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| author | Florian Weimer <fweimer@redhat.com> | 2021-07-19 07:55:27 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2021-07-19 07:55:42 +0200 |
| commit | 248dbed1187038918d79f62cd9cf631f4150c2a0 (patch) | |
| tree | c522c63f3934d0efdff8b2f1fdc9ae71e43951c6 /NEWS | |
| parent | 191e4068266462e7e4c650fc8ce8e11328a9f4a1 (diff) | |
| download | glibc-248dbed1187038918d79f62cd9cf631f4150c2a0.zip glibc-248dbed1187038918d79f62cd9cf631f4150c2a0.tar.gz glibc-248dbed1187038918d79f62cd9cf631f4150c2a0.tar.bz2 | |
resolv: Deprecate legacy interfaces in libresolv
Debugging interfaces: p_*, fp_*, and sym_* could conceivably be
used to produce debug out, but these functions have not been
updated to parse more resource records, so they are not very useful
today. Likewise for ns_sprintrr and ns_sprintrrf. ns_format_ttl and
ns_parse_ttl are related to these.
Internal implementation details: res_isourserver is probably only
useful in the implementation of a stub resolver, and so is
res_nameinquery.
Unclear semantics and bad performance: ns_samedomain, ns_subdomain,
ns_makecanon, ns_samename do textual converions & copies instead of
checking equivalence of the wire format.
inet_neta cannot handle IPv6 addresses.
res_hostalias has been superseded by getaddrinfo with AI_CANONNAME.
hostalias is not thread-safe.
Some functions have int as size arguments instead of size_t, so they
do not follow current coding practices. However, dn_expand and
b64_ntop are somewhat widely used (to name just two examples), so
deprecating them seems problematic.
Reviewed-by: Carlos O'Donell <carlos@systemhalted.org>
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 14 |
1 files changed, 14 insertions, 0 deletions
@@ -93,6 +93,20 @@ Deprecated and removed features, and other changes affecting compatibility: * The function pthread_yield has been deprecated; programs should use the equivalent standard function sched_yield instead. +* The function inet_neta declared in <arpa/inet.h> has been deprecated. + +* Various rarely-used functions declared in <resolv.h> and + <arpa/nameser.h> have been deprecated. Applications are encouraged to + use dedicated DNS processing libraries if applicable. For <resolv.h>, + this affects the functions dn_count_labels, fp_nquery, fp_query, + fp_resstat, hostalias, loc_aton, loc_ntoa, p_cdname, p_cdnname, + p_class, p_fqname, p_fqnname, p_option, p_query, p_rcode, p_time, + p_type, putlong, putshort, res_hostalias, res_isourserver, + res_nameinquery, res_queriesmatch, res_randomid, sym_ntop, sym_ntos, + sym_ston. For <arpa/nameser.h>, the functions ns_datetosecs, + ns_format_ttl, ns_makecanon, ns_parse_ttl, ns_samedomain, ns_samename, + ns_sprintrr, ns_sprintrrf, ns_subdomain have been deprecated. + * The pthread cancellation handler is now installed with SA_RESTART and pthread_cancel will always send the internal SIGCANCEL on a cancellation request. It should not be visible to application since the cancellation |