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>
42 #include "opt_printf.h"
45 #include <sys/param.h>
47 #include <sys/systm.h>
50 #include <sys/mutex.h>
52 #include <sys/kernel.h>
53 #include <sys/msgbuf.h>
54 #include <sys/malloc.h>
57 #include <sys/stddef.h>
58 #include <sys/sysctl.h>
60 #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 prf_putbuf(char *bufr, int flags, int pri);
120 static void putchar(int ch, void *arg);
121 static char *ksprintn(char *nbuf, uintmax_t num, int base, int *len, int upper);
122 static void snprintf_func(int ch, void *arg);
124 static bool msgbufmapped; /* Set when safe to use msgbuf */
126 struct msgbuf *msgbufp;
129 #define BOOT_TAG_SZ 32
132 /* Tag used to mark the start of a boot in dmesg */
133 #define BOOT_TAG "---<<BOOT>>---"
136 static char current_boot_tag[BOOT_TAG_SZ + 1] = BOOT_TAG;
137 SYSCTL_STRING(_kern, OID_AUTO, boot_tag, CTLFLAG_RDTUN | CTLFLAG_NOFETCH,
138 current_boot_tag, 0, "Tag added to dmesg at start of boot");
140 static int log_console_output = 1;
141 SYSCTL_INT(_kern, OID_AUTO, log_console_output, CTLFLAG_RWTUN,
142 &log_console_output, 0, "Duplicate console output to the syslog");
145 * See the comment in log_console() below for more explanation of this.
147 static int log_console_add_linefeed;
148 SYSCTL_INT(_kern, OID_AUTO, log_console_add_linefeed, CTLFLAG_RWTUN,
149 &log_console_add_linefeed, 0, "log_console() adds extra newlines");
151 static int always_console_output;
152 SYSCTL_INT(_kern, OID_AUTO, always_console_output, CTLFLAG_RWTUN,
153 &always_console_output, 0, "Always output to console despite TIOCCONS");
156 * Warn that a system table is full.
159 tablefull(const char *tab)
162 log(LOG_ERR, "%s: table is full\n", tab);
166 * Uprintf prints to the controlling terminal for the current process.
169 uprintf(const char *fmt, ...)
172 struct putchar_arg pca;
178 if (TD_IS_IDLETHREAD(td))
181 if (td->td_proc == initproc) {
182 /* Produce output when we fail to load /sbin/init: */
184 retval = vprintf(fmt, ap);
189 sx_slock(&proctree_lock);
192 if ((p->p_flag & P_CONTROLT) == 0) {
194 sx_sunlock(&proctree_lock);
197 SESS_LOCK(p->p_session);
198 pca.tty = p->p_session->s_ttyp;
199 SESS_UNLOCK(p->p_session);
201 if (pca.tty == NULL) {
202 sx_sunlock(&proctree_lock);
209 sx_sunlock(&proctree_lock);
210 retval = kvprintf(fmt, putchar, &pca, 10, ap);
217 * tprintf and vtprintf print on the controlling terminal associated with the
218 * given session, possibly to the log as well.
221 tprintf(struct proc *p, int pri, const char *fmt, ...)
226 vtprintf(p, pri, fmt, ap);
231 vtprintf(struct proc *p, int pri, const char *fmt, va_list ap)
233 struct tty *tp = NULL;
235 struct putchar_arg pca;
236 struct session *sess = NULL;
238 sx_slock(&proctree_lock);
243 if (p->p_flag & P_CONTROLT && p->p_session->s_ttyvp) {
248 if (tp != NULL && tty_checkoutq(tp))
261 sx_sunlock(&proctree_lock);
262 kvprintf(fmt, putchar, &pca, 10, ap);
271 _vprintf(int level, int flags, const char *fmt, va_list ap)
273 struct putchar_arg pca;
275 #ifdef PRINTF_BUFR_SIZE
276 char bufr[PRINTF_BUFR_SIZE];
283 #ifdef PRINTF_BUFR_SIZE
285 pca.p_next = pca.p_bufr;
286 pca.n_bufr = sizeof(bufr);
287 pca.remain = sizeof(bufr);
290 /* Don't buffer console output. */
294 retval = kvprintf(fmt, putchar, &pca, 10, ap);
296 #ifdef PRINTF_BUFR_SIZE
297 /* Write any buffered console/log output: */
298 if (*pca.p_bufr != '\0')
299 prf_putbuf(pca.p_bufr, flags, level);
307 * Log writes to the log buffer, and guarantees not to sleep (so can be
308 * called by interrupt routines). If there is no process reading the
309 * log yet, it writes to the console also.
312 log(int level, const char *fmt, ...)
317 vlog(level, fmt, ap);
322 vlog(int level, const char *fmt, va_list ap)
325 (void)_vprintf(level, log_open ? TOLOG : TOCONS | TOLOG, fmt, ap);
329 #define CONSCHUNK 128
332 log_console(struct uio *uio)
338 if (!log_console_output)
341 pri = LOG_INFO | LOG_CONSOLE;
343 consbuffer = malloc(CONSCHUNK, M_TEMP, M_WAITOK);
346 while (uio->uio_resid > 0) {
347 c = imin(uio->uio_resid, CONSCHUNK - 1);
348 error = uiomove(consbuffer, c, uio);
351 /* Make sure we're NUL-terminated */
352 consbuffer[c] = '\0';
353 if (consbuffer[c - 1] == '\n')
357 msglogstr(consbuffer, pri, /*filter_cr*/ 1);
360 * The previous behavior in log_console() is preserved when
361 * log_console_add_linefeed is non-zero. For that behavior, if an
362 * individual console write came in that was not terminated with a
363 * line feed, it would add a line feed.
365 * This results in different data in the message buffer than
366 * appears on the system console (which doesn't add extra line feed
369 * A number of programs and rc scripts write a line feed, or a period
370 * and a line feed when they have completed their operation. On
371 * the console, this looks seamless, but when displayed with
372 * 'dmesg -a', you wind up with output that looks like this:
377 * On the console, it looks like this:
380 * We could add logic to detect that situation, or just not insert
381 * the extra newlines. Set the kern.log_console_add_linefeed
382 * sysctl/tunable variable to get the old behavior.
384 if (!nl && log_console_add_linefeed) {
385 consbuffer[0] = '\n';
386 consbuffer[1] = '\0';
387 msglogstr(consbuffer, pri, /*filter_cr*/ 1);
391 free(consbuffer, M_TEMP);
395 printf(const char *fmt, ...)
401 retval = vprintf(fmt, ap);
408 vprintf(const char *fmt, va_list ap)
412 retval = _vprintf(-1, TOCONS | TOLOG, fmt, ap);
414 if (!KERNEL_PANICKED())
421 prf_putchar(int c, int flags, int pri)
427 if (flags & TOCONS) {
428 if ((!KERNEL_PANICKED()) && (constty != NULL))
429 msgbuf_addchar(&consmsgbuf, c);
431 if ((constty == NULL) || always_console_output)
437 prf_putbuf(char *bufr, int flags, int pri)
441 msglogstr(bufr, pri, /*filter_cr*/1);
443 if (flags & TOCONS) {
444 if ((!KERNEL_PANICKED()) && (constty != NULL))
445 msgbuf_addstr(&consmsgbuf, -1,
446 bufr, /*filter_cr*/ 0);
448 if ((constty == NULL) || always_console_output)
454 putbuf(int c, struct putchar_arg *ap)
456 /* Check if no console output buffer was provided. */
457 if (ap->p_bufr == NULL) {
458 prf_putchar(c, ap->flags, ap->pri);
460 /* Buffer the character: */
464 /* Always leave the buffer zero terminated. */
467 /* Check if the buffer needs to be flushed. */
468 if (ap->remain == 2 || c == '\n') {
469 prf_putbuf(ap->p_bufr, ap->flags, ap->pri);
471 ap->p_next = ap->p_bufr;
472 ap->remain = ap->n_bufr;
477 * Since we fill the buffer up one character at a time,
478 * this should not happen. We should always catch it when
479 * ap->remain == 2 (if not sooner due to a newline), flush
480 * the buffer and move on. One way this could happen is
481 * if someone sets PRINTF_BUFR_SIZE to 1 or something
484 KASSERT(ap->remain > 2, ("Bad buffer logic, remain = %zd",
490 * Print a character on console or users terminal. If destination is
491 * the console then the last bunch of characters are saved in msgbuf for
495 putchar(int c, void *arg)
497 struct putchar_arg *ap = (struct putchar_arg*) arg;
498 struct tty *tp = ap->tty;
499 int flags = ap->flags;
501 /* Don't use the tty code after a panic or while in ddb. */
508 if ((flags & TOTTY) && tp != NULL && !KERNEL_PANICKED())
511 if ((flags & (TOCONS | TOLOG)) && c != '\0')
516 * Scaled down version of sprintf(3).
519 sprintf(char *buf, const char *cfmt, ...)
525 retval = kvprintf(cfmt, NULL, (void *)buf, 10, ap);
532 * Scaled down version of vsprintf(3).
535 vsprintf(char *buf, const char *cfmt, va_list ap)
539 retval = kvprintf(cfmt, NULL, (void *)buf, 10, ap);
545 * Scaled down version of snprintf(3).
548 snprintf(char *str, size_t size, const char *format, ...)
553 va_start(ap, format);
554 retval = vsnprintf(str, size, format, ap);
560 * Scaled down version of vsnprintf(3).
563 vsnprintf(char *str, size_t size, const char *format, va_list ap)
565 struct snprintf_arg info;
570 retval = kvprintf(format, snprintf_func, &info, 10, ap);
571 if (info.remain >= 1)
577 * Kernel version which takes radix argument vsnprintf(3).
580 vsnrprintf(char *str, size_t size, int radix, const char *format, va_list ap)
582 struct snprintf_arg info;
587 retval = kvprintf(format, snprintf_func, &info, radix, ap);
588 if (info.remain >= 1)
594 snprintf_func(int ch, void *arg)
596 struct snprintf_arg *const info = arg;
598 if (info->remain >= 2) {
605 * Put a NUL-terminated ASCII number (base <= 36) in a buffer in reverse
606 * order; return an optional length and a pointer to the last character
607 * written in the buffer (i.e., the first character of the string).
608 * The buffer pointed to by `nbuf' must have length >= MAXNBUF.
611 ksprintn(char *nbuf, uintmax_t num, int base, int *lenp, int upper)
618 c = hex2ascii(num % base);
619 *++p = upper ? toupper(c) : c;
620 } while (num /= base);
627 * Scaled down version of printf(3).
629 * Two additional formats:
631 * The format %b is supported to decode error registers.
634 * printf("reg=%b\n", regval, "<base><arg>*");
636 * where <base> is the output base expressed as a control character, e.g.
637 * \10 gives octal; \20 gives hex. Each arg is a sequence of characters,
638 * the first of which gives the bit number to be inspected (origin 1), and
639 * the next characters (up to a control character, i.e. a character <= 32),
640 * give the name of the register. Thus:
642 * kvprintf("reg=%b\n", 3, "\10\2BITTWO\1BITONE");
644 * would produce output:
646 * reg=3<BITTWO,BITONE>
648 * XXX: %D -- Hexdump, takes pointer and separator string:
649 * ("%6D", ptr, ":") -> XX:XX:XX:XX:XX:XX
650 * ("%*D", len, ptr, " " -> XX XX XX XX ...
653 kvprintf(char const *fmt, void (*func)(int, void*), void *arg, int radix, va_list ap)
655 #define PCHAR(c) {int cc=(c); if (func) (*func)(cc,arg); else *d++ = cc; retval++; }
658 const char *p, *percent, *q;
662 int base, lflag, qflag, tmp, width, ladjust, sharpflag, neg, sign, dot;
663 int cflag, hflag, jflag, tflag, zflag;
664 int bconv, dwidth, upper;
666 int stop = 0, retval = 0;
676 fmt = "(fmt null)\n";
678 if (radix < 2 || radix > 36)
684 while ((ch = (u_char)*fmt++) != '%' || stop) {
690 qflag = 0; lflag = 0; ladjust = 0; sharpflag = 0; neg = 0;
691 sign = 0; dot = 0; bconv = 0; dwidth = 0; upper = 0;
692 cflag = 0; hflag = 0; jflag = 0; tflag = 0; zflag = 0;
693 reswitch: switch (ch = (u_char)*fmt++) {
711 width = va_arg(ap, int);
717 dwidth = va_arg(ap, int);
726 case '1': case '2': case '3': case '4':
727 case '5': case '6': case '7': case '8': case '9':
728 for (n = 0;; ++fmt) {
729 n = n * 10 + ch - '0';
731 if (ch < '0' || ch > '9')
746 if (!ladjust && width > 0)
749 PCHAR(va_arg(ap, int));
750 if (ladjust && width > 0)
755 up = va_arg(ap, u_char *);
756 p = va_arg(ap, char *);
760 PCHAR(hex2ascii(*up >> 4));
761 PCHAR(hex2ascii(*up & 0x0f));
792 * We do not support %n in kernel, but consume the
796 (void)va_arg(ap, intmax_t *);
798 (void)va_arg(ap, quad_t *);
800 (void)va_arg(ap, long *);
802 (void)va_arg(ap, size_t *);
804 (void)va_arg(ap, short *);
806 (void)va_arg(ap, char *);
808 (void)va_arg(ap, int *);
815 sharpflag = (width == 0);
817 num = (uintptr_t)va_arg(ap, void *);
828 p = va_arg(ap, char *);
834 for (n = 0; n < dwidth && p[n]; n++)
839 if (!ladjust && width > 0)
844 if (ladjust && width > 0)
870 num = va_arg(ap, uintmax_t);
872 num = va_arg(ap, u_quad_t);
874 num = va_arg(ap, ptrdiff_t);
876 num = va_arg(ap, u_long);
878 num = va_arg(ap, size_t);
880 num = (u_short)va_arg(ap, int);
882 num = (u_char)va_arg(ap, int);
884 num = va_arg(ap, u_int);
886 q = va_arg(ap, char *);
892 num = va_arg(ap, intmax_t);
894 num = va_arg(ap, quad_t);
896 num = va_arg(ap, ptrdiff_t);
898 num = va_arg(ap, long);
900 num = va_arg(ap, ssize_t);
902 num = (short)va_arg(ap, int);
904 num = (char)va_arg(ap, int);
906 num = va_arg(ap, int);
908 if (sign && (intmax_t)num < 0) {
910 num = -(intmax_t)num;
912 p = ksprintn(nbuf, num, base, &n, upper);
914 if (sharpflag && num != 0) {
923 if (!ladjust && padc == '0')
924 dwidth = width - tmp;
925 width -= tmp + imax(dwidth, n);
932 if (sharpflag && num != 0) {
935 } else if (base == 16) {
946 if (bconv && num != 0) {
947 /* %b conversion flag format. */
951 if (num & (1 << (n - 1))) {
952 PCHAR(retval != tmp ?
954 for (; (n = *q) > ' '; ++q)
957 for (; *q > ' '; ++q)
962 width -= retval - tmp;
972 while (percent < fmt)
975 * Since we ignore a formatting argument it is no
976 * longer safe to obey the remaining formatting
977 * arguments as the arguments will no longer match
988 * Put character in log buffer with a particular priority.
991 msglogchar(int c, int pri)
993 static int lastpri = -1;
1000 if (c == '\0' || c == '\r')
1002 if (pri != -1 && pri != lastpri) {
1004 msgbuf_addchar(msgbufp, '\n');
1007 msgbuf_addchar(msgbufp, '<');
1008 for (p = ksprintn(nbuf, (uintmax_t)pri, 10, NULL, 0); *p;)
1009 msgbuf_addchar(msgbufp, *p--);
1010 msgbuf_addchar(msgbufp, '>');
1013 msgbuf_addchar(msgbufp, c);
1023 msglogstr(char *str, int pri, int filter_cr)
1028 msgbuf_addstr(msgbufp, pri, str, filter_cr);
1032 msgbufinit(void *ptr, int size)
1035 static struct msgbuf *oldp = NULL;
1036 bool print_boot_tag;
1038 size -= sizeof(*msgbufp);
1040 print_boot_tag = !msgbufmapped;
1041 /* Attempt to fetch kern.boot_tag tunable on first mapping */
1043 TUNABLE_STR_FETCH("kern.boot_tag", current_boot_tag,
1044 sizeof(current_boot_tag));
1045 msgbufp = (struct msgbuf *)(cp + size);
1046 msgbuf_reinit(msgbufp, cp, size);
1047 if (msgbufmapped && oldp != msgbufp)
1048 msgbuf_copy(oldp, msgbufp);
1049 msgbufmapped = true;
1050 if (print_boot_tag && *current_boot_tag != '\0')
1051 printf("%s\n", current_boot_tag);
1055 /* Sysctls for accessing/clearing the msgbuf */
1057 sysctl_kern_msgbuf(SYSCTL_HANDLER_ARGS)
1063 error = priv_check(req->td, PRIV_MSGBUF);
1067 /* Read the whole buffer, one chunk at a time. */
1068 mtx_lock(&msgbuf_lock);
1069 msgbuf_peekbytes(msgbufp, NULL, 0, &seq);
1071 len = msgbuf_peekbytes(msgbufp, buf, sizeof(buf), &seq);
1072 mtx_unlock(&msgbuf_lock);
1074 return (SYSCTL_OUT(req, "", 1)); /* add nulterm */
1076 error = sysctl_handle_opaque(oidp, buf, len, req);
1080 mtx_lock(&msgbuf_lock);
1084 SYSCTL_PROC(_kern, OID_AUTO, msgbuf,
1085 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE,
1086 NULL, 0, sysctl_kern_msgbuf, "A", "Contents of kernel message buffer");
1088 static int msgbuf_clearflag;
1091 sysctl_kern_msgbuf_clear(SYSCTL_HANDLER_ARGS)
1094 error = sysctl_handle_int(oidp, oidp->oid_arg1, oidp->oid_arg2, req);
1095 if (!error && req->newptr) {
1096 mtx_lock(&msgbuf_lock);
1097 msgbuf_clear(msgbufp);
1098 mtx_unlock(&msgbuf_lock);
1099 msgbuf_clearflag = 0;
1104 SYSCTL_PROC(_kern, OID_AUTO, msgbuf_clear,
1105 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_SECURE | CTLFLAG_MPSAFE,
1106 &msgbuf_clearflag, 0, sysctl_kern_msgbuf_clear, "I",
1107 "Clear kernel message buffer");
1111 DB_SHOW_COMMAND(msgbuf, db_show_msgbuf)
1115 if (!msgbufmapped) {
1116 db_printf("msgbuf not mapped yet\n");
1119 db_printf("msgbufp = %p\n", msgbufp);
1120 db_printf("magic = %x, size = %d, r= %u, w = %u, ptr = %p, cksum= %u\n",
1121 msgbufp->msg_magic, msgbufp->msg_size, msgbufp->msg_rseq,
1122 msgbufp->msg_wseq, msgbufp->msg_ptr, msgbufp->msg_cksum);
1123 for (i = 0; i < msgbufp->msg_size && !db_pager_quit; i++) {
1124 j = MSGBUF_SEQ_TO_POS(msgbufp, i + msgbufp->msg_rseq);
1125 db_printf("%c", msgbufp->msg_ptr[j]);
1133 hexdump(const void *ptr, int length, const char *hdr, int flags)
1137 const unsigned char *cp;
1140 if ((flags & HD_DELIM_MASK) != 0)
1141 delim = (flags & HD_DELIM_MASK) >> 8;
1145 if ((flags & HD_COLUMN_MASK) != 0)
1146 cols = flags & HD_COLUMN_MASK;
1151 for (i = 0; i < length; i+= cols) {
1155 if ((flags & HD_OMIT_COUNT) == 0)
1158 if ((flags & HD_OMIT_HEX) == 0) {
1159 for (j = 0; j < cols; j++) {
1162 printf("%c%02x", delim, cp[k]);
1168 if ((flags & HD_OMIT_CHARS) == 0) {
1170 for (j = 0; j < cols; j++) {
1174 else if (cp[k] >= ' ' && cp[k] <= '~')
1175 printf("%c", cp[k]);
1184 #endif /* _KERNEL */
1187 sbuf_hexdump(struct sbuf *sb, const void *ptr, int length, const char *hdr,
1192 const unsigned char *cp;
1195 if ((flags & HD_DELIM_MASK) != 0)
1196 delim = (flags & HD_DELIM_MASK) >> 8;
1200 if ((flags & HD_COLUMN_MASK) != 0)
1201 cols = flags & HD_COLUMN_MASK;
1206 for (i = 0; i < length; i+= cols) {
1208 sbuf_printf(sb, "%s", hdr);
1210 if ((flags & HD_OMIT_COUNT) == 0)
1211 sbuf_printf(sb, "%04x ", i);
1213 if ((flags & HD_OMIT_HEX) == 0) {
1214 for (j = 0; j < cols; j++) {
1217 sbuf_printf(sb, "%c%02x", delim, cp[k]);
1219 sbuf_printf(sb, " ");
1223 if ((flags & HD_OMIT_CHARS) == 0) {
1224 sbuf_printf(sb, " |");
1225 for (j = 0; j < cols; j++) {
1228 sbuf_printf(sb, " ");
1229 else if (cp[k] >= ' ' && cp[k] <= '~')
1230 sbuf_printf(sb, "%c", cp[k]);
1232 sbuf_printf(sb, ".");
1234 sbuf_printf(sb, "|");
1236 sbuf_printf(sb, "\n");
1242 counted_warning(unsigned *counter, const char *msg)
1251 if (atomic_cmpset_int(counter, c, c - 1)) {
1253 log(LOG_INFO, "pid %d (%s) %s%s\n",
1254 td->td_proc->p_pid, td->td_name, msg,
1255 c > 1 ? "" : " - not logging anymore");
1264 sbuf_putbuf(struct sbuf *sb)
1267 prf_putbuf(sbuf_data(sb), TOLOG | TOCONS, -1);
1271 sbuf_putbuf(struct sbuf *sb)
1274 printf("%s", sbuf_data(sb));
1279 sbuf_printf_drain(void *arg, const char *data, int len)
1288 * This is allowed as an extra byte is always resvered for
1289 * terminating NUL byte. Save and restore the byte because
1290 * we might be flushing a record, and there may be valid
1291 * data after the buffer.
1294 dataptr = __DECONST(char *, data);
1295 dataptr[len] = '\0';
1297 prf_putbuf(dataptr, TOLOG | TOCONS, -1);
1300 dataptr[len] = oldchr;
1302 #else /* !_KERNEL */
1304 r = printf("%.*s", len, data);
1311 if (retvalptr != NULL)