pcon_out && !fallback)
SetConsoleMode (get_output_handle (), dwMode | flags);
@ -2260,33 +2273,10 @@ fhandler_pty_master::write (const void *ptr, size_t len)
if current application is native console application. */
if (to_be_read_from_pcon ())
{
char *buf;
size_t nlen;
char *buf = convert_mb_str
(CP_UTF8, &nlen, get_ttyp ()->term_code_page, (const char *) ptr, len);
if (get_ttyp ()->term_code_page != CP_UTF8)
{
size_t wlen =
MultiByteToWideChar (get_ttyp ()->term_code_page, 0,
(char *)ptr, len, NULL, 0);
wchar_t *wbuf = (wchar_t *)
HeapAlloc (GetProcessHeap (), 0, wlen * sizeof (wchar_t));
wlen =
MultiByteToWideChar (get_ttyp ()->term_code_page, 0,
(char *)ptr, len, wbuf, wlen);
nlen = WideCharToMultiByte (CP_UTF8, 0,
wbuf, wlen, NULL, 0, NULL, NULL);
buf = (char *) HeapAlloc (GetProcessHeap (), 0, nlen);
nlen = WideCharToMultiByte (CP_UTF8, 0,
wbuf, wlen, buf, nlen, NULL, NULL);
HeapFree (GetProcessHeap (), 0, wbuf);
}
else
{
/* Just copy */
buf = (char *) HeapAlloc (GetProcessHeap (), 0, len);
memcpy (buf, (char *)ptr, len);
nlen = len;
}
DWORD wLen;
WriteFile (to_slave, buf, nlen, &wLen, NULL);
@ -2302,7 +2292,7 @@ fhandler_pty_master::write (const void *ptr, size_t len)
else
SetEvent (input_available_event);
HeapFree (GetProcessHeap (), 0, buf);
mb_str_free (buf);
return len;
}
@ -3039,32 +3029,10 @@ fhandler_pty_master::pty_master_fwd_thread ()
}
wlen = rlen;
char *buf;
size_t nlen;
if (get_ttyp ()->term_code_page != CP_UTF8)
{
size_t wlen2 =
MultiByteToWideChar (CP_UTF8, 0,
(char *)ptr, wlen, NULL, 0);
wchar_t *wbuf = (wchar_t *)
HeapAlloc (GetProcessHeap (), 0, wlen2 * sizeof (wchar_t));
wlen2 =
MultiByteToWideChar (CP_UTF8, 0,
(char *)ptr, wlen, wbuf, wlen2);
nlen = WideCharToMultiByte (get_ttyp ()->term_code_page, 0,
wbuf, wlen2, NULL, 0, NULL, NULL);
buf = (char *) HeapAlloc (GetProcessHeap (), 0, nlen);
nlen = WideCharToMultiByte (get_ttyp ()->term_code_page, 0,
wbuf, wlen2, buf, nlen, NULL, NULL);
HeapFree (GetProcessHeap (), 0, wbuf);
}
else
{
/* Just copy */
buf = (char *) HeapAlloc (GetProcessHeap (), 0, wlen);
memcpy (buf, (char *)ptr, wlen);
nlen = wlen;
}
char *buf = convert_mb_str
(get_ttyp ()->term_code_page, &nlen, CP_UTF8, ptr, wlen);
ptr = buf;
wlen = rlen = nlen;
@ -3083,7 +3051,7 @@ fhandler_pty_master::pty_master_fwd_thread ()
wlen = (rlen -= written);
}
release_output_mutex ();
HeapFree (GetProcessHeap (), 0, buf);
mb_str_free (buf);
continue;
}
acquire_output_mutex (INFINITE);