+/* Join any number of strings together, putting them in "dest". The return
+ * value is the length of all the strings, regardless of whether the null-
+ * terminated whole fits in destsize. Your list of string pointers must end
+ * with a NULL to indicate the end of the list. */
+size_t stringjoin(char *dest, size_t destsize, ...)
+{
+ va_list ap;
+ size_t len, ret = 0;
+ const char *src;
+
+ va_start(ap, destsize);
+ while (1) {
+ if (!(src = va_arg(ap, const char *)))
+ break;
+ len = strlen(src);
+ ret += len;
+ if (destsize > 1) {
+ if (len >= destsize)
+ len = destsize - 1;
+ memcpy(dest, src, len);
+ destsize -= len;
+ dest += len;
+ }
+ }
+ *dest = '\0';
+ va_end(ap);
+
+ return ret;
+}