1 files changed, 159 insertions, 0 deletions
diff --git a/lib/bossac/src/CmdOpts.cpp b/lib/bossac/src/CmdOpts.cpp
new file mode 100644
index 00000000..675f7e1d
--- /dev/null
+++ b/lib/bossac/src/CmdOpts.cpp
@@ -0,0 +1,159 @@
+///////////////////////////////////////////////////////////////////////////////
+// BOSSA
+//
+// Copyright (c) 2011-2018, ShumaTech
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * 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.
+//     * Neither the name of the <organization> 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 COPYRIGHT HOLDERS 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 <COPYRIGHT HOLDER> 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 <stdlib.h>
+#include <getopt.h>
+#include <string.h>
+#include <assert.h>
+
+#include "CmdOpts.h"
+
+CmdOpts::CmdOpts(int argc, char* argv[], int numOpts, Option* opts) :
+    _argc(argc), _argv(argv), _numOpts(numOpts), _opts(opts)
+{
+}
+
+CmdOpts::~CmdOpts()
+{
+}
+
+void
+CmdOpts::usage(FILE* out)
+{
+    int optIdx;
+    char name[40];
+    const char* start;
+    const char* end;
+
+    for (optIdx = 0; optIdx < _numOpts; optIdx++)
+    {
+        if (_opts[optIdx].arg.has == ArgOptional)
+            snprintf(name, sizeof(name), "  -%c, --%s[=%s]",
+                    _opts[optIdx].letter,
+                    _opts[optIdx].name,
+                    _opts[optIdx].arg.name);
+        else if (_opts[optIdx].arg.has == ArgRequired)
+            snprintf(name, sizeof(name), "  -%c, --%s=%s",
+                     _opts[optIdx].letter,
+                     _opts[optIdx].name,
+                     _opts[optIdx].arg.name);
+        else
+            snprintf(name, sizeof(name), "  -%c, --%s",
+                     _opts[optIdx].letter,
+                     _opts[optIdx].name);
+
+        fprintf(out, "%-23s ", name);
+
+        start = _opts[optIdx].help;
+        while ((end = strchr(start, '\n')))
+        {
+            fwrite(start, end - start + 1, 1, out);
+            fprintf(out, "%24s", "");
+            start = end + 1;
+        }
+        fprintf(out, "%s\n", start);
+    }
+}
+
+int
+CmdOpts::parse()
+{
+    struct option long_opts[_numOpts + 1];
+    char optstring[_numOpts * 3 + 1];
+    char* optPtr = optstring;
+    int optIdx;
+    int rc;
+
+    for (optIdx = 0; optIdx < _numOpts; optIdx++)
+    {
+        *_opts[optIdx].present = false;
+
+        *optPtr++ = _opts[optIdx].letter;
+        long_opts[optIdx].name = _opts[optIdx].name;
+        switch (_opts[optIdx].arg.has)
+        {
+        default:
+        case ArgNone:
+            long_opts[optIdx].has_arg = no_argument;
+            break;
+        case ArgOptional:
+            long_opts[optIdx].has_arg = optional_argument;
+            *optPtr++ = ':';
+            *optPtr++ = ':';
+            break;
+        case ArgRequired:
+            long_opts[optIdx].has_arg = required_argument;
+            *optPtr++ = ':';
+            break;
+        }
+        long_opts[optIdx].flag = NULL;
+        long_opts[optIdx].val = 0;
+    }
+
+    memset(&long_opts[_numOpts], 0, sizeof(long_opts[_numOpts]));
+    *optPtr = '\0';
+    optIdx = 0;
+    while ((rc = getopt_long(_argc, _argv, optstring, long_opts, &optIdx)) != -1)
+    {
+        if (rc == '?')
+            return -1;
+
+        if (rc != 0)
+           optIdx = find(rc);
+
+        assert(optIdx >= 0 && optIdx < _numOpts);
+        *_opts[optIdx].present = true;
+        if (_opts[optIdx].arg.has != ArgNone && optarg)
+        {
+            switch (_opts[optIdx].arg.type)
+            {
+            case ArgInt:
+                *_opts[optIdx].arg.value.intPtr = strtol(optarg, NULL, 0);
+                break;
+            default:
+            case ArgString:
+                *_opts[optIdx].arg.value.strPtr = optarg;
+                break;
+            }
+        }
+    }
+
+    return optind;
+}
+
+int
+CmdOpts::find(char letter)
+{
+    int optIdx;
+
+    for (optIdx = 0; optIdx < _numOpts; optIdx++)
+        if (_opts[optIdx].letter == letter)
+            break;
+
+    return optIdx;
+}