+/* $NetBSD: getopt.c,v 1.16 1999/12/02 13:15:56 kleink Exp $ */
+
/*
- * Copyright (c) 1987, 1993
+ * 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
* SUCH DAMAGE.
*/
-/* based on @(#)getopt.c 8.1 (Berkeley) 6/4/93 */
-
-#ifndef __STDC__
-#define const
+#if 0
+static char sccsid[] = "@(#)getopt.c 8.3 (Berkeley) 4/27/95";
#endif
+
+#include <assert.h>
+#include <errno.h>
#include <stdio.h>
-#include <stdlib.h>
#include <string.h>
-/*
- * get option letter from argument vector
- */
+#define __P(x) x
+#define _DIAGASSERT(x) assert(x)
+
+#ifdef __weak_alias
+__weak_alias(getopt,_getopt);
+#endif
+
+
int opterr = 1, /* if error message should be printed */
optind = 1, /* index into parent argv vector */
optopt, /* character checked for validity */
optreset; /* reset getopt */
char *optarg; /* argument associated with option */
+static char * _progname __P((char *));
+int getopt_internal __P((int, char * const *, const char *));
+
+static char *
+_progname(nargv0)
+ char * nargv0;
+{
+ char * tmp;
+
+ _DIAGASSERT(nargv0 != NULL);
+
+ tmp = strrchr(nargv0, '/');
+ if (tmp)
+ tmp++;
+ else
+ tmp = nargv0;
+ return(tmp);
+}
+
#define BADCH (int)'?'
#define BADARG (int)':'
#define EMSG ""
+/*
+ * getopt --
+ * Parse argc/argv argument vector.
+ */
int
getopt(nargc, nargv, ostr)
int nargc;
- char * const *nargv;
+ char * const nargv[];
const char *ostr;
{
+ static char *__progname = 0;
static char *place = EMSG; /* option letter processing */
- register char *oli; /* option letter list index */
- char *p;
+ char *oli; /* option letter list index */
+ __progname = __progname?__progname:_progname(*nargv);
+
+ _DIAGASSERT(nargv != NULL);
+ _DIAGASSERT(ostr != NULL);
if (optreset || !*place) { /* update scanning pointer */
optreset = 0;
if (optind >= nargc || *(place = nargv[optind]) != '-') {
place = EMSG;
- return(-1);
+ return (-1);
}
- if (place[1] && *++place == '-') { /* found "--" */
+ if (place[1] && *++place == '-' /* found "--" */
+ && place[1] == '\0') {
++optind;
place = EMSG;
- return(-1);
+ return (-1);
}
} /* option letter okay? */
if ((optopt = (int)*place++) == (int)':' ||
!(oli = strchr(ostr, optopt))) {
/*
* if the user didn't specify '-' as an option,
- * assume it means EOF.
+ * assume it means -1.
*/
if (optopt == (int)'-')
- return(-1);
+ return (-1);
if (!*place)
++optind;
- if (opterr && *ostr != ':') {
- if (!(p = strrchr(*nargv, '/')))
- p = *nargv;
- else
- ++p;
- (void)fprintf(stderr, "%s: illegal option -- %c\n",
- p, optopt);
- }
- return(BADCH);
+ if (opterr && *ostr != ':')
+ (void)fprintf(stderr,
+ "%s: illegal option -- %c\n", __progname, optopt);
+ return (BADCH);
}
if (*++oli != ':') { /* don't need argument */
optarg = NULL;
optarg = place;
else if (nargc <= ++optind) { /* no arg */
place = EMSG;
- if (!(p = strrchr(*nargv, '/')))
- p = *nargv;
- else
- ++p;
if (*ostr == ':')
- return(BADARG);
+ return (BADARG);
if (opterr)
(void)fprintf(stderr,
"%s: option requires an argument -- %c\n",
- p, optopt);
- return(BADCH);
+ __progname, optopt);
+ return (BADCH);
}
else /* white space */
optarg = nargv[optind];
place = EMSG;
++optind;
}
- return(optopt); /* dump back option letter */
+ return (optopt); /* dump back option letter */
}
--- /dev/null
+/*
+ * Copyright (c) 1987, 1993, 1994, 1996
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * 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
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * 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
+ * SUCH DAMAGE.
+ */
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "getopt.h"
+
+extern int opterr; /* if error message should be printed */
+extern int optind; /* index into parent argv vector */
+extern int optopt; /* character checked for validity */
+extern int optreset; /* reset getopt */
+extern char *optarg; /* argument associated with option */
+
+#define __P(x) x
+#define _DIAGASSERT(x) assert(x)
+
+static char * __progname __P((char *));
+int getopt_internal __P((int, char * const *, const char *));
+
+static char *
+__progname(nargv0)
+ char * nargv0;
+{
+ char * tmp;
+
+ _DIAGASSERT(nargv0 != NULL);
+
+ tmp = strrchr(nargv0, '/');
+ if (tmp)
+ tmp++;
+ else
+ tmp = nargv0;
+ return(tmp);
+}
+
+#define BADCH (int)'?'
+#define BADARG (int)':'
+#define EMSG ""
+
+/*
+ * getopt --
+ * Parse argc/argv argument vector.
+ */
+int
+getopt_internal(nargc, nargv, ostr)
+ int nargc;
+ char * const *nargv;
+ const char *ostr;
+{
+ static char *place = EMSG; /* option letter processing */
+ char *oli; /* option letter list index */
+
+ _DIAGASSERT(nargv != NULL);
+ _DIAGASSERT(ostr != NULL);
+
+ if (optreset || !*place) { /* update scanning pointer */
+ optreset = 0;
+ if (optind >= nargc || *(place = nargv[optind]) != '-') {
+ place = EMSG;
+ return (-1);
+ }
+ if (place[1] && *++place == '-') { /* found "--" */
+ /* ++optind; */
+ place = EMSG;
+ return (-2);
+ }
+ } /* option letter okay? */
+ if ((optopt = (int)*place++) == (int)':' ||
+ !(oli = strchr(ostr, optopt))) {
+ /*
+ * if the user didn't specify '-' as an option,
+ * assume it means -1.
+ */
+ if (optopt == (int)'-')
+ return (-1);
+ if (!*place)
+ ++optind;
+ if (opterr && *ostr != ':')
+ (void)fprintf(stderr,
+ "%s: illegal option -- %c\n", __progname(nargv[0]), optopt);
+ 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 ((opterr) && (*ostr != ':'))
+ (void)fprintf(stderr,
+ "%s: option requires an argument -- %c\n",
+ __progname(nargv[0]), optopt);
+ return (BADARG);
+ } else /* white space */
+ optarg = nargv[optind];
+ place = EMSG;
+ ++optind;
+ }
+ return (optopt); /* dump back option letter */
+}
+
+#if 0
+/*
+ * getopt --
+ * Parse argc/argv argument vector.
+ */
+int
+getopt2(nargc, nargv, ostr)
+ int nargc;
+ char * const *nargv;
+ const char *ostr;
+{
+ int retval;
+
+ if ((retval = getopt_internal(nargc, nargv, ostr)) == -2) {
+ retval = -1;
+ ++optind;
+ }
+ return(retval);
+}
+#endif
+
+/*
+ * getopt_long --
+ * Parse argc/argv argument vector.
+ */
+int
+getopt_long(nargc, nargv, options, long_options, index)
+ int nargc;
+ char ** nargv;
+ char * options;
+ struct option * long_options;
+ int * index;
+{
+ int retval;
+
+ _DIAGASSERT(nargv != NULL);
+ _DIAGASSERT(options != NULL);
+ _DIAGASSERT(long_options != NULL);
+ /* index may be NULL */
+
+ if ((retval = getopt_internal(nargc, nargv, options)) == -2) {
+ char *current_argv = nargv[optind++] + 2, *has_equal;
+ int i, current_argv_len, match = -1;
+
+ if (*current_argv == '\0') {
+ return(-1);
+ }
+ if ((has_equal = strchr(current_argv, '=')) != NULL) {
+ current_argv_len = has_equal - current_argv;
+ has_equal++;
+ } else
+ current_argv_len = strlen(current_argv);
+
+ for (i = 0; long_options[i].name; i++) {
+ if (strncmp(current_argv, long_options[i].name, current_argv_len))
+ continue;
+
+ if (strlen(long_options[i].name) == (unsigned)current_argv_len) {
+ match = i;
+ break;
+ }
+ if (match == -1)
+ match = i;
+ }
+ if (match != -1) {
+ if (long_options[match].has_arg == required_argument ||
+ long_options[match].has_arg == optional_argument) {
+ if (has_equal)
+ optarg = has_equal;
+ else
+ optarg = nargv[optind++];
+ }
+ if ((long_options[match].has_arg == required_argument)
+ && (optarg == NULL)) {
+ /*
+ * Missing argument, leading :
+ * indicates no error should be generated
+ */
+ if ((opterr) && (*options != ':'))
+ (void)fprintf(stderr,
+ "%s: option requires an argument -- %s\n",
+ __progname(nargv[0]), current_argv);
+ return (BADARG);
+ }
+ } else { /* No matching argument */
+ if ((opterr) && (*options != ':'))
+ (void)fprintf(stderr,
+ "%s: illegal option -- %s\n", __progname(nargv[0]), current_argv);
+ return (BADCH);
+ }
+ if (long_options[match].flag) {
+ *long_options[match].flag = long_options[match].val;
+ retval = 0;
+ } else
+ retval = long_options[match].val;
+ if (index)
+ *index = match;
+ }
+ return(retval);
+}
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