Thread: Problems with stat() <sys/stat.h>

Hi guys, I have a project where we have to implement the ls command and some options.

One of those options is -l, and so I am trying to get the file information in hand.

I am using this for the code:

Code:

getcwd(fileName, (MAX_FNAME + 1));
strcat(fileName, "/");

if (stat(fileName, status) == -1) {
  puts("Status Failed!");
  return 0;
}

No matter what I pass in as the fileName, I get -1 back =\
I have checked what fileName is, and it looks ok to me...

Any ideas?

And what is errno set to?

I might be wrong about this, but maybe you have to put the current working directory path before the filename?

Also reading the manpage entry it says that you need permissions set to traverse though all dierctories along the path, but I doubt thats the problem.

I did a perror instead of printf (I don't know how to get errno..)

and I got "Bad address"...

So I printed out fileName, and I get this: .../home/project5/.

That period is messing me up? Lemme try to fix it

Hm... I have this in between the strcat and the if (stat...

Code:

if ((strcmp(dirent[i]->d_name, ".") != 0) ||
	(strcmp(dirent[i]->d_name, "..") != 0)){
    puts("1");
    strcat(fileName, dirent[i]->d_name);
}

And somehow when the d_name is ".", it stills gets to that line =|

Originally Posted by MacGyver

Follow the (broken) logic. You're saying if it's not equal to either one, it's ok to be added. That means it will always add it.

Hint: strcmp() returns 0 on a match.

Hee hee xD
I wanted a "&&" there. ;D

Now the fileName, which is the path, is correct.. The only thing is that I still get the same error when trying to use stat() =\

Originally Posted by robwhit

And what is errno set to?

errno is 14

I figured it out! Teehee!

status wasn't allocated anywhere, that was the problem.. hihi xD

Originally Posted by headbr

errno is 14

That should have a corresponding #define for it. Check your man page for stat to see what the values for errno are that it sets, and test them against it.