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/* stat.c : display file or file system status
* Copyright 2012 <warior.linux@gmail.com>
* Copyright 2013 <anand.sinha85@gmail.com>
USE_STAT(NEWTOY(stat, "<1c:(format)fLt", TOYFLAG_BIN))
config STAT
bool stat
default y
help
usage: stat [-tfL] [-c FORMAT] FILE...
Display status of files or filesystems.
-c Output specified FORMAT string instead of default
-f Display filesystem status instead of file status
-L Follow symlinks
-t terse (-c "%n %s %b %f %u %g %D %i %h %t %T %X %Y %Z %o")
(with -f = -c "%n %i %l %t %s %S %b %f %a %c %d")
The valid format escape sequences for files:
%a Access bits (octal) |%A Access bits (flags)|%b Size/512
%B Bytes per %b (512) |%C Security context |%d Device ID (dec)
%D Device ID (hex) |%f All mode bits (hex)|%F File type
%g Group ID |%G Group name |%h Hard links
%i Inode |%m Mount point |%n Filename
%N Long filename |%o I/O block size |%s Size (bytes)
%t Devtype major (hex) |%T Devtype minor (hex)|%u User ID
%U User name |%x Access time |%X Access unix time
%y Modification time |%Y Mod unix time |%z Creation time
%Z Creation unix time
The valid format escape sequences for filesystems:
%a Available blocks |%b Total blocks |%c Total inodes
%d Free inodes |%f Free blocks |%i File system ID
%l Max filename length |%n File name |%s Fragment size
%S Best transfer size |%t FS type (hex) |%T FS type (driver name)
*/
#define FOR_stat
#include "toys.h"
GLOBALS(
char *c;
union {
struct stat st;
struct statfs sf;
} stat;
char *file, *pattern;
int patlen;
)
// Force numeric output to long long instead of manually typecasting everything
// and safely parse length prefix
static void out(char c, long long val)
{
sprintf(toybuf, "%.*sll%c", TT.patlen, TT.pattern, c);
printf(toybuf, val);
}
// Output string with parsed length prefix
static void strout(char *val)
{
sprintf(toybuf, "%.*ss", TT.patlen, TT.pattern);
printf(toybuf, val);
}
static void date_stat_format(struct timespec *ts)
{
strout(format_iso_time(toybuf+128, sizeof(toybuf)-128, ts));
}
static void print_stat(char type)
{
struct stat *stat = (struct stat *)&TT.stat;
if (type == 'a') out('o', stat->st_mode&~S_IFMT);
else if (type == 'A') {
char str[11];
mode_to_string(stat->st_mode, str);
strout(str);
} else if (type == 'b') out('u', stat->st_blocks);
else if (type == 'B') out('d', 512);
else if (type == 'C') {
char *context = NULL;
strout(lsm_get_context(TT.file, &context) != -1 ? context : "?");
free(context);
} else if (type == 'd') out('d', stat->st_dev);
else if (type == 'D') out('x', stat->st_dev);
else if (type == 'f') out('x', stat->st_mode);
else if (type == 'F') {
char *t = "character device\0directory\0block device\0" \
"regular file\0symbolic link\0socket\0FIFO (named pipe)";
int i, filetype = stat->st_mode & S_IFMT;
for (i = 1; filetype != (i*8192) && i < 7; i++) t += strlen(t)+1;
if (!stat->st_size && filetype == S_IFREG) t = "regular empty file";
strout(t);
} else if (type == 'g') out('u', stat->st_gid);
else if (type == 'G') strout(getgroupname(stat->st_gid));
else if (type == 'h') out('u', stat->st_nlink);
else if (type == 'i') out('u', stat->st_ino);
else if (type == 'm') {
struct mtab_list *mt = xgetmountlist(0);
dev_t dev = stat->st_rdev ? stat->st_rdev : stat->st_dev;
// This mount point could exist multiple times, so show oldest.
for (dlist_terminate(mt); mt; mt = mt->next) if (mt->stat.st_dev == dev) {
strout(mt->dir);
break;
}
llist_traverse(mt, free);
} else if (type == 'N') {
printf("%s", TT.file);
if (S_ISLNK(stat->st_mode))
if (readlink0(TT.file, toybuf, sizeof(toybuf)))
printf(" -> `%s'", toybuf);
} else if (type == 'o') out('u', stat->st_blksize);
else if (type == 's') out('u', stat->st_size);
else if (type == 't') out('x', dev_major(stat->st_rdev));
else if (type == 'T') out('x', dev_minor(stat->st_rdev));
else if (type == 'u') out('u', stat->st_uid);
else if (type == 'U') strout(getusername(stat->st_uid));
else if (type == 'x') date_stat_format(&stat->st_atim);
else if (type == 'X') out('u', stat->st_atime);
else if (type == 'y') date_stat_format(&stat->st_mtim);
else if (type == 'Y') out('u', stat->st_mtime);
else if (type == 'z') date_stat_format(&stat->st_ctim);
else if (type == 'Z') out('u', stat->st_ctime);
else putchar('?');
}
static void print_statfs(char type) {
struct statfs *statfs = (struct statfs *)&TT.stat;
if (type == 'a') out('u', statfs->f_bavail);
else if (type == 'b') out('u', statfs->f_blocks);
else if (type == 'c') out('u', statfs->f_files);
else if (type == 'd') out('u', statfs->f_ffree);
else if (type == 'f') out('u', statfs->f_bfree);
else if (type == 'l') {
#ifdef __APPLE__
// TODO: move this into portability.c somehow, or just use this everywhere?
// (glibc and bionic will just re-do the statfs and return f_namelen.)
out('d', pathconf(TT.file, _PC_NAME_MAX));
#else
out('d', statfs->f_namelen);
#endif
} else if (type == 't') out('x', statfs->f_type);
else if (type == 'T') {
char *s = "unknown";
struct {unsigned num; char *name;} nn[] = {
{0xADFF, "affs"}, {0x5346544e, "ntfs"}, {0x1Cd1, "devpts"},
{0x137D, "ext"}, {0xEF51, "ext2"}, {0xEF53, "ext3"},
{0x1BADFACE, "bfs"}, {0x9123683E, "btrfs"}, {0x28cd3d45, "cramfs"},
{0x3153464a, "jfs"}, {0x7275, "romfs"}, {0x01021994, "tmpfs"},
{0x3434, "nilfs"}, {0x6969, "nfs"}, {0x9fa0, "proc"},
{0x534F434B, "sockfs"}, {0x62656572, "sysfs"}, {0x517B, "smb"},
{0x4d44, "msdos"}, {0x4006, "fat"}, {0x43415d53, "smackfs"},
{0x73717368, "squashfs"}
};
int i;
for (i=0; i<ARRAY_LEN(nn); i++)
if (nn[i].num == statfs->f_type) s = nn[i].name;
strout(s);
} else if (type == 'i') {
int *val = (int *) &statfs->f_fsid;
char buf[32];
sprintf(buf, "%08x%08x", val[0], val[1]);
strout(buf);
} else if (type == 's') out('d', statfs->f_frsize);
else if (type == 'S') out('d', statfs->f_bsize);
else strout("?");
}
void stat_main(void)
{
int flagf = FLAG(f), i;
char *format, *f;
if (FLAG(t)) format = flagf
? "%n %i %l %t %s %S %b %f %a %c %d"
: "%n %s %b %f %u %g %D %i %h %t %T %X %Y %Z %o";
else format = flagf
? " File: \"%n\"\n ID: %i Namelen: %l Type: %T\n"
"Block Size: %s Fundamental block size: %S\n"
"Blocks: Total: %b\tFree: %f\tAvailable: %a\n"
"Inodes: Total: %c\tFree: %d"
: " File: %N\n Size: %s\t Blocks: %b\t IO Blocks: %B\t %F\n"
"Device: %Dh/%dd\t Inode: %i\t Links: %h\t Device type: %t,%T\n"
"Access: (0%a/%A)\tUid: (%5u/%8U)\tGid: (%5g/%8G)\n"
"Access: %x\nModify: %y\nChange: %z";
if (FLAG(c)) format = TT.c;
// loop through files listed on command line
for (i = 0; toys.optargs[i]; i++) {
// stat the file or filesystem
TT.file = toys.optargs[i];
if (flagf && !statfs(TT.file, (void *)&TT.stat));
else if (flagf || (FLAG(L) ? stat : lstat)(TT.file, (void *)&TT.stat)) {
perror_msg("'%s'", TT.file);
continue;
}
// parse format and print what it says
for (f = format; *f; f++) {
if (*f != '%' || !f[1]) putchar(*f);
else if (f[1]=='%') putchar(*f++);
else {
f = next_printf(f, &TT.pattern);
TT.patlen = f-TT.pattern;
if (!*f || TT.patlen>99) error_exit("bad %s", TT.pattern);
if (*f == 'n') strout(TT.file);
else if (flagf) print_statfs(*f);
else print_stat(*f);
}
}
xputc('\n');
}
}
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