head	1.2;
access;
symbols;
locks; strict;
comment	@# @;


1.2
date	2022.09.11.19.33.05;	author schmonz;	state dead;
branches;
next	1.1;
commitid	U2Ki3xiyPWB5RtTD;

1.1
date	2022.08.30.17.55.31;	author schmonz;	state Exp;
branches;
next	;
commitid	TzVUibcj0mpxHVRD;


desc
@@


1.2
log
@Update to 20220901. From the changelog:

- fixed randombytes(), uses getentropy() and /dev/urandom where
  getentropy() does not exist
@
text
@$NetBSD: patch-randombytes.c-02devurandom,v 1.1 2022/08/30 17:55:31 schmonz Exp $

Apply upstream commit 0cb7bb4 to fall back to /dev/urandom on systems
where getentropy() is not present.

--- randombytes.c-02devurandom.orig	2022-08-30 17:47:01.000000000 +0000
+++ randombytes.c-02devurandom
@@@@ -0,0 +1,43 @@@@
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include "randombytes.h"
+
+static int fd = -1;
+
+void randombytes(void *xv, long long xlen) {
+
+    long long i;
+    unsigned char *x = xv;
+
+    if (fd == -1) {
+        for (;;) {
+#ifdef O_CLOEXEC
+            fd = open("/dev/urandom", O_RDONLY | O_CLOEXEC);
+#else
+            fd = open("/dev/urandom", O_RDONLY);
+            fcntl(fd, F_SETFD, 1);
+#endif
+            if (fd != -1) break;
+            sleep(1);
+        }
+    }
+
+    while (xlen > 0) {
+        if (xlen < 1048576)
+            i = xlen;
+        else
+            i = 1048576;
+
+        i = read(fd, x, i);
+        if (i < 1) {
+            sleep(1);
+            continue;
+        }
+
+        x += i;
+        xlen -= i;
+    }
+    __asm__ __volatile__("" : : "r"(xv) : "memory");
+}
@


1.1
log
@Apply upstream commit 0cb7bb4 to fall back to /dev/urandom on systems
where getentropy() is not present. Bump PKGREVISION.
@
text
@d1 1
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$NetBSD$
@