Initial revision

mj2/compat/getopt.c

@@ -0,0 +1,116 @@
+/*
+ * 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.
+ * 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.
+ */
+
+/* last review : october 29th, 2002 */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)getopt.c	8.3 (Berkeley) 4/27/95";
+#endif				/* LIBC_SCCS and not lint */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+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 */
+
+#define	BADCH	(int)'?'
+#define	BADARG	(int)':'
+#define	EMSG	""
+
+/*
+ * getopt --
+ *	Parse argc/argv argument vector.
+ */
+int getopt(nargc, nargv, ostr)
+int nargc;
+char *const *nargv;
+const char *ostr;
+{
+#  define __progname nargv[0]
+  static char *place = EMSG;	/* option letter processing */
+  char *oli;			/* option letter list index */
+
+  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 (-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 -1.
+     */
+    if (optopt == (int) '-')
+      return (-1);
+    if (!*place)
+      ++optind;
+    if (opterr && *ostr != ':')
+      (void) fprintf(stderr,
+		     "%s: illegal option -- %c\n", __progname, 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 (*ostr == ':')
+	return (BADARG);
+      if (opterr)
+	(void) fprintf(stderr,
+		       "%s: option requires an argument -- %c\n",
+		       __progname, optopt);
+      return (BADCH);
+    } else			/* white space */
+      optarg = nargv[optind];
+    place = EMSG;
+    ++optind;
+  }
+  return (optopt);		/* dump back option letter */
+}

mj2/compat/getopt.h

@@ -0,0 +1,14 @@
+/* last review : october 29th, 2002 */
+
+#ifndef _GETOPT_H_
+#define _GETOPT_H_
+
+extern int opterr;
+extern int optind;
+extern int optopt;
+extern int optreset;
+extern char *optarg;
+
+extern int getopt(int nargc, char *const *nargv, const char *ostr);
+
+#endif				/* _GETOPT_H_ */