2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1986, 1988, 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 * (c) UNIX System Laboratories, Inc.
7 * All or some portions of this file are derived from material licensed
8 * to the University of California by American Telephone and Telegraph
9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
10 * the permission of UNIX System Laboratories, Inc.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * @(#)subr_prf.c 8.3 (Berkeley) 1/21/94
39 #include <sys/cdefs.h>
40 __FBSDID("$FreeBSD$");
44 #include "opt_printf.h"
47 #include <sys/param.h>
49 #include <sys/systm.h>
52 #include <sys/mutex.h>
54 #include <sys/kernel.h>
55 #include <sys/msgbuf.h>
56 #include <sys/malloc.h>
59 #include <sys/stddef.h>
60 #include <sys/sysctl.h>
62 #include <sys/syslog.h>
66 #include <sys/ctype.h>
74 * Note that stdarg.h and the ANSI style va_start macro is used for both
75 * ANSI and traditional C compilers.
78 #include <machine/stdarg.h>
84 * This is needed for sbuf_putbuf() when compiled into userland. Due to the
85 * shared nature of this file, it's the only place to put it.
97 /* Max number conversion buffer length: a u_quad_t in base 2, plus NUL byte. */
98 #define MAXNBUF (sizeof(intmax_t) * NBBY + 1)
110 struct snprintf_arg {
117 static void msglogchar(int c, int pri);
118 static void msglogstr(char *str, int pri, int filter_cr);
119 static void putchar(int ch, void *arg);
120 static char *ksprintn(char *nbuf, uintmax_t num, int base, int *len, int upper);
121 static void snprintf_func(int ch, void *arg);
123 static bool msgbufmapped; /* Set when safe to use msgbuf */
125 struct msgbuf *msgbufp;
128 #define BOOT_TAG_SZ 32
131 /* Tag used to mark the start of a boot in dmesg */
132 #define BOOT_TAG "---<<BOOT>>---"
135 static char current_boot_tag[BOOT_TAG_SZ + 1] = BOOT_TAG;
136 SYSCTL_STRING(_kern, OID_AUTO, boot_tag, CTLFLAG_RDTUN | CTLFLAG_NOFETCH,
137 current_boot_tag, 0, "Tag added to dmesg at start of boot");
139 static int log_console_output = 1;
140 SYSCTL_INT(_kern, OID_AUTO, log_console_output, CTLFLAG_RWTUN,
141 &log_console_output, 0, "Duplicate console output to the syslog");
144 * See the comment in log_console() below for more explanation of this.
146 static int log_console_add_linefeed;
147 SYSCTL_INT(_kern, OID_AUTO, log_console_add_linefeed, CTLFLAG_RWTUN,
148 &log_console_add_linefeed, 0, "log_console() adds extra newlines");
150 static int always_console_output;
151 SYSCTL_INT(_kern, OID_AUTO, always_console_output, CTLFLAG_RWTUN,
152 &always_console_output, 0, "Always output to console despite TIOCCONS");
155 * Warn that a system table is full.
158 tablefull(const char *tab)
161 log(LOG_ERR, "%s: table is full\n", tab);
165 * Uprintf prints to the controlling terminal for the current process.
168 uprintf(const char *fmt, ...)
171 struct putchar_arg pca;
177 if (TD_IS_IDLETHREAD(td))
180 sx_slock(&proctree_lock);
183 if ((p->p_flag & P_CONTROLT) == 0) {
185 sx_sunlock(&proctree_lock);
188 SESS_LOCK(p->p_session);
189 pca.tty = p->p_session->s_ttyp;
190 SESS_UNLOCK(p->p_session);
192 if (pca.tty == NULL) {
193 sx_sunlock(&proctree_lock);
200 sx_sunlock(&proctree_lock);
201 retval = kvprintf(fmt, putchar, &pca, 10, ap);
208 * tprintf and vtprintf print on the controlling terminal associated with the
209 * given session, possibly to the log as well.
212 tprintf(struct proc *p, int pri, const char *fmt, ...)
217 vtprintf(p, pri, fmt, ap);
222 vtprintf(struct proc *p, int pri, const char *fmt, va_list ap)
224 struct tty *tp = NULL;
226 struct putchar_arg pca;
227 struct session *sess = NULL;
229 sx_slock(&proctree_lock);
234 if (p->p_flag & P_CONTROLT && p->p_session->s_ttyvp) {
239 if (tp != NULL && tty_checkoutq(tp))
252 sx_sunlock(&proctree_lock);
253 kvprintf(fmt, putchar, &pca, 10, ap);
262 * Ttyprintf displays a message on a tty; it should be used only by
263 * the tty driver, or anything that knows the underlying tty will not
264 * be revoke(2)'d away. Other callers should use tprintf.
267 ttyprintf(struct tty *tp, const char *fmt, ...)
270 struct putchar_arg pca;
277 retval = kvprintf(fmt, putchar, &pca, 10, ap);
283 _vprintf(int level, int flags, const char *fmt, va_list ap)
285 struct putchar_arg pca;
287 #ifdef PRINTF_BUFR_SIZE
288 char bufr[PRINTF_BUFR_SIZE];
295 #ifdef PRINTF_BUFR_SIZE
297 pca.p_next = pca.p_bufr;
298 pca.n_bufr = sizeof(bufr);
299 pca.remain = sizeof(bufr);
302 /* Don't buffer console output. */
306 retval = kvprintf(fmt, putchar, &pca, 10, ap);
308 #ifdef PRINTF_BUFR_SIZE
309 /* Write any buffered console/log output: */
310 if (*pca.p_bufr != '\0') {
311 if (pca.flags & TOLOG)
312 msglogstr(pca.p_bufr, level, /*filter_cr*/1);
314 if (pca.flags & TOCONS)
324 * Log writes to the log buffer, and guarantees not to sleep (so can be
325 * called by interrupt routines). If there is no process reading the
326 * log yet, it writes to the console also.
329 log(int level, const char *fmt, ...)
334 vlog(level, fmt, ap);
339 vlog(int level, const char *fmt, va_list ap)
342 (void)_vprintf(level, log_open ? TOLOG : TOCONS | TOLOG, fmt, ap);
346 #define CONSCHUNK 128
349 log_console(struct uio *uio)
355 if (!log_console_output)
358 pri = LOG_INFO | LOG_CONSOLE;
360 consbuffer = malloc(CONSCHUNK, M_TEMP, M_WAITOK);
363 while (uio->uio_resid > 0) {
364 c = imin(uio->uio_resid, CONSCHUNK - 1);
365 error = uiomove(consbuffer, c, uio);
368 /* Make sure we're NUL-terminated */
369 consbuffer[c] = '\0';
370 if (consbuffer[c - 1] == '\n')
374 msglogstr(consbuffer, pri, /*filter_cr*/ 1);
377 * The previous behavior in log_console() is preserved when
378 * log_console_add_linefeed is non-zero. For that behavior, if an
379 * individual console write came in that was not terminated with a
380 * line feed, it would add a line feed.
382 * This results in different data in the message buffer than
383 * appears on the system console (which doesn't add extra line feed
386 * A number of programs and rc scripts write a line feed, or a period
387 * and a line feed when they have completed their operation. On
388 * the console, this looks seamless, but when displayed with
389 * 'dmesg -a', you wind up with output that looks like this:
394 * On the console, it looks like this:
397 * We could add logic to detect that situation, or just not insert
398 * the extra newlines. Set the kern.log_console_add_linefeed
399 * sysctl/tunable variable to get the old behavior.
401 if (!nl && log_console_add_linefeed) {
402 consbuffer[0] = '\n';
403 consbuffer[1] = '\0';
404 msglogstr(consbuffer, pri, /*filter_cr*/ 1);
408 free(consbuffer, M_TEMP);
412 printf(const char *fmt, ...)
418 retval = vprintf(fmt, ap);
425 vprintf(const char *fmt, va_list ap)
429 retval = _vprintf(-1, TOCONS | TOLOG, fmt, ap);
438 prf_putbuf(char *bufr, int flags, int pri)
442 msglogstr(bufr, pri, /*filter_cr*/1);
444 if (flags & TOCONS) {
445 if ((panicstr == NULL) && (constty != NULL))
446 msgbuf_addstr(&consmsgbuf, -1,
447 bufr, /*filter_cr*/ 0);
449 if ((constty == NULL) ||(always_console_output))
455 putbuf(int c, struct putchar_arg *ap)
457 /* Check if no console output buffer was provided. */
458 if (ap->p_bufr == NULL) {
459 /* Output direct to the console. */
460 if (ap->flags & TOCONS)
463 if (ap->flags & TOLOG)
464 msglogchar(c, ap->pri);
466 /* Buffer the character: */
470 /* Always leave the buffer zero terminated. */
473 /* Check if the buffer needs to be flushed. */
474 if (ap->remain == 2 || c == '\n') {
475 prf_putbuf(ap->p_bufr, ap->flags, ap->pri);
477 ap->p_next = ap->p_bufr;
478 ap->remain = ap->n_bufr;
483 * Since we fill the buffer up one character at a time,
484 * this should not happen. We should always catch it when
485 * ap->remain == 2 (if not sooner due to a newline), flush
486 * the buffer and move on. One way this could happen is
487 * if someone sets PRINTF_BUFR_SIZE to 1 or something
490 KASSERT(ap->remain > 2, ("Bad buffer logic, remain = %zd",
496 * Print a character on console or users terminal. If destination is
497 * the console then the last bunch of characters are saved in msgbuf for
501 putchar(int c, void *arg)
503 struct putchar_arg *ap = (struct putchar_arg*) arg;
504 struct tty *tp = ap->tty;
505 int flags = ap->flags;
507 /* Don't use the tty code after a panic or while in ddb. */
514 if ((flags & TOTTY) && tp != NULL && panicstr == NULL)
517 if ((flags & (TOCONS | TOLOG)) && c != '\0')
522 * Scaled down version of sprintf(3).
525 sprintf(char *buf, const char *cfmt, ...)
531 retval = kvprintf(cfmt, NULL, (void *)buf, 10, ap);
538 * Scaled down version of vsprintf(3).
541 vsprintf(char *buf, const char *cfmt, va_list ap)
545 retval = kvprintf(cfmt, NULL, (void *)buf, 10, ap);
551 * Scaled down version of snprintf(3).
554 snprintf(char *str, size_t size, const char *format, ...)
559 va_start(ap, format);
560 retval = vsnprintf(str, size, format, ap);
566 * Scaled down version of vsnprintf(3).
569 vsnprintf(char *str, size_t size, const char *format, va_list ap)
571 struct snprintf_arg info;
576 retval = kvprintf(format, snprintf_func, &info, 10, ap);
577 if (info.remain >= 1)
583 * Kernel version which takes radix argument vsnprintf(3).
586 vsnrprintf(char *str, size_t size, int radix, const char *format, va_list ap)
588 struct snprintf_arg info;
593 retval = kvprintf(format, snprintf_func, &info, radix, ap);
594 if (info.remain >= 1)
600 snprintf_func(int ch, void *arg)
602 struct snprintf_arg *const info = arg;
604 if (info->remain >= 2) {
611 * Put a NUL-terminated ASCII number (base <= 36) in a buffer in reverse
612 * order; return an optional length and a pointer to the last character
613 * written in the buffer (i.e., the first character of the string).
614 * The buffer pointed to by `nbuf' must have length >= MAXNBUF.
617 ksprintn(char *nbuf, uintmax_t num, int base, int *lenp, int upper)
624 c = hex2ascii(num % base);
625 *++p = upper ? toupper(c) : c;
626 } while (num /= base);
633 * Scaled down version of printf(3).
635 * Two additional formats:
637 * The format %b is supported to decode error registers.
640 * printf("reg=%b\n", regval, "<base><arg>*");
642 * where <base> is the output base expressed as a control character, e.g.
643 * \10 gives octal; \20 gives hex. Each arg is a sequence of characters,
644 * the first of which gives the bit number to be inspected (origin 1), and
645 * the next characters (up to a control character, i.e. a character <= 32),
646 * give the name of the register. Thus:
648 * kvprintf("reg=%b\n", 3, "\10\2BITTWO\1BITONE");
650 * would produce output:
652 * reg=3<BITTWO,BITONE>
654 * XXX: %D -- Hexdump, takes pointer and separator string:
655 * ("%6D", ptr, ":") -> XX:XX:XX:XX:XX:XX
656 * ("%*D", len, ptr, " " -> XX XX XX XX ...
659 kvprintf(char const *fmt, void (*func)(int, void*), void *arg, int radix, va_list ap)
661 #define PCHAR(c) {int cc=(c); if (func) (*func)(cc,arg); else *d++ = cc; retval++; }
664 const char *p, *percent, *q;
668 int base, lflag, qflag, tmp, width, ladjust, sharpflag, neg, sign, dot;
669 int cflag, hflag, jflag, tflag, zflag;
670 int bconv, dwidth, upper;
672 int stop = 0, retval = 0;
682 fmt = "(fmt null)\n";
684 if (radix < 2 || radix > 36)
690 while ((ch = (u_char)*fmt++) != '%' || stop) {
696 qflag = 0; lflag = 0; ladjust = 0; sharpflag = 0; neg = 0;
697 sign = 0; dot = 0; bconv = 0; dwidth = 0; upper = 0;
698 cflag = 0; hflag = 0; jflag = 0; tflag = 0; zflag = 0;
699 reswitch: switch (ch = (u_char)*fmt++) {
717 width = va_arg(ap, int);
723 dwidth = va_arg(ap, int);
732 case '1': case '2': case '3': case '4':
733 case '5': case '6': case '7': case '8': case '9':
734 for (n = 0;; ++fmt) {
735 n = n * 10 + ch - '0';
737 if (ch < '0' || ch > '9')
752 if (!ladjust && width > 0)
755 PCHAR(va_arg(ap, int));
756 if (ladjust && width > 0)
761 up = va_arg(ap, u_char *);
762 p = va_arg(ap, char *);
766 PCHAR(hex2ascii(*up >> 4));
767 PCHAR(hex2ascii(*up & 0x0f));
798 *(va_arg(ap, intmax_t *)) = retval;
800 *(va_arg(ap, quad_t *)) = retval;
802 *(va_arg(ap, long *)) = retval;
804 *(va_arg(ap, size_t *)) = retval;
806 *(va_arg(ap, short *)) = retval;
808 *(va_arg(ap, char *)) = retval;
810 *(va_arg(ap, int *)) = retval;
817 sharpflag = (width == 0);
819 num = (uintptr_t)va_arg(ap, void *);
830 p = va_arg(ap, char *);
836 for (n = 0; n < dwidth && p[n]; n++)
841 if (!ladjust && width > 0)
846 if (ladjust && width > 0)
871 num = va_arg(ap, uintmax_t);
873 num = va_arg(ap, u_quad_t);
875 num = va_arg(ap, ptrdiff_t);
877 num = va_arg(ap, u_long);
879 num = va_arg(ap, size_t);
881 num = (u_short)va_arg(ap, int);
883 num = (u_char)va_arg(ap, int);
885 num = va_arg(ap, u_int);
887 q = va_arg(ap, char *);
893 num = va_arg(ap, intmax_t);
895 num = va_arg(ap, quad_t);
897 num = va_arg(ap, ptrdiff_t);
899 num = va_arg(ap, long);
901 num = va_arg(ap, ssize_t);
903 num = (short)va_arg(ap, int);
905 num = (char)va_arg(ap, int);
907 num = va_arg(ap, int);
909 if (sign && (intmax_t)num < 0) {
911 num = -(intmax_t)num;
913 p = ksprintn(nbuf, num, base, &n, upper);
915 if (sharpflag && num != 0) {
924 if (!ladjust && padc == '0')
925 dwidth = width - tmp;
926 width -= tmp + imax(dwidth, n);
933 if (sharpflag && num != 0) {
936 } else if (base == 16) {
947 if (bconv && num != 0) {
948 /* %b conversion flag format. */
952 if (num & (1 << (n - 1))) {
953 PCHAR(retval != tmp ?
955 for (; (n = *q) > ' '; ++q)
958 for (; *q > ' '; ++q)
963 width -= retval - tmp;
973 while (percent < fmt)
976 * Since we ignore a formatting argument it is no
977 * longer safe to obey the remaining formatting
978 * arguments as the arguments will no longer match
989 * Put character in log buffer with a particular priority.
992 msglogchar(int c, int pri)
994 static int lastpri = -1;
1001 if (c == '\0' || c == '\r')
1003 if (pri != -1 && pri != lastpri) {
1005 msgbuf_addchar(msgbufp, '\n');
1008 msgbuf_addchar(msgbufp, '<');
1009 for (p = ksprintn(nbuf, (uintmax_t)pri, 10, NULL, 0); *p;)
1010 msgbuf_addchar(msgbufp, *p--);
1011 msgbuf_addchar(msgbufp, '>');
1014 msgbuf_addchar(msgbufp, c);
1024 msglogstr(char *str, int pri, int filter_cr)
1029 msgbuf_addstr(msgbufp, pri, str, filter_cr);
1033 msgbufinit(void *ptr, int size)
1036 static struct msgbuf *oldp = NULL;
1037 bool print_boot_tag;
1039 size -= sizeof(*msgbufp);
1041 print_boot_tag = !msgbufmapped;
1042 /* Attempt to fetch kern.boot_tag tunable on first mapping */
1044 TUNABLE_STR_FETCH("kern.boot_tag", current_boot_tag,
1045 sizeof(current_boot_tag));
1046 msgbufp = (struct msgbuf *)(cp + size);
1047 msgbuf_reinit(msgbufp, cp, size);
1048 if (msgbufmapped && oldp != msgbufp)
1049 msgbuf_copy(oldp, msgbufp);
1050 msgbufmapped = true;
1051 if (print_boot_tag && *current_boot_tag != '\0')
1052 printf("%s\n", current_boot_tag);
1056 /* Sysctls for accessing/clearing the msgbuf */
1058 sysctl_kern_msgbuf(SYSCTL_HANDLER_ARGS)
1064 error = priv_check(req->td, PRIV_MSGBUF);
1068 /* Read the whole buffer, one chunk at a time. */
1069 mtx_lock(&msgbuf_lock);
1070 msgbuf_peekbytes(msgbufp, NULL, 0, &seq);
1072 len = msgbuf_peekbytes(msgbufp, buf, sizeof(buf), &seq);
1073 mtx_unlock(&msgbuf_lock);
1075 return (SYSCTL_OUT(req, "", 1)); /* add nulterm */
1077 error = sysctl_handle_opaque(oidp, buf, len, req);
1081 mtx_lock(&msgbuf_lock);
1085 SYSCTL_PROC(_kern, OID_AUTO, msgbuf,
1086 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE,
1087 NULL, 0, sysctl_kern_msgbuf, "A", "Contents of kernel message buffer");
1089 static int msgbuf_clearflag;
1092 sysctl_kern_msgbuf_clear(SYSCTL_HANDLER_ARGS)
1095 error = sysctl_handle_int(oidp, oidp->oid_arg1, oidp->oid_arg2, req);
1096 if (!error && req->newptr) {
1097 mtx_lock(&msgbuf_lock);
1098 msgbuf_clear(msgbufp);
1099 mtx_unlock(&msgbuf_lock);
1100 msgbuf_clearflag = 0;
1105 SYSCTL_PROC(_kern, OID_AUTO, msgbuf_clear,
1106 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_SECURE | CTLFLAG_MPSAFE,
1107 &msgbuf_clearflag, 0, sysctl_kern_msgbuf_clear, "I",
1108 "Clear kernel message buffer");
1112 DB_SHOW_COMMAND(msgbuf, db_show_msgbuf)
1116 if (!msgbufmapped) {
1117 db_printf("msgbuf not mapped yet\n");
1120 db_printf("msgbufp = %p\n", msgbufp);
1121 db_printf("magic = %x, size = %d, r= %u, w = %u, ptr = %p, cksum= %u\n",
1122 msgbufp->msg_magic, msgbufp->msg_size, msgbufp->msg_rseq,
1123 msgbufp->msg_wseq, msgbufp->msg_ptr, msgbufp->msg_cksum);
1124 for (i = 0; i < msgbufp->msg_size && !db_pager_quit; i++) {
1125 j = MSGBUF_SEQ_TO_POS(msgbufp, i + msgbufp->msg_rseq);
1126 db_printf("%c", msgbufp->msg_ptr[j]);
1134 hexdump(const void *ptr, int length, const char *hdr, int flags)
1138 const unsigned char *cp;
1141 if ((flags & HD_DELIM_MASK) != 0)
1142 delim = (flags & HD_DELIM_MASK) >> 8;
1146 if ((flags & HD_COLUMN_MASK) != 0)
1147 cols = flags & HD_COLUMN_MASK;
1152 for (i = 0; i < length; i+= cols) {
1156 if ((flags & HD_OMIT_COUNT) == 0)
1159 if ((flags & HD_OMIT_HEX) == 0) {
1160 for (j = 0; j < cols; j++) {
1163 printf("%c%02x", delim, cp[k]);
1169 if ((flags & HD_OMIT_CHARS) == 0) {
1171 for (j = 0; j < cols; j++) {
1175 else if (cp[k] >= ' ' && cp[k] <= '~')
1176 printf("%c", cp[k]);
1185 #endif /* _KERNEL */
1188 sbuf_hexdump(struct sbuf *sb, const void *ptr, int length, const char *hdr,
1193 const unsigned char *cp;
1196 if ((flags & HD_DELIM_MASK) != 0)
1197 delim = (flags & HD_DELIM_MASK) >> 8;
1201 if ((flags & HD_COLUMN_MASK) != 0)
1202 cols = flags & HD_COLUMN_MASK;
1207 for (i = 0; i < length; i+= cols) {
1209 sbuf_printf(sb, "%s", hdr);
1211 if ((flags & HD_OMIT_COUNT) == 0)
1212 sbuf_printf(sb, "%04x ", i);
1214 if ((flags & HD_OMIT_HEX) == 0) {
1215 for (j = 0; j < cols; j++) {
1218 sbuf_printf(sb, "%c%02x", delim, cp[k]);
1220 sbuf_printf(sb, " ");
1224 if ((flags & HD_OMIT_CHARS) == 0) {
1225 sbuf_printf(sb, " |");
1226 for (j = 0; j < cols; j++) {
1229 sbuf_printf(sb, " ");
1230 else if (cp[k] >= ' ' && cp[k] <= '~')
1231 sbuf_printf(sb, "%c", cp[k]);
1233 sbuf_printf(sb, ".");
1235 sbuf_printf(sb, "|");
1237 sbuf_printf(sb, "\n");
1243 counted_warning(unsigned *counter, const char *msg)
1252 if (atomic_cmpset_int(counter, c, c - 1)) {
1254 log(LOG_INFO, "pid %d (%s) %s%s\n",
1255 td->td_proc->p_pid, td->td_name, msg,
1256 c > 1 ? "" : " - not logging anymore");
1265 sbuf_putbuf(struct sbuf *sb)
1268 prf_putbuf(sbuf_data(sb), TOLOG | TOCONS, -1);
1272 sbuf_putbuf(struct sbuf *sb)
1275 printf("%s", sbuf_data(sb));