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D26456.1789552477.diff
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Index: usr.sbin/syslogd/syslogd.c
===================================================================
--- usr.sbin/syslogd/syslogd.c
+++ usr.sbin/syslogd/syslogd.c
@@ -133,8 +133,10 @@
#include <fnmatch.h>
#include <libutil.h>
#include <limits.h>
+#include <locale.h>
#include <netdb.h>
#include <paths.h>
+#include <regex.h>
#include <signal.h>
#include <stdbool.h>
#include <stddef.h>
@@ -142,9 +144,11 @@
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
+#include <uchar.h>
#include <unistd.h>
#include <utmpx.h>
-#include <regex.h>
+#include <vis.h>
+#include <wctype.h>
#include "pathnames.h"
#include "ttymsg.h"
@@ -784,6 +788,9 @@
/* tuck my process id away */
pidfile_write(pfh);
+ /* set the character set locale */
+ setlocale(LC_CTYPE, "");
+
dprintf("off & running....\n");
tvp = &tv;
@@ -961,28 +968,45 @@
static void
parsemsg_remove_unsafe_characters(const char *in, char *out, size_t outlen)
{
- char *q;
+ const char *p, *end_p;
+ char *q, *end_q;
int c;
+ size_t n, max_len;
+ p = in;
q = out;
- while ((c = (unsigned char)*in++) != '\0' && q < out + outlen - 4) {
- if (mask_C1 && (c & 0x80) && c < 0xA0) {
- c &= 0x7F;
- *q++ = 'M';
- *q++ = '-';
- }
- if (isascii(c) && iscntrl(c)) {
- if (c == '\n') {
- *q++ = ' ';
- } else if (c == '\t') {
- *q++ = '\t';
- } else {
- *q++ = '^';
- *q++ = c ^ 0100;
+ end_p = p + strlen(p);
+ end_q = out + outlen - 1;
+ while (p < end_p && q < end_q) {
+ max_len = MB_LEN_MAX > (end_p - p) ? (end_p - p) : MB_LEN_MAX;
+ n = mbtowc(&c, p, max_len);
+ if (n == 0) {
+ break;
+ } else if (n == (size_t)-1 || n == (size_t)-2) {
+ /* Invalid char sequence for this charset. */
+ c = *p;
+ n = (size_t)1;
+ }
+
+ if (c == '\n') {
+ *q++ = ' ';
+ } else if (c == '\t') {
+ *q++ = '\t';
+ } else if (!mask_C1 && (c & 0x80) && c < 0xA0) {
+ *q++ = c;
+ } else if (iswprint(c)) {
+ if (q > end_q - n) {
+ break;
}
+ memcpy(q, p, n);
+ q += n;
} else {
- *q++ = c;
+ if (q > end_q - 4) {
+ break;
+ }
+ q = vis(q, c, 0, 0);
}
+ p += n;
}
*q = '\0';
}

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