Fixed integer-overflow in ToInt32().

xeioex · xeioex · commit 3457c71e2e45 · 2021-05-24T14:17:59.000Z
error: negation of -2147483648 cannot be represented in type 'int32_t'.

Found by OSS-Fuzz.
diff --git a/src/njs_number.h b/src/njs_number.h
@@ -76,7 +76,7 @@ njs_number_to_integer(double num)
 njs_inline int32_t
 njs_number_to_int32(double num)
 {
-    int32_t           r;
+    uint32_t          r;
     uint64_t          v;
     njs_int_t         exp;
     njs_diyfp_conv_t  conv;

Original file line number	Diff line number	Diff line change
`@@ -76,7 +76,7 @@ njs_number_to_integer(double num)`
`76`	`76`	`njs_inline int32_t`
`77`	`77`	`njs_number_to_int32(double num)`
`78`	`78`	`{`
`79`		`- int32_t r;`
	`79`	`+ uint32_t r;`
`80`	`80`	`uint64_t v;`
`81`	`81`	`njs_int_t exp;`
`82`	`82`	`njs_diyfp_conv_t conv;`