1 #include <stdlib.h> 2 #include <stdio.h> 3 #include <string.h> 4 #include <unistd.h> 5 6 #include <private/android_filesystem_config.h> 7 8 #define DO_DEBUG 1 9 10 #define ERROR(fmt,args...) \ 11 do { \ 12 fprintf(stderr, "%s:%d: ERROR: " fmt, \ 13 __FILE__, __LINE__, ##args); \ 14 } while (0) 15 16 #if DO_DEBUG 17 #define DEBUG(fmt,args...) \ 18 do { fprintf(stderr, "DEBUG: " fmt, ##args); } while(0) 19 #else 20 #define DEBUG(x...) do {} while(0) 21 #endif 22 23 void 24 print_help(void) 25 { 26 fprintf(stderr, "fs_get_stats: retrieve the target file stats " 27 "for the specified file\n"); 28 fprintf(stderr, "usage: fs_get_stats cur_perms is_dir filename\n"); 29 fprintf(stderr, "\tcur_perms - The current permissions of " 30 "the file\n"); 31 fprintf(stderr, "\tis_dir - Is filename is a dir, 1. Otherwise, 0.\n"); 32 fprintf(stderr, "\tfilename - The filename to lookup\n"); 33 fprintf(stderr, "\n"); 34 } 35 36 int 37 main(int argc, const char *argv[]) 38 { 39 char *endptr; 40 char is_dir = 0; 41 unsigned perms = 0; 42 unsigned uid = (unsigned)-1; 43 unsigned gid = (unsigned)-1; 44 45 if (argc < 4) { 46 ERROR("Invalid arguments\n"); 47 print_help(); 48 exit(-1); 49 } 50 51 perms = (unsigned)strtoul(argv[1], &endptr, 0); 52 if (!endptr || (endptr == argv[1]) || (*endptr != '\0')) { 53 ERROR("current permissions must be a number. Got '%s'.\n", argv[1]); 54 exit(-1); 55 } 56 57 if (!strcmp(argv[2], "1")) 58 is_dir = 1; 59 60 fs_config(argv[3], is_dir, &uid, &gid, &perms); 61 fprintf(stdout, "%d %d 0%o\n", uid, gid, perms); 62 63 return 0; 64 } 65
