1 /* stat.c : display file or file system status
2 * Copyright 2012 <warior.linux@gmail.com>
3 * Copyright 2013 <anand.sinha85@gmail.com>
5 USE_STAT(NEWTOY(stat, "<1c:tf", TOYFLAG_BIN))
11 usage: stat [-f] [-t] [-c FORMAT] FILE...
13 Display status of files or filesystems.
15 -f display filesystem status instead of file status
16 -c Output specified FORMAT string instead of default
17 -t Display info in terse form
19 The valid format escape sequences for files:
20 %a Access bits (octal) |%A Access bits (flags)|%b Blocks allocated
21 %B Bytes per block |%d Device ID (dec) |%D Device ID (hex)
22 %f All mode bits (hex) |%F File type |%g Group ID
23 %G Group name |%h Hard links |%i Inode
24 %n Filename |%N Long filename |%o I/O block size
25 %s Size (bytes) |%u User ID |%U User name
26 %x Access time |%X Access unix time |%y File write time
27 %Y File write unix time|%z Dir change time |%Z Dir change unix time
29 The valid format escape sequences for filesystems:
30 %a Available blocks |%b Total blocks |%c Total inodes
31 %d Free inodes |%f Free blocks |%i File system ID
32 %l Max filename length |%n File name |%s Fragment size
33 %S Best transfer size |%t Filesystem type |%T Filesystem type name
46 struct passwd *user_name;
47 struct group *group_name;
51 // Note: the atime, mtime, and ctime fields in struct stat are the start
52 // of embedded struct timespec, but posix won't let them use that
53 // struct definition for legacy/namespace reasons.
55 static void date_stat_format(struct timespec *ts)
57 strftime(toybuf, sizeof(toybuf), "%Y-%m-%d %H:%M:%S",
58 localtime(&(ts->tv_sec)));
59 xprintf("%s.%09ld", toybuf, ts->tv_nsec);
62 // Force numeric output to long long instead of manually typecasting everything
63 static void out(char c, long long val)
65 sprintf(toybuf, "%%ll%c", c);
69 static void print_stat(char type)
71 struct stat *stat = (struct stat *)&TT.stat;
73 if (type == 'a') out('o', stat->st_mode&~S_IFMT);
74 else if (type == 'A') {
77 mode_to_string(stat->st_mode, str);
79 } else if (type == 'b') out('u', stat->st_blocks);
80 else if (type == 'B') out('u', stat->st_blksize);
81 else if (type == 'd') out('d', stat->st_dev);
82 else if (type == 'D') out('x', stat->st_dev);
83 else if (type == 'f') out('x', stat->st_mode);
84 else if (type == 'F') {
85 char *t = "character device\0directory\0block device\0" \
86 "regular file\0symbolic link\0socket\0FIFO (named pipe)";
87 int i, filetype = stat->st_mode & S_IFMT;
89 for (i = 1; filetype != (i*8192) && i < 7; i++) t += strlen(t)+1;
90 if (!stat->st_size && filetype == S_IFREG) t = "regular empty file";
92 } else if (type == 'g') out('u', stat->st_gid);
93 else if (type == 'G') xprintf("%8s", TT.group_name->gr_name);
94 else if (type == 'h') out('u', stat->st_nlink);
95 else if (type == 'i') out('u', stat->st_ino);
96 else if (type == 'N') {
97 xprintf("`%s'", *toys.optargs);
98 if (S_ISLNK(stat->st_mode))
99 if (0<readlink(*toys.optargs, toybuf, sizeof(toybuf)))
100 xprintf(" -> `%s'", toybuf);
101 } else if (type == 'o') out('u', stat->st_blksize);
102 else if (type == 's') out('u', stat->st_size);
103 else if (type == 'u') out('u', stat->st_uid);
104 else if (type == 'U') xprintf("%8s", TT.user_name->pw_name);
105 else if (type == 'x') date_stat_format((void *)&stat->st_atime);
106 else if (type == 'X') out('u', stat->st_atime);
107 else if (type == 'y') date_stat_format((void *)&stat->st_mtime);
108 else if (type == 'Y') out('u', stat->st_mtime);
109 else if (type == 'z') date_stat_format((void *)&stat->st_ctime);
110 else if (type == 'Z') out('u', stat->st_ctime);
114 static void print_statfs(char type) {
115 struct statfs *statfs = (struct statfs *)&TT.stat;
117 if (type == 'a') out('u', statfs->f_bavail);
118 else if (type == 'b') out('u', statfs->f_blocks);
119 else if (type == 'c') out('u', statfs->f_files);
120 else if (type == 'd') out('u', statfs->f_ffree);
121 else if (type == 'f') out('u', statfs->f_bfree);
122 else if (type == 'l') out('d', statfs->f_namelen);
123 else if (type == 't') out('x', statfs->f_type);
124 else if (type == 'T') {
126 struct {unsigned num; char *name;} nn[] = {
127 {0xADFF, "affs"}, {0x5346544e, "ntfs"}, {0x1Cd1, "devpts"},
128 {0x137D, "ext"}, {0xEF51, "ext2"}, {0xEF53, "ext3"},
129 {0x1BADFACE, "bfs"}, {0x9123683E, "btrfs"}, {0x28cd3d45, "cramfs"},
130 {0x3153464a, "jfs"}, {0x7275, "romfs"}, {0x01021994, "tmpfs"},
131 {0x3434, "nilfs"}, {0x6969, "nfs"}, {0x9fa0, "proc"},
132 {0x534F434B, "sockfs"}, {0x62656572, "sysfs"}, {0x517B, "smb"},
133 {0x4d44, "msdos"}, {0x4006, "fat"}, {0x43415d53, "smackfs"},
134 {0x73717368, "squashfs"}
138 for (i=0; i<ARRAY_LEN(nn); i++)
139 if (nn[i].num == statfs->f_type) s = nn[i].name;
141 } else if (type == 'i')
142 xprintf("%08x%08x", statfs->f_fsid.__val[0], statfs->f_fsid.__val[1]);
143 else if (type == 's') out('d', statfs->f_frsize);
144 else if (type == 'S') out('d', statfs->f_bsize);
150 int flagf = toys.optflags & FLAG_f;
152 ? " File: \"%n\"\n ID: %i Namelen: %l Type: %t\n"
153 "Block Size: %s Fundamental block size: %S\n"
154 "Blocks: Total: %b\tFree: %f\tAvailable: %a\n"
155 "Inodes: Total: %c\tFree: %d"
156 : " File: %N\n Size: %s\t Blocks: %b\t IO Blocks: %B\t%F\n"
157 "Device: %Dh/%dd\t Inode: %i\t Links: %h\n"
158 "Access: (%a/%A)\tUid: (%u/%U)\tGid: (%g/%G)\n"
159 "Access: %x\nModify: %y\nChange: %z";
160 char *terse_format = "%n %s %b %f %u %g %D %i %h %t %T %X %Y %Z %o";
162 if (toys.optflags & FLAG_c) format = TT.fmt;
163 if (toys.optflags & FLAG_t) format = terse_format;
165 for (; *toys.optargs; toys.optargs++) {
168 if (flagf && !statfs(*toys.optargs, (void *)&TT.stat));
169 else if (!flagf && !lstat(*toys.optargs, (void *)&TT.stat)) {
170 struct stat *stat = (struct stat*)&TT.stat;
172 // check user and group name
173 TT.user_name = getpwuid(stat->st_uid);
174 TT.group_name = getgrgid(stat->st_gid);
176 perror_msg("'%s'", *toys.optargs);
180 for (f = format; *f; f++) {
181 if (*f != '%') putchar(*f);
183 if (*++f == 'n') xprintf("%s", *toys.optargs);
184 else if (flagf) print_statfs(*f);