1*1167Sbill static char *sccsid = "@(#)whoami.c 4.1 (Berkeley) 10/01/80"; 2*1167Sbill #include <pwd.h> 3*1167Sbill /* 4*1167Sbill * whoami 5*1167Sbill */ 6*1167Sbill struct passwd *getpwuid(); 7*1167Sbill 8*1167Sbill main() 9*1167Sbill { 10*1167Sbill register struct passwd *pp; 11*1167Sbill 12*1167Sbill pp = getpwuid(getuid()); 13*1167Sbill if (pp == 0) { 14*1167Sbill printf("Intruder alert.\n"); 15*1167Sbill exit(1); 16*1167Sbill } 17*1167Sbill printf("%s\n", pp->pw_name); 18*1167Sbill exit(0); 19*1167Sbill } 20