def deltree_lind(dirname):
# took part of the code from _find_all_paths_recursively method below.
# It recursively looks at all child dirs
# I need to open the dir to use getdents...
dirfd = lind_test_server.open_syscall(dirname,0,0)
# build a list of all dents. These have an odd format:
# [(inode, filename, d_type (DT_DIR, DR_REG, etc.), length of entry), ...]
# We only care about the filename and d_type.
mydentslist = []
# Note: the length parameter is odd, it's related to data structure space, so
# it doesn't map to python cleanly. So long as it's > the largest possible
# entry size, this code should work though.
thesedents = lind_test_server.getdents_syscall(dirfd,10000)
while thesedents:
mydentslist += thesedents
thesedents = lind_test_server.getdents_syscall(dirfd,10000)
lind_test_server.close_syscall(dirfd)
for dent in mydentslist:
# ignore '.' and '..' because they aren't interesting and we don't want
# to loop forever.
if dent[1]=='.' or dent[1]=='..':
continue
thisitem = (dent[0], dirname+'/'+dent[1])
print "deleting",thisitem[1]
# if it's a directory, recurse...
if dent[2]==DT_DIR:
deltree_lind(thisitem[1])
else:
lind_test_server.unlink_syscall(thisitem[1])
lind_test_server.rmdir_syscall(dirname)
return
def main():
# I can be imported as a module too!!!
if len(sys.argv)==1:
print_usage()
return
command = sys.argv[1]
args = sys.argv[2:]
#help : print this message
#usage : print this message
if command == 'help' or command == 'usage':
print_usage()
#cp root file1 [file2...] : copies files from the root into the lindfs. For
# example, cp bar /etc/passwd /bin/ls will copy
# bar/etc/passwd, bar/bin/ls as /etc/passwd, /bin/ls
elif command == 'cp':
lind_test_server.load_fs()
if len(args)<2:
print 'Too few arguments to cp. Must specify root and at least one file'
return
root = args[0]
for filetocp in args[1:]:
cp_into_lind(filetocp, rootpath=root)
#find [startingpath] : print the names of all files / paths in the fs
# This is much like 'find /'
elif command == 'find':
lind_test_server.load_fs()
if len(args)>1:
print 'Too many arguments to find. Takes an optional path'
return
elif len(args) == 0:
startingpath = '/'
elif len(args)==1:
startingpath = args[0]
allpathlist = list_all_lind_paths(startingdir=startingpath)
# want to print this more cleanly than as a list
for thispath in allpathlist:
print thispath
#format : make a new blank fs, removing the current one.
elif command == 'format':
lind_test_server._blank_fs_init()
#deltree dirname : delete a directory and all it contains
elif command == 'deltree':
lind_test_server.load_fs()
if len(args)!= 1:
print 'deltree takes exactly one argument, the dir to remove'
return
print 'Unimplemented...'
#rm file1 [file2...] : delete a file
elif command == 'rm':
lind_test_server.load_fs()
if len(args) == 0:
print 'rm takes one or more arguments'
return
for filename in args:
lind_test_server.unlink_syscall(filename)
#mkdir dir1 [dir2...] : create a directory
elif command == 'mkdir':
lind_test_server.load_fs()
if len(args) == 0:
print 'mkdir takes one or more arguments'
return
for dirname in args:
lind_test_server.mkdir_syscall(dirname,S_IRWXA)
#rmdir dir1 [dir2...] : delete a directory
elif command == 'rmdir':
lind_test_server.load_fs()
if len(args) == 0:
print 'rmdir takes one or more arguments'
return
for dirname in args:
lind_test_server.rmdir_syscall(dirname)
# OTHERWISE?
else:
print "ERROR: command unknown"
print
print_usage()
return
def rmdir(self, path):
log("rmdir", path)
try:
ret = lind.rmdir_syscall(path)
except lind.SyscallError, e:
ret = -errno[e[1]]
def main():
# I can be imported as a module too!!!
if len(sys.argv)==1:
print_usage()
return
command = sys.argv[1]
args = sys.argv[2:]
#help : print this message
#usage : print this message
if command == 'help' or command == 'usage':
print_usage()
#cp root file1 [file2...] : copies files from the root into the lindfs. For
# example, cp bar /etc/passwd /bin/ls will copy
# bar/etc/passwd, bar/bin/ls as /etc/passwd, /bin/ls
elif command == 'cp':
lind_test_server.load_fs()
if len(args)<2:
print 'Too few arguments to cp. Must specify root and at least one file'
return
root = args[0]
for filetocp in args[1:]:
cp_dir_into_lind(filetocp, rootpath=root)
#update root file1 [file2...] : copies files from the root into the lindfs if they are different. For
# example, cp bar /etc/passwd /bin/ls will copy
# bar/etc/passwd, bar/bin/ls as /etc/passwd, /bin/ls
elif command == 'update':
lind_test_server.load_fs()
if len(args)<2:
print 'Too few arguments to update. Must specify root and at least one file'
return
root = args[0]
for filetoup in args[1:]:
update_dir_into_lind(filetoup, rootpath=root)
#find [startingpath] : print the names of all files / paths in the fs
# This is much like 'find /'
elif command == 'find':
lind_test_server.load_fs()
if len(args)>1:
print 'Too many arguments to find. Takes an optional path'
return
elif len(args) == 0:
startingpath = '/'
elif len(args)==1:
startingpath = args[0]
allpathlist = list_all_lind_paths(startingdir=startingpath)
# want to print this more cleanly than as a list
#for thispath in allpathlist:
# print thispath
#format : make a new blank fs, removing the current one.
elif command == 'format':
lind_test_server._blank_fs_init()
#deltree dirname : delete a directory and all it contains
elif command == 'deltree':
lind_test_server.load_fs()
if len(args)!= 1:
print 'deltree takes exactly one argument, the dir to remove'
return
deltree_lind(args[0])
#rm file1 [file2...] : delete a file
elif command == 'rm':
lind_test_server.load_fs()
if len(args) == 0:
print 'rm takes one or more arguments'
return
for filename in args:
lind_test_server.unlink_syscall(filename)
#mkdir dir1 [dir2...] : create a directory
elif command == 'mkdir':
lind_test_server.load_fs()
if len(args) == 0:
print 'mkdir takes one or more arguments'
return
for dirname in args:
lind_test_server.mkdir_syscall(dirname,S_IRWXA)
#rmdir dir1 [dir2...] : delete a directory
elif command == 'rmdir':
lind_test_server.load_fs()
if len(args) == 0:
print 'rmdir takes one or more arguments'
return
for dirname in args:
lind_test_server.rmdir_syscall(dirname)
# OTHERWISE?
else:
print "ERROR: command unknown"
print
print_usage()
return
import lind_test_server
from lind_fs_constants import *
# Let's add a few directories to the system and see if it works...
lind_test_server._blank_fs_init()
lind_test_server.mkdir_syscall('/bar',S_IRWXA)
lind_test_server.mkdir_syscall('/bar/baz',S_IRWXA)
lind_test_server.access_syscall('/bar/baz',F_OK)
# should not be able
try:
lind_test_server.rmdir_syscall('/bar')
except:
pass
else:
print 'could remove directory with items inside!!!'
lind_test_server.rmdir_syscall('/bar/baz')
try:
lind_test_server.access_syscall('/bar/baz',F_OK)
except:
pass
else:
print 'error! Directory exists after removal'
import lind_test_server
from lind_fs_constants import *
# Let's add a few directories to the system and see if it works...
lind_test_server._blank_fs_init()
lind_test_server.mkdir_syscall('/bar', S_IRWXA)
lind_test_server.mkdir_syscall('/bar/baz', S_IRWXA)
lind_test_server.access_syscall('/bar/baz', F_OK)
# should not be able
try:
lind_test_server.rmdir_syscall('/bar')
except:
pass
else:
print 'could remove directory with items inside!!!'
lind_test_server.rmdir_syscall('/bar/baz')
try:
lind_test_server.access_syscall('/bar/baz', F_OK)
except:
pass
else:
print 'error! Directory exists after removal'
def rmdir(self, path):
log("rmdir", path)
try:
ret = lind.rmdir_syscall(path)
except lind.SyscallError, e:
ret = -errno[e[1]]
