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Make m4 more 8bit clean.

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Don't use is*(EOF)
This fix core dump when LANG setted to 8bit wide charset
and ENABLE_STARTUP_LOCALE
This commit is contained in:
Andrey A. Chernov 1994-12-18 23:58:25 +00:00
parent e72e8750d3
commit 7c5eeb390e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=5165
5 changed files with 26 additions and 24 deletions
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6
usr.bin/m4/eval.c
View File

@ -378,8 +378,8 @@ expand(argv, argc)
register char *argv[];
register int argc;
{
register char *t;
register char *p;
register unsigned char *t;
register unsigned char *p;
register int n;
register int argno;
@ -688,7 +688,7 @@ dosub(argv, argc)
register char *argv[];
register int argc;
{
register char *ap, *fc, *k;
register unsigned char *ap, *fc, *k;
register int nc;
if (argc < 5)

12
usr.bin/m4/extern.h
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@ -65,7 +65,7 @@ void map __P((char *, char *, char *, char *));
void onintr __P((int));
void oops __P((const char *, ...));
void pbnum __P((int));
void pbstr __P((char *));
void pbstr __P((unsigned char *));
void putback __P((int));
void remhash __P((char *, int));
void usage __P((void));
@ -79,13 +79,13 @@ extern int fp; /* m4 call frame pointer */
extern int ilevel; /* input file stack pointer */
extern int oindex; /* diversion index. */
extern int sp; /* current m4 stack pointer */
extern char *bp; /* first available character */
extern char buf[]; /* push-back buffer */
extern char *bufbase; /* buffer base for this ilevel */
extern char *bbase[]; /* buffer base per ilevel */
extern unsigned char *bp; /* first available character */
extern unsigned char buf[]; /* push-back buffer */
extern unsigned char *bufbase; /* buffer base for this ilevel */
extern unsigned char *bbase[]; /* buffer base per ilevel */
extern char ecommt; /* end character for comment */
extern char *endest; /* end of string space */
extern char *endpbb; /* end of push-back buffer */
extern unsigned char *endpbb; /* end of push-back buffer */
extern char *ep; /* first free char in strspace */
extern char lquote; /* left quote character (`) */
extern char *m4temp; /* filename for diversions */

20
usr.bin/m4/main.c
View File

@ -63,11 +63,11 @@ static char sccsid[] = "@(#)main.c 8.1 (Berkeley) 6/6/93";
#include "pathnames.h"
ndptr hashtab[HASHSIZE]; /* hash table for macros etc. */
char buf[BUFSIZE]; /* push-back buffer */
char *bufbase = buf; /* the base for current ilevel */
char *bbase[MAXINP]; /* the base for each ilevel */
char *bp = buf; /* first available character */
char *endpbb = buf+BUFSIZE; /* end of push-back buffer */
unsigned char buf[BUFSIZE]; /* push-back buffer */
unsigned char *bufbase = buf; /* the base for current ilevel */
unsigned char *bbase[MAXINP]; /* the base for each ilevel */
unsigned char *bp = buf; /* first available character */
unsigned char *endpbb = buf+BUFSIZE; /* end of push-back buffer */
stae mstack[STACKMAX+1]; /* stack of m4 machine */
char strspace[STRSPMAX+1]; /* string space for evaluation */
char *ep = strspace; /* first free char in strspace */
@ -248,7 +248,7 @@ macro() {
register int nlpar;
cycle {
if ((t = gpbc()) == '_' || isalpha(t)) {
if ((t = gpbc()) == '_' || (t != EOF && isalpha(t))) {
putback(t);
if ((p = inspect(s = token)) == nil) {
if (sp < 0)
@ -327,7 +327,7 @@ macro() {
case LPAREN:
if (PARLEV > 0)
chrsave(t);
while (isspace(l = gpbc()))
while ((l = gpbc()) != EOF && isspace(l))
; /* skip blank, tab, nl.. */
putback(l);
PARLEV++;
@ -356,7 +356,7 @@ macro() {
case COMMA:
if (PARLEV == 1) {
chrsave(EOS); /* new argument */
while (isspace(l = gpbc()))
while ((l = gpbc()) != EOF && isspace(l))
;
putback(l);
pushs(ep);
@ -380,13 +380,13 @@ ndptr
inspect(tp)
register char *tp;
{
register char c;
register int c;
register char *name = tp;
register char *etp = tp+MAXTOK;
register ndptr p;
register unsigned long h = 0;
while ((isalnum(c = gpbc()) || c == '_') && tp < etp)
while ((c = gpbc()) != EOF && (isalnum(c) || c == '_') && tp < etp)
h = (h << 5) + h + (*tp++ = c);
putback(c);
if (tp == etp)

2
usr.bin/m4/mdef.h
View File

@ -142,7 +142,7 @@ typedef union { /* stack structure */
* pushf() - push a call frame entry onto stack
* pushs() - push a string pointer onto stack
*/
#define gpbc() (bp > bufbase) ? *--bp : getc(infile[ilevel])
#define gpbc() (bp > bufbase) ? (*--bp ? *bp : EOF) : getc(infile[ilevel])
#define pushf(x) if (sp < STACKMAX) mstack[++sp].sfra = (x)
#define pushs(x) if (sp < STACKMAX) mstack[++sp].sstr = (x)

10
usr.bin/m4/misc.c
View File

@ -73,8 +73,10 @@ char *s2;
*/
void
putback(c)
char c;
int c;
{
if (c == EOF)
c = 0;
if (bp < endpbb)
*bp++ = c;
else
@ -88,10 +90,10 @@ char c;
*/
void
pbstr(s)
register char *s;
register unsigned char *s;
{
register char *es;
register char *zp;
register unsigned char *es;
register unsigned char *zp;
es = s;
zp = bp;