https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=231705
Bug ID: 231705
Summary: pom(6) incorrect output
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: bin
Assignee: b...@freebsd.org
Reporter: and...@tao11.riddles.org.uk
Created attachment 197476
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=197476&action=edit
patch for pom(6)
$ TZ=GMT-1; export TZ
$ for d in 2018.01.30 2018.01.31 2018.02.01 2018.02.02; do printf "%s: " "$d";
pom -d $d; done
2018.01.30: The Moon is Waxing Gibbous (97% of Full)
2018.01.31: The Moon is Waning Gibbous (100% of Full)
2018.02.01: The Moon is Full
2018.02.02: The Moon is Waning Gibbous (98% of Full)
Line 2 shows incorrect output of "Waning Gibbous" instead of "Waxing Gibbous",
and 100% instead of the correct 99%. This is caused by the fact that "today"
has had 0.5 added to it before comparing against "tomorrow", which has not.
In addition, rounding means that the displayed percentage is often higher than
the true value: today+0.5 is being rounded, not truncated, to 0 decimals by
%1.0f.
A separate bug causes the computed GMT time to be possibly off by one hour: the
value of tm_isdst from the current time is being kept rather than being set
back to -1 when requesting a specific date or time.
Patch attached.
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