utf8()

static int utf8 ( const char *  fromcode, char *  inputbuf, char **  outputbuf  )

static

Definition at line 60 of file shp2pgsql-core.c.

References free(), malloc(), UTF8_BAD_RESULT, UTF8_GOOD_RESULT, and UTF8_NO_RESULT.

Referenced by ShpLoaderGenerateSQLRowStatement(), and ShpLoaderOpenShape().

{
        iconv_t cd;
        char *outputptr;
        size_t outbytesleft;
        size_t inbytesleft;

        inbytesleft = strlen(inputbuf);

        cd = iconv_open("UTF-8", fromcode);
        if ( cd == ((iconv_t)(-1)) )
                return UTF8_NO_RESULT;

        outbytesleft = inbytesleft * 3 + 1; /* UTF8 string can be 3 times larger */
        /* then local string */
        *outputbuf = (char *)malloc(outbytesleft);
        if (!*outputbuf)
                return UTF8_NO_RESULT;

        memset(*outputbuf, 0, outbytesleft);
        outputptr = *outputbuf;

        /* Does this string convert cleanly? */
        if ( iconv(cd, &inputbuf, &inbytesleft, &outputptr, &outbytesleft) == -1 )
        {
#ifdef HAVE_ICONVCTL
                int on = 1;
                /* No. Try to convert it while transliterating. */
                iconvctl(cd, ICONV_SET_TRANSLITERATE, &on);
                if ( iconv(cd, &inputbuf, &inbytesleft, &outputptr, &outbytesleft) == -1 )
                {
                        /* No. Try to convert it while discarding errors. */
                        iconvctl(cd, ICONV_SET_DISCARD_ILSEQ, &on);
                        if ( iconv(cd, &inputbuf, &inbytesleft, &outputptr, &outbytesleft) == -1 )
                        {
                                /* Still no. Throw away the buffer and return. */
                                free(*outputbuf);
                                iconv_close(cd);
                                return UTF8_NO_RESULT;
                        }
                }
                iconv_close(cd);
                return UTF8_BAD_RESULT;
#else
                free(*outputbuf);
                iconv_close(cd);
                return UTF8_NO_RESULT;
#endif
        }
        /* Return a good result, converted string is in buffer. */
        iconv_close(cd);
        return UTF8_GOOD_RESULT;
}

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