ref: 8c868344b207fbcaee4622fb6c0b97d1bd5c79a9
parent: 6b522a0b1f8559a78341a3c7163772b2f41d9a54
author: gardhr <24468810+gardhr@users.noreply.github.com>
date: Sun Nov 24 09:55:19 EST 2019
Issue 114: Allow compile time limits to be configured.
--- a/jsdump.c
+++ b/jsdump.c
@@ -799,7 +799,7 @@
switch (c) {case OP_INTEGER:
- printf(" %d", (*p++) - 32768);+ printf(" %ld", (long)((*p++) - 32768));break;
case OP_NUMBER:
printf(" %.9g", F->numtab[*p++]);@@ -840,7 +840,7 @@
case OP_JFALSE:
case OP_JCASE:
case OP_TRY:
- printf(" %d", *p++);+ printf(" %ld", (long)*p++);break;
}
--- a/jsi.h
+++ b/jsi.h
@@ -69,14 +69,29 @@
/* Limits */
+#ifndef JS_STACKSIZE
#define JS_STACKSIZE 256 /* value stack size */
+#endif
+#ifndef JS_ENVLIMIT
#define JS_ENVLIMIT 64 /* environment stack size */
+#endif
+#ifndef JS_TRYLIMIT
#define JS_TRYLIMIT 64 /* exception stack size */
+#endif
+#ifndef JS_GCLIMIT
#define JS_GCLIMIT 10000 /* run gc cycle every N allocations */
+#endif
+#ifndef JS_ASTLIMIT
#define JS_ASTLIMIT 100 /* max nested expressions */
+#endif
/* instruction size -- change to int if you get integer overflow syntax errors */
+
+#ifdef JS_INSTRUCTION
+typedef JS_INSTRUCTION js_Instruction;
+#else
typedef unsigned short js_Instruction;
+#endif
/* String interning */
--- a/regexp.c
+++ b/regexp.c
@@ -14,9 +14,21 @@
#define nelem(a) (int)(sizeof (a) / sizeof (a)[0])
#define REPINF 255
+#ifndef MAXSUB
#define MAXSUB REG_MAXSUB
+#endif
+#ifndef MAXPROG
#define MAXPROG (32 << 10)
+#endif
+#ifndef MAXREC
#define MAXREC 1024
+#endif
+#ifndef MAXSPAN
+#define MAXSPAN 64
+#endif
+#ifndef MAXCLASS
+#define MAXCLASS 16
+#endif
typedef struct Reclass Reclass;
typedef struct Renode Renode;
@@ -25,7 +37,7 @@
struct Reclass {Rune *end;
- Rune spans[64];
+ Rune spans[MAXSPAN];
};
struct Reprog {@@ -32,7 +44,7 @@
Reinst *start, *end;
int flags;
int nsub;
- Reclass cclass[16];
+ Reclass cclass[MAXCLASS];
};
struct cstate {@@ -194,7 +206,7 @@
{if (a > b)
die(g, "invalid character class range");
- if (g->yycc->end + 2 == g->yycc->spans + nelem(g->yycc->spans))
+ if (g->yycc->end + 2 >= g->yycc->spans + nelem(g->yycc->spans))
die(g, "too many character class ranges");
*g->yycc->end++ = a;
*g->yycc->end++ = b;