/ Published in: Python
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# Get the UID the application was started with # which must have been 'root' if you want this process # to have 'root' like abilities. privUID = os.geteuid() # Get the UID that the application should use for # most of its processing, 'nobody' is usually # a good choice. normalUID = pwd.getpwnam( 'nobody' )[2] def runAsNormal(): """Switch this process to normal privileges, we shouldn't be able to do anything naughty in this mode.""" os.seteuid( normalUID ) def runAsPrivileged(): """Switch to super user privileges, here we can do anything we want.""" os.seteuid( privUID ) # Once program has initialized, drop privileges runAsNormal() # ... some normal application code... # Do do something that requires super user privileges try: runAsPrivileged() # ... do the stuff we need to be super for finally: # Switch out of super mode and back to normal runAsNormal()
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