Manual Pages for UNIX Operating System command usage for man vsyslog

Standard C Library Functions                          vsyslog(3C)



NAME
     vsyslog - log message with a stdarg argument list

SYNOPSIS
     #include 
     #include 

     void vsyslog(int priority, const char *message, va_list ap);


DESCRIPTION
     The vsyslog() function is identical  to  syslog(3C),  except
     that  it  is  called  with  an  argument  list as defined by
      rather than with a variable number of arguments.

EXAMPLES
     Example 1 Use vsyslog() to write an error routine.


     The following example demonstrates the use of  vsyslog()  in
     writing an error routine.


       #include 
       #include 

       /*
        * error should be called like:
        *   error(pri, function_name, format, arg1, arg2...);
        */

       void
       error(int pri, char *function_name, char *format, ...)
       {
               va_list args;

               va_start(args, format);
               /* log name of function causing error */
               (void) syslog(pri, "ERROR in %s.", function_name);
               /* log remainder of message */
               (void) vsyslog(pri, format, args);
               va_end(args);
               (void) abort( );
       }

       main()
       {
               error(LOG_ERR, "main", "process %d is dying", getpid());
       }






SunOS 5.11          Last change: 30 Aug 2006                    1






Standard C Library Functions                          vsyslog(3C)



ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | MT-Level                    | Safe                        |
    |_____________________________|_____________________________|


SEE ALSO
     syslog(3C), attributes(5)








































SunOS 5.11          Last change: 30 Aug 2006                    2