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/* stat.c : display file or file system status
* anand.sinha85@gmail.com
* Copyright 2012 <warior.linux@gmail.com>
USE_STAT(NEWTOY(stat, "c:f", TOYFLAG_BIN))
config STAT
bool stat
default n
help
usage: stat [-f] [-c FORMAT] FILE...
display file or file system status
-f display file system status instead of file status
-c use the specified FORMAT instead of the default;
output a newline after each use of FORMAT
The valid format sequences for files:
%a Access rights in octal
%A Access rights in human readable form
%b Number of blocks allocated
%B The size in bytes of each block
%d Device number in decimal
%D Device number in hex
%f Raw mode in hex
%F File type
%g Group ID of owner
%G Group name of owner
%h Number of hard links
%i Inode number
%n File name
%N Quoted file name with dereference if symbolic link
%o I/O block size
%s Total size, in bytes
%u User ID of owner
%U User name of owner
%x Time of last access
%X Time of last access as seconds since Epoch
%y Time of last modification
%Y Time of last modification as seconds since Epoch
%z Time of last change
%Z Time of last change as seconds since Epoch
The valid format sequences for file systems:
%a Available blocks for unpriviledges user
%b Total number of blocks
%c Total number of inodes
%d Number of free inodes
%f Number of free blocks
%i File system ID
%l Maximum length of file names
%s Fragment size
%S Optimal transfer block size
%t File system type
*/
#define FOR_stat
#include "toys.h"
GLOBALS(
char *fmt;
char access_str[11];
char *file_type;
struct passwd *user_name;
struct group *group_name;
struct stat *stat;
struct statfs *statfs;
)
static char * check_type_file(mode_t mode, size_t size)
{
if (S_ISREG(mode)) {
if (size) return "regular file";
return "regular empty file";
}
if (S_ISDIR(mode)) return "directory";
if (S_ISCHR(mode)) return "character device";
if (S_ISBLK(mode)) return "block device";
if (S_ISFIFO(mode)) return "FIFO (named pipe)";
if (S_ISLNK(mode)) return "symbolic link";
if (S_ISSOCK(mode)) return "socket";
}
static char * date_stat_format(time_t time)
{
static char buf[36];
strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S.000000000", localtime(&time));
return buf;
}
static void print_stat_format(char *format, int flag)
{
for (; *format; format++) {
if (*format != '%') {
xprintf("%c", *format);
continue;
}
format++;
switch (*format) {
case 'a':
if (flag) xprintf("%lu", TT.statfs->f_bavail);
else xprintf("%04lo",TT.stat->st_mode & ~S_IFMT);
break;
case 'A':
xprintf("%s",TT.access_str);
break;
case 'b':
if (flag) xprintf("%lu", TT.statfs->f_blocks);
else xprintf("%llu", TT.stat->st_blocks);
break;
case 'B':
xprintf("%lu", TT.stat->st_blksize);
break;
case 'c':
if (flag) xprintf("%lu", TT.statfs->f_files);
break;
case 'd':
if (flag) xprintf("%lu", TT.statfs->f_ffree);
else xprintf("%ldd", TT.stat->st_dev);
break;
case 'D':
xprintf("%llxh", TT.stat->st_dev);
break;
case 'f':
if (flag) xprintf("%lu", TT.statfs->f_bfree);
else xprintf("%lx", TT.stat->st_mode);
break;
case 'F':
xprintf("%s", TT.file_type);
break;
case 'g':
xprintf("%lu", TT.stat->st_gid);
break;
case 'G':
xprintf("%8s", TT.user_name->pw_name);
break;
case 'h':
xprintf("%lu", TT.stat->st_nlink);
break;
case 'i':
if (flag)
xprintf("%d%d", TT.statfs->f_fsid.__val[0], TT.statfs->f_fsid.__val[1]);
else xprintf("%llu", TT.stat->st_ino);
break;
case 'l':
if (flag) xprintf("%ld", TT.statfs->f_namelen);
break;
case 'n':
xprintf("%s", *toys.optargs);
break;
case 'N':
xprintf("`%s'", *toys.optargs);
break;
case 'o':
xprintf("%lu", TT.stat->st_blksize);
break;
case 's':
if (flag) xprintf("%d", TT.statfs->f_frsize);
else xprintf("%llu", TT.stat->st_size);
break;
case 'S':
if (flag) xprintf("%d", TT.statfs->f_bsize);
break;
case 't':
if (flag) xprintf("%lx", TT.statfs->f_type);
break;
case 'u':
xprintf("%lu", TT.stat->st_uid);
break;
case 'U':
xprintf("%8s", TT.user_name->pw_name);
break;
case 'x':
xprintf("%s", date_stat_format(TT.stat->st_atime));
break;
case 'X':
xprintf("%llu", TT.stat->st_atime);
break;
case 'y':
xprintf("%s", date_stat_format(TT.stat->st_mtime));
break;
case 'Y':
xprintf("%llu", TT.stat->st_mtime);
break;
case 'z':
xprintf("%s", date_stat_format(TT.stat->st_ctime));
break;
case 'Z':
xprintf("%llu", TT.stat->st_ctime);
default:
xprintf("%c", *format);
break;
}
}
xprintf("\n");
}
void stat_main(void)
{
int flag_f = toys.optflags & FLAG_f, flag_c = toys.optflags & FLAG_c;
char *fmts[] = {
" File: %N\n"
" Size: %s\t Blocks: %S\t IO Blocks: %B\t%F\n"
"Device: %D\t Inode: %i\t Links: %h\n"
"Access: (%a/%A)\tUid: (%u/%U)\tGid: (%g/%G)\n"
"Access: %x\nModify: %y\nChange: %z",
" 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",
TT.fmt};
if (!flag_f) {
TT.stat = xmalloc(sizeof(struct stat));
if (stat(*toys.optargs, TT.stat) < 0)
perror_exit("stat: '%s'", *toys.optargs);
// function to check the type/mode of file
TT.file_type = check_type_file(TT.stat->st_mode, TT.stat->st_size);
// check user and group name
TT.user_name = getpwuid(TT.stat->st_uid);
TT.group_name = getgrgid(TT.stat->st_gid);
// function to get access in human readable format
format_mode(&TT.access_str, TT.stat->st_mode);
} else {
TT.statfs = xmalloc(sizeof(struct statfs));
if (statfs(*toys.optargs, TT.statfs) < 0)
perror_exit("statfs: '%s'", *toys.optargs);
}
print_stat_format(fmts[!flag_c*flag_f+flag_c], flag_f);
}
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