syslog in C++/Linux

syslog to write in system log file.

find log config at following place as per your systems
1./etc/logrotate.d/
2./etc/logrotate.conf
3. /etc/syslog.com

Log stored at following locations.
/var/log/syslog

message managed by syslogd daemon.
passed on socket /dev/log.

#include <syslog.h>
don't delete first parameter of openlog.
always makesure before deleted or out of scope of first parameter use closelog call.

void write2syslog(const std::string & str) { setlogmask (LOG_UPTO (LOG_NOTICE)); openlog ("mydaemon", LOG_CONS | LOG_PID | LOG_NDELAY, LOG_LOCAL1); //syslog (LOG_NOTICE, "Program started by User %d", getuid ()); syslog (LOG_INFO, str.c_str()); closelog (); }