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annotate libtomcrypt/src/misc/zeromem.c @ 1861:2b3a8026a6ce

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Add re-exec for server This allows ASLR to re-randomize the address space for every connection, preventing some vulnerabilities from being exploitable by repeated probing. Overhead (memory and time) is yet to be confirmed. At present this is only enabled on Linux. Other BSD platforms with fexecve() would probably also work though have not been tested.
author Matt Johnston <matt@ucc.asn.au>
date Sun, 30 Jan 2022 10:14:56 +0800
parents 6e09cb3d1230
children
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 */
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9 #include "tomcrypt.h"
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10 #include "dbhelpers.h"
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12 /**
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13 @file zeromem.c
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14 Zero a block of memory, Tom St Denis
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15 */
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17 /**
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18 Zero a block of memory
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19 @param out The destination of the area to zero
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20 @param outlen The length of the area to zero (octets)
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21 */
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22 void zeromem(volatile void *out, size_t outlen)
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23 {
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24 m_burn((void*)out, outlen);
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25 }
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26
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27 /* ref: $Format:%D$ */
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28 /* git commit: $Format:%H$ */
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29 /* commit time: $Format:%ai$ */