Hal Murray via devel <devel@ntpsec.org>:
>
> NetBSD just released version 9.0. It now generates this warning:
>
> ../../ntpd/ntp_control.c:1476:34: warning: '%s' directive output may be
> truncated writing up to 255 bytes into a region of size between 0 and 255
> [-Wformat-truncation=]
>
> char str[256];
>
> snprintf(str, sizeof(str), "%s/%s", utsnamebuf.sysname,
> utsnamebuf.release);
>
> Has anybody seen this before and/or know how to fix it?
I've seen it before. Rarely.
If your format string had only a single %s in it, you could fix it by
adding a precision specifier to the string (not a length specifier, a
*precision* specifier) which bounds the amount of bytes theb snprinf
can write into the buffer.
I guess you could give both %s-cookies a precision specifier of 128.
--
<a href="http://www.catb.org/~esr/";>Eric S. Raymond</a>
_______________________________________________
devel mailing list
devel@ntpsec.org
http://lists.ntpsec.org/mailman/listinfo/devel
