| /** |
| * This file has no copyright assigned and is placed in the Public Domain. |
| * This file is part of the mingw-w64 runtime package. |
| * No warranty is given; refer to the file DISCLAIMER.PD within this package. |
| */ |
| #ifndef WIN32_LEAN_AND_MEAN |
| #define WIN32_LEAN_AND_MEAN |
| #endif |
| #include "mb_wc_common.h" |
| #include <wchar.h> |
| #include <stdlib.h> |
| #include <errno.h> |
| #include <limits.h> |
| #include <windows.h> |
| |
| __attribute__((noinline)) |
| static int __MINGW_ATTRIB_NONNULL(1) |
| __wcrtomb_cp (char *dst, wchar_t wc, const unsigned int cp, |
| const unsigned int mb_max) |
| { |
| if (cp == 0) |
| { |
| if (wc > 255) |
| { |
| errno = EILSEQ; |
| return -1; |
| } |
| *dst = (char) wc; |
| return 1; |
| } |
| else |
| { |
| int invalid_char = 0; |
| |
| int size = WideCharToMultiByte (cp, 0 /* Is this correct flag? */, |
| &wc, 1, dst, mb_max, |
| NULL, &invalid_char); |
| if (size == 0 || invalid_char) |
| { |
| errno = EILSEQ; |
| return -1; |
| } |
| return size; |
| } |
| } |
| |
| size_t |
| wcrtomb (char *dst, wchar_t wc, mbstate_t * __UNUSED_PARAM (ps)) |
| { |
| char byte_bucket [MB_LEN_MAX]; |
| char* tmp_dst = dst ? dst : &byte_bucket[0]; |
| return (size_t)__wcrtomb_cp (tmp_dst, wc, ___lc_codepage_func(), |
| MB_CUR_MAX); |
| } |
| |
| size_t wcsrtombs (char *dst, const wchar_t **src, size_t len, |
| mbstate_t * __UNUSED_PARAM (ps)) |
| { |
| int ret = 0; |
| size_t n = 0; |
| const unsigned int cp = ___lc_codepage_func(); |
| const unsigned int mb_max = MB_CUR_MAX; |
| const wchar_t *pwc = *src; |
| |
| if (src == NULL || *src == NULL) /* undefined behavior */ |
| return 0; |
| |
| if (dst != NULL) |
| { |
| while (n < len) |
| { |
| if ((ret = __wcrtomb_cp (dst, *pwc, cp, mb_max)) <= 0) |
| return (size_t) -1; |
| n += ret; |
| dst += ret; |
| if (*(dst - 1) == '\0') |
| { |
| *src = (wchar_t *) NULL; |
| return (n - 1); |
| } |
| pwc++; |
| } |
| *src = pwc; |
| } |
| else |
| { |
| char byte_bucket [MB_LEN_MAX]; |
| while (n < len) |
| { |
| if ((ret = __wcrtomb_cp (&byte_bucket[0], *pwc, cp, mb_max)) <= 0) |
| return (size_t) -1; |
| n += ret; |
| if (byte_bucket [ret - 1] == '\0') |
| return (n - 1); |
| pwc++; |
| } |
| } |
| |
| return n; |
| } |