Author: hselasky
Date: Sat Jun 28 03:59:04 2014
New Revision: 267993
URL: http://svnweb.freebsd.org/changeset/base/267993
Log:
Fix regression issue after r267961. Handle special string case for
SYSCTLs like previously.
MFC after: 2 weeks
Reported by: several people
Modified:
head/sys/kern/kern_sysctl.c
Modified: head/sys/kern/kern_sysctl.c
==============================================================================
--- head/sys/kern/kern_sysctl.c Sat Jun 28 03:56:17 2014 (r267992)
+++ head/sys/kern/kern_sysctl.c Sat Jun 28 03:59:04 2014 (r267993)
@@ -1210,9 +1210,12 @@ sysctl_handle_string(SYSCTL_HANDLER_ARGS
size_t outlen;
int error = 0;
- /* check for zero-length buffer */
+ /*
+ * A zero-length buffer indicates a fixed size read-only
+ * string:
+ */
if (arg2 == 0)
- return (ENOMEM);
+ arg2 = strlen((char *)arg1) + 1;
if (req->oldptr != NULL) {
char *tmparg;
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