1 #include <stdio.h> 2 #include <stdlib.h> 3 #include <unistd.h> 4 #include <sys/types.h> 5 #include <pwd.h> 6 #include <grp.h> 7 #include <selinux/selinux.h> 8 9 static void print_uid(uid_t uid) 10 { 11 struct passwd *pw = getpwuid(uid); 12 13 if (pw) { 14 printf("%d(%s)", uid, pw->pw_name); 15 } else { 16 printf("%d",uid); 17 } 18 } 19 20 static void print_gid(gid_t gid) 21 { 22 struct group *gr = getgrgid(gid); 23 if (gr) { 24 printf("%d(%s)", gid, gr->gr_name); 25 } else { 26 printf("%d",gid); 27 } 28 } 29 30 int id_main(int argc, char **argv) 31 { 32 gid_t list[64]; 33 int n, max; 34 char *secctx; 35 36 max = getgroups(64, list); 37 if (max < 0) max = 0; 38 39 printf("uid="); 40 print_uid(getuid()); 41 printf(" gid="); 42 print_gid(getgid()); 43 if (max) { 44 printf(" groups="); 45 print_gid(list[0]); 46 for(n = 1; n < max; n++) { 47 printf(","); 48 print_gid(list[n]); 49 } 50 } 51 if (getcon(&secctx) == 0) { 52 printf(" context=%s", secctx); 53 free(secctx); 54 } 55 printf("\n"); 56 return 0; 57 } 58
