json: escape u0000 .. u001F when outputting json

Markus Armbruster pointed out:

JSON requires control characters in strings to be escaped.  RFC 4627
section 2.5:

   A string begins and ends with quotation marks.  All Unicode
   characters may be placed within the quotation marks except for the
   characters that must be escaped: quotation mark, reverse solidus, and
   the control characters (U+0000 through U+001F).

We've been quoting the special escape sequences that JSON defines but we
haven't been encoding the full control character range.  This patch fixes that.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

0 files changed, 0 insertions, 0 deletions