1
0
Fork 0
mirror of git://git.code.sf.net/p/cdesktopenv/code synced 2025-03-09 15:50:02 +00:00
cde/src/lib/libast/comp/strftime.c
Martijn Dekker 3de4da5afb Remove Microsoft/Cygwin import/export nonsense
Windows/Cygwin requires onerous special handling and the definition
of additional _imp__* symbols to import/export symbols between
dynamically linked binaries. Its support in AST used a lot of
macros and code obfuscation. In the features/common test for this,
AT&T called this the "Microsoft import/export nonsense".

They're right, it's nonsense. Somehow, Microsoft's POSIX layer,
SFU/Interix, always managed without it. No one has time to maintain
this (especially considering how incredibly sluggish Cygwin is).
And in fact, it had already fallen victim to bit rot; I confirmed
this in my early experiments with reintroducing dynamic library
support. No one has time to fix it, either.

So, my apologies to any Cygwin fans; ksh 93u+m will never support
dynamically loadable built-ins on Cygwin, even when I do manage to
reintroduce dynamic linking properly.
2022-07-21 23:27:37 +02:00

100 lines
3.3 KiB
C

/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2011 AT&T Intellectual Property *
* Copyright (c) 2020-2022 Contributors to ksh 93u+m *
* and is licensed under the *
* Eclipse Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.eclipse.org/org/documents/epl-v10.html *
* (with md5 checksum b35adb5213ca9657e911e9befb180842) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* David Korn <dgk@research.att.com> *
* Phong Vo <kpv@research.att.com> *
* *
***********************************************************************/
/*
* strftime implementation
*/
#define strftime ______strftime
#include <ast.h>
#include <tm.h>
#undef strftime
#undef _def_map_ast
#include <ast_map.h>
#undef _lib_strftime /* we can pass X/Open */
#if _lib_strftime
NoN(strftime)
#else
extern size_t
strftime(char* buf, size_t len, const char* format, const struct tm* tm)
{
register char* s;
time_t t;
Tm_t tl;
memset(&tl, 0, sizeof(tl));
/*
* nl_langinfo() may call strftime() with bogus tm except for
* one value -- what a way to go
*/
if (tm->tm_sec < 0 || tm->tm_sec > 60 ||
tm->tm_min < 0 || tm->tm_min > 59 ||
tm->tm_hour < 0 || tm->tm_hour > 23 ||
tm->tm_wday < 0 || tm->tm_wday > 6 ||
tm->tm_mday < 1 || tm->tm_mday > 31 ||
tm->tm_mon < 0 || tm->tm_mon > 11 ||
tm->tm_year < 0 || tm->tm_year > (2138 - 1900))
{
if (tm->tm_sec >= 0 && tm->tm_sec <= 60)
tl.tm_sec = tm->tm_sec;
if (tm->tm_min >= 0 && tm->tm_min <= 59)
tl.tm_min = tm->tm_min;
if (tm->tm_hour >= 0 && tm->tm_hour <= 23)
tl.tm_hour = tm->tm_hour;
if (tm->tm_wday >= 0 && tm->tm_wday <= 6)
tl.tm_wday = tm->tm_wday;
if (tm->tm_mday >= 0 && tm->tm_mday <= 31)
tl.tm_mday = tm->tm_mday;
if (tm->tm_mon >= 0 && tm->tm_mon <= 11)
tl.tm_mon = tm->tm_mon;
if (tm->tm_year >= 0 && tm->tm_year <= (2138 - 1900))
tl.tm_year = tm->tm_year;
}
else
{
tl.tm_sec = tm->tm_sec;
tl.tm_min = tm->tm_min;
tl.tm_hour = tm->tm_hour;
tl.tm_mday = tm->tm_mday;
tl.tm_mon = tm->tm_mon;
tl.tm_year = tm->tm_year;
tl.tm_wday = tm->tm_wday;
tl.tm_yday = tm->tm_yday;
tl.tm_isdst = tm->tm_isdst;
}
t = tmtime(&tl, TM_LOCALZONE);
if (!(s = tmfmt(buf, len, format, &t)))
return 0;
return s - buf;
}
#endif