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glibc headers: arc4random* functions added in glibc 2.36

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Here's the glibc v2.36 announcment noting the addition of arc4random,
arc4random_buf and arc4random_uniform:

  https://sourceware.org/git/?p=glibc.git;a=blob;f=NEWS;h=8420a65cd06874ee09518366b8fba746a557212a;hb=6f4e0fcfa2d2b0915816a3a3a1d48b4763a7dee2

Tested with the testcase from the bug.  I get a compile-time error when
building against older glibc (instead of a linker error), and no errors
(as before) when compiling against v2.36 or later.  And the glibc_compat
regression tests pass.

Fix #20426
This commit is contained in:
Pat Tullmann 2024-06-26 12:51:19 -07:00 committed by Andrew Kelley
parent 5e3bad3556
commit a31fe8aa3e
1 changed files with 6 additions and 0 deletions
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6
lib/libc/include/generic-glibc/stdlib.h vendored
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@ -653,6 +653,11 @@ extern int lcong48_r (unsigned short int __param[7],
struct drand48_data *__buffer)
__THROW __nonnull ((1, 2));
/*
* arc4random* symbols introduced in glibc 2.36:
* https://sourceware.org/git/?p=glibc.git;a=blob;f=NEWS;h=8420a65cd06874ee09518366b8fba746a557212a;hb=6f4e0fcfa2d2b0915816a3a3a1d48b4763a7dee2
*/
# if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 36) || __GLIBC__ > 2
/* Return a random integer between zero and 2**32-1 (inclusive). */
extern __uint32_t arc4random (void)
__THROW __wur;
@ -665,6 +670,7 @@ extern void arc4random_buf (void *__buf, size_t __size)
limit (exclusive). */
extern __uint32_t arc4random_uniform (__uint32_t __upper_bound)
__THROW __wur;
# endif /* glibc v2.36 and later */
# endif /* Use misc. */
#endif /* Use misc or X/Open. */