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crypto: add getCurves() to get supported ECs #1914

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mscdex
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@mscdex mscdex commented Jun 7, 2015

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@mscdex mscdex added the crypto Issues and PRs related to the crypto subsystem. label Jun 7, 2015
@silverwind silverwind added the semver-minor PRs that contain new features and should be released in the next minor version. label Jun 7, 2015
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👍 nice feature, will be pretty useful. Looking good from my side, though I can't review the C++ part.

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mscdex commented Jun 7, 2015

/cc @nodejs/crypto

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mscdex commented Jun 8, 2015

Looks like one of the Windows CI boxes has too little memory?

EC_builtin_curve* curves =
reinterpret_cast<EC_builtin_curve*>(malloc(sizeof(EC_builtin_curve) * len));

if (curves) {
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Won't this just fail silently if you run out of memory in the malloc call? Perhaps something like this would be simpler.

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Fixed

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Local<Array> arr = Array::New(env->isolate());
size_t len = EC_get_builtin_curves(NULL, 0);
EC_builtin_curve* curves =
reinterpret_cast<EC_builtin_curve*>(malloc(sizeof(EC_builtin_curve) * len));
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Style: four spaces indent for line continuations and can you use sizeof(*curves)?

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mscdex commented Jun 8, 2015

Commit updated as per suggestions.


if (num_curves) {
alloc_size = sizeof(*curves) * num_curves;
curves = reinterpret_cast<EC_builtin_curve*>(malloc(alloc_size));
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Micro-nit: just static_cast is sufficient here.

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LGTM with nits.

mscdex added a commit that referenced this pull request Jun 8, 2015
PR-URL: #1914
Reviewed-By: Roman Reiss <me@silverwind.io>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
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mscdex commented Jun 8, 2015

Landed in 38d1afc.

@mscdex mscdex closed this Jun 8, 2015
@mscdex mscdex deleted the crypto-get-curves branch June 8, 2015 16:38
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May as well update the doc change in deb8b87 again to point to this method.

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4 participants