svn commit: r352065 - head/usr.bin/m4
Baptiste Daroussin
bapt at FreeBSD.org
Mon Sep 9 15:18:06 UTC 2019
Author: bapt
Date: Mon Sep 9 15:18:04 2019
New Revision: 352065
URL: https://svnweb.freebsd.org/changeset/base/352065
Log:
Import from OpenBSD: -E flag
Add -E flag (make warnings fatal), following the behavior of GNU m4 1.4.9+
Help and direction millert@ espie@ anton@ deraadt@
ok espie@
Obtained from: OpenBSD
Modified:
head/usr.bin/m4/eval.c
head/usr.bin/m4/extern.h
head/usr.bin/m4/gnum4.c
head/usr.bin/m4/m4.1
head/usr.bin/m4/main.c
head/usr.bin/m4/misc.c
head/usr.bin/m4/tokenizer.l
Modified: head/usr.bin/m4/eval.c
==============================================================================
--- head/usr.bin/m4/eval.c Mon Sep 9 14:56:06 2019 (r352064)
+++ head/usr.bin/m4/eval.c Mon Sep 9 15:18:04 2019 (r352065)
@@ -1,4 +1,4 @@
-/* $OpenBSD: eval.c,v 1.74 2015/02/05 12:59:57 millert Exp $ */
+/* $OpenBSD: eval.c,v 1.75 2017/06/15 13:48:42 bcallah Exp $ */
/* $NetBSD: eval.c,v 1.7 1996/11/10 21:21:29 pk Exp $ */
/*-
@@ -275,6 +275,10 @@ expand_builtin(const char *argv[], int argc, int td)
warn("%s at line %lu: include(%s)",
CURRENT_NAME, CURRENT_LINE, argv[2]);
exit_code = 1;
+ if (fatal_warns) {
+ killdiv();
+ exit(exit_code);
+ }
} else
err(1, "%s at line %lu: include(%s)",
CURRENT_NAME, CURRENT_LINE, argv[2]);
Modified: head/usr.bin/m4/extern.h
==============================================================================
--- head/usr.bin/m4/extern.h Mon Sep 9 14:56:06 2019 (r352064)
+++ head/usr.bin/m4/extern.h Mon Sep 9 15:18:04 2019 (r352065)
@@ -1,4 +1,4 @@
-/* $OpenBSD: extern.h,v 1.54 2014/05/12 19:11:19 espie Exp $ */
+/* $OpenBSD: extern.h,v 1.55 2017/06/15 13:48:42 bcallah Exp $ */
/* $NetBSD: extern.h,v 1.3 1996/01/13 23:25:24 pk Exp $ */
/*-
@@ -61,6 +61,8 @@ extern void doesyscmd(const char *);
extern void getdivfile(const char *);
extern void doformat(const char *[], int);
+extern void m4_warnx(const char *, ...);
+
/* look.c */
#define FLAG_UNTRACED 0
@@ -178,4 +180,5 @@ extern int synch_lines; /* line synchronisation direc
extern int mimic_gnu; /* behaves like gnu-m4 */
extern int prefix_builtins; /* prefix builtin macros with m4_ */
-
+extern int error_warns; /* make warnings cause exit_code = 1 */
+extern int fatal_warns; /* make warnings fatal */
Modified: head/usr.bin/m4/gnum4.c
==============================================================================
--- head/usr.bin/m4/gnum4.c Mon Sep 9 14:56:06 2019 (r352064)
+++ head/usr.bin/m4/gnum4.c Mon Sep 9 15:18:04 2019 (r352065)
@@ -1,4 +1,4 @@
-/* $OpenBSD: gnum4.c,v 1.50 2015/04/29 00:13:26 millert Exp $ */
+/* $OpenBSD: gnum4.c,v 1.51 2017/06/15 13:48:42 bcallah Exp $ */
/*-
* SPDX-License-Identifier: BSD-2-Clause
@@ -39,6 +39,7 @@ __FBSDID("$FreeBSD$");
#include <err.h>
#include <paths.h>
#include <regex.h>
+#include <stdarg.h>
#include <stddef.h>
#include <stdlib.h>
#include <stdint.h>
@@ -259,11 +260,29 @@ exit_regerror(int er, regex_t *re, const char *source)
m4errx(1, "regular expression error in %s: %s.", source, errbuf);
}
+/* warnx() plus check to see if we need to change exit code or exit .
+ * -E flag functionality.
+ */
+void
+m4_warnx(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ warnx(fmt, ap);
+ va_end(ap);
+
+ if (fatal_warns)
+ exit(1);
+ if (error_warns)
+ exit_code = 1;
+}
+
static void
add_sub(int n, const char *string, regex_t *re, regmatch_t *pm)
{
if (n > (int)re->re_nsub)
- warnx("No subexpression %d", n);
+ m4_warnx("No subexpression %d", n);
/* Subexpressions that did not match are
* not an error. */
else if (pm[n].rm_so != -1 &&
@@ -446,7 +465,7 @@ void
dopatsubst(const char *argv[], int argc)
{
if (argc <= 3) {
- warnx("Too few arguments to patsubst");
+ m4_warnx("Too few arguments to patsubst");
return;
}
/* special case: empty regexp */
@@ -498,7 +517,7 @@ doregexp(const char *argv[], int argc)
const char *source;
if (argc <= 3) {
- warnx("Too few arguments to regexp");
+ m4_warnx("Too few arguments to regexp");
return;
}
/* special gnu case */
Modified: head/usr.bin/m4/m4.1
==============================================================================
--- head/usr.bin/m4/m4.1 Mon Sep 9 14:56:06 2019 (r352064)
+++ head/usr.bin/m4/m4.1 Mon Sep 9 15:18:04 2019 (r352065)
@@ -1,5 +1,5 @@
.\" $NetBSD: m4.1,v 1.23 2012/04/08 22:00:39 wiz Exp $
-.\" @(#) $OpenBSD: m4.1,v 1.63 2015/09/14 20:06:58 schwarze Exp $
+.\" @(#) $OpenBSD: m4.1,v 1.64 2017/06/15 13:48:42 bcallah Exp $
.\"
.\" Copyright (c) 1989, 1993
.\" The Regents of the University of California. All rights reserved.
@@ -33,7 +33,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd $Mdocdate: September 14 2015 $
+.Dd $Mdocdate: June 15 2017 $
.Dt M4 1
.Os
.Sh NAME
@@ -41,7 +41,7 @@
.Nd macro language processor
.Sh SYNOPSIS
.Nm
-.Op Fl gPs
+.Op Fl EgPs
.Oo
.Sm off
.Fl D Ar name Op No = Ar value
@@ -130,6 +130,21 @@ turn on all options.
.Pp
By default, trace is set to
.Qq eq .
+.It Fl E
+Set warnings to be fatal.
+When a single
+.Fl E
+flag is specified, if warnings are issued, execution
+continues but
+.Nm
+will exit with a non-zero exit status.
+When multiple
+.Fl E
+flags are specified, execution will halt upon issuing the
+first warning and
+.Nm
+will exit with a non-zero exit status.
+This behaviour matches GNU-m4 1.4.9 and later.
.It Fl g
Activate GNU-m4 compatibility mode.
In this mode, translit handles simple character
@@ -437,7 +452,9 @@ Returns the current file's name.
.Pp
But note that the
.Ic m4exit
-macro can modify the exit status.
+macro can modify the exit status, as can the
+.Fl E
+flag.
.Sh STANDARDS
The
.Nm
@@ -446,7 +463,7 @@ utility is compliant with the
specification.
.Pp
The flags
-.Op Fl dgIPot
+.Op Fl dEgIPot
and the macros
.Ic builtin ,
.Ic esyscmd ,
Modified: head/usr.bin/m4/main.c
==============================================================================
--- head/usr.bin/m4/main.c Mon Sep 9 14:56:06 2019 (r352064)
+++ head/usr.bin/m4/main.c Mon Sep 9 15:18:04 2019 (r352065)
@@ -1,4 +1,4 @@
-/* $OpenBSD: main.c,v 1.86 2015/11/03 16:21:47 deraadt Exp $ */
+/* $OpenBSD: main.c,v 1.87 2017/06/15 13:48:42 bcallah Exp $ */
/* $NetBSD: main.c,v 1.12 1997/02/08 23:54:49 cgd Exp $ */
/*-
@@ -81,6 +81,8 @@ char scommt[MAXCCHARS+1] = {SCOMMT}; /* start characte
char ecommt[MAXCCHARS+1] = {ECOMMT}; /* end character for comment */
int synch_lines = 0; /* line synchronisation for C preprocessor */
int prefix_builtins = 0; /* -P option to prefix builtin keywords */
+int error_warns = 0; /* -E option to make warnings exit_code = 1 */
+int fatal_warns = 0; /* -E -E option to make warnings fatal */
struct keyblk {
const char *knam; /* keyword name */
@@ -186,7 +188,7 @@ main(int argc, char *argv[])
outfile = NULL;
resizedivs(MAXOUT);
- while ((c = getopt(argc, argv, "gst:d:D:U:o:I:P")) != -1)
+ while ((c = getopt(argc, argv, "gst:d:D:EU:o:I:P")) != -1)
switch(c) {
case 'D': /* define something..*/
@@ -196,6 +198,12 @@ main(int argc, char *argv[])
if (*p)
*p++ = EOS;
dodefine(optarg, p);
+ break;
+ case 'E': /* like GNU m4 1.4.9+ */
+ if (error_warns == 0)
+ error_warns = 1;
+ else
+ fatal_warns = 1;
break;
case 'I':
addtoincludepath(optarg);
Modified: head/usr.bin/m4/misc.c
==============================================================================
--- head/usr.bin/m4/misc.c Mon Sep 9 14:56:06 2019 (r352064)
+++ head/usr.bin/m4/misc.c Mon Sep 9 15:18:04 2019 (r352065)
@@ -1,4 +1,4 @@
-/* $OpenBSD: misc.c,v 1.46 2015/12/07 14:12:46 espie Exp $ */
+/* $OpenBSD: misc.c,v 1.47 2017/06/15 13:48:42 bcallah Exp $ */
/* $NetBSD: misc.c,v 1.6 1995/09/28 05:37:41 tls Exp $ */
/*-
@@ -386,7 +386,7 @@ xstrdup(const char *s)
void
usage(void)
{
- fprintf(stderr, "usage: m4 [-gPs] [-Dname[=value]] [-d flags] "
+ fprintf(stderr, "usage: m4 [-EgPs] [-Dname[=value]] [-d flags] "
"[-I dirname] [-o filename]\n"
"\t[-t macro] [-Uname] [file ...]\n");
exit(1);
Modified: head/usr.bin/m4/tokenizer.l
==============================================================================
--- head/usr.bin/m4/tokenizer.l Mon Sep 9 14:56:06 2019 (r352064)
+++ head/usr.bin/m4/tokenizer.l Mon Sep 9 15:18:04 2019 (r352065)
@@ -1,6 +1,6 @@
%option nounput noinput
%{
-/* $OpenBSD: tokenizer.l,v 1.8 2012/04/12 17:00:11 espie Exp $ */
+/* $OpenBSD: tokenizer.l,v 1.9 2017/06/15 13:48:42 bcallah Exp $ */
/*
* Copyright (c) 2004 Marc Espie <espie at cvs.openbsd.org>
*
@@ -25,6 +25,7 @@
#include <stdint.h>
#include <limits.h>
+extern void m4_warnx(const char *, ...);
extern int mimic_gnu;
extern int32_t yylval;
@@ -72,7 +73,7 @@ number(void)
l = strtol(yytext, NULL, 0);
if (((l == LONG_MAX || l == LONG_MIN) && errno == ERANGE) ||
l > INT32_MAX || l < INT32_MIN) {
- fprintf(stderr, "m4: numeric overflow in expr: %s\n", yytext);
+ m4_warnx("numeric overflow in expr: %s", yytext);
}
return l;
}
@@ -88,7 +89,7 @@ parse_radix(void)
l = 0;
base = strtol(yytext+2, &next, 0);
if (base > 36 || next == NULL) {
- fprintf(stderr, "m4: error in number %s\n", yytext);
+ m4_warnx("error in number %s", yytext);
} else {
next++;
while (*next != 0) {
@@ -101,8 +102,7 @@ parse_radix(void)
d = *next - 'A' + 10;
}
if (d >= base) {
- fprintf(stderr,
- "m4: error in number %s\n", yytext);
+ m4_warnx("error in number %s", yytext);
return 0;
}
l = base * l + d;
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