stat.c (2435B)
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 show_stat(const char *file, struct stat *st); 14 static void show_stat_terse(const char *file, struct stat *st); 15 16 static void 17 usage(void) 18 { 19 eprintf("usage: %s [-L] [-t] [file...]\n", argv0); 20 } 21 22 int 23 main(int argc, char *argv[]) 24 { 25 struct stat st; 26 int i, ret = 0; 27 int (*fn)(const char *, struct stat *) = lstat; 28 char *fnname = "lstat"; 29 void (*showstat)(const char *, struct stat *) = show_stat; 30 31 ARGBEGIN { 32 case 'L': 33 fn = stat; 34 fnname = "stat"; 35 break; 36 case 't': 37 showstat = show_stat_terse; 38 break; 39 default: 40 usage(); 41 } ARGEND; 42 43 if (argc == 0) { 44 if (fstat(0, &st) < 0) 45 eprintf("stat <stdin>:"); 46 show_stat("<stdin>", &st); 47 } 48 49 for (i = 0; i < argc; i++) { 50 if (fn(argv[i], &st) == -1) { 51 weprintf("%s %s:", fnname, argv[i]); 52 ret = 1; 53 continue; 54 } 55 showstat(argv[i], &st); 56 } 57 58 return ret; 59 } 60 61 static void 62 show_stat_terse(const char *file, struct stat *st) 63 { 64 printf("%s ", file); 65 printf("%lu %lu ", (unsigned long)st->st_size, 66 (unsigned long)st->st_blocks); 67 printf("%04o %u %u ", st->st_mode & 0777, st->st_uid, st->st_gid); 68 printf("%llx ", (unsigned long long)st->st_dev); 69 printf("%lu %lu ", (unsigned long)st->st_ino, (unsigned long)st->st_nlink); 70 printf("%d %d ", major(st->st_rdev), minor(st->st_rdev)); 71 printf("%ld %ld %ld ", st->st_atime, st->st_mtime, st->st_ctime); 72 printf("%lu\n", (unsigned long)st->st_blksize); 73 } 74 75 static void 76 show_stat(const char *file, struct stat *st) 77 { 78 char buf[100]; 79 80 printf(" File: ‘%s’\n", file); 81 printf(" Size: %lu\tBlocks: %lu\tIO Block: %lu\n", (unsigned long)st->st_size, 82 (unsigned long)st->st_blocks, (unsigned long)st->st_blksize); 83 printf("Device: %xh/%ud\tInode: %lu\tLinks %lu\n", major(st->st_dev), 84 minor(st->st_dev), (unsigned long)st->st_ino, (unsigned long)st->st_nlink); 85 printf("Access: %04o\tUid: %u\tGid: %u\n", st->st_mode & 0777, st->st_uid, st->st_gid); 86 strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", localtime(&st->st_atime)); 87 printf("Access: %s\n", buf); 88 strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", localtime(&st->st_mtime)); 89 printf("Modify: %s\n", buf); 90 strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", localtime(&st->st_ctime)); 91 printf("Change: %s\n", buf); 92 }