Add patches:

- replace sprintf with snprintf
- use calloc() to avoid malloc(n * m) overflows
- NetBSD PR 36831: In setfval(), ensure that arithmetic never yields a negative
  zero result.
- Restore the traditional (FreeBSD <= 2.x) behavior of trapping FPEs. With this
  patch we pass mawk's fpe_test.

PR:		125348
Submitted by:	"Pedro F. Giffuni" <pfgshield-freebsd@yahoo.com>

5 files changed, 139 insertions, 0 deletions

diff --git a/lang/nawk/Makefile b/lang/nawk/Makefile
index b27362d50e0f..fad4ffdace4c 100644
--- a/lang/nawk/Makefile
+++ b/lang/nawk/Makefile
@@ -8,6 +8,7 @@
 
 PORTNAME=	nawk
 PORTVERSION=	20071023
+PORTREVISION=	1
 CATEGORIES=	lang
 MASTER_SITES=	http://www.cs.princeton.edu/~bwk/btl.mirror/
 DISTNAME=	awk
diff --git a/lang/nawk/files/patch-b.c b/lang/nawk/files/patch-b.c
new file mode 100644
index 000000000000..6ed634861b0b
--- /dev/null
+++ b/lang/nawk/files/patch-b.c
@@ -0,0 +1,67 @@
+--- b.c.orig	2007-03-31 15:56:18.000000000 -0500
++++ b.c	2008-07-07 08:44:50.000000000 -0500
+@@ -84,8 +84,8 @@
+ 
+ 	if (setvec == 0) {	/* first time through any RE */
+ 		maxsetvec = MAXLIN;
+-		setvec = (int *) malloc(maxsetvec * sizeof(int));
+-		tmpset = (int *) malloc(maxsetvec * sizeof(int));
++		setvec = (int *) calloc(maxsetvec, sizeof(int));
++		tmpset = (int *) calloc(maxsetvec, sizeof(int));
+ 		if (setvec == 0 || tmpset == 0)
+ 			overflo("out of space initializing makedfa");
+ 	}
+@@ -137,7 +137,7 @@
+ 	f->accept = poscnt-1;	/* penter has computed number of positions in re */
+ 	cfoll(f, p1);	/* set up follow sets */
+ 	freetr(p1);
+-	if ((f->posns[0] = (int *) calloc(1, *(f->re[0].lfollow)*sizeof(int))) == NULL)
++	if ((f->posns[0] = (int *) calloc(*(f->re[0].lfollow), sizeof(int))) == NULL)
+ 			overflo("out of space in makedfa");
+ 	if ((f->posns[1] = (int *) calloc(1, sizeof(int))) == NULL)
+ 		overflo("out of space in makedfa");
+@@ -157,7 +157,7 @@
+ 	f->reset = 0;
+ 	k = *(f->re[0].lfollow);
+ 	xfree(f->posns[2]);			
+-	if ((f->posns[2] = (int *) calloc(1, (k+1)*sizeof(int))) == NULL)
++	if ((f->posns[2] = (int *) calloc(k+1, sizeof(int))) == NULL)
+ 		overflo("out of space in makeinit");
+ 	for (i=0; i <= k; i++) {
+ 		(f->posns[2])[i] = (f->re[0].lfollow)[i];
+@@ -357,7 +357,7 @@
+ 			setvec[i] = 0;
+ 		setcnt = 0;
+ 		follow(v);	/* computes setvec and setcnt */
+-		if ((p = (int *) calloc(1, (setcnt+1)*sizeof(int))) == NULL)
++		if ((p = (int *) calloc(setcnt+1, sizeof(int))) == NULL)
+ 			overflo("out of space building follow set");
+ 		f->re[info(v)].lfollow = p;
+ 		*p = setcnt;
+@@ -531,7 +531,7 @@
+ 			for (i = 2; i <= f->curstat; i++)
+ 				xfree(f->posns[i]);
+ 			k = *f->posns[0];			
+-			if ((f->posns[2] = (int *) calloc(1, (k+1)*sizeof(int))) == NULL)
++			if ((f->posns[2] = (int *) calloc(k+1, sizeof(int))) == NULL)
+ 				overflo("out of space in pmatch");
+ 			for (i = 0; i <= k; i++)
+ 				(f->posns[2])[i] = (f->posns[0])[i];
+@@ -588,7 +588,7 @@
+ 			for (i = 2; i <= f->curstat; i++)
+ 				xfree(f->posns[i]);
+ 			k = *f->posns[0];			
+-			if ((f->posns[2] = (int *) calloc(1, (k+1)*sizeof(int))) == NULL)
++			if ((f->posns[2] = (int *) calloc(k+1, sizeof(int))) == NULL)
+ 				overflo("out of state space");
+ 			for (i = 0; i <= k; i++)
+ 				(f->posns[2])[i] = (f->posns[0])[i];
+@@ -920,7 +920,7 @@
+ 	for (i = 0; i < NCHARS; i++)
+ 		f->gototab[f->curstat][i] = 0;
+ 	xfree(f->posns[f->curstat]);
+-	if ((p = (int *) calloc(1, (setcnt+1)*sizeof(int))) == NULL)
++	if ((p = (int *) calloc(setcnt+1, sizeof(int))) == NULL)
+ 		overflo("out of space in cgoto");
+ 
+ 	f->posns[f->curstat] = p;
diff --git a/lang/nawk/files/patch-lib.c b/lang/nawk/files/patch-lib.c
new file mode 100644
index 000000000000..242068fd485e
--- /dev/null
+++ b/lang/nawk/files/patch-lib.c
@@ -0,0 +1,29 @@
+--- lib.c.orig	2007-10-22 18:17:52.000000000 -0500
++++ lib.c	2008-07-07 09:38:58.000000000 -0500
+@@ -59,7 +59,7 @@
+ {
+ 	if ( (record = (char *) malloc(n)) == NULL
+ 	  || (fields = (char *) malloc(n+1)) == NULL
+-	  || (fldtab = (Cell **) malloc((nfields+1) * sizeof(Cell *))) == NULL
++	  || (fldtab = (Cell **) calloc((nfields+1), sizeof(Cell *))) == NULL
+ 	  || (fldtab[0] = (Cell *) malloc(sizeof(Cell))) == NULL )
+ 		FATAL("out of space for $0 and fields");
+ 	*fldtab[0] = dollar0;
+@@ -78,7 +78,7 @@
+ 		if (fldtab[i] == NULL)
+ 			FATAL("out of space in makefields %d", i);
+ 		*fldtab[i] = dollar1;
+-		sprintf(temp, "%d", i);
++		snprintf(temp, sizeof temp, "%d", i);
+ 		fldtab[i]->nval = tostring(temp);
+ 	}
+ }
+@@ -226,7 +226,7 @@
+ 	char *s, temp[50];
+ 	extern Array *ARGVtab;
+ 
+-	sprintf(temp, "%d", n);
++	snprintf(temp, sizeof temp, "%d", n);
+ 	x = setsymtab(temp, "", 0.0, STR, ARGVtab);
+ 	s = getsval(x);
+ 	   dprintf( ("getargv(%d) returns |%s|\n", n, s) );
diff --git a/lang/nawk/files/patch-main.c b/lang/nawk/files/patch-main.c
new file mode 100644
index 000000000000..216f75e8d550
--- /dev/null
+++ b/lang/nawk/files/patch-main.c
@@ -0,0 +1,19 @@
+--- main.c.orig	2007-05-01 16:05:28.000000000 -0500
++++ main.c	2008-07-08 15:33:37.000000000 -0500
+@@ -34,6 +34,8 @@
+ #include "awk.h"
+ #include "ytab.h"
+ 
++#include <fenv.h>
++
+ extern	char	**environ;
+ extern	int	nfields;
+ 
+@@ -67,6 +69,7 @@
+ 		exit(1);
+ 	}
+ 	signal(SIGFPE, fpecatch);
++	feenableexcept(FE_DIVBYZERO|FE_INEXACT|FE_OVERFLOW);
+ 	yyin = NULL;
+ 	symtab = makesymtab(NSYMTAB/NSYMTAB);
+ 	while (argc > 1 && argv[1][0] == '-' && argv[1][1] != '\0') {
diff --git a/lang/nawk/files/patch-tran.c b/lang/nawk/files/patch-tran.c
new file mode 100644
index 000000000000..94ae657a6eca
--- /dev/null
+++ b/lang/nawk/files/patch-tran.c
@@ -0,0 +1,23 @@
+diff -u -p -r1.6 -r1.9.10.1
+--- tran.c.orig	2005/07/03 15:18:11	1.6
++++ tran.c	2007/11/06 23:07:52	1.9.10.1
+@@ -210,7 +210,10 @@ Cell *setsymtab(const char *n, const cha
+ 	int h;
+ 	Cell *p;
+ 
+-	if (n != NULL && (p = lookup(n, tp)) != NULL) {
++	if (n == NULL)
++		n = "";
++
++	if ((p = lookup(n, tp)) != NULL) {
+ 		   dprintf( ("setsymtab found %p: n=%s s=\"%s\" f=%g t=%o\n",
+ 			p, NN(p->nval), NN(p->sval), p->fval, p->tval) );
+ 		return(p);
+@@ -282,6 +285,7 @@ Awkfloat setfval(Cell *vp, Awkfloat f)	/
+ {
+ 	int fldno;
+ 
++	f += 0.0;		/* normalise negative zero to positive zero */
+ 	if ((vp->tval & (NUM | STR)) == 0) 
+ 		funnyvar(vp, "assign to");
+ 	if (isfld(vp)) {