diff options
| author | Philip Guenther <guenther@cvs.openbsd.org> | 2024-08-02 01:53:22 +0000 |
|---|---|---|
| committer | Philip Guenther <guenther@cvs.openbsd.org> | 2024-08-02 01:53:22 +0000 |
| commit | 0f7451ad421bc9f8573147b7669baf5fed22d84b (patch) | |
| tree | e6b2acb3422b52def4d72aa56f52563fdc8735c9 /sys/dev/rnd.c | |
| parent | c5fb7250d82c9a7f0eac87e5aa6eaa8ff9797bef (diff) | |
getentropy(2) is in POSIX-2024, so adjust the #include visibility,
change the "too much" error to EINVAL, add GETENTROPY_MAX to
<limits.h> (via sys/syslimits.h), and update the manpage.
ok deraadt@
Diffstat (limited to 'sys/dev/rnd.c')
| -rw-r--r-- | sys/dev/rnd.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/sys/dev/rnd.c b/sys/dev/rnd.c index 4ad4a73a0fc..259721d90c0 100644 --- a/sys/dev/rnd.c +++ b/sys/dev/rnd.c @@ -1,4 +1,4 @@ -/* $OpenBSD: rnd.c,v 1.228 2024/06/14 10:17:05 claudio Exp $ */ +/* $OpenBSD: rnd.c,v 1.229 2024/08/02 01:53:21 guenther Exp $ */ /* * Copyright (c) 2011,2020 Theo de Raadt. @@ -75,6 +75,7 @@ #include <sys/msgbuf.h> #include <sys/mount.h> #include <sys/syscallargs.h> +#include <sys/syslimits.h> #include <crypto/sha2.h> @@ -814,11 +815,11 @@ sys_getentropy(struct proc *p, void *v, register_t *retval) syscallarg(void *) buf; syscallarg(size_t) nbyte; } */ *uap = v; - char buf[256]; + char buf[GETENTROPY_MAX]; int error; if (SCARG(uap, nbyte) > sizeof(buf)) - return (EIO); + return (EINVAL); arc4random_buf(buf, SCARG(uap, nbyte)); if ((error = copyout(buf, SCARG(uap, buf), SCARG(uap, nbyte))) != 0) return (error); |