auth_passwd - Change account's password
rc=auth_passwd(const char *service,
const char *username,
const char *oldpassword,
const char *newpassword);
If username's password is oldpassword, it is replaced with
newpassword. service identifies which so-called
"service"'s password is changed; like “imap” or
“pop3”. Some Courier authentication library's back-end module
can use different passwords for different services. service is ignored
if this is not the case.
auth_passwd returns 0 if the password was succesfully changed. A non-0
error code indicates a failure..