Mercurial > dropbear

annotate dbhelpers.c @ 1294:56aba7dedbea

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
options for disabling "normal" DH
author Matt Johnston <matt@ucc.asn.au>
date Mon, 02 May 2016 23:48:16 +0200
parents 3017bc7d6238
children 4b1a807a3188
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1283
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1 #include "dbhelpers.h"
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
2 #include "includes.h"
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
3
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
4 /* Erase data */
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
5 void m_burn(void *data, unsigned int len) {
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
6
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
7 #if defined(HAVE_MEMSET_S)
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
8 memset_s(data, len, 0x0, len);
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
9 #elif defined(HAVE_EXPLICIT_BZERO)
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
10 explicit_bzero(data, len);
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
11 #else
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
12 /* Based on the method in David Wheeler's
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
13 * "Secure Programming for Linux and Unix HOWTO". May not be safe
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
14 * against link-time optimisation. */
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
15 volatile char *p = data;
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
16
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
17 if (data == NULL)
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
18 return;
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
19 while (len--) {
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
20 *p++ = 0x0;
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
21 }
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
22 #endif
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
23 }
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
24
3017bc7d6238 move m_burn and function attributes to dbhelpers
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
25