1 /* stat.c : display file or file system status 2 * Copyright 2012 <warior.linux (at) gmail.com> 3 * Copyright 2013 <anand.sinha85 (at) gmail.com> 4 5 USE_STAT(NEWTOY(stat, "c:f", TOYFLAG_BIN)) 6 7 config STAT 8 bool stat 9 default y 10 help 11 usage: stat [-f] [-c FORMAT] FILE... 12 13 Display status of files or filesystems. 14 15 -f display filesystem status instead of file status 16 -c Output specified FORMAT string instead of default 17 18 The valid format escape sequences for files: 19 %a Access bits (octal) |%A Access bits (flags)|%b Blocks allocated 20 %B Bytes per block |%d Device ID (dec) |%D Device ID (hex) 21 %f All mode bits (hex) |%F File type |%g Group ID 22 %G Group name |%h Hard links |%i Inode 23 %n Filename |%N Long filename |%o I/O block size 24 %s Size (bytes) |%u User ID |%U User name 25 %x Access time |%X Access unix time |%y File write time 26 %Y File write unix time|%z Dir change time |%Z Dir change unix time 27 28 The valid format escape sequences for filesystems: 29 %a Available blocks |%b Total blocks |%c Total inodes 30 %d Free inodes |%f Free blocks |%i File system ID 31 %l Max filename length |%n File name |%s Fragment size 32 %S Best transfer size |%t File system type 33 */ 34 35 #define FOR_stat 36 #include "toys.h" 37 38 GLOBALS( 39 char *fmt; 40 41 union { 42 struct stat st; 43 struct statfs sf; 44 } stat; 45 struct passwd *user_name; 46 struct group *group_name; 47 ) 48 49 50 // Note: the atime, mtime, and ctime fields in struct stat are the start 51 // of embedded struct timespec, but posix won't let them use that 52 // struct definition for legacy/namespace reasons. 53 54 static void date_stat_format(struct timespec *ts) 55 { 56 strftime(toybuf, sizeof(toybuf), "%Y-%m-%d %H:%M:%S", 57 localtime(&(ts->tv_sec))); 58 xprintf("%s.%09d", toybuf, ts->tv_nsec); 59 } 60 61 static void print_stat(char type) 62 { 63 struct stat *stat = (struct stat *)&TT.stat; 64 65 if (type == 'a') xprintf("%lo", stat->st_mode & ~S_IFMT); 66 else if (type == 'A') { 67 char str[11]; 68 69 mode_to_string(stat->st_mode, str); 70 xprintf("%s", str); 71 } else if (type == 'b') xprintf("%llu", stat->st_blocks); 72 else if (type == 'B') xprintf("%lu", stat->st_blksize); 73 else if (type == 'd') xprintf("%ldd", stat->st_dev); 74 else if (type == 'D') xprintf("%llxh", stat->st_dev); 75 else if (type == 'f') xprintf("%lx", stat->st_mode); 76 else if (type == 'F') { 77 char *t = "character device\0directory\0block device\0" \ 78 "regular file\0symbolic link\0socket\0FIFO (named pipe)"; 79 int i, filetype = stat->st_mode & S_IFMT; 80 81 for (i = 1; filetype != (i*8192) && i < 7; i++) t += strlen(t)+1; 82 if (!stat->st_size && filetype == S_IFREG) t = "regular empty file"; 83 xprintf("%s", t); 84 } else if (type == 'g') xprintf("%lu", stat->st_gid); 85 else if (type == 'G') xprintf("%8s", TT.user_name->pw_name); 86 else if (type == 'h') xprintf("%lu", stat->st_nlink); 87 else if (type == 'i') xprintf("%llu", stat->st_ino); 88 else if (type == 'N') { 89 xprintf("`%s'", *toys.optargs); 90 if (S_ISLNK(stat->st_mode)) 91 if (0<readlink(*toys.optargs, toybuf, sizeof(toybuf))) 92 xprintf(" -> `%s'", toybuf); 93 } else if (type == 'o') xprintf("%lu", stat->st_blksize); 94 else if (type == 's') xprintf("%llu", stat->st_size); 95 else if (type == 'u') xprintf("%lu", stat->st_uid); 96 else if (type == 'U') xprintf("%8s", TT.user_name->pw_name); 97 else if (type == 'x') date_stat_format((void *)&stat->st_atime); 98 else if (type == 'X') xprintf("%llu", (long long)stat->st_atime); 99 else if (type == 'y') date_stat_format((void *)&stat->st_mtime); 100 else if (type == 'Y') xprintf("%llu", (long long)stat->st_mtime); 101 else if (type == 'z') date_stat_format((void *)&stat->st_ctime); 102 else if (type == 'Z') xprintf("%llu", (long long)stat->st_ctime); 103 else xprintf("?"); 104 } 105 106 static void print_statfs(char type) { 107 struct statfs *statfs = (struct statfs *)&TT.stat; 108 109 if (type == 'a') xprintf("%llu", statfs->f_bavail); 110 else if (type == 'b') xprintf("%llu", statfs->f_blocks); 111 else if (type == 'c') xprintf("%llu", statfs->f_files); 112 else if (type == 'd') xprintf("%llu", statfs->f_ffree); 113 else if (type == 'f') xprintf("%llu", statfs->f_bfree); 114 else if (type == 'l') xprintf("%ld", statfs->f_namelen); 115 else if (type == 't') xprintf("%lx", statfs->f_type); 116 else if (type == 'i') 117 xprintf("%08x%08x", statfs->f_fsid.__val[0], statfs->f_fsid.__val[1]); 118 else if (type == 's') xprintf("%d", statfs->f_frsize); 119 else if (type == 'S') xprintf("%d", statfs->f_bsize); 120 else xprintf("?"); 121 } 122 123 void stat_main(void) 124 { 125 int flagf = toys.optflags & FLAG_f; 126 char *format = flagf 127 ? " File: \"%n\"\n ID: %i Namelen: %l Type: %t\n" 128 "Block Size: %s Fundamental block size: %S\n" 129 "Blocks: Total: %b\tFree: %f\tAvailable: %a\n" 130 "Inodes: Total: %c\tFree: %d" 131 : " File: %N\n Size: %s\t Blocks: %b\t IO Blocks: %B\t%F\n" 132 "Device: %D\t Inode: %i\t Links: %h\n" 133 "Access: (%a/%A)\tUid: (%u/%U)\tGid: (%g/%G)\n" 134 "Access: %x\nModify: %y\nChange: %z"; 135 136 if (toys.optflags & FLAG_c) format = TT.fmt; 137 138 for (; *toys.optargs; toys.optargs++) { 139 char *f; 140 141 if (flagf && !statfs(*toys.optargs, (void *)&TT.stat)); 142 else if (!flagf && !lstat(*toys.optargs, (void *)&TT.stat)) { 143 struct stat *stat = (struct stat*)&TT.stat; 144 145 // check user and group name 146 TT.user_name = getpwuid(stat->st_uid); 147 TT.group_name = getgrgid(stat->st_gid); 148 } else { 149 perror_msg("'%s'", *toys.optargs); 150 continue; 151 } 152 153 for (f = format; *f; f++) { 154 if (*f != '%') putchar(*f); 155 else { 156 if (*++f == 'n') xprintf("%s", *toys.optargs); 157 else if (flagf) print_statfs(*f); 158 else print_stat(*f); 159 } 160 } 161 xputc('\n'); 162 } 163 } 164
