-static inline int XMPP_GetUtf8SequenceLength(const char *CharS, const char *CharE)
-{
- /* if this is is migrated to strbuf, remove this copy. */
- int n = 0;
- unsigned char test = (1<<7);
-
- if ((*CharS & 0xC0) != 0xC0)
- return 1;
-
- while ((n < 8) &&
- ((test & ((unsigned char)*CharS)) != 0))
- {
- test = test >> 1;
- n ++;
- }
- if ((n > 6) || ((CharE - CharS) < n))
- n = 0;
- return n;
-}
-
-
-/*
- * Given a source string and a target buffer, returns the string
- * properly escaped for insertion into an XML stream. Returns a
- * pointer to the target buffer for convenience.
- *
- * BUG: this does not properly handle UTF-8
- */
-char *xmlesc(char *buf, char *str, int bufsiz)
-{
- char *ptr;
- char *eiptr;
- unsigned char ch;
- int inlen;
- int len = 0;
- int IsUtf8Sequence;
-
- if (!buf) return(NULL);
- buf[0] = 0;
- len = 0;
- if (!str) {
- return(buf);
- }
-
- inlen = strlen(str);
- eiptr = str + inlen;
-
- for (ptr=str; *ptr; ptr++) {
- ch = *ptr;
- if (ch == '<') {
- strcpy(&buf[len], "<");
- len += 4;
- }
- else if (ch == '>') {
- strcpy(&buf[len], ">");
- len += 4;
- }
- else if (ch == '&') {
- strcpy(&buf[len], "&");
- len += 5;
- }
- else if ((ch >= 0x20) && (ch <= 0x7F)) {
- buf[len++] = ch;
- buf[len] = 0;
- }
- else if (ch < 0x20) {
- /* we probably shouldn't be doing this */
- buf[len++] = '_';
- buf[len] = 0;
- }
- else {
- char oct[32];
-
- IsUtf8Sequence = XMPP_GetUtf8SequenceLength(&buf[len], eiptr);
- if (IsUtf8Sequence)
- {
- while (IsUtf8Sequence > 0){
- buf[len] = *ptr;
- len ++;
- if (--IsUtf8Sequence)
- ptr++;
- }
- buf[len] = '\0';
- }
- else
- {
- sprintf(oct, "&#%o;", ch);
- strcpy(&buf[len], oct);
- len += strlen(oct);
- }
- }
- if ((len + 6) > bufsiz) {
- return(buf);
- }
- }
- return(buf);
-}
-
-