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upstream: chacha: avoid -Wunterminated-string-initialization

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warning

The sizes of sigma[] and tau[] aren't used, so include a trailing NUL and
thereby avoid upsetting modern compilers about use of dangerous, valid C.

ok deraadt djm

OpenBSD-Commit-ID: 030a71ff16bb1e6135170c6507bc558eabe7345c
This commit is contained in:
tb@openbsd.org authored and Damien Miller committed 2026-05-21 14:06:34 +10:00
1 parent 33392024f4
commit 62fce76130
1 file changed
+3 -3
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chacha.c
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@@ -1,4 +1,4 @@
/* $OpenBSD: chacha.c,v 1.2 2023/07/17 05:26:38 djm Exp $ */
/* $OpenBSD: chacha.c,v 1.3 2026/05/18 04:14:57 tb Exp $ */
/*
chacha-merged.c version 20080118
D. J. Bernstein
@@ -48,8 +48,8 @@ typedef struct chacha_ctx chacha_ctx;
a = PLUS(a,b); d = ROTATE(XOR(d,a), 8); \
c = PLUS(c,d); b = ROTATE(XOR(b,c), 7);
static const char __attribute__ ((__nonstring__)) sigma[16] = "expand 32-byte k";
static const char __attribute__ ((__nonstring__)) tau[16] = "expand 16-byte k";
static const char sigma[] = "expand 32-byte k";
static const char tau[] = "expand 16-byte k";
void
chacha_keysetup(chacha_ctx *x,const u8 *k,u32 kbits)