Function parse_extra_token

modules/acc/acc_extra.c:234–291

* from a token in form of * tag->value extract the tag and the value * @param token * @param tag reference * @param value reference * @return 0 (success) / < 0 (error) * * tag and value must be allocated beforehand */

 * tag and value must be allocated beforehand
 */
static int parse_extra_token(str* token, str* tag, str* value)
{

	/* insanity checks */
	if (token == NULL || token->len == 0 || token->s == NULL
							|| tag == NULL || value == NULL) {
		LM_ERR("bad input!\n");
		return -1;
	}

	/* remove tabs, newlines etc */
	while ( token->s[0] == '\n' || token->s[0] == '\t' || token->s[0] == ' ') {
		token->s++;
		token->len--;
	}

	/* value will not point exactly where the value is
	 * will point where the - character from the '->' delimiter will be */
	if ((value->s = str_strstr(token, &tag_delim)) == NULL) {
		/* if not found then the value is the same as the token */
		str_trim_spaces_lr(*token);

		/**
		 * FIXME null terminate the string
		 * quite insane to do this but it should be safe because after the token
		 * it's either a delimiter for another token or a '\0' that
		 * terminates the string
		 */
		token->s[token->len] = 0;
		*value = *tag = *token;
	} else {
		tag->s = token->s;
		tag->len = value->s - token->s;

		/* jump over '->' delimiter */
		value->s += tag_delim.len;
		value->len = token->len - (value->s - token->s);

		str_trim_spaces_lr(*tag);
		str_trim_spaces_lr(*value);

		/**
		 * FIXME null terminate the string
		 * safe because after the tag it's the tag-value delimiter
		 */
		tag->s[tag->len] = 0;

		/**
		 * FIXME null terminate the string
		 * quite insane to do this but it should be safe because after the token
		 * it's either a delimiter for another token or a '\0' that
		 * terminates the string
		 */
		value->s[value->len] = 0;
	}

	return 0;
}