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a7afade170
Make sure to explicitly clear memory that is used for password input. memset is often optimized out by the compiler. Brought to attention by the OpenBSD community, see: https://marc.info/?t=146989502600003&r=1&w=2 Thread subject: x11/slock: clear passwords with explicit_bzero Changes: - explicit_bzero.c import from libressl-portable. - Makefile: add COMPATSRC for compatibility src. - config.mk: add separate *BSD section in config.mk to simply uncomment it on these platforms.
20 lines
331 B
C
20 lines
331 B
C
/* $OpenBSD: explicit_bzero.c,v 1.3 2014/06/21 02:34:26 matthew Exp $ */
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/*
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* Public domain.
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* Written by Matthew Dempsky.
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*/
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#include <string.h>
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__attribute__((weak)) void
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__explicit_bzero_hook(void *buf, size_t len)
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{
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}
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void
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explicit_bzero(void *buf, size_t len)
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{
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memset(buf, 0, len);
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__explicit_bzero_hook(buf, len);
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}
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