BIND 10 trac838, updated. 0e1eaada6f38f23e7de9404a94b2cd5dd2794879 [trac838] Make sure the parameter passed to isspace() is larger than 0 to avoid ASSERT failing on Windows platform.

[BIND 10 source code commits]

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       via  0e1eaada6f38f23e7de9404a94b2cd5dd2794879 (commit)
      from  16f90854f8957d12e2861bc77303f186402a8805 (commit)

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- Log -----------------------------------------------------------------
commit 0e1eaada6f38f23e7de9404a94b2cd5dd2794879
Author: Ocean Wang <wanghaidong at cnnic.cn>
Date:   Wed May 4 13:50:48 2011 +0800

    [trac838] Make sure the parameter passed to isspace() is larger than 0 to avoid ASSERT failing on Windows platform.

-----------------------------------------------------------------------

Summary of changes:
 src/lib/util/encode/base_n.cc |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

-----------------------------------------------------------------------
diff --git a/src/lib/util/encode/base_n.cc b/src/lib/util/encode/base_n.cc
index 46cb02c..a3043a0 100644
--- a/src/lib/util/encode/base_n.cc
+++ b/src/lib/util/encode/base_n.cc
@@ -166,7 +166,7 @@ public:
     {}
     DecodeNormalizer& operator++() {
         ++base_;
-        while (base_ != base_end_ && isspace(*base_)) {
+        while (base_ != base_end_ && (*base_ > 0) && isspace(*base_)) {
             ++base_;
         }
         if (base_ == base_beginpad_) {
@@ -271,7 +271,7 @@ BaseNTransformer<BitsPerChunk, BaseZeroCode, Encoder, Decoder>::decode(
                 isc_throw(BadValue, "Too many " << algorithm
                           << " padding characters: " << input);
             }
-        } else if (!isspace(ch)) {
+        } else if (ch < 0 || !isspace(ch)) {
             break;
         }
         ++srit;