def stat(name):
fd = open_(name, O_RDONLY)
if fd < 0:
return -1
r, st = fstat(fd)
close(fd)
return r, st
def ls(path):
fd = open_(path, 0)
if fd < 0:
printf(2, "ls: cannot open %s\n", path)
return
n, st = fstat(fd)
if n < 0:
printf(2, "ls: cannot stat %s\n", path)
close(fd)
return
if st.type == T_FILE:
printf(1, "%s %d %d %d\n", fmtname(path), st.type, st.ino, st.size)
elif st.type == T_DIR:
if strlen(path) + 1 + DIRSIZ + 1 > 512:
printf(1, "ls: path too long\n")
else:
prefix = path + "/"
#while (read(fd, &de, sizeof(de)) == sizeof(de))
while True:
n, de = read(fd, 20) # @@@ 20 = sizeof(de)
if n != 20:
break
de_inum = int(de[:6])
de_name = de[6:].strip() # @@@
if de_inum == 0:
continue
path = prefix + de_name
n, st = stat(path)
if n < 0:
printf(1, "ls: cannot stat %s\n", path)
continue
printf(1, "%s %d %d %d\n", fmtname(path), st.type, st.ino, st.size)
close(fd)
