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-rw-r--r--libraries/liblutil/getopt.c136
1 files changed, 136 insertions, 0 deletions
diff --git a/libraries/liblutil/getopt.c b/libraries/liblutil/getopt.c
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+/* getopt.c -- replacement getopt(3) routines */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 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 */