diff options
Diffstat (limited to 'iconv/gconv_simple.c')
| -rw-r--r-- | iconv/gconv_simple.c | 59 |
1 files changed, 57 insertions, 2 deletions
diff --git a/iconv/gconv_simple.c b/iconv/gconv_simple.c index 31e7970..89c0384 100644 --- a/iconv/gconv_simple.c +++ b/iconv/gconv_simple.c @@ -105,6 +105,61 @@ internal_ucs4_loop (const unsigned char **inptrp, const unsigned char *inend, #include <iconv/skeleton.c> +/* Similarly for the other byte order. */ +#define DEFINE_INIT 0 +#define DEFINE_FINI 0 +#define MIN_NEEDED_FROM 4 +#define MIN_NEEDED_TO 4 +#define FROM_DIRECTION 1 +#define FROM_LOOP internal_ucs4le_loop +#define TO_LOOP internal_ucs4le_loop /* This is not used. */ +#define FUNCTION_NAME __gconv_transform_internal_ucs4le + + +static inline int +internal_ucs4le_loop (const unsigned char **inptrp, const unsigned char *inend, + unsigned char **outptrp, unsigned char *outend, + mbstate_t *state, void *data, size_t *converted) +{ + const unsigned char *inptr = *inptrp; + unsigned char *outptr = *outptrp; + size_t n_convert = MIN (inend - inptr, outend - outptr) / 4; + int result; + +#if __BYTE_ORDER == __BIG_ENDIAN + /* Sigh, we have to do some real work. */ + size_t cnt; + + for (cnt = 0; cnt < n_convert; ++cnt, inptr += 4) + *((uint32_t *) outptr)++ = bswap_32 (*(uint32_t *) inptr); + + *inptrp = inptr; + *outptrp = outptr; +#elif __BYTE_ORDER == __LITTLE_ENDIAN + /* Simply copy the data. */ + *inptrp = inptr + n_convert * 4; + *outptrp = __mempcpy (outptr, inptr, n_convert * 4); +#else +# error "This endianess is not supported." +#endif + + /* Determine the status. */ + if (*outptrp == outend) + result = __GCONV_FULL_OUTPUT; + else if (*inptrp == inend) + result = __GCONV_EMPTY_INPUT; + else + result = __GCONV_INCOMPLETE_INPUT; + + if (converted != NULL) + converted += n_convert; + + return result; +} + +#include <iconv/skeleton.c> + + /* Convert from ISO 646-IRV to the internal (UCS4-like) format. */ #define DEFINE_INIT 0 #define DEFINE_FINI 0 @@ -408,7 +463,7 @@ internal_ucs4_loop (const unsigned char **inptrp, const unsigned char *inend, #define FROM_DIRECTION 1 #define FROM_LOOP ucs2little_internal_loop #define TO_LOOP ucs2little_internal_loop /* This is not used.*/ -#define FUNCTION_NAME __gconv_transform_ucs2little_internal +#define FUNCTION_NAME __gconv_transform_ucs2reverse_internal #define MIN_NEEDED_INPUT MIN_NEEDED_FROM #define MIN_NEEDED_OUTPUT MIN_NEEDED_TO @@ -433,7 +488,7 @@ internal_ucs4_loop (const unsigned char **inptrp, const unsigned char *inend, #define FROM_DIRECTION 1 #define FROM_LOOP internal_ucs2little_loop #define TO_LOOP internal_ucs2little_loop /* This is not used.*/ -#define FUNCTION_NAME __gconv_transform_internal_ucs2little +#define FUNCTION_NAME __gconv_transform_internal_ucs2reverse #define MIN_NEEDED_INPUT MIN_NEEDED_FROM #define MIN_NEEDED_OUTPUT MIN_NEEDED_TO |