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)
49 struct passwd *user_name;
50 struct group *group_name;
55 // Note: the atime, mtime, and ctime fields in struct stat are the start
56 // of embedded struct timespec, but posix won't let them use that
57 // struct definition for legacy/namespace reasons.
59 static void date_stat_format(struct timespec *ts)
61 strftime(toybuf, sizeof(toybuf), "%Y-%m-%d %H:%M:%S",
62 localtime(&(ts->tv_sec)));
63 xprintf("%s.%09ld", toybuf, ts->tv_nsec);
66 // Force numeric output to long long instead of manually typecasting everything
67 static void out(char c, long long val)
69 sprintf(toybuf, "%%ll%c", c);
73 static void print_stat(char type)
75 struct stat *stat = (struct stat *)&TT.stat;
77 if (type == 'a') out('o', stat->st_mode&~S_IFMT);
78 else if (type == 'A') {
81 mode_to_string(stat->st_mode, str);
83 } else if (type == 'b') out('u', stat->st_blocks);
84 else if (type == 'B') printf("512");
85 else if (type == 'd') out('d', stat->st_dev);
86 else if (type == 'D') out('x', stat->st_dev);
87 else if (type == 'f') out('x', stat->st_mode);
88 else if (type == 'F') {
89 char *t = "character device\0directory\0block device\0" \
90 "regular file\0symbolic link\0socket\0FIFO (named pipe)";
91 int i, filetype = stat->st_mode & S_IFMT;
93 for (i = 1; filetype != (i*8192) && i < 7; i++) t += strlen(t)+1;
94 if (!stat->st_size && filetype == S_IFREG) t = "regular empty file";
96 } else if (type == 'g') out('u', stat->st_gid);
97 else if (type == 'G') xprintf("%8s", TT.group_name->gr_name);
98 else if (type == 'h') out('u', stat->st_nlink);
99 else if (type == 'i') out('u', stat->st_ino);
100 else if (type == 'm') {
101 struct mtab_list *mt = xgetmountlist(0);
102 dev_t dev = stat->st_rdev ? stat->st_rdev : stat->st_dev;
104 // This mount point could exist multiple times, so show oldest.
105 for (dlist_terminate(mt); mt; mt = mt->next) if (mt->stat.st_dev == dev) {
106 printf("%s", mt->dir);
109 llist_traverse(mt, free);
110 } else if (type == 'N') {
111 xprintf("`%s'", TT.file);
112 if (S_ISLNK(stat->st_mode))
113 if (readlink0(TT.file, toybuf, sizeof(toybuf)))
114 xprintf(" -> `%s'", toybuf);
115 } else if (type == 'o') out('u', stat->st_blksize);
116 else if (type == 's') out('u', stat->st_size);
117 else if (type == 't') out('x', dev_major(stat->st_rdev));
118 else if (type == 'T') out('x', dev_minor(stat->st_rdev));
119 else if (type == 'u') out('u', stat->st_uid);
120 else if (type == 'U') xprintf("%8s", TT.user_name->pw_name);
121 else if (type == 'x') date_stat_format((void *)&stat->st_atime);
122 else if (type == 'X') out('u', stat->st_atime);
123 else if (type == 'y') date_stat_format((void *)&stat->st_mtime);
124 else if (type == 'Y') out('u', stat->st_mtime);
125 else if (type == 'z') date_stat_format((void *)&stat->st_ctime);
126 else if (type == 'Z') out('u', stat->st_ctime);
130 static void print_statfs(char type) {
131 struct statfs *statfs = (struct statfs *)&TT.stat;
133 if (type == 'a') out('u', statfs->f_bavail);
134 else if (type == 'b') out('u', statfs->f_blocks);
135 else if (type == 'c') out('u', statfs->f_files);
136 else if (type == 'd') out('u', statfs->f_ffree);
137 else if (type == 'f') out('u', statfs->f_bfree);
138 else if (type == 'l') out('d', statfs->f_namelen);
139 else if (type == 't') out('x', statfs->f_type);
140 else if (type == 'T') {
142 struct {unsigned num; char *name;} nn[] = {
143 {0xADFF, "affs"}, {0x5346544e, "ntfs"}, {0x1Cd1, "devpts"},
144 {0x137D, "ext"}, {0xEF51, "ext2"}, {0xEF53, "ext3"},
145 {0x1BADFACE, "bfs"}, {0x9123683E, "btrfs"}, {0x28cd3d45, "cramfs"},
146 {0x3153464a, "jfs"}, {0x7275, "romfs"}, {0x01021994, "tmpfs"},
147 {0x3434, "nilfs"}, {0x6969, "nfs"}, {0x9fa0, "proc"},
148 {0x534F434B, "sockfs"}, {0x62656572, "sysfs"}, {0x517B, "smb"},
149 {0x4d44, "msdos"}, {0x4006, "fat"}, {0x43415d53, "smackfs"},
150 {0x73717368, "squashfs"}
154 for (i=0; i<ARRAY_LEN(nn); i++)
155 if (nn[i].num == statfs->f_type) s = nn[i].name;
157 } else if (type == 'i')
158 xprintf("%08x%08x", statfs->f_fsid.__val[0], statfs->f_fsid.__val[1]);
159 else if (type == 's') out('d', statfs->f_frsize);
160 else if (type == 'S') out('d', statfs->f_bsize);
166 int flagf = toys.optflags & FLAG_f, i;
169 if (toys.optflags&FLAG_t) {
170 format = flagf ? "%n %i %l %t %s %S %b %f %a %c %d" :
171 "%n %s %b %f %u %g %D %i %h %t %T %X %Y %Z %o";
172 } else format = flagf
173 ? " File: \"%n\"\n ID: %i Namelen: %l Type: %t\n"
174 "Block Size: %s Fundamental block size: %S\n"
175 "Blocks: Total: %b\tFree: %f\tAvailable: %a\n"
176 "Inodes: Total: %c\tFree: %d"
177 : " File: %N\n Size: %s\t Blocks: %b\t IO Blocks: %B\t%F\n"
178 "Device: %Dh/%dd\t Inode: %i\t Links: %h\n"
179 "Access: (%a/%A)\tUid: (%u/%U)\tGid: (%g/%G)\n"
180 "Access: %x\nModify: %y\nChange: %z";
182 if (toys.optflags & FLAG_c) format = TT.fmt;
184 for (i = 0; toys.optargs[i]; i++) {
185 int L = toys.optflags & FLAG_L;
187 TT.file = toys.optargs[i];
188 if (flagf && !statfs(TT.file, (void *)&TT.stat));
189 else if (!flagf && !(L ? stat : lstat)(TT.file, (void *)&TT.stat)) {
190 struct stat *stat = (struct stat*)&TT.stat;
192 // check user and group name
193 TT.user_name = getpwuid(stat->st_uid);
194 TT.group_name = getgrgid(stat->st_gid);
196 perror_msg("'%s'", TT.file);
200 for (f = format; *f; f++) {
201 if (*f != '%') putchar(*f);
203 if (*++f == 'n') xprintf("%s", TT.file);
204 else if (flagf) print_statfs(*f);