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/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifdef WIN32
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <stdlib.h>
#define OPTERRCOLON (1)
#define OPTERRNF (2)
#define OPTERRARG (3)
char *optarg;
int optreset = 0;
int optind = 1;
int opterr = 1;
int optopt;
static int
optiserr(int argc, char * const *argv, int oint, const char *optstr,
int optchr, int err)
{
if(opterr)
{
fprintf(stderr, "Error in argument %d, char %d: ", oint, optchr+1);
switch(err)
{
case OPTERRCOLON:
fprintf(stderr, ": in flags\n");
break;
case OPTERRNF:
fprintf(stderr, "option not found %c\n", argv[oint][optchr]);
break;
case OPTERRARG:
fprintf(stderr, "no argument for option %c\n", argv[oint][optchr]);
break;
default:
fprintf(stderr, "unknown\n");
break;
}
}
optopt = argv[oint][optchr];
return('?');
}
int
getopt(int argc, char* const *argv, const char *optstr)
{
static int optchr = 0;
static int dash = 0; /* have already seen the - */
char *cp;
if (optreset)
optreset = optchr = dash = 0;
if(optind >= argc)
return(EOF);
if(!dash && (argv[optind][0] != '-'))
return(EOF);
if(!dash && (argv[optind][0] == '-') && !argv[optind][1])
{
/*
* use to specify stdin. Need to let pgm process this and
* the following args
*/
return(EOF);
}
if((argv[optind][0] == '-') && (argv[optind][1] == '-'))
{
/* -- indicates end of args */
optind++;
return(EOF);
}
if(!dash)
{
assert((argv[optind][0] == '-') && argv[optind][1]);
dash = 1;
optchr = 1;
}
/* Check if the guy tries to do a -: kind of flag */
assert(dash);
if(argv[optind][optchr] == ':')
{
dash = 0;
optind++;
return(optiserr(argc, argv, optind-1, optstr, optchr, OPTERRCOLON));
}
if(!(cp = strchr(optstr, argv[optind][optchr])))
{
int errind = optind;
int errchr = optchr;
if(!argv[optind][optchr+1])
{
dash = 0;
optind++;
}
else
optchr++;
return(optiserr(argc, argv, errind, optstr, errchr, OPTERRNF));
}
if(cp[1] == ':')
{
dash = 0;
optind++;
if(optind == argc)
return(optiserr(argc, argv, optind-1, optstr, optchr, OPTERRARG));
optarg = argv[optind++];
return(*cp);
}
else
{
if(!argv[optind][optchr+1])
{
dash = 0;
optind++;
}
else
optchr++;
return(*cp);
}
assert(0);
return(0);
}
#ifdef TESTGETOPT
int
main (int argc, char **argv)
{
int c;
extern char *optarg;
extern int optind;
int aflg = 0;
int bflg = 0;
int errflg = 0;
char *ofile = NULL;
while ((c = getopt(argc, argv, "abo:")) != EOF)
switch (c) {
case 'a':
if (bflg)
errflg++;
else
aflg++;
break;
case 'b':
if (aflg)
errflg++;
else
bflg++;
break;
case 'o':
ofile = optarg;
(void)printf("ofile = %s\n", ofile);
break;
case '?':
errflg++;
}
if (errflg) {
(void)fprintf(stderr,
"usage: cmd [-a|-b] [-o <filename>] files...\n");
exit (2);
}
for ( ; optind < argc; optind++)
(void)printf("%s\n", argv[optind]);
return 0;
}
#endif /* TESTGETOPT */
#endif /* WIN32 */
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