Date: Tue, 17 Mar 2015 20:56:24 +0000 (UTC) From: Ian Lepore <ian@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r280192 - head/sys/kern Message-ID: <201503172056.t2HKuPBq008415@svn.freebsd.org>
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Author: ian Date: Tue Mar 17 20:56:24 2015 New Revision: 280192 URL: https://svnweb.freebsd.org/changeset/base/280192 Log: In sbuf_new_for_sysctl(), default the buffer size to 64 bytes if the passed-in pointer is NULL and the length is zero. Modified: head/sys/kern/kern_sysctl.c Modified: head/sys/kern/kern_sysctl.c ============================================================================== --- head/sys/kern/kern_sysctl.c Tue Mar 17 20:15:49 2015 (r280191) +++ head/sys/kern/kern_sysctl.c Tue Mar 17 20:56:24 2015 (r280192) @@ -1807,6 +1807,9 @@ sbuf_new_for_sysctl(struct sbuf *s, char struct sysctl_req *req) { + /* Supply a default buffer size if none given. */ + if (buf == NULL && length == 0) + length = 64; s = sbuf_new(s, buf, length, SBUF_FIXEDLEN | SBUF_INCLUDENUL); sbuf_set_drain(s, sbuf_sysctl_drain, req); return (s);
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