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 targetout\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, "\ttargetout - The target out path to query device specific FS configs\n"); 34 fprintf(stderr, "\n"); 35 } 36 37 int 38 main(int argc, const char *argv[]) 39 { 40 char *endptr; 41 char is_dir = 0; 42 unsigned perms = 0; 43 unsigned uid = (unsigned)-1; 44 unsigned gid = (unsigned)-1; 45 46 if (argc < 5) { 47 ERROR("Invalid arguments\n"); 48 print_help(); 49 exit(-1); 50 } 51 52 perms = (unsigned)strtoul(argv[1], &endptr, 0); 53 if (!endptr || (endptr == argv[1]) || (*endptr != '\0')) { 54 ERROR("current permissions must be a number. Got '%s'.\n", argv[1]); 55 exit(-1); 56 } 57 58 if (!strcmp(argv[2], "1")) 59 is_dir = 1; 60 61 uint64_t capabilities; 62 fs_config(argv[3], is_dir, argv[4], &uid, &gid, &perms, &capabilities); 63 fprintf(stdout, "%d %d 0%o\n", uid, gid, perms); 64 65 return 0; 66 } 67
