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Subject: pam_get_user() query
From: David Wragg (dpwdoc.ic.ac.uk)
Date: Tue Feb 15 2000 - 14:23:18 CST

The Module Writers' Guide says that the storage for the username given
by pam_get_user() will be freed at pam_end(), unsurprisingly, or at
the next call to pam_get_user(), which is surprising to me. Assuming
that the username cannot change between pam_start() and pam_end(), why
wouldn't pam_get_user() just return a pointer to the same storage on
every call? (Which is how it works in the current Linux-PAM source).

Am I missing something, or does this provision come from some
preexisting PAM spec? If not, I'd like to suggest a change to the
relevant paragraph, so that the module I'm working on can rely on the
username asociated with a pam_handle_t being fixed.

David Wragg 

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