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integer arguments were not coerced to strings for the `:' operator.

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bad things: core dumps, etc. will happen if integer values make it
up the parse tree.
This commit is contained in:
jtc 1993-07-20 00:29:41 +00:00
parent 0a08244e8c
commit 476e1b5964
1 changed files with 5 additions and 7 deletions
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12
bin/expr/expr.y
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@ -2,7 +2,7 @@
/* Written by Pace Willisson (pace@blitz.com)
* and placed in the public domain
*
* $Header: /cvsroot/src/bin/expr/expr.y,v 1.6 1993/06/14 19:59:07 jtc Exp $
* $Header: /cvsroot/src/bin/expr/expr.y,v 1.7 1993/07/20 00:29:41 jtc Exp $
*/
#include <stdio.h>
#include <stdlib.h>
@ -542,16 +542,14 @@ struct val *a, *b;
regmatch_t rm[SE_MAX];
char errbuf[256];
int eval;
char *newpat;
struct val *v;
/* patterns are anchored to the beginning of the line */
newpat = malloc (strlen (b->u.s) + 2);
strcpy (newpat, "^");
strcat (newpat, b->u.s);
/* coerce to both arguments to strings */
to_string(a);
to_string(b);
/* compile regular expression */
if ((eval = regcomp (&rp, newpat, 0)) != 0) {
if ((eval = regcomp (&rp, b->u.s, 0)) != 0) {
regerror (eval, &rp, errbuf, sizeof(errbuf));
fprintf (stderr, "expr: %s\n", errbuf);
exit (2);