This is the size of dst, not of src. The size of src is determined
by the address family.
Fix markup while here: .Fa for function arguments, not .Ar which is
for command arguments.
And make the tests work, and exercise all lengths up to 100.
Evidently the previous definition, presumably tightly optimized for
1980s-era compilers and CPUs, was too hard to understand, because it
was incorrectly tested for two decades and broken for years.
PR lib/57141
XXX pullup-8
XXX pullup-9
XXX pullup-10
the number of bytes to add - for multibyte characters n will be > 1.
Fix __slk_draw to pass in the actual length of the label instead of
the default label length because wide characters may make the
actual string length longer than the slk display length.
Although tzcode still works with C89, bugs found in recent routine
maintenance indicate that bitrot has set in and that in practice
C89 is no longer used to build tzcode. As it is a maintenance
burden, support for C89 is planned to be removed soon. Instead,
please use compilers compatible with C99, C11, C17, or C23.
timegm, which tzcode implemented in 1989, will finally be
standardized 34 years later as part of C23, so timegm is now
supported even if STD_INSPIRED is not defined.
Fix bug in zdump's tzalloc emulation on hosts that lack tm_zone.
(Problem reported by Đoàn Trần Công Danh.)
Fix bug in zic on hosts where malloc(0) yields NULL on success.
(Problem reported by Tim McBrayer for AIX 6.1.)
Fix zic configuration to avoid linkage failures on some platforms.
(Problems reported by Gilmore Davidson and Igor Ivanov.)
Work around MS-Windows nmake incompatibility with POSIX.
(Problem reported by Manuela Friedrich.)
Port mktime and strftime to debugging platforms where accessing
uninitialized data has undefined behavior (strftime problem
reported by Robert Elz).
Check more carefully for unlikely integer overflows, preferring
C23 <stdckdint.h> to overflow checking by hand, as the latter has
had obscure bugs.
The first paragraph could use some rewording. While BRE may be
obsolete, it's still the default for regcomp(3) and the default for
grep(1), sed(1), etc.
Use .Rv where possible. Some manual pages claimed that the error "is
returned", but RTFS and some quick testing indicate that this is wrong.
The commit message from 2003 says that:
Note our current implementation mis-matches [man pages] slightly
(error codes are stuffed into errno, where they should simply be
returned by these calls). This will be addressed shortly.
That hasn't happened in the 20 years, so we might as well make the man
pages reflect the reality.
rillig