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/* getopt.c -- replacement getopt(3) routines */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 1998-2018 The OpenLDAP Foundation.
* Portions Copyright 1998-2003 Kurt D. Zeilenga.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
/* This work is based upon the public-domain getopt(3) routines
* developed by AT&T. Modified by Kurt D. Zeilenga for inclusion
* into OpenLDAP Software. Significant contributors include:
* Howard Chu
*/
#include "portable.h"
#ifndef HAVE_GETOPT
#include <stdio.h>
#include <ac/string.h>
#include <ac/unistd.h>
#ifdef HAVE_IO_H
#include <io.h>
#endif
#include "lutil.h"
#ifndef STDERR_FILENO
#define STDERR_FILENO 2
#endif
int opterr = 1;
int optind = 1;
int optopt;
char * optarg;
#ifdef HAVE_EBCDIC
extern int _trans_argv;
#endif
static void ERR (char * const argv[], const char * s, char c)
{
#ifdef DF_TRACE_DEBUG
printf("DF_TRACE_DEBUG: static void ERR () in getopt.c\n");
#endif
if (opterr)
{
char *ptr, outbuf[4096];
ptr = lutil_strncopy(outbuf, argv[0], sizeof(outbuf) - 2);
ptr = lutil_strncopy(ptr, s, sizeof(outbuf)-2 -(ptr-outbuf));
*ptr++ = c;
*ptr++ = '\n';
#ifdef HAVE_EBCDIC
__atoe_l(outbuf, ptr - outbuf);
#endif
(void) write(STDERR_FILENO,outbuf,ptr - outbuf);
}
}
int getopt (int argc, char * const argv [], const char * opts)
{
static int sp = 1, error = (int) '?';
static char sw = '-', eos = '\0', arg = ':';
register char c, * cp;
#ifdef DF_TRACE_DEBUG
printf("DF_TRACE_DEBUG: int getopt () in getopt.c\n");
#endif
#ifdef HAVE_EBCDIC
if (_trans_argv) {
int i;
for (i=0; i<argc; i++) __etoa(argv[i]);
_trans_argv = 0;
}
#endif
if (sp == 1)
{
if (optind >= argc || argv[optind][0] != sw
|| argv[optind][1] == eos)
return EOF;
else if (strcmp(argv[optind],"--") == 0)
{
optind++;
return EOF;
}
}
c = argv[optind][sp];
optopt = (int) c;
if (c == arg || (cp = strchr(opts,c)) == NULL)
{
ERR(argv,_(": illegal option--"),c);
if (argv[optind][++sp] == eos)
{
optind++;
sp = 1;
}
return error;
}
else if (*++cp == arg)
{
if (argv[optind][sp + 1] != eos)
optarg = &argv[optind++][sp + 1];
else if (++optind >= argc)
{
ERR(argv,_(": option requires an argument--"),c);
sp = 1;
return error;
}
else
optarg = argv[optind++];
sp = 1;
}
else
{
if (argv[optind][++sp] == eos)
{
sp = 1;
optind++;
}
optarg = NULL;
}
return (int) c;
}
#endif /* HAVE_GETOPT */
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