pam_syslog 3 Linux-PAM Manual pam_syslog pam_vsyslog send messages to the system logger #include <syslog.h> #include <security/pam_ext.h> void pam_syslog pam_handle_t *pamh int priority const char *fmt ... void pam_vsyslog pam_handle_t *pamh int priority const char *fmt va_list args The pam_syslog function logs messages using syslog3 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 syslog3 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 stdarg3 variable argument list macros. pam8 The pam_syslog and pam_vsyslog functions are Linux-PAM extensions.