[hackers] [sbase] Do a range check on the resulting octal || FRIGN

[git]

commit 70adb1252dd154bd6517af49e916b8f2d4deeac9
Author:     FRIGN <d...@frign.de>
AuthorDate: Sat Feb 20 21:50:21 2016 +0100
Commit:     sin <s...@2f30.org>
CommitDate: Sun Feb 21 08:52:48 2016 +0000

    Do a range check on the resulting octal

diff --git a/libutil/unescape.c b/libutil/unescape.c
index 627c2a2..be18d1f 100644
--- a/libutil/unescape.c
+++ b/libutil/unescape.c
@@ -62,7 +62,7 @@ unescape(char *s)
                                q += (s[m] - '0') * factor;
                                factor *= 8;
                        }
-                       s[i] = q;
+                       s[i] = (q > 255) 255 : q;
                }
 
                for (m = i + 1; m <= len - off; m++)