+int strunescape (char *buf, size_t buf_len)
+{
+ size_t i;
+
+ for (i = 0; (i < buf_len) && (buf[i] != '\0'); ++i)
+ {
+ if (buf[i] != '\\')
+ continue;
+
+ if ((i >= buf_len) || (buf[i + 1] == '\0')) {
+ ERROR ("string unescape: backslash found at end of string.");
+ return (-1);
+ }
+
+ switch (buf[i + 1]) {
+ case 't':
+ buf[i] = '\t';
+ break;
+ case 'n':
+ buf[i] = '\n';
+ break;
+ case 'r':
+ buf[i] = '\r';
+ break;
+ default:
+ buf[i] = buf[i + 1];
+ break;
+ }
+
+ memmove (buf + i + 1, buf + i + 2, buf_len - i - 2);
+ }
+ return (0);
+} /* int strunescape */
+