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Date:      Mon, 19 Dec 2016 00:39:54 -0800
From:      Ravi Pokala <rpokala@mac.com>
To:        Sepherosa Ziehau <sepherosa@gmail.com>, Dimitry Andric <dim@freebsd.org>
Cc:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   Re: svn commit: r310171 - head/sys/sys
Message-ID:  <9BD5034F-55A6-48F6-A391-A0877FF49702@panasas.com>
In-Reply-To: <CAMOc5cw8cBUN5UZjcRJ-vM5WE0vmD2AGDZ-raKTraFz7LBR2hg@mail.gmail.com>
References:  <201612161949.uBGJnMol059217@repo.freebsd.org> <CAMOc5cw8cBUN5UZjcRJ-vM5WE0vmD2AGDZ-raKTraFz7LBR2hg@mail.gmail.com>

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-----Original Message-----
> From: <owner-src-committers@freebsd.org> on behalf of Sepherosa Ziehau <sepherosa@gmail.com>
> Date: 2016-12-18, Sunday at 23:02
> To: Dimitry Andric <dim@freebsd.org>
> Cc: <src-committers@freebsd.org>, <svn-src-all@freebsd.org>, <svn-src-head@freebsd.org>
> Subject: Re: svn commit: r310171 - head/sys/sys
> 
> The following patch unbreaks the LINT builds on amd64 for me after this commit:
> https://people.freebsd.org/~sephe/geom_sscanf.diff

Wouldn't it be better to use the SCN macros?

-Ravi (rpokala@)

> Please review it.
> 
> Thanks,
> sephe
> 
> 
> On Sat, Dec 17, 2016 at 3:49 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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> 
> -- 
> Tomorrow Will Never Die






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