getentropy(2) exists on Linux. I do not know when it was introduced, but my Arch... | Hacker News

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		deathanatos on April 3, 2018 \| parent \| context \| favorite \| on: Cryptographic Right Answers getentropy(2) exists on Linux. I do not know when it was introduced, but my Arch system has it. (I feel as if your comment implies that it is the BSD equivalent to getrandom(2).)

loeg on April 3, 2018 | [–]

OpenBSD introduced getentropy(2). Since it is a subset of getrandom(2) functionality, glibc added a compatibility wrapper that provides the same ABI.

(FreeBSD only recently added the getrandom(2) syscall and getentropy(3) libc wrapper functions in -CURRENT.)

jwilk on April 4, 2018 | [–]

The getentropy() function first appeared in glibc 2.25.

http://man7.org/linux/man-pages/man3/getentropy.3.html

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