Re: [PATCH] Be consistent with setlocale error handling

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On Tue, Apr 12, 2016 at 10:00:48AM -0400, Cole Robinson wrote:
> Take setlocale/gettext error handling pattern from tools/virsh-*
> and use it in all the other standalone binaries. The changes are
> 
> * Ignore setlocale errors. virsh has done this forever, presumably for
>   good reason. This has been partially responsible for some bug reports:
> 
>   https://bugzilla.redhat.com/show_bug.cgi?id=1312688
>   https://bugzilla.redhat.com/show_bug.cgi?id=1026514
>   https://bugzilla.redhat.com/show_bug.cgi?id=1016158
> 
> * Report the failed function name
> * Report strerror
> ---
>  daemon/libvirtd.c             | 20 ++++++++++++++++----
>  src/locking/lock_daemon.c     | 20 ++++++++++++++++----
>  src/locking/sanlock_helper.c  | 16 ++++++++++++----
>  src/logging/log_daemon.c      | 20 ++++++++++++++++----
>  src/lxc/lxc_controller.c      | 20 ++++++++++++++++----
>  src/network/leaseshelper.c    | 16 ++++++++++++----
>  src/security/virt-aa-helper.c | 16 ++++++++++++----
>  src/storage/parthelper.c      | 16 ++++++++++++----
>  src/util/iohelper.c           | 16 ++++++++++++----
>  9 files changed, 124 insertions(+), 36 deletions(-)
> 
> diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c
> index 3d38a46..9488950 100644
> --- a/daemon/libvirtd.c
> +++ b/daemon/libvirtd.c
> @@ -1172,10 +1172,22 @@ int main(int argc, char **argv) {
>          {0, 0, 0, 0}
>      };
>  
> -    if (setlocale(LC_ALL, "") == NULL ||
> -        bindtextdomain(PACKAGE, LOCALEDIR) == NULL ||
> -        textdomain(PACKAGE) == NULL ||
> -        virInitialize() < 0) {
> +    if (!setlocale(LC_ALL, "")) {
> +        perror("setlocale");
> +        /* failure to setup locale is not fatal */
> +    }
> +
> +    if (!bindtextdomain(PACKAGE, LOCALEDIR)) {
> +        perror("bindtextdomain");
> +        exit(EXIT_FAILURE);
> +    }
> +
> +    if (!textdomain(PACKAGE)) {
> +        perror("textdomain");
> +        exit(EXIT_FAILURE);
> +    }
> +
> +    if (virInitialize() < 0) {
>          fprintf(stderr, _("%s: initialization failed\n"), argv[0]);
>          exit(EXIT_FAILURE);
>      }

Instead of repeating this, how about we add  src/util/virgettext.h and
then have


  int virGettextInit(const char *package, const char *localedir) {
    if (!setlocale(LC_ALL, "")) {
        perror("setlocale");
        /* failure to setup locale is not fatal */
    }

    if (!bindtextdomain(PACKAGE, LOCALEDIR)) {
        perror("bindtextdomain");
        return -1;
    }

    if (!textdomain(PACKAGE)) {
        perror("textdomain");
        return -1;
    }
    return 0;
  }


And in each app we can just do

   if (virGettextInit(PACKAGE, LOCALEDIR) < 0)
      exit(EXIT_FAILURE);

Regards,
Daniel
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