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Parse out major/minor device from character and block device inodes.

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This commit is contained in:
Andreas Kling 2018-10-14 02:24:12 +02:00
parent 03a0dc0103
commit fa3b11ac64
Notes: sideshowbarker 2024-07-19 18:48:30 +09:00
4 changed files with 21 additions and 1 deletions
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6
VirtualFileSystem/Ext2FileSystem.cpp
View file

@ -186,6 +186,12 @@ InodeMetadata Ext2FileSystem::inodeMetadata(InodeIdentifier inode) const
metadata.ctime = e2inode->i_ctime;
metadata.mtime = e2inode->i_mtime;
metadata.dtime = e2inode->i_dtime;
if (isBlockDevice(e2inode->i_mode) || isCharacterDevice(e2inode->i_mode)) {
unsigned dev = e2inode->i_block[0];
metadata.majorDevice = (dev & 0xfff00) >> 8;
metadata.minorDevice= (dev & 0xff) | ((dev >> 12) & 0xfff00);
}
return metadata;
}

2
VirtualFileSystem/InodeMetadata.h
View file

@ -37,6 +37,8 @@ struct InodeMetadata {
time_t ctime { 0 };
time_t mtime { 0 };
time_t dtime { 0 };
unsigned majorDevice { 0 };
unsigned minorDevice { 0 };
};

2
VirtualFileSystem/Makefile
View file

@ -18,6 +18,8 @@ VFS_OBJS = \
DeviceBackedFileSystem.o \
SyntheticFileSystem.o \
InodeIdentifier.o \
CharacterDevice.o \
ZeroDevice.o \
test.o
OBJS = $(AK_OBJS) $(VFS_OBJS)

12
VirtualFileSystem/VirtualFileSystem.cpp
View file

@ -199,6 +199,10 @@ void VirtualFileSystem::listDirectory(const String& path)
nameColorBegin = "\033[42;30m";
nameColorEnd = "\033[0m";
}
if (metadata.isCharacterDevice() || metadata.isBlockDevice()) {
nameColorBegin = "\033[33;1m";
nameColorEnd = "\033[0m";
}
printf("%02u:%08u ",
metadata.inode.fileSystemID(),
metadata.inode.index());
@ -236,7 +240,13 @@ void VirtualFileSystem::listDirectory(const String& path)
else
printf("%c", metadata.mode & 00001 ? 'x' : '-');
printf("%12u ", metadata.size);
if (metadata.isCharacterDevice() || metadata.isBlockDevice()) {
char buf[16];
sprintf(buf, "%u, %u", metadata.majorDevice, metadata.minorDevice);
printf("%12s ", buf);
} else {
printf("%12u ", metadata.size);
}
printf("\033[30;1m");
auto tm = *localtime(&metadata.mtime);