Unable to find the Stat command in busybox in I.MX28 BSP

[srinivasanshanm]

Dear I.MX community,

Could you please let me know how to get the stat command in busybox of i.MX28 BSP, as I require the stat command inorder to utilize this stat command in application for getting timestamps of the files & folder entries

Kindly do the needful as early as possible

Thanks in advance,

[YixingKong]

Srinivasan

We have not got your response yet and will close the discussion in 3 days. If you still need help, please feel free to reply with an update to this discussion.

Thanks,

Yixing

[srinivasanshanm]

Pls close this thread... thanks a lot for your support it is really helpfull to me n other s as well

[YixingKong]

Srinivasan

Had your issue got resolved? If yes, we are going to close the discussion in 3 days. If you still need help, please feel free to reply with an update to this discussion.

Thanks,

Yixing

[BrilliantovKiri]

Hello!

1. You can reconfigure busybox and enable stat command in it.

2. You can simple programm, as example:

#include <stdio.h>

#include <sys/stat.h>

#include <errno.h>

#include <string.h>

int main(int argc, char *argv[])

{

    if (argc != 2)

        printf("Unknown file!\n");

    else {

        struct stat info;

        const char *file = argv[1];

        if (stat(file, &info))

            printf("Failed get information abot \"%s\", errno %d (%s)\n",

                    file, errno, strerror(errno));

        else

            printf("Information about %s\n"

                    "inode %u\n"

                    "owner %u\n"

                    "group %u\n"

                    "size %u\n",

                    file,

                    info.st_ino,

                    info.st_uid,

                    info.st_gid,

                    info.st_size);

    }

    return 0;

}

[srinivasanshanm]

As am new to busy box, Could you pls let me know how to reconfigure the busybox with stat command,

But the above code snippet doesn't give timestamps of folders & file entries, where basically I need to check for time stamps of files & folder entries present in my usb stick in my application

I verified the same in my pc for the file & folders, could you pls help me out how this can be achieved in the i.mx28 target

Timestamp for file

user@user-desktop:~/Desktop$ stat 2.txt

  File: `2.txt'

  Size: 4065          Blocks: 8          IO Block: 4096   regular file

Device: 807h/2055d    Inode: 15469810    Links: 1

Access: (0644/-rw-r--r--)  Uid: ( 1000/    user)   Gid: ( 1000/    user)

Access: 2014-03-20 11:51:10.111574933 +0530

Modify: 2014-03-20 11:51:09.191579414 +0530

Change: 2014-03-20 11:51:09.191579414 +0530

Time stamp for folder

user@user-desktop:~/Desktop$ stat parser_test

  File: `parser_test'

  Size: 4096          Blocks: 8          IO Block: 4096   directory

Device: 807h/2055d    Inode: 17448127    Links: 5

Access: (0755/drwxr-xr-x)  Uid: ( 1000/    user)   Gid: ( 1000/    user)

Access: 2014-03-20 12:08:16.591577008 +0530

Modify: 2014-03-20 12:08:15.581889479 +0530

Change: 2014-03-20 12:08:15.581889479 +0530

user@user-desktop:~/Desktop$

Kindly do the needful as early as possible

[BrilliantovKiri]

Hello!

For reconfigure BusyBox you should change directory to BusyBox source directory and run "make config" config.

For output format time string you can use  http://man7.org/linux/man-pages/man3/strftime.3.html and http://man7.org/linux/man-pages/man2/stat.2.html for get information, example:

#include <stdio.h>

#include <sys/stat.h>

#include <errno.h>

#include <string.h>

#include <time.h>

int main(int argc, char *argv[])

{

    if (argc != 2)

        printf("Unknown file!\n");

    else {

        struct stat info;

        const char *file = argv[1];

        if (stat(file, &info))

            printf("Failed get information abot \"%s\", errno %d (%s)\n",

                    file, errno, strerror(errno));

        else {

            char at[30] = {0}, mt[30] = , ct[30] = ;

            strftime(at, 30, "%F %T %z", localtime(&info.st_atime));

            strftime(mt, 30, "%F %T %z", localtime(&info.st_mtime));

            strftime(ct, 30, "%F %T %z", localtime(&info.st_ctime));

            printf("Information about %s\n"

                    "inode %u\n"

                    "owner %u\n"

                    "group %u\n"

                    "size %u\n"

                    "last access %s\n"

                    "last modification %s\n"

                    "last change %s\n",

                    file,

                    info.st_ino,

                    info.st_uid,

                    info.st_gid,

                    info.st_size,

                    at,

                    mt,

                    ct);

        }

    }

    return 0;

}

And output:

$ ./a.out a.out

Information about a.out

inode 6291480

owner 1000

group 1000

size 8118

last access 2014-03-20 11:16:12 +0400

last modification 2014-03-20 11:16:11 +0400

last change 2014-03-20 11:16:11 +0400

$ ./a.out /etc

Information about /etc

inode 7340033

owner 0

group 0

size 4096

last access 2014-03-20 11:07:01 +0400

last modification 2014-03-20 11:06:55 +0400

last change 2014-03-20 11:06:55 +0400