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I have a program that verifies a users password to the content of /etc/passwd. How do I port this to Interix?

April 26, 2017content interix passwd password port program user verifies

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I have a program that verifies a users password to the content of /etc/passwd. How do I port this to Interix?

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Use the API setuser() instead. One of the flags you can pass to the setuser() API is SU_CHECK to verify a password. When you want to actually change the user we recommend you use setuser() with the SU_COMPLETE flag rather than a set of setuid(), seteuid(), setgid() and setegid() API calls because it is faster and with create a better security token.