ticket: 7585

Rename the krb5int_buf_ family of functions to use the k5_ prefix for
brevity.  Reformat some k5buf implementation code to match current
practices.

Add a template-based array constructor for convenient marshalling of
structured values as JSON array values.  Use it to simplify
export_cred.c.

Return error codes (0, ENOMEM, or EINVAL) from JSON support functions
instead of returning results directly.  This makes error handling
simpler for functions which assemble JSON objects and then return a
krb5_error_code values.  Adjust all callers.  Use shims in
export_cred.c to minimize changes there; it will be redesigned
internally in a subsequent commit.

In fake-addrinfo.c, the COPY_FIRST_CANONNAME logic erroneously assumes
that h_name is the same as h_aliases[0].  Look at h_name before
h_aliases for an FQDN, since h_name is normally the
forward-canonicalized name and h_aliases are not.

[ghudson@mit.edu: rewrote commit message]

ticket: 7556 (new)

Mostly this gets rid of the trailing space on line 2 after
bb76891f5386526bdf91bc790c614fc9296cb5fa.

Signed overflow must be checked before it happens, since modern
versions of gcc will optimize out checks of the result.  Reported by
Nickolai Zeldovich <nickolai@csail.mit.edu>.

ticket: 7511

Eliminate the scratch_buf field of struct error_info and just return a
non-localized constant error message if we can't allocate a copy of
the real one.  Also rely on a conformant strerror().

Fix style issues in kerrs.c and errors.c.  Rename error handling
functions to use shorter k5_ prefix.  Eliminate an inoperable
krb5int_set_error() call in gic_opte_alloc and convert the other
call to use krb5_set_error_message().

Add an internal json function to make it easier to detect if an object
is empty, and use it to avoid creating a ccache config entry for
preauth module config data if there isn't any to save.

ticket: 7427 (new)
target_version: 1.11
tags: pullup