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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
%n File name
%s Fragment size
%S Optimal transfer block size
%t File system type
*/
#define FOR_stat
#include "toys.h"
GLOBALS(
char *fmt;
void *stat;
char *file_type;
struct passwd *user_name;
struct group *group_name;
char access_str[11];
)
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 int print_stat(char type) {
struct stat *stat = (struct stat*)TT.stat;
switch (type) {
case 'a':
xprintf("%04lo", stat->st_mode & ~S_IFMT);
break;
case 'A':
xprintf("%s", TT.access_str);
break;
case 'b':
xprintf("%llu", stat->st_blocks);
break;
case 'B':
xprintf("%lu", stat->st_blksize);
break;
case 'd':
xprintf("%ldd", stat->st_dev);
break;
case 'D':
xprintf("%llxh", stat->st_dev);
break;
case 'f':
xprintf("%lx", stat->st_mode);
break;
case 'F':
xprintf("%s", TT.file_type);
break;
case 'g':
xprintf("%lu", stat->st_gid);
break;
case 'G':
xprintf("%8s", TT.user_name->pw_name);
break;
case 'h':
xprintf("%lu", stat->st_nlink);
break;
case 'i':
xprintf("%llu", stat->st_ino);
break;
case 'N':
xprintf("`%s'", *toys.optargs);
break;
case 'o':
xprintf("%lu", stat->st_blksize);
break;
case 's':
xprintf("%llu", stat->st_size);
break;
case 'u':
xprintf("%lu", stat->st_uid);
break;
case 'U':
xprintf("%8s", TT.user_name->pw_name);
break;
case 'x':
xprintf("%s", date_stat_format(stat->st_atime));
break;
case 'X':
xprintf("%llu", stat->st_atime);
break;
case 'y':
xprintf("%s", date_stat_format(stat->st_mtime));
break;
case 'Y':
xprintf("%llu", stat->st_mtime);
break;
case 'z':
xprintf("%s", date_stat_format(stat->st_ctime));
break;
case 'Z':
xprintf("%llu", stat->st_ctime);
break;
default:
return 1;
}
return 0;
}
static int print_statfs(char type) {
struct statfs *statfs = (struct statfs*)TT.stat;
switch (type) {
case 'a':
xprintf("%lu", statfs->f_bavail);
break;
case 'b':
xprintf("%lu", statfs->f_blocks);
break;
case 'c':
xprintf("%lu", statfs->f_files);
break;
case 'd':
xprintf("%lu", statfs->f_ffree);
break;
case 'f':
xprintf("%lu", statfs->f_bfree);
break;
case 'i':
xprintf("%x%x", statfs->f_fsid.__val[0], statfs->f_fsid.__val[1]);
break;
case 'l':
xprintf("%ld", statfs->f_namelen);
break;
case 's':
xprintf("%d", statfs->f_frsize);
break;
case 'S':
xprintf("%d", statfs->f_bsize);
break;
case 't':
xprintf("%lx", statfs->f_type);
break;
default:
return 1;
}
return 0;
}
static int do_stat(char *path)
{
struct stat *statf = (struct stat*)TT.stat;
size_t i;
struct {
mode_t mode;
char *str;
} types[] = {
{S_IFDIR, "directory"},
{S_IFCHR, "character device"},
{S_IFBLK, "block device"},
{S_IFREG, "regular file"},
{S_IFIFO, "FIFO (named pipe)"},
{S_IFLNK, "symbolic link"},
{S_IFSOCK, "socket"}
};
if (stat(path, statf) < 0) return 1;
for (i = 0; i < sizeof(types)/sizeof(*types); i++)
if ((statf->st_mode & S_IFMT) == types[i].mode) TT.file_type = types[i].str;
if (!statf->st_size && (statf->st_mode & S_IFMT) == S_IFREG)
TT.file_type = "regular empty file";
// check user and group name
TT.user_name = getpwuid(statf->st_uid);
TT.group_name = getgrgid(statf->st_gid);
// function to get access in human readable format
format_mode(&TT.access_str, statf->st_mode);
return 0;
}
static int do_statfs(char *path)
{
return statfs(path, TT.stat) < 0;
}
void stat_main(void)
{
struct {
char *fmt;
int (*do_it)(char*);
int (*print_it)(char);
size_t size;
} d, ds[2] = {
{" File: %N\n"
" Size: %s\t Blocks: %b\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",
do_stat, print_stat, sizeof(struct stat)},
{" 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",
do_statfs, print_statfs, sizeof(struct statfs)}
};
d = ds[toys.optflags & FLAG_f];
TT.stat = xmalloc(d.size);
if (toys.optflags & FLAG_c) d.fmt = TT.fmt;
for (; *toys.optargs; toys.optargs++) {
char *format = d.fmt;
if (d.do_it(*toys.optargs)) {
perror_msg("'%s'", *toys.optargs);
continue;
}
for (; *format; format++) {
if (*format != '%') {
xputc(*format);
continue;
}
format++;
if (*format == 'n') xprintf("%s", *toys.optargs);
else if (d.print_it(*format)) xputc(*format);
}
xputc('\n');
}
if(CFG_TOYBOX_FREE) free(TT.stat);
}
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