Re: [edk2-devel] [edk2-libc Patch 1/1] ek2-libc: realpath function signature doesn't match the standard

["Laszlo Ersek" <lersek@redhat.com>]

On 10/26/23 16:17, Jayaprakash, N wrote:
> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4574
> 
> This commit is for processing the below PR on edk2-libc repo
> https://github.com/tianocore/edk2-libc/pull/10
> The realpath function signature in stdlib of edk2-libc doesn't match
> signature as per the standard definition of this function given below
> https://pubs.opengroup.org/onlinepubs/009695399/functions/realpath.html
> This patch extracted from the above pull request fixes this issue.
> 
> Cc: Rebecca Cran <rebecca@bsdio.com>
> Cc: Michael D Kinney <michael.d.kinney@intel.com>
> Cc: Jayaprakash N <n.jayaprakash@intel.com>
> Signed-off-by: Kloper Dimitry <dimitry.kloper@intel.com>
> ---
>  StdLib/Include/stdlib.h       | 4 ++--
>  StdLib/LibC/StdLib/realpath.c | 2 +-
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/StdLib/Include/stdlib.h b/StdLib/Include/stdlib.h
> index 0b9dfd3..022ddbd 100644
> --- a/StdLib/Include/stdlib.h
> +++ b/StdLib/Include/stdlib.h
> @@ -74,7 +74,7 @@
>                             const wchar_t * __restrict src, size_t limit);
>  
>      ################  Miscelaneous functions for *nix compatibility
> -    char       *realpath    (char *file_name, char *resolved_name);
> +    char       *realpath    (const char *file_name, char *resolved_name);
>      const char *getprogname (void);
>      void        setprogname (const char *progname);
>  
> @@ -875,7 +875,7 @@ size_t  wcstombs(char * __restrict Dest, const wchar_t * __restrict Src, size_t
>      @retval NULL                    An error occured.
>      @retval resolved_name.
>  **/
> -char * realpath(char *file_name, char *resolved_name);
> +char * realpath(const char *file_name, char *resolved_name);
>  
>  /** The getprogname() function returns the name of the program.  If the name
>      has not been set yet, it will return NULL.
> diff --git a/StdLib/LibC/StdLib/realpath.c b/StdLib/LibC/StdLib/realpath.c
> index 3d4118d..29abe9a 100644
> --- a/StdLib/LibC/StdLib/realpath.c
> +++ b/StdLib/LibC/StdLib/realpath.c
> @@ -34,7 +34,7 @@
>  **/
>  char *
>  realpath(
> -  char *file_name,
> +  const char *file_name,
>    char *resolved_name
>    )
>  {

Reviewed-by: Laszlo Ersek <lersek@redhat.com>



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