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Raise ArgumentError if IO.read is provided negative offset

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Fixes [Bug #19380]
This commit is contained in:
Jeremy Evans 2023-02-10 10:33:53 -08:00
parent 836e9a192b
commit 6c60006de5
Notes: git 2023-03-24 19:29:23 +00:00
3 changed files with 19 additions and 3 deletions
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4
io.c
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@ -12125,9 +12125,13 @@ static VALUE
rb_io_s_read(int argc, VALUE *argv, VALUE io)
{
VALUE opt, offset;
long off;
struct foreach_arg arg;
argc = rb_scan_args(argc, argv, "13:", NULL, NULL, &offset, NULL, &opt);
if (!NIL_P(offset) && (off = NUM2LONG(offset)) < 0) {
rb_raise(rb_eArgError, "negative offset %ld given", off);
}
open_key_args(io, argc, argv, opt, &arg);
if (NIL_P(arg.io)) return Qnil;
if (!NIL_P(offset)) {