------------------------------------------------------------
revno: 12680
revision-id: squid3@treenet.co.nz-20140827135054-gocmdaazdumj5e2e
parent: squid3@treenet.co.nz-20140520164322-out2c9fak6sb2u4x
committer: Amos Jeffries <squid3@treenet.co.nz>
branch nick: 3.3
timestamp: Wed 2014-08-27 07:50:54 -0600
message:
  Ignore Range headers with unidentifiable byte-range values
  
  If squid is unable to determine the byte value for ranges, treat the
  header as invalid.
------------------------------------------------------------
# Bazaar merge directive format 2 (Bazaar 0.90)
# revision_id: squid3@treenet.co.nz-20140827135054-gocmdaazdumj5e2e
# target_branch: http://bzr.squid-cache.org/bzr/squid3/3.3
# testament_sha1: 5518d5baca6f4327b40368e98fe8d9c36831fa1a
# timestamp: 2014-08-27 13:53:27 +0000
# source_branch: http://bzr.squid-cache.org/bzr/squid3/3.3
# base_revision_id: squid3@treenet.co.nz-20140520164322-\
#   out2c9fak6sb2u4x
# 
# Begin patch
=== modified file 'src/HttpHdrRange.cc'
--- src/HttpHdrRange.cc 2013-01-02 03:44:55 +0000
+++ src/HttpHdrRange.cc 2014-08-27 13:50:54 +0000
@@ -92,7 +92,7 @@
 
     /* is it a suffix-byte-range-spec ? */
     if (*field == '-') {
-        if (!httpHeaderParseOffset(field + 1, &length))
+        if (!httpHeaderParseOffset(field + 1, &length) || !known_spec(length))
             return false;
     } else
         /* must have a '-' somewhere in _this_ field */
@@ -100,7 +100,7 @@
             debugs(64, 2, "invalid (missing '-') range-spec near: '" << field << "'");
             return false;
         } else {
-            if (!httpHeaderParseOffset(field, &offset))
+            if (!httpHeaderParseOffset(field, &offset) || !known_spec(offset))
                 return false;
 
             ++p;
@@ -109,7 +109,7 @@
             if (p - field < flen) {
                 int64_t last_pos;
 
-                if (!httpHeaderParseOffset(p, &last_pos))
+                if (!httpHeaderParseOffset(p, &last_pos) || !known_spec(last_pos))
                     return false;
 
                 // RFC 2616 s14.35.1 MUST: last-byte-pos >= first-byte-pos