Coded by Jonas Sundstr��m

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1397 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/bin/df.cpp

@@ -0,0 +1,203 @@
+//	df - for OpenBeOS
+//
+//	authors, in order of contribution:
+//	[email protected]
+//
+
+#include <stdio.h>
+#include <string.h>
+
+#include <String.h>
+#include <fs_info.h>
+#include <fs_index.h>
+
+#include <Volume.h>
+#include <Directory.h>
+#include <Path.h>
+
+
+void	PrintUsageInfo	(void);
+void	PrintFlagSupport (uint32 dev_flags, uint32 test_flag, char * flag_descr, bool verbose);
+void	PrintMountPoint (dev_t dev_num, bool verbose);
+void	PrintType (const char * fsh_name);
+void	PrintBlocks (int64 blocks);
+
+int	main (int32 argc, char **argv)
+{
+	bool verbose	=	false;
+
+	if (argc > 1)	
+	{
+		BString option	=	argv[1];
+		option.ToLower();
+		
+		if (option == "--help")
+		{
+			PrintUsageInfo();
+			return (0);
+		}
+		
+		if (option == "--verbose")
+		{
+			verbose	=	true;
+		}
+	}
+
+	if (! verbose)
+	{
+		printf( "Mount            Type     Total    Free     Flags   Device\n"
+				"---------------- -------- -------- -------- ------- --------------------------\n");
+	}
+	
+	dev_t		device_num	=	0;
+	int32		cookie		=	0;
+	fs_info		info;
+
+	while (1)
+	{
+		device_num =	next_dev(& cookie);
+		
+		if (device_num != B_BAD_VALUE)
+		{	
+			if(fs_stat_dev(device_num, &info) == B_OK)
+			{
+				if (verbose)
+				{
+					PrintMountPoint (info.dev, verbose);
+					
+					printf("device: %ld\n",			info.dev);
+					printf("volume_name: %s\n",		info.volume_name);
+					printf("fsh_name: %s\n",		info.fsh_name);
+					printf("device_name: %s\n",		info.device_name);
+					printf("flags: %lu\n",			info.flags);
+
+					PrintFlagSupport (info.flags, B_FS_HAS_MIME, "mimetypes:", verbose);
+					PrintFlagSupport (info.flags, B_FS_HAS_ATTR, "attributes:", verbose);
+					PrintFlagSupport (info.flags, B_FS_HAS_QUERY, "queries:", verbose);
+					PrintFlagSupport (info.flags, B_FS_IS_READONLY, "readonly:", verbose);
+					PrintFlagSupport (info.flags, B_FS_IS_REMOVABLE, "removable:", verbose);
+					PrintFlagSupport (info.flags, B_FS_IS_PERSISTENT, "persistent:", verbose);
+					PrintFlagSupport (info.flags, B_FS_IS_SHARED, "shared:", verbose);
+					
+					printf("block_size: %Ld\n",		info.block_size);
+					printf("io_size: %Ld\n",		info.io_size);
+					printf("total_blocks: %Ld\n",	info.total_blocks);
+					printf("free_blocks: %Ld\n",	info.free_blocks);
+					printf("total_nodes: %Ld\n",	info.total_nodes);
+					printf("free_nodes: %Ld\n",		info.free_nodes);
+					printf("root inode: %Ld\n",		info.root);	
+					
+					
+					printf("--------------------------------\n");
+				}
+				else // compact, default mode
+				{
+					PrintMountPoint (info.dev, verbose);
+					PrintType(info.fsh_name);
+					PrintBlocks(info.total_blocks);
+					PrintBlocks(info.free_blocks);
+
+					PrintFlagSupport (info.flags, B_FS_HAS_QUERY, "Q", verbose);
+					PrintFlagSupport (info.flags, B_FS_HAS_ATTR, "A", verbose);
+					PrintFlagSupport (info.flags, B_FS_HAS_MIME, "M", verbose);
+					PrintFlagSupport (info.flags, B_FS_IS_SHARED, "S", verbose);
+					PrintFlagSupport (info.flags, B_FS_IS_PERSISTENT, "P", verbose);
+					PrintFlagSupport (info.flags, B_FS_IS_REMOVABLE, "R", verbose);
+					PrintFlagSupport (info.flags, B_FS_IS_READONLY, NULL, verbose);
+
+					printf(" ");
+					printf("%s\n",		info.device_name);
+					
+				}
+			}
+		}
+		else
+			break;
+	}
+
+	return (0);
+}
+
+void PrintUsageInfo (void)
+{
+	printf ("usage: df [--verbose | --help]\n"
+			"  flags:\n"
+			"   Q: has query\n"
+			"   A: has attribute\n"
+			"   M: has mime\n"
+			"   S: is shared\n"
+			"   R: is removable\n"
+			"   W: is writable\n"
+			);
+}
+
+void PrintFlagSupport (uint32 dev_flags, uint32 test_flag, char * flag_descr, bool verbose)
+{
+	if (verbose)
+	{
+		if	(dev_flags & test_flag)
+			printf("%s yes\n", flag_descr);
+		else
+			printf("%s no\n", flag_descr);
+	}
+	else
+	{
+		if (test_flag == B_FS_IS_READONLY)
+		{
+			if	(dev_flags & test_flag)
+				printf("-");
+			else
+				printf("W");
+			return;
+		}
+	
+		if	(dev_flags & test_flag)
+			printf("%s", flag_descr);
+		else
+			printf("-");
+	}
+}
+
+void PrintMountPoint (dev_t dev_num, bool verbose)
+{
+	BString		mounted_at	=	"                 ";
+	BVolume		volume (dev_num);
+	BDirectory	vol_dir;
+	volume.GetRootDirectory(& vol_dir);
+	BPath	path	(& vol_dir, NULL);
+	mounted_at.Insert(path.Path(), 0);
+
+	if (verbose)
+	{
+		printf("Mounted at: %s\n", mounted_at.String());
+	}
+	else
+	{
+		mounted_at.Truncate(17);
+		printf("%s", mounted_at.String());
+	}
+}
+
+void PrintType (const char * fsh_name)
+{
+	BString		type	=	"         ";
+	type.Insert(fsh_name, 0);
+
+	type.Truncate(9);
+	printf("%s", type.String());
+}
+
+void PrintBlocks (int64 blocks)
+{
+	char * temp	=	new char [1024];
+	sprintf(temp, "%Ld", blocks);
+	
+	BString		type	=	"         ";
+	type.Insert(temp, 8 - strlen(temp));
+
+	type.Truncate(9);
+	printf("%s", type.String());
+
+	delete [] temp;
+}
+