Date: Fri, 01 Dec 2000 13:55:05 +1100 From: Peter Jeremy <peter.jeremy@alcatel.com.au> To: Kris Kennaway <kris@FreeBSD.ORG> Cc: audit@FreeBSD.ORG Subject: Re: gcc __attributes for format strings Message-ID: <20001201135505.I1474@gsmx07.alcatel.com.au> In-Reply-To: <20001126222048.A46809@citusc17.usc.edu>; from kris@FreeBSD.ORG on Sun, Nov 26, 2000 at 10:20:48PM -0800 References: <20001126222048.A46809@citusc17.usc.edu>
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On 2000-Nov-26 22:20:48 -0800, Kris Kennaway <kris@FreeBSD.ORG> wrote: >+static void msgDebug(char *, ...) __printf0like(1,0); Should be +static void msgDebug(char *, ...) __printf0like(1,2); `2' indicates that the first format argument is argument 2. `0' indicates that the format arguments are passed as a va_list, eg int fprintf(FILE *, const char *, ...) __printflike(2,3); int vfprintf(FILE *, const char *, va_list) __printflike(2,0); Note that (at least with older gcc's), the attribute only works on the function declaration (prototype), not on the definition. I think doing this throughout the source would be an excellent idea (but fairly time-consuming). Peter To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-audit" in the body of the message
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