The
openpam_log function logs messages using
syslog(3). It is primarily intended for internal use by the library and modules.
The
level argument indicates the importance of the message. The following levels are defined:
PAM_LOG_DEBUG
Debugging messages. These messages are normally not logged unless the global integer variable
_openpam_debug is set to a non-zero value, in which case they are logged with a
syslog(3) priority of
LOG_DEBUG.
PAM_LOG_VERBOSE
Information about the progress of the authentication process, or other non-essential messages. These messages are logged with a
syslog(3) priority of
LOG_INFO.
PAM_LOG_NOTICE
Messages relating to non-fatal errors. These messages are logged with a
syslog(3) priority of
LOG_NOTICE.
PAM_LOG_ERROR
Messages relating to serious errors. These messages are logged with a
syslog(3) priority of
LOG_ERR.
The remaining arguments are a
printf(3) format string and the corresponding arguments.