Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Paranoia: choke noisily on EOF from /dev/urandom.

This commit is contained in:
riastradh 2014-10-04 11:23:35 +00:00
parent 66f474049f
commit c4ba54210e
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
sbin/gpt/gpt_uuid.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: gpt_uuid.c,v 1.8 2014/10/04 10:30:13 riastradh Exp $ */
/* $NetBSD: gpt_uuid.c,v 1.9 2014/10/04 11:23:35 riastradh Exp $ */
/*-
* Copyright (c) 2014 The NetBSD Foundation, Inc.
@ -32,7 +32,7 @@
#include <sys/cdefs.h>
#ifdef __RCSID
__RCSID("$NetBSD: gpt_uuid.c,v 1.8 2014/10/04 10:30:13 riastradh Exp $");
__RCSID("$NetBSD: gpt_uuid.c,v 1.9 2014/10/04 11:23:35 riastradh Exp $");
#endif
#include <err.h>
@ -252,6 +252,8 @@ gpt_uuid_generate(gpt_uuid_t t)
nread = read(fd, p, n);
if (nread < 0)
err(1, "read(/dev/urandom)");
if (nread == 0)
errx(1, "EOF from /dev/urandom");
if ((size_t)nread > n)
errx(1, "read too much: %zd > %zu", nread, n);
}