On Tue, Apr 25, 2017 at 08:52:58AM -0500, Eric Blake wrote:
> On 04/25/2017 08:42 AM, Daniel P. Berrange wrote:
> > On Mon, Apr 24, 2017 at 07:51:49PM +0200, Geert Martin Ijewski wrote:
> >> If no crypto library is included in the build QEMU uses
> >> qcrypto_random_bytes() to generate random data. That function tried to open
> >> /dev/urandom or /dev/random and if openeing neither file worked it errored
> >> out.
> >>
>
> >> +int qcrypto_random_init(Error **errp)
> >> +{
> >> +#ifdef _WIN32
> >> + if (!CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL,
> >> + CRYPT_SILENT | CRYPT_VERIFYCONTEXT)) {
> >> + error_setg_errno(errp, GetLastError(),
> >> + "Unable to create cryptographic provider");
> >
> > Unfortunately the return value of 'GetLastError()' isn't an errno
> > so we can't use error_setg_errno here.
> >
> > Just use error_setg, and report the error value with a '(code=%u)'
> > substitution at the end of the error message.
> >
>
> Or, use error_setg_win32(), which is designed for this purpose.
Oh nice, didn't know that existed !
Regards,
Daniel
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