Hi Daryl,
Thank you for your quick answer.
that command shows the file content as expected.
I'll try to check the information you suggested and post the results here.
Mauro
On Wed, Jul 24, 2013 at 2:52 PM, Mcdaniel, Daryl
<daryl.mcdan...@intel.com>wrote:
> Mauro,****
>
> ** **
>
> After a quick scan of your email, I can’t see anything wrong.****
>
> I’ll try to reproduce it this afternoon and get back to you with my
> results.****
>
> ** **
>
> Sorry, but I have to ask the following stupid questions.****
>
> **1) **What happens if you enter “type fs0:\file.txt” at a (U)Efi
> Shell prompt?****
>
> **2) **Have you tried checking errno or EfiErrno for additional
> information after the fopen() failed?****
>
> ** **
>
> Daryl McDaniel****
>
> ** **
>
> *From:* Mauro Faccenda [mailto:facce...@gmail.com]
> *Sent:* Wednesday, July 24, 2013 10:39 AM
> *To:* edk2-devel@lists.sourceforge.net
> *Subject:* [edk2] simple file operations using stdio.h****
>
> ** **
>
> Hi all,****
>
> ** **
>
> I am sorry to ask such a simple question and I swear before asking to this
> list I've searched for some solutions and couldn't fine one that worked for
> me.****
>
> ** **
>
> I need to make some basic file operations using the fopen and fclose. So,
> my code is this simple:****
>
> ** **
>
> --****
>
> #include <stdio.h>****
>
> #include <unistd.h>****
>
> ** **
>
> int main(int argc, char *argv[])****
>
> {****
>
> char currentdir[1024];****
>
> ** **
>
> if(getcwd(currentdir, sizeof(currentdir)) != NULL) printf("Working dir:
> '%s'\n");****
>
> if(fopen("file.txt", "rb") == NULL) printf("Couldn't open 'file.txt'
> file\n");****
>
> if(fopen("fs0:\\file.txt", "rb") == NULL) printf("Couldn't open
> 'fs0:\\file.txt' file\n");****
>
> ** **
>
> return(0);****
>
> }****
>
> --****
>
> ** **
>
> And the .inf:****
>
> --****
>
> [Defines]****
>
> INF_VERSION = 0x00010006****
>
> BASE_NAME = Test****
>
> FILE_GUID = 08f6ab0d-57ca-4759-b217-47ca02a368c5
> ****
>
> MODULE_TYPE = UEFI_APPLICATION****
>
> VERSION_STRING = 0.1****
>
> ENTRY_POINT = ShellCEntryLib****
>
> ** **
>
> [Sources]****
>
> Test.c****
>
> ** **
>
> [Packages]****
>
> StdLib/StdLib.dec****
>
> MdePkg/MdePkg.dec ****
>
> ** **
>
> [LibraryClasses]****
>
> DevShell****
>
> LibC****
>
> ShellCEntryLib****
>
> --****
>
> ** **
>
> And I run it after typing 'fs0:' to have a working dir.****
>
> ** **
>
> The program output is:****
>
> ** **
>
> --****
>
> Working dir: 'fs0:\'****
>
> Couldn't open 'file.txt' file****
>
> Couldn't open 'fs0:\file.txt' file****
>
> --****
>
> ** **
>
> Is it supposed to work? If so, how can I find out why it isn't?****
>
> ** **
>
> Thanks in advance,****
>
> ** **
>
> Mauro****
>
> ** **
>
> ** **
>
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