+
−/*
+
− * This library module implements the conversion of UCS2-encoded data
+
− * (typically received in SMS) into ASCII, ISO 8859-1 or UTF-8,
+
− * maintaining parallelism with the corresponding function for decoding
+
− * GSM7-encoded data.
+
− */
+
−
+
−#include <sys/types.h>
+
−
+
−ucs2_to_ascii_or_ext(inbuf, inlen, outbuf, outlenp, ascii_ext, newline_ok, errp)
+
−	u_char *inbuf, *outbuf;
+
−	unsigned inlen, *outlenp, *errp;
+
−{
+
−	u_char *inp, *endp, *outp;
+
−	unsigned errcnt = 0;
+
−	unsigned uni;
+
−
+
−	inp = inbuf;
+
−	endp = inbuf + (inlen & ~1);
+
−	outp = outbuf;
+
−	while (inp < endp) {
+
−		uni = (inp[0] << 8) | inp[1];
+
−		inp += 2;
+
−		if (uni == '\r') {
+
−			*outp++ = '\\';
+
−			*outp++ = 'r';
+
−			errcnt++;
+
−		} else if (uni == '\n') {
+
−			if (newline_ok)
+
−				*outp++ = '\n';
+
−			else {
+
−				*outp++ = '\\';
+
−				*outp++ = 'n';
+
−				errcnt++;
+
−			}
+
−		} else if (!is_decoded_char_ok(uni, ascii_ext)) {
+
−			*outp++ = '?';
+
−			errcnt++;
+
−		} else if (ascii_ext == 2)
+
−			outp += emit_utf8_char(uni, outp);
+
−		else
+
−			*outp++ = uni;
+
−	}
+
−	*outp = '\0';
+
−	if (outlenp)
+
−		*outlenp = outp - outbuf;
+
−	if (errp)
+
−		*errp = errcnt;
+
−}