Added initial Macintosh source.

mac-cpp-source/macos/mac_vol.cpp

@@ -0,0 +1,38 @@
+#include <stdio.h>
+#include <Files.h>
+#include "mac_vol.h"
+
+void mac_list_volumes() {
+    HParamBlockRec paramBlock;
+    Str255 volName;
+    
+    paramBlock.volumeParam.ioCompletion = 0;
+    paramBlock.volumeParam.ioNamePtr = volName;
+    paramBlock.volumeParam.ioVRefNum = 0;
+    paramBlock.volumeParam.ioVolIndex = 0;
+    for (;;) {
+		OSErr err = PBHGetVInfo(&paramBlock, false);
+		if (err == nsvErr) break;
+		printf("   %d: %#s\n", paramBlock.volumeParam.ioVolIndex, paramBlock.volumeParam.ioNamePtr);
+		paramBlock.volumeParam.ioVolIndex++;
+	}
+}
+
+void mac_unmount(int id) {
+	HParamBlockRec paramBlock;
+    paramBlock.volumeParam.ioCompletion = 0;
+    paramBlock.volumeParam.ioNamePtr = 0;
+    paramBlock.volumeParam.ioVRefNum = 0;
+    paramBlock.volumeParam.ioVolIndex = id;
+    OSErr err = PBHGetVInfo(&paramBlock, false);
+	if (err == nsvErr) {
+		printf("No such volume\n");
+		return;
+	}
+	err = UnmountVol(0, paramBlock.volumeParam.ioVRefNum);
+	switch (err) {
+	    case noErr: printf("Okay\n"); break;
+		case fBsyErr: printf("One or more files are open\n"); break;
+		default: printf("Failed %d\n", err);
+	}
+}

mac-cpp-source/macos/mac_vol.h

@@ -0,0 +1,2 @@
+void mac_list_volumes();
+void mac_unmount(int id);