diff options
Diffstat (limited to 'sys/kern/subr_prf.c')
| -rw-r--r-- | sys/kern/subr_prf.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/sys/kern/subr_prf.c b/sys/kern/subr_prf.c index 2adb779..8a9a44e 100644 --- a/sys/kern/subr_prf.c +++ b/sys/kern/subr_prf.c @@ -35,7 +35,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * @(#)subr_prf.c 8.3 (Berkeley) 1/21/94 + * @(#)subr_prf.c 8.4 (Berkeley) 5/4/95 */ #include <sys/param.h> @@ -499,6 +499,11 @@ putchar(c, flags, tp) mbp->msg_bufc[mbp->msg_bufx++] = c; if (mbp->msg_bufx < 0 || mbp->msg_bufx >= MSG_BSIZE) mbp->msg_bufx = 0; + /* If the buffer is full, keep the most recent data. */ + if (mbp->msg_bufr == mbp->msg_bufx) { + if (++mbp->msg_bufr >= MSG_BSIZE) + mbp->msg_bufr = 0; + } } if ((flags & TOCONS) && constty == NULL && c != '\0') (*v_putc)(c); |
