stat.c (2338B)
1 /* See LICENSE file for copyright and license details. */ 2 #include <sys/stat.h> 3 #include <sys/sysmacros.h> 4 #include <sys/types.h> 5 6 #include <inttypes.h> 7 #include <stdio.h> 8 #include <stdlib.h> 9 #include <time.h> 10 #include <unistd.h> 11 12 #include "util.h" 13 14 static void 15 show_stat_terse(const char *file, struct stat *st) 16 { 17 printf("%s ", file); 18 printf("%lu %lu ", (unsigned long)st->st_size, 19 (unsigned long)st->st_blocks); 20 printf("%04o %u %u ", st->st_mode & 0777, st->st_uid, st->st_gid); 21 printf("%llx ", (unsigned long long)st->st_dev); 22 printf("%lu %lu ", (unsigned long)st->st_ino, (unsigned long)st->st_nlink); 23 printf("%d %d ", major(st->st_rdev), minor(st->st_rdev)); 24 printf("%ld %ld %ld ", st->st_atime, st->st_mtime, st->st_ctime); 25 printf("%lu\n", (unsigned long)st->st_blksize); 26 } 27 28 static void 29 show_stat(const char *file, struct stat *st) 30 { 31 char buf[100]; 32 33 printf(" File: ‘%s’\n", file); 34 printf(" Size: %lu\tBlocks: %lu\tIO Block: %lu\n", (unsigned long)st->st_size, 35 (unsigned long)st->st_blocks, (unsigned long)st->st_blksize); 36 printf("Device: %xh/%ud\tInode: %lu\tLinks %lu\n", major(st->st_dev), 37 minor(st->st_dev), (unsigned long)st->st_ino, (unsigned long)st->st_nlink); 38 printf("Access: %04o\tUid: %u\tGid: %u\n", st->st_mode & 0777, st->st_uid, st->st_gid); 39 strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", localtime(&st->st_atime)); 40 printf("Access: %s\n", buf); 41 strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", localtime(&st->st_mtime)); 42 printf("Modify: %s\n", buf); 43 strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", localtime(&st->st_ctime)); 44 printf("Change: %s\n", buf); 45 } 46 47 static void 48 usage(void) 49 { 50 eprintf("usage: %s [-L] [-t] [file...]\n", argv0); 51 } 52 53 int 54 main(int argc, char *argv[]) 55 { 56 struct stat st; 57 int i, ret = 0; 58 int (*fn)(const char *, struct stat *) = lstat; 59 char *fnname = "lstat"; 60 void (*showstat)(const char *, struct stat *) = show_stat; 61 62 ARGBEGIN { 63 case 'L': 64 fn = stat; 65 fnname = "stat"; 66 break; 67 case 't': 68 showstat = show_stat_terse; 69 break; 70 default: 71 usage(); 72 } ARGEND; 73 74 if (argc == 0) { 75 if (fstat(0, &st) < 0) 76 eprintf("stat <stdin>:"); 77 show_stat("<stdin>", &st); 78 } 79 80 for (i = 0; i < argc; i++) { 81 if (fn(argv[i], &st) == -1) { 82 weprintf("%s %s:", fnname, argv[i]); 83 ret = 1; 84 continue; 85 } 86 showstat(argv[i], &st); 87 } 88 89 return ret; 90 }