char *ast_rtp_lookup_mime_multiple(char *buf, int size, const int capability, const int isAstFormat)
{
int format;
+ unsigned len;
+ char *end = buf;
+ char *start = buf;
if (!buf || !size)
return NULL;
- snprintf(buf, size, "0x%x (", capability);
+ snprintf(end, size, "0x%x (", capability);
+
+ len = strlen(end);
+ end += len;
+ size -= len;
+ start = end;
for (format = 1; format < AST_RTP_MAX; format <<= 1) {
if (capability & format) {
const char *name = ast_rtp_lookup_mime_subtype(isAstFormat, format);
- snprintf(buf + strlen(buf), size - strlen(buf), "%s|", name);
+ snprintf(end, size, "%s|", name);
+ len = strlen(end);
+ end += len;
+ size -= len;
}
}
- if (!ast_strlen_zero(buf))
- buf[strlen(buf)] = ')';
+ if (start == end)
+ snprintf(start, size, "nothing)");
+ else if (size > 1)
+ *(end -1) = ')';
+
return buf;
}