date,touch: allow timezone offsets in dates
Allow ISO 8601 style dates to include a timezone offset. Like
the '@' format these dates aren't relative to the user's current
timezone and shouldn't be subject to DST adjustment.
- The implementation uses the strptime() '%z' format specifier.
This an extension which may not be available so the use of
timezones is a configuration option.
- The 'touch' applet has been updated to respect whether DST
adjustment is required, matching 'date'.
function old new delta
parse_datestr 624 730 +106
static.fmt_str 106 136 +30
touch_main 388 392 +4
date_main 818 819 +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/0 up/down: 141/0) Total: 141 bytes
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/libbb/Config.src b/libbb/Config.src
index f97de8e..58c5fad 100644
--- a/libbb/Config.src
+++ b/libbb/Config.src
@@ -395,3 +395,14 @@
default y
help
Support for printing infiniband addresses in network applets.
+
+config FEATURE_TIMEZONE
+ bool "Allow timezone in dates"
+ default y
+ depends on DESKTOP
+ help
+ Permit the use of timezones when parsing user-provided data
+ strings, e.g. '1996-04-09 12:45:00 -0500'.
+
+ This requires support for the '%z' extension to strptime() which
+ may not be available in all implementations.