|
 |
78f1eb |
From 14d26b44a1d7eee67837ec0ea8fb0368ac6fe33e Mon Sep 17 00:00:00 2001
|
|
|
78f1eb |
From: Tony Cook <tony@develop-help.com>
|
|
|
78f1eb |
Date: Tue, 20 Aug 2019 15:43:05 +1000
|
|
|
78f1eb |
Subject: [PATCH] (perl #134230) don't interpret 0x, 0b when numifying strings
|
|
|
78f1eb |
MIME-Version: 1.0
|
|
|
78f1eb |
Content-Type: text/plain; charset=UTF-8
|
|
|
78f1eb |
Content-Transfer-Encoding: 8bit
|
|
|
78f1eb |
|
|
|
78f1eb |
Signed-off-by: Petr Písař <ppisar@redhat.com>
|
|
|
78f1eb |
---
|
|
|
78f1eb |
numeric.c | 9 +++++++++
|
|
|
78f1eb |
t/op/int.t | 5 ++++-
|
|
|
78f1eb |
2 files changed, 13 insertions(+), 1 deletion(-)
|
|
|
78f1eb |
|
|
|
78f1eb |
diff --git a/numeric.c b/numeric.c
|
|
|
78f1eb |
index f5eadc8173..fae2eb3c6d 100644
|
|
|
78f1eb |
--- a/numeric.c
|
|
|
78f1eb |
+++ b/numeric.c
|
|
|
78f1eb |
@@ -1551,6 +1551,15 @@ Perl_my_atof3(pTHX_ const char* orig, NV* value, const STRLEN len)
|
|
|
78f1eb |
if ((endp = S_my_atof_infnan(aTHX_ s, negative, send, value)))
|
|
|
78f1eb |
return endp;
|
|
|
78f1eb |
|
|
|
78f1eb |
+ /* strtold() accepts 0x-prefixed hex and in POSIX implementations,
|
|
|
78f1eb |
+ 0b-prefixed binary numbers, which is backward incompatible
|
|
|
78f1eb |
+ */
|
|
|
78f1eb |
+ if ((len == 0 || len >= 2) && *s == '0' &&
|
|
|
78f1eb |
+ (isALPHA_FOLD_EQ(s[1], 'x') || isALPHA_FOLD_EQ(s[1], 'b'))) {
|
|
|
78f1eb |
+ *value = 0;
|
|
|
78f1eb |
+ return (char *)s+1;
|
|
|
78f1eb |
+ }
|
|
|
78f1eb |
+
|
|
|
78f1eb |
/* If the length is passed in, the input string isn't NUL-terminated,
|
|
|
78f1eb |
* and in it turns out the function below assumes it is; therefore we
|
|
|
78f1eb |
* create a copy and NUL-terminate that */
|
|
|
78f1eb |
diff --git a/t/op/int.t b/t/op/int.t
|
|
|
78f1eb |
index 7e936da68d..b730ab2672 100644
|
|
|
78f1eb |
--- a/t/op/int.t
|
|
|
78f1eb |
+++ b/t/op/int.t
|
|
|
78f1eb |
@@ -7,7 +7,7 @@ BEGIN {
|
|
|
78f1eb |
require Config;
|
|
|
78f1eb |
}
|
|
|
78f1eb |
|
|
|
78f1eb |
-plan 17;
|
|
|
78f1eb |
+plan 19;
|
|
|
78f1eb |
|
|
|
78f1eb |
# compile time evaluation
|
|
|
78f1eb |
|
|
|
78f1eb |
@@ -83,3 +83,6 @@ SKIP:
|
|
|
78f1eb |
cmp_ok($x, "==", int($x), "check $x == int($x)");
|
|
|
78f1eb |
}
|
|
|
78f1eb |
}
|
|
|
78f1eb |
+
|
|
|
78f1eb |
+is(1+"0x10", 1, "check string '0x' prefix not treated as hex");
|
|
|
78f1eb |
+is(1+"0b10", 1, "check string '0b' prefix not treated as binary");
|
|
|
78f1eb |
--
|
|
|
78f1eb |
2.21.0
|
|
|
78f1eb |
|