id.c revision dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0
1dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <stdio.h> 2dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <stdlib.h> 3dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <unistd.h> 4dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <sys/types.h> 5dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <pwd.h> 6dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project#include <grp.h> 7dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 8dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void print_uid(uid_t uid) 9dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 10dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct passwd *pw = getpwuid(uid); 11dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 12dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (pw) { 13dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf("%d(%s)", uid, pw->pw_name); 14dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 15dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf("%d",uid); 16dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 17dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 18dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 19dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectstatic void print_gid(gid_t gid) 20dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 21dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project struct group *gr = getgrgid(gid); 22dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (gr) { 23dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf("%d(%s)", gid, gr->gr_name); 24dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } else { 25dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf("%d",gid); 26dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 27dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 28dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 29dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Projectint id_main(int argc, char **argv) 30dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project{ 31dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project gid_t list[64]; 32dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project int n, max; 33dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 34dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project max = getgroups(64, list); 35dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (max < 0) max = 0; 36dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project 37dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf("uid="); 38dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project print_uid(getuid()); 39dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf(" gid="); 40dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project print_gid(getgid()); 41dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project if (max) { 42dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf(" groups="); 43dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project print_gid(list[0]); 44dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project for(n = 1; n < max; n++) { 45dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf(","); 46dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project print_gid(list[n]); 47dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 48dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project } 49dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project printf("\n"); 50dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project return 0; 51dd7bc3319deb2b77c5d07a51b7d6cd7e11b5beb0The Android Open Source Project} 52