NAME

       pam_syslog, pam_vsyslog - send messages to the system logger

SYNOPSIS

       #include <syslog.h>

       #include <security/pam_ext.h>

       void pam_syslog(const pam_handle_t *pamh, int priority, const char *fmt, ...);

       void pam_vsyslog(const pam_handle_t *pamh, int priority, const char *fmt, va_list args);

DESCRIPTION

       The pam_syslog function logs messages using syslog(3) and is intended for internal use by Linux-PAM and
       PAM service modules. The priority argument is formed by ORing the facility and the level values as
       documented in the syslog(3) manual page.

       The pam_vsyslog function performs the same task as pam_syslog() with the difference that it takes a set
       of arguments which have been obtained using the stdarg(3) variable argument list macros.

SEE ALSO

       pam(7)

STANDARDS

       The pam_syslog and pam_vsyslog functions are Linux-PAM extensions.

Linux-PAM                                          09/06/2025                                      PAM_SYSLOG(3)