memcheck/tests/linux/syslog-syscall.c

   1 /** Test program for the syslog() system call.
   2  *  From the syslog(2) man page:
   3  *    If you need the libc function syslog()  (which  talks  to  syslogd(8)),
   4  *    then look at syslog(3).  The system call of this name is about control-
   5  *    ling the kernel printk()  buffer,  and  the  glibc  version  is  called
   6  *    klogctl().
   7  */
   8
   9 #include "../../config.h"
  10 #include <stdio.h>
  11 #if defined(HAVE_SYS_KLOG_H)
  12 #include <sys/klog.h>
  13 #endif
  14
  15 int main(int argc, char** argv)
  16 {
  17   int number_of_unread_characters;
  18 #if defined HAVE_KLOGCTL
  19   number_of_unread_characters = klogctl(9, 0, 0);
  20 #endif
  21   fprintf(stderr, "Done.\n");
  22   return 0 * number_of_unread_characters;
  23 }