diff options
Diffstat (limited to 'lib/isc/unix/entropy.c')
| -rw-r--r-- | lib/isc/unix/entropy.c | 29 |
1 files changed, 20 insertions, 9 deletions
diff --git a/lib/isc/unix/entropy.c b/lib/isc/unix/entropy.c index 4c0d0d0..0e9e297 100644 --- a/lib/isc/unix/entropy.c +++ b/lib/isc/unix/entropy.c @@ -1,8 +1,8 @@ /* - * Copyright (C) 2004-2006 Internet Systems Consortium, Inc. ("ISC") + * Copyright (C) 2004-2007, 2009 Internet Systems Consortium, Inc. ("ISC") * Copyright (C) 2000-2003 Internet Software Consortium. * - * Permission to use, copy, modify, and distribute this software for any + * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * @@ -15,7 +15,7 @@ * PERFORMANCE OF THIS SOFTWARE. */ -/* $Id: entropy.c,v 1.71.18.7 2006/12/07 04:53:03 marka Exp $ */ +/* $Id: entropy.c,v 1.80.332.2 2009/02/16 23:47:15 tbox Exp $ */ /* \file unix/entropy.c * \brief @@ -31,6 +31,9 @@ #include <sys/socket.h> #include <sys/un.h> +#ifdef HAVE_NANOSLEEP +#include <time.h> +#endif #include <unistd.h> #include <isc/platform.h> @@ -153,12 +156,12 @@ get_from_usocketsource(isc_entropysource_t *source, isc_uint32_t desired) { source->sources.usocket.status = isc_usocketsource_ndesired; goto eagain_loop; - } + } INSIST(n == 2); source->sources.usocket.status = isc_usocketsource_wrote; /*FALLTHROUGH*/ - + case isc_usocketsource_wrote: if (recvfrom(fd, buf, 1, 0, NULL, NULL) != 1) { if (errno == EAGAIN) { @@ -166,15 +169,23 @@ get_from_usocketsource(isc_entropysource_t *source, isc_uint32_t desired) { * The problem of EAGAIN (try again * later) is a major issue on HP-UX. * Solaris actually tries the recvfrom - * call again, while HP-UX just dies. + * call again, while HP-UX just dies. * This code is an attempt to let the * entropy pool fill back up (at least * that's what I think the problem is.) - * We go to eagain_loop because if we + * We go to eagain_loop because if we * just "break", then the "desired" * amount gets borked. */ +#ifdef HAVE_NANOSLEEP + struct timespec ts; + + ts.tv_sec = 0; + ts.tv_nsec = 1000000; + nanosleep(&ts, NULL); +#else usleep(1000); +#endif goto eagain_loop; } if (errno == EWOULDBLOCK || errno == EINTR) @@ -201,7 +212,7 @@ get_from_usocketsource(isc_entropysource_t *source, isc_uint32_t desired) { } else n = 0; break; - + default: goto err; } @@ -491,7 +502,7 @@ isc_entropy_createfilesource(isc_entropy_t *ent, const char *fname) { ret = isc__errno2result(errno); goto errout; } - /* + /* * Solaris 2.5.1 does not have support for sockets (S_IFSOCK), * but it does return type S_IFIFO (the OS believes that * the socket is a fifo). This may be an issue if we tell |
