| subr_log.c (8876) | subr_log.c (9979) |
|---|---|
| 1/* 2 * Copyright (c) 1982, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 17 unchanged lines hidden (view full) --- 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)subr_log.c 8.1 (Berkeley) 6/10/93 | 1/* 2 * Copyright (c) 1982, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 17 unchanged lines hidden (view full) --- 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)subr_log.c 8.1 (Berkeley) 6/10/93 |
| 34 * $Id: subr_log.c,v 1.7 1995/04/29 11:36:47 jkh Exp $ | 34 * $Id: subr_log.c,v 1.8 1995/05/30 08:05:52 rgrimes Exp $ |
| 35 */ 36 37/* 38 * Error log buffer for kernel printf's. 39 */ 40 41#include <sys/param.h> 42#include <sys/systm.h> --- 25 unchanged lines hidden (view full) --- 68 struct proc *p; 69{ 70 register struct msgbuf *mbp = msgbufp; 71 72 if (log_open) 73 return (EBUSY); 74 log_open = 1; 75 logsoftc.sc_pgid = p->p_pid; /* signal process only */ | 35 */ 36 37/* 38 * Error log buffer for kernel printf's. 39 */ 40 41#include <sys/param.h> 42#include <sys/systm.h> --- 25 unchanged lines hidden (view full) --- 68 struct proc *p; 69{ 70 register struct msgbuf *mbp = msgbufp; 71 72 if (log_open) 73 return (EBUSY); 74 log_open = 1; 75 logsoftc.sc_pgid = p->p_pid; /* signal process only */ |
| 76 /* 77 * Potential race here with putchar() but since putchar should be 78 * called by autoconf, msg_magic should be initialized by the time 79 * we get here. 80 */ 81 if (mbp->msg_magic != MSG_MAGIC) { 82 register int i; 83 84 mbp->msg_magic = MSG_MAGIC; 85 mbp->msg_bufx = mbp->msg_bufr = 0; 86 for (i=0; i < MSG_BSIZE; i++) 87 mbp->msg_bufc[i] = 0; 88 } | |
| 89 return (0); 90} 91 92/*ARGSUSED*/ 93int 94logclose(dev, flag, mode, p) 95 dev_t dev; 96 int flag, mode; --- 40 unchanged lines hidden (view full) --- 137 l = min(l, uio->uio_resid); 138 if (l == 0) 139 break; 140 error = uiomove((caddr_t)&mbp->msg_bufc[mbp->msg_bufr], 141 (int)l, uio); 142 if (error) 143 break; 144 mbp->msg_bufr += l; | 76 return (0); 77} 78 79/*ARGSUSED*/ 80int 81logclose(dev, flag, mode, p) 82 dev_t dev; 83 int flag, mode; --- 40 unchanged lines hidden (view full) --- 124 l = min(l, uio->uio_resid); 125 if (l == 0) 126 break; 127 error = uiomove((caddr_t)&mbp->msg_bufc[mbp->msg_bufr], 128 (int)l, uio); 129 if (error) 130 break; 131 mbp->msg_bufr += l; |
| 145 if (mbp->msg_bufr < 0 || mbp->msg_bufr >= MSG_BSIZE) | 132 if (mbp->msg_bufr >= MSG_BSIZE) |
| 146 mbp->msg_bufr = 0; 147 } 148 return (error); 149} 150 151/*ARGSUSED*/ 152int 153logselect(dev, rw, p) --- 87 unchanged lines hidden --- | 133 mbp->msg_bufr = 0; 134 } 135 return (error); 136} 137 138/*ARGSUSED*/ 139int 140logselect(dev, rw, p) --- 87 unchanged lines hidden --- |