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show usage if run outside of extfs context

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Pavol Rusnak 2016-06-01 14:05:53 +02:00
parent 6696dcb985
commit f2c35e9d13
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1 changed files with 7 additions and 1 deletions
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8
tools/encfs_aes_getpass.py
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@ -4,7 +4,7 @@ from __future__ import print_function
''' '''
Use TREZOR as a hardware key for opening EncFS filesystem! Use TREZOR as a hardware key for opening EncFS filesystem!
Demo usage: Usage:
encfs --standard --extpass=./encfs_aes_getpass.py ~/.crypt ~/crypt encfs --standard --extpass=./encfs_aes_getpass.py ~/.crypt ~/crypt
''' '''
@ -72,6 +72,12 @@ def choose_device(devices):
raise Exception("Invalid choice, exiting...") raise Exception("Invalid choice, exiting...")
def main(): def main():
if not 'encfs_root' in os.environ:
sys.stderr.write('\nThis is not a standalone script and is not meant to be run independently.\n')
sys.stderr.write('\nUsage: encfs --standard --extpass=./encfs_aes_getpass.py ~/.crypt ~/crypt\n')
sys.exit(1)
devices = wait_for_devices() devices = wait_for_devices()
transport = choose_device(devices) transport = choose_device(devices)
client = TrezorClient(transport) client = TrezorClient(transport)