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:fLt", TOYFLAG_BIN))
11 usage: stat [-tfL] [-c FORMAT] FILE...
13 Display status of files or filesystems.
15 -c Output specified FORMAT string instead of default
16 -f display filesystem status instead of file status
18 -t terse (-c "%n %s %b %f %u %g %D %i %h %t %T %X %Y %Z %o")
19 (with -f = -c "%n %i %l %t %s %S %b %f %a %c %d")
21 The valid format escape sequences for files:
22 %a Access bits (octal) |%A Access bits (flags)|%b Size/512
23 %B Bytes per %b (512) |%d Device ID (dec) |%D Device ID (hex)
24 %f All mode bits (hex) |%F File type |%g Group ID
25 %G Group name |%h Hard links |%i Inode
26 %m Mount point |%n Filename |%N Long filename
27 %o I/O block size |%s Size (bytes) |%t Devtype major (hex)
28 %T Devtype minor (hex) |%u User ID |%U User name
29 %x Access time |%X Access unix time |%y File write time
30 %Y File write unix time|%z Dir change time |%Z Dir change unix time
32 The valid format escape sequences for filesystems:
33 %a Available blocks |%b Total blocks |%c Total inodes
34 %d Free inodes |%f Free blocks |%i File system ID
35 %l Max filename length |%n File name |%s Fragment size
36 %S Best transfer size |%t FS type (hex) |%T FS type (driver name)
53 // Force numeric output to long long instead of manually typecasting everything
54 // and safely parse length prefix
55 static void out(char c, long long val)
57 sprintf(toybuf, "%.*sll%c", TT.patlen, TT.pattern, c);
61 // Output string with parsed length prefix
62 static void strout(char *val)
64 sprintf(toybuf, "%.*ss", TT.patlen, TT.pattern);
68 static void date_stat_format(struct timespec *ts)
71 strftime(s, sizeof(toybuf)-128, "%Y-%m-%d %H:%M:%S",
72 localtime(&(ts->tv_sec)));
73 sprintf(s+strlen(s), ".%09ld", ts->tv_nsec);
77 static void print_stat(char type)
79 struct stat *stat = (struct stat *)&TT.stat;
81 if (type == 'a') out('o', stat->st_mode&~S_IFMT);
82 else if (type == 'A') {
85 mode_to_string(stat->st_mode, str);
87 } else if (type == 'b') out('u', stat->st_blocks);
88 else if (type == 'B') out('d', 512);
89 else if (type == 'd') out('d', stat->st_dev);
90 else if (type == 'D') out('x', stat->st_dev);
91 else if (type == 'f') out('x', stat->st_mode);
92 else if (type == 'F') {
93 char *t = "character device\0directory\0block device\0" \
94 "regular file\0symbolic link\0socket\0FIFO (named pipe)";
95 int i, filetype = stat->st_mode & S_IFMT;
97 for (i = 1; filetype != (i*8192) && i < 7; i++) t += strlen(t)+1;
98 if (!stat->st_size && filetype == S_IFREG) t = "regular empty file";
100 } else if (type == 'g') out('u', stat->st_gid);
101 else if (type == 'G') strout(getgroupname(stat->st_gid));
102 else if (type == 'h') out('u', stat->st_nlink);
103 else if (type == 'i') out('u', stat->st_ino);
104 else if (type == 'm') {
105 struct mtab_list *mt = xgetmountlist(0);
106 dev_t dev = stat->st_rdev ? stat->st_rdev : stat->st_dev;
108 // This mount point could exist multiple times, so show oldest.
109 for (dlist_terminate(mt); mt; mt = mt->next) if (mt->stat.st_dev == dev) {
113 llist_traverse(mt, free);
114 } else if (type == 'N') {
115 xprintf("`%s'", TT.file);
116 if (S_ISLNK(stat->st_mode))
117 if (readlink0(TT.file, toybuf, sizeof(toybuf)))
118 xprintf(" -> `%s'", toybuf);
119 } else if (type == 'o') out('u', stat->st_blksize);
120 else if (type == 's') out('u', stat->st_size);
121 else if (type == 't') out('x', dev_major(stat->st_rdev));
122 else if (type == 'T') out('x', dev_minor(stat->st_rdev));
123 else if (type == 'u') out('u', stat->st_uid);
124 else if (type == 'U') strout(getusername(stat->st_uid));
125 else if (type == 'x') date_stat_format(&stat->st_atim);
126 else if (type == 'X') out('u', stat->st_atime);
127 else if (type == 'y') date_stat_format(&stat->st_mtim);
128 else if (type == 'Y') out('u', stat->st_mtime);
129 else if (type == 'z') date_stat_format(&stat->st_ctim);
130 else if (type == 'Z') out('u', stat->st_ctime);
134 static void print_statfs(char type) {
135 struct statfs *statfs = (struct statfs *)&TT.stat;
137 if (type == 'a') out('u', statfs->f_bavail);
138 else if (type == 'b') out('u', statfs->f_blocks);
139 else if (type == 'c') out('u', statfs->f_files);
140 else if (type == 'd') out('u', statfs->f_ffree);
141 else if (type == 'f') out('u', statfs->f_bfree);
142 else if (type == 'l') out('d', statfs->f_namelen);
143 else if (type == 't') out('x', statfs->f_type);
144 else if (type == 'T') {
146 struct {unsigned num; char *name;} nn[] = {
147 {0xADFF, "affs"}, {0x5346544e, "ntfs"}, {0x1Cd1, "devpts"},
148 {0x137D, "ext"}, {0xEF51, "ext2"}, {0xEF53, "ext3"},
149 {0x1BADFACE, "bfs"}, {0x9123683E, "btrfs"}, {0x28cd3d45, "cramfs"},
150 {0x3153464a, "jfs"}, {0x7275, "romfs"}, {0x01021994, "tmpfs"},
151 {0x3434, "nilfs"}, {0x6969, "nfs"}, {0x9fa0, "proc"},
152 {0x534F434B, "sockfs"}, {0x62656572, "sysfs"}, {0x517B, "smb"},
153 {0x4d44, "msdos"}, {0x4006, "fat"}, {0x43415d53, "smackfs"},
154 {0x73717368, "squashfs"}
158 for (i=0; i<ARRAY_LEN(nn); i++)
159 if (nn[i].num == statfs->f_type) s = nn[i].name;
161 } else if (type == 'i') {
164 sprintf(buf, "%08x%08x", statfs->f_fsid.__val[0], statfs->f_fsid.__val[1]);
166 } else if (type == 's') out('d', statfs->f_frsize);
167 else if (type == 'S') out('d', statfs->f_bsize);
173 int flagf = toys.optflags & FLAG_f, i;
176 if (toys.optflags&FLAG_t) {
177 format = flagf ? "%n %i %l %t %s %S %b %f %a %c %d" :
178 "%n %s %b %f %u %g %D %i %h %t %T %X %Y %Z %o";
179 } else format = flagf
180 ? " File: \"%n\"\n ID: %i Namelen: %l Type: %t\n"
181 "Block Size: %s Fundamental block size: %S\n"
182 "Blocks: Total: %b\tFree: %f\tAvailable: %a\n"
183 "Inodes: Total: %c\tFree: %d"
184 : " File: %N\n Size: %s\t Blocks: %b\t IO Blocks: %B\t%F\n"
185 "Device: %Dh/%dd\t Inode: %i\t Links: %h\n"
186 "Access: (%a/%A)\tUid: (%5u/%8U)\tGid: (%5g/%8G)\n"
187 "Access: %x\nModify: %y\nChange: %z";
189 if (toys.optflags & FLAG_c) format = TT.fmt;
191 for (i = 0; toys.optargs[i]; i++) {
192 int L = toys.optflags & FLAG_L;
194 TT.file = toys.optargs[i];
195 if (flagf && !statfs(TT.file, (void *)&TT.stat));
196 else if (flagf || (L ? stat : lstat)(TT.file, (void *)&TT.stat)) {
197 perror_msg("'%s'", TT.file);
201 for (f = format; *f; f++) {
202 if (*f != '%') putchar(*f);
204 f = next_printf(f, &TT.pattern);
205 TT.patlen = f-TT.pattern;
206 if (TT.patlen>99) error_exit("bad %s", TT.pattern);
207 if (*f == 'n') strout(TT.file);
208 else if (flagf) print_statfs(*f);