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procfs_getcpuinfstr's len argument contains the buffer size on entry,

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and the number of bytes used on return.  Use the actual buffer size in a
snprintf call, instead of sizeof(*buf), which is always 1.
This commit is contained in:
apb 2014-03-29 11:34:13 +00:00
parent 3cebbec2c7
commit 7b4ce92677
1 changed files with 4 additions and 5 deletions
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9
sys/arch/m68k/m68k/procfs_machdep.c
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@ -1,7 +1,7 @@
/* $NetBSD: procfs_machdep.c,v 1.5 2006/07/22 06:58:17 tsutsui Exp $ */
/* $NetBSD: procfs_machdep.c,v 1.6 2014/03/29 11:34:13 apb Exp $ */
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: procfs_machdep.c,v 1.5 2006/07/22 06:58:17 tsutsui Exp $");
__KERNEL_RCSID(0, "$NetBSD: procfs_machdep.c,v 1.6 2014/03/29 11:34:13 apb Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -19,8 +19,7 @@ int
procfs_getcpuinfstr(char *buf, int *len)
{
const char *cpu, *mmu, *fpu;
*len = 0;
int maxlen = *len;
switch (cputype) {
case CPU_68020:
@ -79,7 +78,7 @@ procfs_getcpuinfstr(char *buf, int *len)
break;
}
*len = snprintf(buf, sizeof(buf),
*len = snprintf(buf, maxlen,
/* as seen in Linux 2.4.27 */
"CPU:\t\t%s\n"
"MMU:\t\t%s\n"