From ffd0820ab317542f8780aac475da590a4bdbc7a8 Mon Sep 17 00:00:00 2001
From: Jeremy Evans <code@jeremyevans.net>
Date: Tue, 24 Sep 2019 20:59:12 -0700
Subject: Deprecate taint/trust and related methods, and make the methods
 no-ops

This removes the related tests, and puts the related specs behind
version guards.  This affects all code in lib, including some
libraries that may want to support older versions of Ruby.
---
 io.c | 8 --------
 1 file changed, 8 deletions(-)

(limited to 'io.c')

diff --git a/io.c b/io.c
index 47d37d121a..63d8172e07 100644
--- a/io.c
+++ b/io.c
@@ -2525,7 +2525,6 @@ remain_size(rb_io_t *fptr)
 static VALUE
 io_enc_str(VALUE str, rb_io_t *fptr)
 {
-    OBJ_TAINT(str);
     rb_enc_associate(str, io_read_encoding(fptr));
     return str;
 }
@@ -2655,7 +2654,6 @@ io_shift_cbuf(rb_io_t *fptr, int len, VALUE *strp)
 	else {
 	    rb_str_cat(str, fptr->cbuf.ptr+fptr->cbuf.off, len);
 	}
-	OBJ_TAINT(str);
 	rb_enc_associate(str, fptr->encs.enc);
     }
     fptr->cbuf.off += len;
@@ -2820,7 +2818,6 @@ io_getpartial(int argc, VALUE *argv, VALUE io, int no_exception, int nonblock)
     }
 
     shrinkable = io_setstrbuf(&str, len);
-    OBJ_TAINT(str);
 
     GetOpenFile(io, fptr);
     rb_io_check_byte_readable(fptr);
@@ -2963,7 +2960,6 @@ io_read_nonblock(rb_execution_context_t *ec, VALUE io, VALUE length, VALUE str,
     }
 
     shrinkable = io_setstrbuf(&str, len);
-    OBJ_TAINT(str);
     rb_bool_expected(ex, "exception");
 
     GetOpenFile(io, fptr);
@@ -3150,7 +3146,6 @@ io_read(int argc, VALUE *argv, VALUE io)
     }
 #endif
     if (n == 0) return Qnil;
-    OBJ_TAINT(str);
 
     return str;
 }
@@ -5185,7 +5180,6 @@ rb_io_sysread(int argc, VALUE *argv, VALUE io)
     if (n == 0 && ilen > 0) {
 	rb_eof_error();
     }
-    OBJ_TAINT(str);
 
     return str;
 }
@@ -5269,7 +5263,6 @@ rb_io_pread(int argc, VALUE *argv, VALUE io)
     if (n == 0 && arg.count > 0) {
 	rb_eof_error();
     }
-    OBJ_TAINT(str);
 
     return str;
 }
@@ -7088,7 +7081,6 @@ check_pipe_command(VALUE filename_or_command)
 
     if (rb_enc_ascget(s, e, &chlen, rb_enc_get(filename_or_command)) == '|') {
         VALUE cmd = rb_str_new(s+chlen, l-chlen);
-        OBJ_INFECT(cmd, filename_or_command);
         return cmd;
     }
     return Qnil;
-- 
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