user/shutils/logname.c

   1 #include <unistd.h>
   2 #include <pwd.h>
   3 #include <sys/types.h>
   4
   5 int
   6 main (void)
   7 {
   8         register struct passwd * upw = getpwuid(getuid());
   9
  10         if (upw) {
  11                 write(STDOUT_FILENO,upw->pw_name,strlen(upw->pw_name));
  12                 write(STDOUT_FILENO,"\n",1);
  13                 exit (0);
  14         }
  15         exit (1);
  16 }