diff options
Diffstat (limited to 'iconv/gconv_simple.c')
| -rw-r--r-- | iconv/gconv_simple.c | 36 |
1 files changed, 27 insertions, 9 deletions
diff --git a/iconv/gconv_simple.c b/iconv/gconv_simple.c index 91a347b058..582c6f5a27 100644 --- a/iconv/gconv_simple.c +++ b/iconv/gconv_simple.c @@ -123,14 +123,23 @@ __gconv_transform_ucs4_utf8 (struct gconv_step *step, data->outbufsize - data->outbufavail, (mbstate_t *) data->data); - /* Status so far. */ - result = GCONV_EMPTY_INPUT; - /* Remember how much we converted. */ do_write += newinbuf - inbuf; *inlen -= (newinbuf - inbuf) * sizeof (wchar_t); data->outbufavail += actually; + + if (data->is_last) + { + /* This is the last step. */ + result = (*inlen < sizeof (wchar_t) + ? GCONV_EMPTY_INPUT : GCONV_FULL_OUTPUT); + break; + } + + /* Status so far. */ + result = GCONV_EMPTY_INPUT; + if (data->outbufavail > 0) { /* Call the functions below in the chain. */ @@ -140,7 +149,7 @@ __gconv_transform_ucs4_utf8 (struct gconv_step *step, written, 0); /* Correct the output buffer. */ - if (newavail != data->outbufavail) + if (newavail != data->outbufavail && newavail > 0) { memmove (data->outbuf, &data->outbuf[data->outbufavail - newavail], @@ -204,14 +213,23 @@ __gconv_transform_utf8_ucs4 (struct gconv_step *step, / sizeof (wchar_t)), (mbstate_t *) data->data); - /* Status so far. */ - result = GCONV_EMPTY_INPUT; - /* Remember how much we converted. */ do_write += actually; *inlen -= newinbuf - inbuf; data->outbufavail += actually * sizeof (wchar_t); + + if (data->is_last) + { + /* This is the last step. */ + result = (data->outbufavail + sizeof (wchar_t) > data->outbufsize + ? GCONV_FULL_OUTPUT : GCONV_EMPTY_INPUT); + break; + } + + /* Status so far. */ + result = GCONV_EMPTY_INPUT; + if (data->outbufavail > 0) { /* Call the functions below in the chain. */ @@ -221,7 +239,7 @@ __gconv_transform_utf8_ucs4 (struct gconv_step *step, written, 0); /* Correct the output buffer. */ - if (newavail != data->outbufavail) + if (newavail != data->outbufavail && newavail > 0) { memmove (data->outbuf, &data->outbuf[data->outbufavail - newavail], @@ -236,5 +254,5 @@ __gconv_transform_utf8_ucs4 (struct gconv_step *step, if (written != NULL && data->is_last) *written = do_write; - return GCONV_OK; + return result; } |