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, "<1c: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 Filesystem type |%T Filesystem type name 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.%09ld", toybuf, ts->tv_nsec); 59 } 60 61 // Force numeric output to long long instead of manually typecasting everything 62 static void out(char c, long long val) 63 { 64 sprintf(toybuf, "%%ll%c", c); 65 printf(toybuf, val); 66 } 67 68 static void print_stat(char type) 69 { 70 struct stat *stat = (struct stat *)&TT.stat; 71 72 if (type == 'a') out('o', stat->st_mode&~S_IFMT); 73 else if (type == 'A') { 74 char str[11]; 75 76 mode_to_string(stat->st_mode, str); 77 xprintf("%s", str); 78 } else if (type == 'b') out('u', stat->st_blocks); 79 else if (type == 'B') out('u', stat->st_blksize); 80 else if (type == 'd') out('d', stat->st_dev); 81 else if (type == 'D') out('x', stat->st_dev); 82 else if (type == 'f') out('x', stat->st_mode); 83 else if (type == 'F') { 84 char *t = "character device\0directory\0block device\0" \ 85 "regular file\0symbolic link\0socket\0FIFO (named pipe)"; 86 int i, filetype = stat->st_mode & S_IFMT; 87 88 for (i = 1; filetype != (i*8192) && i < 7; i++) t += strlen(t)+1; 89 if (!stat->st_size && filetype == S_IFREG) t = "regular empty file"; 90 xprintf("%s", t); 91 } else if (type == 'g') out('u', stat->st_gid); 92 else if (type == 'G') xprintf("%8s", TT.group_name->gr_name); 93 else if (type == 'h') out('u', stat->st_nlink); 94 else if (type == 'i') out('u', stat->st_ino); 95 else if (type == 'N') { 96 xprintf("`%s'", *toys.optargs); 97 if (S_ISLNK(stat->st_mode)) 98 if (0<readlink(*toys.optargs, toybuf, sizeof(toybuf))) 99 xprintf(" -> `%s'", toybuf); 100 } else if (type == 'o') out('u', stat->st_blksize); 101 else if (type == 's') out('u', stat->st_size); 102 else if (type == 'u') out('u', stat->st_uid); 103 else if (type == 'U') xprintf("%8s", TT.user_name->pw_name); 104 else if (type == 'x') date_stat_format((void *)&stat->st_atime); 105 else if (type == 'X') out('u', stat->st_atime); 106 else if (type == 'y') date_stat_format((void *)&stat->st_mtime); 107 else if (type == 'Y') out('u', stat->st_mtime); 108 else if (type == 'z') date_stat_format((void *)&stat->st_ctime); 109 else if (type == 'Z') out('u', stat->st_ctime); 110 else xprintf("?"); 111 } 112 113 static void print_statfs(char type) { 114 struct statfs *statfs = (struct statfs *)&TT.stat; 115 116 if (type == 'a') out('u', statfs->f_bavail); 117 else if (type == 'b') out('u', statfs->f_blocks); 118 else if (type == 'c') out('u', statfs->f_files); 119 else if (type == 'd') out('u', statfs->f_ffree); 120 else if (type == 'f') out('u', statfs->f_bfree); 121 else if (type == 'l') out('d', statfs->f_namelen); 122 else if (type == 't') out('x', statfs->f_type); 123 else if (type == 'T') { 124 char *s = "unknown"; 125 struct {unsigned num; char *name;} nn[] = { 126 {0xADFF, "affs"}, {0x5346544e, "ntfs"}, {0x1Cd1, "devpts"}, 127 {0x137D, "ext"}, {0xEF51, "ext2"}, {0xEF53, "ext3"}, 128 {0x1BADFACE, "bfs"}, {0x9123683E, "btrfs"}, {0x28cd3d45, "cramfs"}, 129 {0x3153464a, "jfs"}, {0x7275, "romfs"}, {0x01021994, "tmpfs"}, 130 {0x3434, "nilfs"}, {0x6969, "nfs"}, {0x9fa0, "proc"}, 131 {0x534F434B, "sockfs"}, {0x62656572, "sysfs"}, {0x517B, "smb"}, 132 {0x4d44, "msdos"}, {0x4006, "fat"}, {0x43415d53, "smackfs"}, 133 {0x73717368, "squashfs"} 134 }; 135 int i; 136 137 for (i=0; i<ARRAY_LEN(nn); i++) 138 if (nn[i].num == statfs->f_type) s = nn[i].name; 139 fputs(s, stdout); 140 } else if (type == 'i') 141 xprintf("%08x%08x", statfs->f_fsid.__val[0], statfs->f_fsid.__val[1]); 142 else if (type == 's') out('d', statfs->f_frsize); 143 else if (type == 'S') out('d', statfs->f_bsize); 144 else xprintf("?"); 145 } 146 147 void stat_main(void) 148 { 149 int flagf = toys.optflags & FLAG_f; 150 char *format = flagf 151 ? " File: \"%n\"\n ID: %i Namelen: %l Type: %t\n" 152 "Block Size: %s Fundamental block size: %S\n" 153 "Blocks: Total: %b\tFree: %f\tAvailable: %a\n" 154 "Inodes: Total: %c\tFree: %d" 155 : " File: %N\n Size: %s\t Blocks: %b\t IO Blocks: %B\t%F\n" 156 "Device: %Dh/%dd\t Inode: %i\t Links: %h\n" 157 "Access: (%a/%A)\tUid: (%u/%U)\tGid: (%g/%G)\n" 158 "Access: %x\nModify: %y\nChange: %z"; 159 160 if (toys.optflags & FLAG_c) format = TT.fmt; 161 162 for (; *toys.optargs; toys.optargs++) { 163 char *f; 164 165 if (flagf && !statfs(*toys.optargs, (void *)&TT.stat)); 166 else if (!flagf && !lstat(*toys.optargs, (void *)&TT.stat)) { 167 struct stat *stat = (struct stat*)&TT.stat; 168 169 // check user and group name 170 TT.user_name = getpwuid(stat->st_uid); 171 TT.group_name = getgrgid(stat->st_gid); 172 } else { 173 perror_msg("'%s'", *toys.optargs); 174 continue; 175 } 176 177 for (f = format; *f; f++) { 178 if (*f != '%') putchar(*f); 179 else { 180 if (*++f == 'n') xprintf("%s", *toys.optargs); 181 else if (flagf) print_statfs(*f); 182 else print_stat(*f); 183 } 184 } 185 xputc('\n'); 186 } 187 } 188
