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Date:      Fri, 16 Dec 2016 12:13:00 -0800
From:      Conrad Meyer <cem@freebsd.org>
To:        Dimitry Andric <dim@freebsd.org>
Cc:        src-committers <src-committers@freebsd.org>, svn-src-all@freebsd.org,  svn-src-head@freebsd.org
Subject:   Re: svn commit: r310171 - head/sys/sys
Message-ID:  <CAG6CVpU3r-sCp_1CnxfdS%2BCrKgfxezcuZkYK_yPYAt7JWfPf8Q@mail.gmail.com>
In-Reply-To: <201612161949.uBGJnMol059217@repo.freebsd.org>
References:  <201612161949.uBGJnMol059217@repo.freebsd.org>

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Thanks!

On Fri, Dec 16, 2016 at 11:49 AM, Dimitry Andric <dim@freebsd.org> wrote:
> Author: dim
> Date: Fri Dec 16 19:49:22 2016
> New Revision: 310171
> URL: https://svnweb.freebsd.org/changeset/base/310171
>
> Log:
>   Add __scanflike attributes to the kernel's sscanf() and vsscanf()
>   declarations.  This should help to catch future mismatches between
>   format strings and arguments.
>
>   MFC after:    1 week
>
> Modified:
>   head/sys/sys/systm.h
>
> Modified: head/sys/sys/systm.h
> ==============================================================================
> --- head/sys/sys/systm.h        Fri Dec 16 19:09:57 2016        (r310170)
> +++ head/sys/sys/systm.h        Fri Dec 16 19:49:22 2016        (r310171)
> @@ -227,8 +227,8 @@ int vsnprintf(char *, size_t, const char
>  int    vsnrprintf(char *, size_t, int, const char *, __va_list) __printflike(4, 0);
>  int    vsprintf(char *buf, const char *, __va_list) __printflike(2, 0);
>  int    ttyprintf(struct tty *, const char *, ...) __printflike(2, 3);
> -int    sscanf(const char *, char const *, ...) __nonnull(1) __nonnull(2);
> -int    vsscanf(const char *, char const *, __va_list) __nonnull(1) __nonnull(2);
> +int    sscanf(const char *, char const *, ...) __nonnull(1) __nonnull(2) __scanflike(2, 3);
> +int    vsscanf(const char *, char const *, __va_list) __nonnull(1) __nonnull(2) __scanflike(2, 0);
>  long   strtol(const char *, char **, int) __nonnull(1);
>  u_long strtoul(const char *, char **, int) __nonnull(1);
>  quad_t strtoq(const char *, char **, int) __nonnull(1);
>



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