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Bug 1516642 - Add a function declaration for arc4random_buf in expat. r=peterv
The function has been in bionic (Android's libc since the first commit in the upstream repository), but it's not been in stdlib.h until recently. As it happens, we have a similar declaration in xpcom/base/nsUUIDGenerator.cpp. Differential Revision: https://phabricator.services.mozilla.com/D19120 --HG-- extra : moz-landing-system : lando
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‎parser/expat/lib/xmlparse.c‎

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@@ -818,6 +818,13 @@ gather_time_entropy(void)
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# include <bsd/stdlib.h>
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#endif
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/* BEGIN MOZILLA CHANGE (not all Android NDK versions have the function
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* declaration, although the function has been available in bionic forever) */
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#if defined(HAVE_ARC4RANDOM_BUF) && defined(__ANDROID__)
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__attribute__((visibility("default"))) void arc4random_buf(void*, size_t);
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#endif
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/* END MOZILLA CHANGE */
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static unsigned long
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ENTROPY_DEBUG(const char * label, unsigned long entropy) {
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/* BEGIN MOZILLA CHANGE (don't getenv every time we set up a hash) */

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