stat.c (2311B)
1 /* See LICENSE file for copyright and license details. */ 2 #include <sys/stat.h> 3 #include <sys/types.h> 4 5 #include <inttypes.h> 6 #include <stdio.h> 7 #include <stdlib.h> 8 #include <time.h> 9 #include <unistd.h> 10 11 #include "util.h" 12 13 static void 14 show_stat_terse(const char *file, struct stat *st) 15 { 16 printf("%s ", file); 17 printf("%lu %lu ", (unsigned long)st->st_size, 18 (unsigned long)st->st_blocks); 19 printf("%04o %u %u ", st->st_mode & 0777, st->st_uid, st->st_gid); 20 printf("%llx ", (unsigned long long)st->st_dev); 21 printf("%lu %lu ", (unsigned long)st->st_ino, (unsigned long)st->st_nlink); 22 printf("%d %d ", major(st->st_rdev), minor(st->st_rdev)); 23 printf("%ld %ld %ld ", st->st_atime, st->st_mtime, st->st_ctime); 24 printf("%lu\n", (unsigned long)st->st_blksize); 25 } 26 27 static void 28 show_stat(const char *file, struct stat *st) 29 { 30 char buf[100]; 31 32 printf(" File: ‘%s’\n", file); 33 printf(" Size: %lu\tBlocks: %lu\tIO Block: %lu\n", (unsigned long)st->st_size, 34 (unsigned long)st->st_blocks, (unsigned long)st->st_blksize); 35 printf("Device: %xh/%ud\tInode: %lu\tLinks %lu\n", major(st->st_dev), 36 minor(st->st_dev), (unsigned long)st->st_ino, (unsigned long)st->st_nlink); 37 printf("Access: %04o\tUid: %u\tGid: %u\n", st->st_mode & 0777, st->st_uid, st->st_gid); 38 strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", localtime(&st->st_atime)); 39 printf("Access: %s\n", buf); 40 strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", localtime(&st->st_mtime)); 41 printf("Modify: %s\n", buf); 42 strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", localtime(&st->st_ctime)); 43 printf("Change: %s\n", buf); 44 } 45 46 static void 47 usage(void) 48 { 49 eprintf("usage: %s [-L] [-t] [file...]\n", argv0); 50 } 51 52 int 53 main(int argc, char *argv[]) 54 { 55 struct stat st; 56 int i, ret = 0; 57 int (*fn)(const char *, struct stat *) = lstat; 58 char *fnname = "lstat"; 59 void (*showstat)(const char *, struct stat *) = show_stat; 60 61 ARGBEGIN { 62 case 'L': 63 fn = stat; 64 fnname = "stat"; 65 break; 66 case 't': 67 showstat = show_stat_terse; 68 break; 69 default: 70 usage(); 71 } ARGEND; 72 73 if (argc == 0) { 74 if (fstat(0, &st) < 0) 75 eprintf("stat <stdin>:"); 76 show_stat("<stdin>", &st); 77 } 78 79 for (i = 0; i < argc; i++) { 80 if (fn(argv[i], &st) == -1) { 81 weprintf("%s %s:", fnname, argv[i]); 82 ret = 1; 83 continue; 84 } 85 showstat(argv[i], &st); 86 } 87 88 return ret; 89 }