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137 lines
2.7 KiB
C
137 lines
2.7 KiB
C
/* getopt.c -- replacement getopt(3) routines */
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/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 1998-2017 The OpenLDAP Foundation.
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* Portions Copyright 1998-2003 Kurt D. Zeilenga.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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/* This work is based upon the public-domain getopt(3) routines
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* developed by AT&T. Modified by Kurt D. Zeilenga for inclusion
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* into OpenLDAP Software. Significant contributors include:
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* Howard Chu
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*/
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#include "portable.h"
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#ifndef HAVE_GETOPT
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#include <stdio.h>
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#include <ac/string.h>
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#include <ac/unistd.h>
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#ifdef HAVE_IO_H
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#include <io.h>
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#endif
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#include "lutil.h"
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#ifndef STDERR_FILENO
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#define STDERR_FILENO 2
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#endif
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int opterr = 1;
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int optind = 1;
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int optopt;
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char * optarg;
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#ifdef HAVE_EBCDIC
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extern int _trans_argv;
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#endif
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static void ERR (char * const argv[], const char * s, char c)
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{
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#ifdef DF_TRACE_DEBUG
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printf("DF_TRACE_DEBUG: static void ERR () in getopt.c\n");
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#endif
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if (opterr)
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{
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char *ptr, outbuf[4096];
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ptr = lutil_strncopy(outbuf, argv[0], sizeof(outbuf) - 2);
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ptr = lutil_strncopy(ptr, s, sizeof(outbuf)-2 -(ptr-outbuf));
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*ptr++ = c;
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*ptr++ = '\n';
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#ifdef HAVE_EBCDIC
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__atoe_l(outbuf, ptr - outbuf);
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#endif
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(void) write(STDERR_FILENO,outbuf,ptr - outbuf);
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}
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}
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int getopt (int argc, char * const argv [], const char * opts)
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{
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static int sp = 1, error = (int) '?';
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static char sw = '-', eos = '\0', arg = ':';
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register char c, * cp;
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#ifdef DF_TRACE_DEBUG
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printf("DF_TRACE_DEBUG: int getopt () in getopt.c\n");
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#endif
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#ifdef HAVE_EBCDIC
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if (_trans_argv) {
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int i;
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for (i=0; i<argc; i++) __etoa(argv[i]);
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_trans_argv = 0;
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}
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#endif
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if (sp == 1)
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{
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if (optind >= argc || argv[optind][0] != sw
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|| argv[optind][1] == eos)
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return EOF;
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else if (strcmp(argv[optind],"--") == 0)
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{
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optind++;
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return EOF;
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}
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}
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c = argv[optind][sp];
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optopt = (int) c;
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if (c == arg || (cp = strchr(opts,c)) == NULL)
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{
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ERR(argv,_(": illegal option--"),c);
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if (argv[optind][++sp] == eos)
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{
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optind++;
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sp = 1;
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}
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return error;
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}
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else if (*++cp == arg)
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{
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if (argv[optind][sp + 1] != eos)
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optarg = &argv[optind++][sp + 1];
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else if (++optind >= argc)
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{
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ERR(argv,_(": option requires an argument--"),c);
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sp = 1;
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return error;
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}
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else
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optarg = argv[optind++];
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sp = 1;
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}
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else
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{
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if (argv[optind][++sp] == eos)
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{
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sp = 1;
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optind++;
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}
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optarg = NULL;
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}
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return (int) c;
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}
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#endif /* HAVE_GETOPT */
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