add reveng-1.30

[proxmark3-svn] / client / reveng / getopt.c

diff --git a/client/reveng/getopt.c b/client/reveng/getopt.c
new file mode 100644 (file)
index 0000000..55d8e8c
--- /dev/null
+++ b/client/reveng/getopt.c
@@ -0,0 +1,81 @@
+/*----------------------------------------------------------------------
+
+    Replacement for Unix "getopt()", for DOS/Windows/etc.
+
+    getopt.c 1.3 2003/09/17 16:17:59
+
+    Copyright (C) 1998, 2003 by David A. Hinds -- All Rights Reserved
+
+    This file is part of ASPEX.
+
+    ASPEX is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    ASPEX is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with ASPEX; if not, write to the Free Software Foundation,
+    Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+----------------------------------------------------------------------*/
+
+#include "string.h"
+#include "stdio.h"
+#include "getopt.h"
+
+char *optarg;
+int optind = 1, opterr, optopt;
+
+int getopt(int argc, char *argv[], const char *optstring)
+{
+    static int pos = 0;
+    char *str;
+    
+    if (pos == 0) {
+       if ((optind >= argc) || (*argv[optind] != '-'))
+           return EOF;
+       pos = 1;
+       if (argv[optind][pos] == '\0')
+           return EOF;
+    }
+    
+    str = strchr(optstring, argv[optind][pos]);
+    if (str == NULL) {
+       optopt = argv[optind][pos];
+       if (opterr)
+           fprintf(stderr, "%s: illegal option -- %c\n", argv[0],
+                   optopt);
+       return '?';
+    }
+    
+    if (str[1] == ':') {
+       if (argv[optind][pos+1] != '\0') {
+           optarg = &argv[optind][pos+1];
+           return *str;
+       }
+       optind++;
+       if (optind >= argc) {
+           optopt = *str;
+           if (opterr)
+               fprintf(stderr, "%s: option requires an argument -- %c\n",
+                       argv[0], optopt);
+           return '?';
+       }
+       optarg = argv[optind];
+       optind++; pos = 0;
+       return *str;
+    }
+    else {
+       pos++;
+       if (argv[optind][pos] == '\0') {
+           optind++;
+           pos = 0;
+       }
+       return *str;
+    }
+}