mirror of
git://git.code.sf.net/p/cdesktopenv/code
synced 2025-03-09 15:50:02 +00:00
This takes another small step towards disentangling the build system from the old AT&T environment. The USAGE_LICENSE macros with author and copyright information, which was formerly generated dynamically for each file from a database, are eliminated and the copyright/author information is instead inserted into the AST getopt usage strings directly. Repetitive license/copyright information is also removed from the getopt strings in the builtin commands (src/lib/libcmd/*.c and src/cmd/ksh93/data/builtins.c). There's no need to include 55 identical license/copyright strings in the ksh binary; one (in the main ksh getopt string, shown by ksh --man) ought to be enough! This makes the ksh binary about 10k smaller. It does mean that something like 'enum --author', 'typeset --license' or 'shift --copyright' will now not show those notices for those builtins, but I doubt anyone will care.
79 lines
3 KiB
C
79 lines
3 KiB
C
/***********************************************************************
|
|
* *
|
|
* This software is part of the ast package *
|
|
* Copyright (c) 1992-2012 AT&T Intellectual Property *
|
|
* 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> *
|
|
* *
|
|
***********************************************************************/
|
|
#pragma prototyped
|
|
/*
|
|
* David Korn
|
|
* Glenn Fowler
|
|
* AT&T Research
|
|
*/
|
|
|
|
static const char usage[] =
|
|
"[-?\n@(#)$Id: sync (AT&T Research) 2006-10-04 $\n]"
|
|
"[--catalog?" ERROR_CATALOG "]"
|
|
"[+NAME?sync - schedule file system updates]"
|
|
"[+DESCRIPTION?\bsync\b calls \bsync\b(2), which causes all information "
|
|
"in memory that updates file systems to be scheduled for writing out to "
|
|
"all file systems. The writing, although scheduled, is not necessarily "
|
|
"complete upon return from \bsync\b.]"
|
|
"[+?Since \bsync\b(2) has no failure indication, \bsync\b only fails for "
|
|
"option/operand syntax errors, or when \bsync\b(2) does not return, in "
|
|
"which case \bsync\b also does not return.]"
|
|
"[+?At minimum \bsync\b should be called before halting the system. Most "
|
|
"systems provide graceful shutdown procedures that include \bsync\b -- "
|
|
"use them if possible.]"
|
|
"[+EXIT STATUS?]"
|
|
"{"
|
|
"[+0?\bsync\b(2) returned.]"
|
|
"[+>0?Option/operand syntax error.]"
|
|
"}"
|
|
"[+SEE ALSO?\bsync\b(2), \bshutdown\b(8)]"
|
|
;
|
|
|
|
#include <cmd.h>
|
|
#include <ls.h>
|
|
|
|
int
|
|
b_sync(int argc, char** argv, Shbltin_t* context)
|
|
{
|
|
cmdinit(argc, argv, context, ERROR_CATALOG, 0);
|
|
for (;;)
|
|
{
|
|
switch (optget(argv, usage))
|
|
{
|
|
case ':':
|
|
error(2, "%s", opt_info.arg);
|
|
break;
|
|
case '?':
|
|
error(ERROR_usage(2), "%s", opt_info.arg);
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
argv += opt_info.index;
|
|
if (error_info.errors || *argv)
|
|
error(ERROR_usage(2), "%s", optusage(NiL));
|
|
#if _lib_sync
|
|
sync();
|
|
#else
|
|
error(ERROR_usage(2), "failed -- the native system does not provide a sync(2) call");
|
|
#endif
|
|
return 0;
|
|
}
|