diff options
Diffstat (limited to 'string.c')
-rw-r--r-- | string.c | 9 |
1 files changed, 9 insertions, 0 deletions
@@ -1998,14 +1998,23 @@ rb_str_concat(VALUE str1, VALUE str2) unsigned int lc; if (FIXNUM_P(str2)) { + if ((int)str2 < 0) + rb_raise(rb_eRangeError, "negative argument"); lc = FIX2UINT(str2); } else if (TYPE(str2) == T_BIGNUM) { + if (!RBIGNUM_SIGN(str2)) + rb_raise(rb_eRangeError, "negative argument"); lc = NUM2UINT(str2); } else { return rb_str_append(str1, str2); } +#if SIZEOF_INT < SIZEOF_VALUE + if ((VALUE)lc > UINT_MAX) { + rb_raise(rb_eRangeError, "%"PRIuVALUE" out of char range", lc); + } +#endif { rb_encoding *enc = STR_ENC_GET(str1); long pos = RSTRING_LEN(str1); |