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Fix access to the bintoasc mapping in the libksba support.

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* common/ksba-io-support.c (has_only_base64): Use memchr since calling
strchr on a non-NUL terminated string is undefined behavior.

--

Signed-off-by: Collin Funk <collin.funk1@gmail.com>

This patch has been stripped from Colin's original patch because this
is not just about a warning but an actual bug.  That bug was
introduced in 2003 by me.  - wk
This commit is contained in:
Collin Funk 2025-04-30 10:36:18 +02:00 committed by Werner Koch
parent d90b290f97
commit 3c5a143945
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1 changed files with 1 additions and 1 deletions
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common/ksba-io-support.c
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@ -174,7 +174,7 @@ has_only_base64 (const unsigned char *line, int linelen)
{
if (*line == '\n' || (linelen > 1 && *line == '\r' && line[1] == '\n'))
break;
if ( !strchr (bintoasc, *line) )
if ( !memchr (bintoasc, *line, sizeof (bintoasc)) )
return 0;
}
return 1; /* yes */