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* [newlib-cygwin/main] Cygwin: random: drop unused function srandomdev()
@ 2023-11-13 19:03 Corinna Vinschen
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From: Corinna Vinschen @ 2023-11-13 19:03 UTC (permalink / raw)
To: cygwin-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=e9c4a281e56518a5c62a727068fda02a364d3a52
commit e9c4a281e56518a5c62a727068fda02a364d3a52
Author: Corinna Vinschen <corinna@vinschen.de>
AuthorDate: Mon Nov 13 19:37:56 2023 +0100
Commit: Corinna Vinschen <corinna@vinschen.de>
CommitDate: Mon Nov 13 19:50:15 2023 +0100
Cygwin: random: drop unused function srandomdev()
Also drop includes only required for srandomdev().
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Diff:
---
winsup/cygwin/random.cc | 45 ---------------------------------------------
1 file changed, 45 deletions(-)
diff --git a/winsup/cygwin/random.cc b/winsup/cygwin/random.cc
index 3c8682e9adf3..51f5a6e963e0 100644
--- a/winsup/cygwin/random.cc
+++ b/winsup/cygwin/random.cc
@@ -44,11 +44,7 @@ static char sccsid[] = "@(#)random.c 8.2 (Berkeley) 5/19/95";
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/lib/libc/stdlib/random.c,v 1.25 2007/01/09 00:28:10 imp Exp $");
-#include <sys/time.h> /* for srandomdev() */
-#include <fcntl.h> /* for srandomdev() */
#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h> /* for srandomdev() */
/*
* random.c:
@@ -297,47 +293,6 @@ srandom(unsigned x)
__random_unlock();
}
-/*
- * srandomdev:
- *
- * Many programs choose the seed value in a totally predictable manner.
- * This often causes problems. We seed the generator using the much more
- * secure random(4) interface. Note that this particular seeding
- * procedure can generate states which are impossible to reproduce by
- * calling srandom() with any value, since the succeeding terms in the
- * state buffer are no longer derived from the LC algorithm applied to
- * a fixed seed.
- */
-void
-srandomdev()
-{
- size_t len;
-
- if (rand_type == TYPE_0)
- len = sizeof state[0];
- else
- len = rand_deg * sizeof state[0];
-
- if (getentropy ((void *) state, len)) {
- struct timeval tv;
- unsigned long junk;
-
- gettimeofday(&tv, NULL);
- /* Avoid a compiler warning when we really want to get at the
- junk in an uninitialized variable. */
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
- srandom((getpid() << 16) ^ tv.tv_sec ^ tv.tv_usec ^ junk);
-#pragma GCC diagnostic pop
- return;
- }
-
- if (rand_type != TYPE_0) {
- fptr = &state[rand_sep];
- rptr = &state[0];
- }
-}
-
/*
* initstate:
*
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