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Correctly set the return length regardless of the relative size of the

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user's buffer.  Simplify the logic a bit.  (Can we have a version of
min() for size_t?)
This commit is contained in:
Garrett Wollman 1998-08-31 15:34:55 +00:00
parent cdb5ef5fba
commit d224dbc106
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=38699
1 changed files with 3 additions and 6 deletions
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9
sys/kern/uipc_socket.c
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@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)uipc_socket.c 8.3 (Berkeley) 4/15/94
* $Id: uipc_socket.c,v 1.42 1998/07/18 18:48:45 fenner Exp $
* $Id: uipc_socket.c,v 1.43 1998/08/23 03:06:59 wollman Exp $
*/
#include <sys/param.h>
@ -1083,11 +1083,8 @@ sooptcopyout(sopt, buf, len)
* interface is not idempotent; the entire answer must
* generated ahead of time.
*/
valsize = len;
if (sopt->sopt_valsize < valsize) {
valsize = sopt->sopt_valsize;
sopt->sopt_valsize = len;
}
valsize = min(len, sopt->sopt_valsize);
sopt->sopt_valsize = len;
if (sopt->sopt_val != 0) {
if (sopt->sopt_p != 0)
error = copyout(buf, sopt->sopt_val, valsize);