Here's another attempt, incorporating millert's feedback and adding
a few more casts:

Index: bin/chio/parse.y
===================================================================
RCS file: /cvs/src/bin/chio/parse.y,v
retrieving revision 1.23
diff -u -p -r1.23 parse.y
--- bin/chio/parse.y    15 Oct 2020 19:42:56 -0000      1.23
+++ bin/chio/parse.y    2 Oct 2021 19:42:06 -0000
@@ -179,9 +179,9 @@ lookup(char *s)
 
 #define MAXPUSHBACK    128
 
-u_char *parsebuf;
+char   *parsebuf;
 int     parseindex;
-u_char  pushback_buffer[MAXPUSHBACK];
+char    pushback_buffer[MAXPUSHBACK];
 int     pushback_index = 0;
 
 int
@@ -192,7 +192,7 @@ lgetc(int quotec)
        if (parsebuf) {
                /* Read character from the parsebuffer instead of input. */
                if (parseindex >= 0) {
-                       c = parsebuf[parseindex++];
+                       c = (unsigned char)parsebuf[parseindex++];
                        if (c != '\0')
                                return (c);
                        parsebuf = NULL;
@@ -201,7 +201,7 @@ lgetc(int quotec)
        }
 
        if (pushback_index)
-               return (pushback_buffer[--pushback_index]);
+               return ((unsigned char)pushback_buffer[--pushback_index]);
 
        if (quotec) {
                if ((c = getc(file->stream)) == EOF) {
@@ -242,10 +242,10 @@ lungetc(int c)
                if (parseindex >= 0)
                        return (c);
        }
-       if (pushback_index < MAXPUSHBACK-1)
-               return (pushback_buffer[pushback_index++] = c);
-       else
+       if (pushback_index + 1 >= MAXPUSHBACK)
                return (EOF);
+       pushback_buffer[pushback_index++] = c;
+       return (c);
 }
 
 int
@@ -272,8 +272,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p;
+       char     buf[8096];
+       char    *p;
        int      quotec, next, c;
        int      token;
 
@@ -353,8 +353,8 @@ yylex(void)
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: sbin/dhcpleased/parse.y
===================================================================
RCS file: /cvs/src/sbin/dhcpleased/parse.y,v
retrieving revision 1.4
diff -u -p -r1.4 parse.y
--- sbin/dhcpleased/parse.y     20 Sep 2021 11:46:22 -0000      1.4
+++ sbin/dhcpleased/parse.y     2 Oct 2021 19:17:33 -0000
@@ -463,10 +463,10 @@ findeol(void)
 int
 yylex(void)
 {
-       unsigned char    buf[8096];
-       unsigned char   *p, *val;
-       int              quotec, next, c;
-       int              token;
+       char     buf[8096];
+       char    *p, *val;
+       int      quotec, next, c;
+       int      token;
 
 top:
        p = buf;
@@ -502,7 +502,7 @@ top:
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -578,8 +578,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: sbin/iked/parse.y
===================================================================
RCS file: /cvs/src/sbin/iked/parse.y,v
retrieving revision 1.132
diff -u -p -r1.132 parse.y
--- sbin/iked/parse.y   18 Sep 2021 16:45:52 -0000      1.132
+++ sbin/iked/parse.y   2 Oct 2021 19:07:12 -0000
@@ -1510,10 +1510,10 @@ findeol(void)
 int
 yylex(void)
 {
-       unsigned char    buf[8096];
-       unsigned char   *p, *val;
-       int              quotec, next, c;
-       int              token;
+       char     buf[8096];
+       char    *p, *val;
+       int      quotec, next, c;
+       int      token;
 
 top:
        p = buf;
@@ -1549,7 +1549,7 @@ top:
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -1625,8 +1625,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: sbin/ipsecctl/parse.y
===================================================================
RCS file: /cvs/src/sbin/ipsecctl/parse.y,v
retrieving revision 1.179
diff -u -p -r1.179 parse.y
--- sbin/ipsecctl/parse.y       29 Dec 2020 19:50:03 -0000      1.179
+++ sbin/ipsecctl/parse.y       2 Oct 2021 19:27:11 -0000
@@ -1054,9 +1054,9 @@ lookup(char *s)
 
 #define MAXPUSHBACK    128
 
-u_char *parsebuf;
+char   *parsebuf;
 int     parseindex;
-u_char  pushback_buffer[MAXPUSHBACK];
+char    pushback_buffer[MAXPUSHBACK];
 int     pushback_index = 0;
 
 int
@@ -1067,7 +1067,7 @@ lgetc(int quotec)
        if (parsebuf) {
                /* Read character from the parsebuffer instead of input. */
                if (parseindex >= 0) {
-                       c = parsebuf[parseindex++];
+                       c = (unsigned char)parsebuf[parseindex++];
                        if (c != '\0')
                                return (c);
                        parsebuf = NULL;
@@ -1076,7 +1076,7 @@ lgetc(int quotec)
        }
 
        if (pushback_index)
-               return (pushback_buffer[--pushback_index]);
+               return ((unsigned char)pushback_buffer[--pushback_index]);
 
        if (quotec) {
                if ((c = getc(file->stream)) == EOF) {
@@ -1116,10 +1116,10 @@ lungetc(int c)
                if (parseindex >= 0)
                        return (c);
        }
-       if (pushback_index < MAXPUSHBACK-1)
-               return (pushback_buffer[pushback_index++] = c);
-       else
+       if (pushback_index + 1 >= MAXPUSHBACK)
                return (EOF);
+       pushback_buffer[pushback_index++] = c;
+       return (c);
 }
 
 int
@@ -1132,7 +1132,7 @@ findeol(void)
        /* skip to either EOF or the first real EOL */
        while (1) {
                if (pushback_index)
-                       c = pushback_buffer[--pushback_index];
+                       c = (unsigned char)pushback_buffer[--pushback_index];
                else
                        c = lgetc(0);
                if (c == '\n') {
@@ -1148,8 +1148,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p, *val;
+       char     buf[8096];
+       char    *p, *val;
        int      quotec, next, c;
        int      token;
 
@@ -1258,8 +1258,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: sbin/pfctl/parse.y
===================================================================
RCS file: /cvs/src/sbin/pfctl/parse.y,v
retrieving revision 1.709
diff -u -p -r1.709 parse.y
--- sbin/pfctl/parse.y  1 Feb 2021 00:31:04 -0000       1.709
+++ sbin/pfctl/parse.y  2 Oct 2021 19:07:53 -0000
@@ -5170,8 +5170,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p, *val;
+       char     buf[8096];
+       char    *p, *val;
        int      quotec, next, c;
        int      token;
 
@@ -5209,7 +5209,7 @@ top:
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -5309,8 +5309,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: sbin/unwind/parse.y
===================================================================
RCS file: /cvs/src/sbin/unwind/parse.y,v
retrieving revision 1.27
diff -u -p -r1.27 parse.y
--- sbin/unwind/parse.y 31 Aug 2021 20:18:03 -0000      1.27
+++ sbin/unwind/parse.y 2 Oct 2021 19:08:30 -0000
@@ -557,10 +557,10 @@ findeol(void)
 int
 yylex(void)
 {
-       unsigned char    buf[8096];
-       unsigned char   *p, *val;
-       int              quotec, next, c;
-       int              token;
+       char     buf[8096];
+       char    *p, *val;
+       int      quotec, next, c;
+       int      token;
 
 top:
        p = buf;
@@ -596,7 +596,7 @@ top:
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -672,8 +672,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/acme-client/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/acme-client/parse.y,v
retrieving revision 1.42
diff -u -p -r1.42 parse.y
--- usr.sbin/acme-client/parse.y        14 Sep 2020 16:00:17 -0000      1.42
+++ usr.sbin/acme-client/parse.y        2 Oct 2021 19:08:57 -0000
@@ -594,8 +594,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p, *val;
+       char     buf[8096];
+       char    *p, *val;
        int      quotec, next, c;
        int      token;
 
@@ -633,7 +633,7 @@ top:
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -709,8 +709,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return c;
                }
Index: usr.sbin/bgpd/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/bgpd/parse.y,v
retrieving revision 1.419
diff -u -p -r1.419 parse.y
--- usr.sbin/bgpd/parse.y       1 Sep 2021 12:39:52 -0000       1.419
+++ usr.sbin/bgpd/parse.y       2 Oct 2021 19:09:32 -0000
@@ -3143,8 +3143,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p, *val;
+       char     buf[8096];
+       char    *p, *val;
        int      quotec, next, c;
        int      token;
 
@@ -3182,7 +3182,7 @@ top:
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -3278,8 +3278,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/dvmrpd/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/dvmrpd/parse.y,v
retrieving revision 1.39
diff -u -p -r1.39 parse.y
--- usr.sbin/dvmrpd/parse.y     13 Feb 2019 22:57:08 -0000      1.39
+++ usr.sbin/dvmrpd/parse.y     2 Oct 2021 19:28:47 -0000
@@ -421,9 +421,9 @@ lookup(char *s)
 
 #define MAXPUSHBACK    128
 
-u_char *parsebuf;
+char   *parsebuf;
 int     parseindex;
-u_char  pushback_buffer[MAXPUSHBACK];
+char    pushback_buffer[MAXPUSHBACK];
 int     pushback_index = 0;
 
 int
@@ -434,7 +434,7 @@ lgetc(int quotec)
        if (parsebuf) {
                /* Read character from the parsebuffer instead of input. */
                if (parseindex >= 0) {
-                       c = parsebuf[parseindex++];
+                       c = (unsigned char)parsebuf[parseindex++];
                        if (c != '\0')
                                return (c);
                        parsebuf = NULL;
@@ -443,7 +443,7 @@ lgetc(int quotec)
        }
 
        if (pushback_index)
-               return (pushback_buffer[--pushback_index]);
+               return ((unsigned char)pushback_buffer[--pushback_index]);
 
        if (quotec) {
                if ((c = getc(file->stream)) == EOF) {
@@ -484,10 +484,10 @@ lungetc(int c)
                if (parseindex >= 0)
                        return (c);
        }
-       if (pushback_index < MAXPUSHBACK-1)
-               return (pushback_buffer[pushback_index++] = c);
-       else
+       if (pushback_index + 1 >= MAXPUSHBACK)
                return (EOF);
+       pushback_buffer[pushback_index++] = c;
+       return (c);
 }
 
 int
@@ -500,7 +500,7 @@ findeol(void)
        /* skip to either EOF or the first real EOL */
        while (1) {
                if (pushback_index)
-                       c = pushback_buffer[--pushback_index];
+                       c = (unsigned char)pushback_buffer[--pushback_index];
                else
                        c = lgetc(0);
                if (c == '\n') {
@@ -516,8 +516,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p, *val;
+       char     buf[8096];
+       char    *p, *val;
        int      quotec, next, c;
        int      token;
 
@@ -626,8 +626,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/eigrpd/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/eigrpd/parse.y,v
retrieving revision 1.31
diff -u -p -r1.31 parse.y
--- usr.sbin/eigrpd/parse.y     30 Dec 2020 18:39:57 -0000      1.31
+++ usr.sbin/eigrpd/parse.y     2 Oct 2021 19:10:26 -0000
@@ -760,10 +760,10 @@ findeol(void)
 static int
 yylex(void)
 {
-       unsigned char    buf[8096];
-       unsigned char   *p, *val;
-       int              quotec, next, c;
-       int              token;
+       char     buf[8096];
+       char    *p, *val;
+       int      quotec, next, c;
+       int      token;
 
 top:
        p = buf;
@@ -799,7 +799,7 @@ top:
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -875,8 +875,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/hostapd/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/hostapd/parse.y,v
retrieving revision 1.61
diff -u -p -r1.61 parse.y
--- usr.sbin/hostapd/parse.y    10 May 2019 01:29:31 -0000      1.61
+++ usr.sbin/hostapd/parse.y    2 Oct 2021 19:10:52 -0000
@@ -1447,8 +1447,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p, *val;
+       char     buf[8096];
+       char    *p, *val;
        int      quotec, next, c;
        int      token;
 
@@ -1486,7 +1486,7 @@ top:
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -1586,8 +1586,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/httpd/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/httpd/parse.y,v
retrieving revision 1.125
diff -u -p -r1.125 parse.y
--- usr.sbin/httpd/parse.y      10 Apr 2021 10:10:07 -0000      1.125
+++ usr.sbin/httpd/parse.y      2 Oct 2021 19:11:16 -0000
@@ -1564,10 +1564,10 @@ findeol(void)
 int
 yylex(void)
 {
-       unsigned char    buf[8096];
-       unsigned char   *p, *val;
-       int              quotec, next, c;
-       int              token;
+       char     buf[8096];
+       char    *p, *val;
+       int      quotec, next, c;
+       int      token;
 
 top:
        p = buf;
@@ -1603,7 +1603,7 @@ top:
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -1679,8 +1679,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/ifstated/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/ifstated/parse.y,v
retrieving revision 1.55
diff -u -p -r1.55 parse.y
--- usr.sbin/ifstated/parse.y   13 Feb 2019 22:57:08 -0000      1.55
+++ usr.sbin/ifstated/parse.y   2 Oct 2021 19:31:52 -0000
@@ -415,9 +415,9 @@ lookup(char *s)
 
 #define MAXPUSHBACK    128
 
-u_char *parsebuf;
+char   *parsebuf;
 int     parseindex;
-u_char  pushback_buffer[MAXPUSHBACK];
+char    pushback_buffer[MAXPUSHBACK];
 int     pushback_index = 0;
 
 int
@@ -428,7 +428,7 @@ lgetc(int quotec)
        if (parsebuf) {
                /* Read character from the parsebuffer instead of input. */
                if (parseindex >= 0) {
-                       c = parsebuf[parseindex++];
+                       c = (unsigned char)parsebuf[parseindex++];
                        if (c != '\0')
                                return (c);
                        parsebuf = NULL;
@@ -437,7 +437,7 @@ lgetc(int quotec)
        }
 
        if (pushback_index)
-               return (pushback_buffer[--pushback_index]);
+               return ((unsigned char)pushback_buffer[--pushback_index]);
 
        if (quotec) {
                if ((c = getc(file->stream)) == EOF) {
@@ -478,10 +478,10 @@ lungetc(int c)
                if (parseindex >= 0)
                        return (c);
        }
-       if (pushback_index < MAXPUSHBACK-1)
-               return (pushback_buffer[pushback_index++] = c);
-       else
+       if (pushback_index + 1 >= MAXPUSHBACK)
                return (EOF);
+       pushback_buffer[pushback_index++] = c;
+       return (c);
 }
 
 int
@@ -494,7 +494,7 @@ findeol(void)
        /* skip to either EOF or the first real EOL */
        while (1) {
                if (pushback_index)
-                       c = pushback_buffer[--pushback_index];
+                       c = (unsigned char)pushback_buffer[--pushback_index];
                else
                        c = lgetc(0);
                if (c == '\n') {
@@ -510,8 +510,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p, *val;
+       char     buf[8096];
+       char    *p, *val;
        int      quotec, next, c;
        int      token;
 
@@ -620,8 +620,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/iscsictl/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/iscsictl/parse.y,v
retrieving revision 1.18
diff -u -p -r1.18 parse.y
--- usr.sbin/iscsictl/parse.y   13 Feb 2019 22:57:08 -0000      1.18
+++ usr.sbin/iscsictl/parse.y   2 Oct 2021 19:11:56 -0000
@@ -495,8 +495,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p, *val;
+       char     buf[8096];
+       char    *p, *val;
        int      quotec, next, c;
        int      token;
 
@@ -534,7 +534,7 @@ top:
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -610,8 +610,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/ldapd/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/ldapd/parse.y,v
retrieving revision 1.40
diff -u -p -r1.40 parse.y
--- usr.sbin/ldapd/parse.y      2 May 2021 14:39:05 -0000       1.40
+++ usr.sbin/ldapd/parse.y      2 Oct 2021 19:12:19 -0000
@@ -598,8 +598,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[4096];
-       u_char  *p, *val;
+       char     buf[4096];
+       char    *p, *val;
        int      quotec, next, c;
        int      token;
 
@@ -637,7 +637,7 @@ top:
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -713,8 +713,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/ldomctl/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/ldomctl/parse.y,v
retrieving revision 1.23
diff -u -p -r1.23 parse.y
--- usr.sbin/ldomctl/parse.y    30 Jan 2021 19:32:44 -0000      1.23
+++ usr.sbin/ldomctl/parse.y    2 Oct 2021 19:32:46 -0000
@@ -413,9 +413,9 @@ lookup(char *s)
 
 #define MAXPUSHBACK    128
 
-u_char *parsebuf;
+char   *parsebuf;
 int     parseindex;
-u_char  pushback_buffer[MAXPUSHBACK];
+char    pushback_buffer[MAXPUSHBACK];
 int     pushback_index = 0;
 
 int
@@ -426,7 +426,7 @@ lgetc(int quotec)
        if (parsebuf) {
                /* Read character from the parsebuffer instead of input. */
                if (parseindex >= 0) {
-                       c = parsebuf[parseindex++];
+                       c = (unsigned char)parsebuf[parseindex++];
                        if (c != '\0')
                                return (c);
                        parsebuf = NULL;
@@ -435,7 +435,7 @@ lgetc(int quotec)
        }
 
        if (pushback_index)
-               return (pushback_buffer[--pushback_index]);
+               return ((unsigned char)pushback_buffer[--pushback_index]);
 
        if (quotec) {
                if ((c = getc(file->stream)) == EOF) {
@@ -476,10 +476,10 @@ lungetc(int c)
                if (parseindex >= 0)
                        return (c);
        }
-       if (pushback_index < MAXPUSHBACK-1)
-               return (pushback_buffer[pushback_index++] = c);
-       else
+       if (pushback_index + 1 >= MAXPUSHBACK)
                return (EOF);
+       pushback_buffer[pushback_index++] = c;
+       return (c);
 }
 
 int
@@ -492,7 +492,7 @@ findeol(void)
        /* skip to either EOF or the first real EOL */
        while (1) {
                if (pushback_index)
-                       c = pushback_buffer[--pushback_index];
+                       c = (unsigned char)pushback_buffer[--pushback_index];
                else
                        c = lgetc(0);
                if (c == '\n') {
@@ -508,8 +508,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p;
+       char     buf[8096];
+       char    *p;
        int      quotec, next, c;
        int      token;
 
@@ -589,8 +589,8 @@ yylex(void)
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/ldpd/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/ldpd/parse.y,v
retrieving revision 1.71
diff -u -p -r1.71 parse.y
--- usr.sbin/ldpd/parse.y       13 Feb 2019 22:57:08 -0000      1.71
+++ usr.sbin/ldpd/parse.y       2 Oct 2021 19:12:48 -0000
@@ -1074,10 +1074,10 @@ findeol(void)
 static int
 yylex(void)
 {
-       unsigned char    buf[8096];
-       unsigned char   *p, *val;
-       int              quotec, next, c;
-       int              token;
+       char     buf[8096];
+       char    *p, *val;
+       int      quotec, next, c;
+       int      token;
 
  top:
        p = buf;
@@ -1113,7 +1113,7 @@ yylex(void)
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -1189,8 +1189,8 @@ yylex(void)
                } else {
  nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/lpd/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/lpd/parse.y,v
retrieving revision 1.7
diff -u -p -r1.7 parse.y
--- usr.sbin/lpd/parse.y        28 Jun 2019 13:32:48 -0000      1.7
+++ usr.sbin/lpd/parse.y        2 Oct 2021 19:30:52 -0000
@@ -277,10 +277,10 @@ lookup(char *s)
 
 #define MAXPUSHBACK    128
 
-unsigned char  *parsebuf;
-int             parseindex;
-unsigned char   pushback_buffer[MAXPUSHBACK];
-int             pushback_index = 0;
+char   *parsebuf;
+int     parseindex;
+char    pushback_buffer[MAXPUSHBACK];
+int     pushback_index = 0;
 
 int
 lgetc(int quotec)
@@ -290,7 +290,7 @@ lgetc(int quotec)
        if (parsebuf) {
                /* Read character from the parsebuffer instead of input. */
                if (parseindex >= 0) {
-                       c = parsebuf[parseindex++];
+                       c = (unsigned char)parsebuf[parseindex++];
                        if (c != '\0')
                                return (c);
                        parsebuf = NULL;
@@ -299,7 +299,7 @@ lgetc(int quotec)
        }
 
        if (pushback_index)
-               return (pushback_buffer[--pushback_index]);
+               return ((unsigned char)pushback_buffer[--pushback_index]);
 
        if (quotec) {
                if ((c = getc(file->stream)) == EOF) {
@@ -340,10 +340,10 @@ lungetc(int c)
                if (parseindex >= 0)
                        return (c);
        }
-       if (pushback_index < MAXPUSHBACK-1)
-               return (pushback_buffer[pushback_index++] = c);
-       else
+       if (pushback_index + 1 >= MAXPUSHBACK)
                return (EOF);
+       pushback_buffer[pushback_index++] = c;
+       return (c);
 }
 
 int
@@ -370,10 +370,10 @@ findeol(void)
 int
 yylex(void)
 {
-       unsigned char    buf[8096];
-       unsigned char   *p, *val;
-       int              quotec, next, c;
-       int              token;
+       char     buf[8096];
+       char    *p, *val;
+       int      quotec, next, c;
+       int      token;
 
 top:
        p = buf;
@@ -480,8 +480,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/npppd/npppd/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/npppd/npppd/parse.y,v
retrieving revision 1.24
diff -u -p -r1.24 parse.y
--- usr.sbin/npppd/npppd/parse.y        27 Feb 2019 04:52:19 -0000      1.24
+++ usr.sbin/npppd/npppd/parse.y        2 Oct 2021 19:34:17 -0000
@@ -1108,9 +1108,9 @@ lookup(char *s)
 
 #define MAXPUSHBACK    128
 
-u_char *parsebuf;
+char   *parsebuf;
 int     parseindex;
-u_char  pushback_buffer[MAXPUSHBACK];
+char    pushback_buffer[MAXPUSHBACK];
 int     pushback_index = 0;
 
 int
@@ -1121,7 +1121,7 @@ lgetc(int quotec)
        if (parsebuf) {
                /* Read character from the parsebuffer instead of input. */
                if (parseindex >= 0) {
-                       c = parsebuf[parseindex++];
+                       c = (unsigned char)parsebuf[parseindex++];
                        if (c != '\0')
                                return (c);
                        parsebuf = NULL;
@@ -1130,7 +1130,7 @@ lgetc(int quotec)
        }
 
        if (pushback_index)
-               return (pushback_buffer[--pushback_index]);
+               return ((unsigned char)pushback_buffer[--pushback_index]);
 
        if (quotec) {
                if ((c = getc(file->stream)) == EOF) {
@@ -1171,10 +1171,10 @@ lungetc(int c)
                if (parseindex >= 0)
                        return (c);
        }
-       if (pushback_index < MAXPUSHBACK-1)
-               return (pushback_buffer[pushback_index++] = c);
-       else
+       if (pushback_index + 1 >= MAXPUSHBACK)
                return (EOF);
+       pushback_buffer[pushback_index++] = c;
+       return (c);
 }
 
 int
@@ -1187,7 +1187,7 @@ findeol(void)
        /* skip to either EOF or the first real EOL */
        while (1) {
                if (pushback_index)
-                       c = pushback_buffer[--pushback_index];
+                       c = (unsigned char)pushback_buffer[--pushback_index];
                else
                        c = lgetc(0);
                if (c == '\n') {
@@ -1203,8 +1203,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p;
+       char     buf[8096];
+       char    *p;
        int      quotec, next, c;
        int      token;
 
@@ -1286,8 +1286,8 @@ yylex(void)
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/ntpd/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/ntpd/parse.y,v
retrieving revision 1.77
diff -u -p -r1.77 parse.y
--- usr.sbin/ntpd/parse.y       11 Apr 2020 07:49:48 -0000      1.77
+++ usr.sbin/ntpd/parse.y       2 Oct 2021 19:35:06 -0000
@@ -561,9 +561,9 @@ lookup(char *s)
 
 #define MAXPUSHBACK    128
 
-u_char *parsebuf;
+char   *parsebuf;
 int     parseindex;
-u_char  pushback_buffer[MAXPUSHBACK];
+char    pushback_buffer[MAXPUSHBACK];
 int     pushback_index = 0;
 
 int
@@ -574,7 +574,7 @@ lgetc(int quotec)
        if (parsebuf) {
                /* Read character from the parsebuffer instead of input. */
                if (parseindex >= 0) {
-                       c = parsebuf[parseindex++];
+                       c = (unsigned char)parsebuf[parseindex++];
                        if (c != '\0')
                                return (c);
                        parsebuf = NULL;
@@ -583,7 +583,7 @@ lgetc(int quotec)
        }
 
        if (pushback_index)
-               return (pushback_buffer[--pushback_index]);
+               return ((unsigned char)pushback_buffer[--pushback_index]);
 
        if (quotec) {
                if ((c = getc(file->stream)) == EOF) {
@@ -624,10 +624,10 @@ lungetc(int c)
                if (parseindex >= 0)
                        return (c);
        }
-       if (pushback_index < MAXPUSHBACK-1)
-               return (pushback_buffer[pushback_index++] = c);
-       else
+       if (pushback_index + 1 >= MAXPUSHBACK)
                return (EOF);
+       pushback_buffer[pushback_index++] = c;
+       return (c);
 }
 
 int
@@ -640,7 +640,7 @@ findeol(void)
        /* skip to either EOF or the first real EOL */
        while (1) {
                if (pushback_index)
-                       c = pushback_buffer[--pushback_index];
+                       c = (unsigned char)pushback_buffer[--pushback_index];
                else
                        c = lgetc(0);
                if (c == '\n') {
@@ -656,8 +656,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p;
+       char     buf[8096];
+       char    *p;
        int      quotec, next, c;
        int      token;
 
@@ -739,8 +739,8 @@ yylex(void)
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/ospf6d/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/ospf6d/parse.y,v
retrieving revision 1.50
diff -u -p -r1.50 parse.y
--- usr.sbin/ospf6d/parse.y     29 Dec 2020 19:44:26 -0000      1.50
+++ usr.sbin/ospf6d/parse.y     2 Oct 2021 19:13:22 -0000
@@ -788,8 +788,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p, *val;
+       char     buf[8096];
+       char    *p, *val;
        int      quotec, next, c;
        int      token;
 
@@ -827,7 +827,7 @@ top:
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -903,8 +903,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/ospfd/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/ospfd/parse.y,v
retrieving revision 1.103
diff -u -p -r1.103 parse.y
--- usr.sbin/ospfd/parse.y      25 Jan 2021 06:16:38 -0000      1.103
+++ usr.sbin/ospfd/parse.y      2 Oct 2021 19:13:50 -0000
@@ -979,8 +979,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p, *val;
+       char     buf[8096];
+       char    *p, *val;
        int      quotec, next, c;
        int      token;
 
@@ -1018,7 +1018,7 @@ top:
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -1094,8 +1094,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/rad/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/rad/parse.y,v
retrieving revision 1.18
diff -u -p -r1.18 parse.y
--- usr.sbin/rad/parse.y        1 Mar 2021 08:05:40 -0000       1.18
+++ usr.sbin/rad/parse.y        2 Oct 2021 19:14:16 -0000
@@ -579,10 +579,10 @@ findeol(void)
 int
 yylex(void)
 {
-       unsigned char    buf[8096];
-       unsigned char   *p, *val;
-       int              quotec, next, c;
-       int              token;
+       char     buf[8096];
+       char    *p, *val;
+       int      quotec, next, c;
+       int      token;
 
 top:
        p = buf;
@@ -618,7 +618,7 @@ top:
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -694,8 +694,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/radiusd/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/radiusd/parse.y,v
retrieving revision 1.12
diff -u -p -r1.12 parse.y
--- usr.sbin/radiusd/parse.y    1 Apr 2019 11:05:41 -0000       1.12
+++ usr.sbin/radiusd/parse.y    2 Oct 2021 19:36:09 -0000
@@ -450,9 +450,9 @@ lookup(char *s)
 
 #define MAXPUSHBACK    128
 
-u_char *parsebuf;
+char   *parsebuf;
 int     parseindex;
-u_char  pushback_buffer[MAXPUSHBACK];
+char    pushback_buffer[MAXPUSHBACK];
 int     pushback_index = 0;
 
 int
@@ -463,7 +463,7 @@ lgetc(int quotec)
        if (parsebuf) {
                /* Read character from the parsebuffer instead of input. */
                if (parseindex >= 0) {
-                       c = parsebuf[parseindex++];
+                       c = (unsigned char)parsebuf[parseindex++];
                        if (c != '\0')
                                return (c);
                        parsebuf = NULL;
@@ -472,7 +472,7 @@ lgetc(int quotec)
        }
 
        if (pushback_index)
-               return (pushback_buffer[--pushback_index]);
+               return ((unsigned char)pushback_buffer[--pushback_index]);
 
        if (quotec) {
                if ((c = getc(file->stream)) == EOF) {
@@ -513,10 +513,10 @@ lungetc(int c)
                if (parseindex >= 0)
                        return (c);
        }
-       if (pushback_index < MAXPUSHBACK-1)
-               return (pushback_buffer[pushback_index++] = c);
-       else
+       if (pushback_index + 1 >= MAXPUSHBACK)
                return (EOF);
+       pushback_buffer[pushback_index++] = c;
+       return (c);
 }
 
 int
@@ -529,7 +529,7 @@ findeol(void)
        /* skip to either EOF or the first real EOL */
        while (1) {
                if (pushback_index)
-                       c = pushback_buffer[--pushback_index];
+                       c = (unsigned char)pushback_buffer[--pushback_index];
                else
                        c = lgetc(0);
                if (c == '\n') {
@@ -545,8 +545,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p;
+       char     buf[8096];
+       char    *p;
        int      quotec, next, c;
        int      token;
 
@@ -628,8 +628,8 @@ yylex(void)
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/relayd/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/relayd/parse.y,v
retrieving revision 1.252
diff -u -p -r1.252 parse.y
--- usr.sbin/relayd/parse.y     17 Jan 2021 15:17:13 -0000      1.252
+++ usr.sbin/relayd/parse.y     2 Oct 2021 19:14:43 -0000
@@ -2631,8 +2631,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p, *val;
+       char     buf[8096];
+       char    *p, *val;
        int      quotec, next, c;
        int      token;
 
@@ -2670,7 +2670,7 @@ top:
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -2746,8 +2746,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/ripd/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/ripd/parse.y,v
retrieving revision 1.47
diff -u -p -r1.47 parse.y
--- usr.sbin/ripd/parse.y       10 May 2019 01:29:31 -0000      1.47
+++ usr.sbin/ripd/parse.y       2 Oct 2021 19:37:00 -0000
@@ -456,9 +456,9 @@ lookup(char *s)
 
 #define MAXPUSHBACK    128
 
-u_char *parsebuf;
+char   *parsebuf;
 int     parseindex;
-u_char  pushback_buffer[MAXPUSHBACK];
+char    pushback_buffer[MAXPUSHBACK];
 int     pushback_index = 0;
 
 int
@@ -469,7 +469,7 @@ lgetc(int quotec)
        if (parsebuf) {
                /* Read character from the parsebuffer instead of input. */
                if (parseindex >= 0) {
-                       c = parsebuf[parseindex++];
+                       c = (unsigned char)parsebuf[parseindex++];
                        if (c != '\0')
                                return (c);
                        parsebuf = NULL;
@@ -478,7 +478,7 @@ lgetc(int quotec)
        }
 
        if (pushback_index)
-               return (pushback_buffer[--pushback_index]);
+               return ((unsigned char)pushback_buffer[--pushback_index]);
 
        if (quotec) {
                if ((c = getc(file->stream)) == EOF) {
@@ -519,10 +519,10 @@ lungetc(int c)
                if (parseindex >= 0)
                        return (c);
        }
-       if (pushback_index < MAXPUSHBACK-1)
-               return (pushback_buffer[pushback_index++] = c);
-       else
+       if (pushback_index + 1 >= MAXPUSHBACK)
                return (EOF);
+       pushback_buffer[pushback_index++] = c;
+       return (c);
 }
 
 int
@@ -535,7 +535,7 @@ findeol(void)
        /* skip to either EOF or the first real EOL */
        while (1) {
                if (pushback_index)
-                       c = pushback_buffer[--pushback_index];
+                       c = (unsigned char)pushback_buffer[--pushback_index];
                else
                        c = lgetc(0);
                if (c == '\n') {
@@ -551,8 +551,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p, *val;
+       char     buf[8096];
+       char    *p, *val;
        int      quotec, next, c;
        int      token;
 
@@ -661,8 +661,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/smtpd/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/smtpd/parse.y,v
retrieving revision 1.289
diff -u -p -r1.289 parse.y
--- usr.sbin/smtpd/parse.y      14 Jun 2021 17:58:15 -0000      1.289
+++ usr.sbin/smtpd/parse.y      2 Oct 2021 19:15:20 -0000
@@ -2859,10 +2859,10 @@ findeol(void)
 int
 yylex(void)
 {
-       unsigned char    buf[8096];
-       unsigned char   *p, *val;
-       int              quotec, next, c;
-       int              token;
+       char     buf[8096];
+       char    *p, *val;
+       int      quotec, next, c;
+       int      token;
 
 top:
        p = buf;
@@ -2898,7 +2898,7 @@ top:
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -2974,8 +2974,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/snmpd/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/snmpd/parse.y,v
retrieving revision 1.68
diff -u -p -r1.68 parse.y
--- usr.sbin/snmpd/parse.y      2 Sep 2021 05:41:02 -0000       1.68
+++ usr.sbin/snmpd/parse.y      2 Oct 2021 19:15:43 -0000
@@ -1167,8 +1167,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p, *val;
+       char     buf[8096];
+       char    *p, *val;
        int      quotec, next, c;
        int      token;
 
@@ -1206,7 +1206,7 @@ top:
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -1282,8 +1282,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/switchd/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/switchd/parse.y,v
retrieving revision 1.15
diff -u -p -r1.15 parse.y
--- usr.sbin/switchd/parse.y    13 Feb 2019 22:57:08 -0000      1.15
+++ usr.sbin/switchd/parse.y    2 Oct 2021 19:16:06 -0000
@@ -419,8 +419,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p, *val;
+       char     buf[8096];
+       char    *p, *val;
        int      quotec, next, c;
        int      token;
 
@@ -458,7 +458,7 @@ top:
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -534,8 +534,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/vmd/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/vmd/parse.y,v
retrieving revision 1.58
diff -u -p -r1.58 parse.y
--- usr.sbin/vmd/parse.y        16 Jun 2021 16:55:02 -0000      1.58
+++ usr.sbin/vmd/parse.y        2 Oct 2021 19:16:38 -0000
@@ -930,8 +930,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p, *val;
+       char     buf[8096];
+       char    *p, *val;
        int      quotec, next, c;
        int      token;
 
@@ -969,7 +969,7 @@ top:
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -1045,8 +1045,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
Index: usr.sbin/ypldap/parse.y
===================================================================
RCS file: /cvs/src/usr.sbin/ypldap/parse.y,v
retrieving revision 1.33
diff -u -p -r1.33 parse.y
--- usr.sbin/ypldap/parse.y     13 Feb 2019 22:57:08 -0000      1.33
+++ usr.sbin/ypldap/parse.y     2 Oct 2021 19:05:44 -0000
@@ -605,8 +605,8 @@ findeol(void)
 int
 yylex(void)
 {
-       u_char   buf[8096];
-       u_char  *p, *val;
+       char     buf[8096];
+       char    *p, *val;
        int      quotec, next, c;
        int      token;
 
@@ -644,7 +644,7 @@ top:
                p = val + strlen(val) - 1;
                lungetc(DONE_EXPAND);
                while (p >= val) {
-                       lungetc(*p);
+                       lungetc((unsigned char)*p);
                        p--;
                }
                lungetc(START_EXPAND);
@@ -720,8 +720,8 @@ top:
                } else {
 nodigits:
                        while (p > buf + 1)
-                               lungetc(*--p);
-                       c = *--p;
+                               lungetc((unsigned char)*--p);
+                       c = (unsigned char)*--p;
                        if (c == '-')
                                return (c);
                }
-- 
Christian "naddy" Weisgerber                          na...@mips.inka.de

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