syslog_macro.c

#include <stdio.h>
#include <syslog.h>

#define LOG(FORMAT, ...) {\
        openlog(NULL, LOG_CONS | LOG_PID | LOG_NDELAY, LOG_LOCAL1);\
        syslog(LOG_INFO, "%s:%d " FORMAT "\n", __BASE_FILE__, __LINE__, ##__VA_ARGS__);\
        closelog();\
        }

int main()
{
        LOG("asd");
        LOG("%s", "zxc");
}