33,45 → 33,43 |
import sys |
import os |
import struct |
import xstruct |
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HEADER = xstruct.convert("little: char[5]") |
DENTRY = xstruct.convert("little: uint8_t uint32_t") |
SIZE = xstruct.convert("little: uint32_t") |
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DENTRY_NONE = 0 |
DENTRY_FILE = 1 |
DENTRY_DIRECTORY = 2 |
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def usage(prname): |
"Print usage syntax" |
print prname + " <PATH> <IMAGE>" |
print prname + " <ALIGNMENT> <PATH> <IMAGE>" |
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def recursion(root, outf): |
"Recursive directory walk" |
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payload_size = 0 |
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for name in os.listdir(root): |
canon = os.path.join(root, name) |
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if (os.path.isfile(canon)): |
outf.write(struct.pack(DENTRY, DENTRY_FILE, len(name))) |
outf.write(xstruct.little_string(name)) |
outf.write(struct.pack("<BL" + ("%d" % len(name)) + "s", 1, len(name), name)) |
payload_size += 5 + len(name) |
size = os.path.getsize(canon) |
rd = 0; |
outf.write(struct.pack(SIZE, size)) |
outf.write(struct.pack("<L", size)) |
payload_size += 4 |
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inf = file(canon, "r") |
while (rd < size): |
data = inf.read(4096); |
outf.write(data) |
payload_size += len(data) |
rd += len(data) |
inf.close() |
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if (os.path.isdir(canon)): |
outf.write(struct.pack(DENTRY, DENTRY_DIRECTORY, len(name))) |
outf.write(xstruct.little_string(name)) |
recursion(canon, outf) |
outf.write(struct.pack(DENTRY, DENTRY_NONE, 0)) |
outf.write(struct.pack("<BL" + ("%d" % len(name)) + "s", 2, len(name), name)) |
payload_size += 5 + len(name) |
payload_size += recursion(canon, outf) |
outf.write(struct.pack("<BL", 0, 0)) |
payload_size += 5 |
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return payload_size |
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def main(): |
if (len(sys.argv) < 3): |
85,9 → 83,9 |
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outf = file(sys.argv[2], "w") |
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outf.write(struct.pack(HEADER, "TMPFS")) |
outf.write(struct.pack("<5s", "TMPFS")) |
recursion(path, outf) |
outf.write(struct.pack(DENTRY, DENTRY_NONE, 0)) |
outf.write(struct.pack("<BL", 0, 0)) |
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outf.close() |
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