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Fix extfs FUSE backend missing symbolic link support.

This commit is contained in:
Jonas 'Sortie' Termansen 2015-02-16 15:27:58 +01:00
parent be1585488d
commit e0ee3017e1
1 changed files with 19 additions and 7 deletions
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26
ext/extfs.cpp
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@ -848,10 +848,19 @@ int ext2_fuse_fgetattr(const char* /*path*/, struct stat* st,
int ext2_fuse_readlink(const char* path, char* buf, size_t bufsize) int ext2_fuse_readlink(const char* path, char* buf, size_t bufsize)
{ {
(void) path; Inode* inode = ext2_fuse_resolve_path(path);
(void) buf; if ( !inode )
(void) bufsize; return -errno;
return -(errno = ENOSYS); if ( !EXT2_S_ISLNK(inode->Mode()) )
return inode->Unref(), -(errno = EINVAL);
if ( !bufsize )
return inode->Unref(), -(errno = EINVAL);
ssize_t amount = inode->ReadAt((uint8_t*) buf, bufsize, 0);
if ( amount < 0 )
return inode->Unref(), -errno;
buf[(size_t) amount < bufsize ? (size_t) bufsize : bufsize - 1] = '\0';
inode->Unref();
return 0;
} }
int ext2_fuse_mknod(const char* path, mode_t mode, dev_t dev) int ext2_fuse_mknod(const char* path, mode_t mode, dev_t dev)
@ -900,9 +909,12 @@ int ext2_fuse_rmdir(const char* path)
int ext2_fuse_symlink(const char* oldname, const char* newname) int ext2_fuse_symlink(const char* oldname, const char* newname)
{ {
(void) oldname; Inode* newdir = ext2_fuse_parent_dir(&newname);
(void) newname; if ( !newdir )
return -(errno = ENOSYS); return -errno;
bool success = newdir->Symlink(newname, oldname);
newdir->Unref();
return success ? 0 : -errno;
} }
int ext2_fuse_rename(const char* oldname, const char* newname) int ext2_fuse_rename(const char* oldname, const char* newname)