2010-09-20 22:08:53 +02:00
|
|
|
/* src/port/getopt.c */
|
2006-03-11 05:38:42 +01:00
|
|
|
|
2002-10-29 05:22:37 +01:00
|
|
|
/*
|
|
|
|
* Copyright (c) 1987, 1993, 1994
|
|
|
|
* The Regents of the University of California. All rights reserved.
|
|
|
|
*
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
|
|
* modification, are permitted provided that the following conditions
|
|
|
|
* are met:
|
|
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer.
|
|
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
|
|
* documentation and/or other materials provided with the distribution.
|
2007-03-26 23:44:11 +02:00
|
|
|
* 3. Neither the name of the University nor the names of its contributors
|
2002-10-29 05:22:37 +01:00
|
|
|
* may be used to endorse or promote products derived from this software
|
|
|
|
* without specific prior written permission.
|
|
|
|
*
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
2014-05-06 18:12:18 +02:00
|
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
2002-10-29 05:22:37 +01:00
|
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
|
|
*/
|
|
|
|
|
2004-06-24 20:53:48 +02:00
|
|
|
#include "c.h"
|
2003-05-15 18:35:30 +02:00
|
|
|
|
2014-02-15 20:31:30 +01:00
|
|
|
#include "pg_getopt.h"
|
|
|
|
|
2002-10-29 05:22:37 +01:00
|
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
|
|
static char sccsid[] = "@(#)getopt.c 8.3 (Berkeley) 4/27/95";
|
Phase 2 of pgindent updates.
Change pg_bsd_indent to follow upstream rules for placement of comments
to the right of code, and remove pgindent hack that caused comments
following #endif to not obey the general rule.
Commit e3860ffa4dd0dad0dd9eea4be9cc1412373a8c89 wasn't actually using
the published version of pg_bsd_indent, but a hacked-up version that
tried to minimize the amount of movement of comments to the right of
code. The situation of interest is where such a comment has to be
moved to the right of its default placement at column 33 because there's
code there. BSD indent has always moved right in units of tab stops
in such cases --- but in the previous incarnation, indent was working
in 8-space tab stops, while now it knows we use 4-space tabs. So the
net result is that in about half the cases, such comments are placed
one tab stop left of before. This is better all around: it leaves
more room on the line for comment text, and it means that in such
cases the comment uniformly starts at the next 4-space tab stop after
the code, rather than sometimes one and sometimes two tabs after.
Also, ensure that comments following #endif are indented the same
as comments following other preprocessor commands such as #else.
That inconsistency turns out to have been self-inflicted damage
from a poorly-thought-through post-indent "fixup" in pgindent.
This patch is much less interesting than the first round of indent
changes, but also bulkier, so I thought it best to separate the effects.
Discussion: https://postgr.es/m/E1dAmxK-0006EE-1r@gemulon.postgresql.org
Discussion: https://postgr.es/m/30527.1495162840@sss.pgh.pa.us
2017-06-21 21:18:54 +02:00
|
|
|
#endif /* LIBC_SCCS and not lint */
|
2002-10-29 05:22:37 +01:00
|
|
|
|
|
|
|
|
2009-04-04 23:55:50 +02:00
|
|
|
/*
|
2019-01-18 21:06:26 +01:00
|
|
|
* On OpenBSD and some versions of Solaris, opterr and friends are defined in
|
|
|
|
* core libc rather than in a separate getopt module. Define these variables
|
|
|
|
* only if configure found they aren't there by default; otherwise, this
|
|
|
|
* module and its callers will just use libc's variables. (We assume that
|
|
|
|
* testing opterr is sufficient for all of these.)
|
2009-04-04 23:55:50 +02:00
|
|
|
*/
|
|
|
|
#ifndef HAVE_INT_OPTERR
|
|
|
|
|
2002-10-29 05:22:37 +01:00
|
|
|
int opterr = 1, /* if error message should be printed */
|
|
|
|
optind = 1, /* index into parent argv vector */
|
2009-04-04 23:55:50 +02:00
|
|
|
optopt; /* character checked for validity */
|
2002-10-29 05:22:37 +01:00
|
|
|
char *optarg; /* argument associated with option */
|
2009-04-05 00:36:11 +02:00
|
|
|
|
2009-04-04 23:55:50 +02:00
|
|
|
#endif
|
|
|
|
|
2002-10-29 05:22:37 +01:00
|
|
|
#define BADCH (int)'?'
|
|
|
|
#define BADARG (int)':'
|
|
|
|
#define EMSG ""
|
|
|
|
|
|
|
|
/*
|
|
|
|
* getopt
|
|
|
|
* Parse argc/argv argument vector.
|
2010-12-16 22:22:05 +01:00
|
|
|
*
|
|
|
|
* This implementation does not use optreset. Instead, we guarantee that
|
|
|
|
* it can be restarted on a new argv array after a previous call returned -1,
|
|
|
|
* if the caller resets optind to 1 before the first call of the new series.
|
|
|
|
* (Internally, this means we must be sure to reset "place" to EMSG before
|
|
|
|
* returning -1.)
|
2002-10-29 05:22:37 +01:00
|
|
|
*/
|
|
|
|
int
|
2017-06-21 20:39:04 +02:00
|
|
|
getopt(int nargc, char *const *nargv, const char *ostr)
|
2002-10-29 05:22:37 +01:00
|
|
|
{
|
|
|
|
static char *place = EMSG; /* option letter processing */
|
|
|
|
char *oli; /* option letter list index */
|
|
|
|
|
2010-12-16 22:22:05 +01:00
|
|
|
if (!*place)
|
2002-10-29 05:22:37 +01:00
|
|
|
{ /* update scanning pointer */
|
|
|
|
if (optind >= nargc || *(place = nargv[optind]) != '-')
|
|
|
|
{
|
|
|
|
place = EMSG;
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
if (place[1] && *++place == '-' && place[1] == '\0')
|
|
|
|
{ /* found "--" */
|
|
|
|
++optind;
|
|
|
|
place = EMSG;
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
} /* option letter okay? */
|
|
|
|
if ((optopt = (int) *place++) == (int) ':' ||
|
|
|
|
!(oli = strchr(ostr, optopt)))
|
|
|
|
{
|
|
|
|
/*
|
2005-10-15 04:49:52 +02:00
|
|
|
* if the user didn't specify '-' as an option, assume it means -1.
|
2002-10-29 05:22:37 +01:00
|
|
|
*/
|
|
|
|
if (optopt == (int) '-')
|
2010-12-16 22:22:05 +01:00
|
|
|
{
|
|
|
|
place = EMSG;
|
2002-10-29 05:22:37 +01:00
|
|
|
return -1;
|
2010-12-16 22:22:05 +01:00
|
|
|
}
|
2002-10-29 05:22:37 +01:00
|
|
|
if (!*place)
|
|
|
|
++optind;
|
|
|
|
if (opterr && *ostr != ':')
|
|
|
|
(void) fprintf(stderr,
|
2003-08-04 02:43:34 +02:00
|
|
|
"illegal option -- %c\n", optopt);
|
2002-10-29 05:22:37 +01:00
|
|
|
return BADCH;
|
|
|
|
}
|
|
|
|
if (*++oli != ':')
|
|
|
|
{ /* don't need argument */
|
|
|
|
optarg = NULL;
|
|
|
|
if (!*place)
|
|
|
|
++optind;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{ /* need an argument */
|
|
|
|
if (*place) /* no white space */
|
|
|
|
optarg = place;
|
|
|
|
else if (nargc <= ++optind)
|
|
|
|
{ /* no arg */
|
|
|
|
place = EMSG;
|
|
|
|
if (*ostr == ':')
|
|
|
|
return BADARG;
|
|
|
|
if (opterr)
|
|
|
|
(void) fprintf(stderr,
|
2003-05-15 18:35:30 +02:00
|
|
|
"option requires an argument -- %c\n",
|
|
|
|
optopt);
|
2002-10-29 05:22:37 +01:00
|
|
|
return BADCH;
|
|
|
|
}
|
|
|
|
else
|
2004-10-07 17:21:58 +02:00
|
|
|
/* white space */
|
2002-10-29 05:22:37 +01:00
|
|
|
optarg = nargv[optind];
|
|
|
|
place = EMSG;
|
|
|
|
++optind;
|
|
|
|
}
|
|
|
|
return optopt; /* dump back option letter */
|
|
|
|
}
|