* io.c (rb_io_s_sysopen): preserve path in the buffer allocated by

ALLOCA_N() to prevent modification.  [ruby-dev:24438]

* io.c (rb_io_mode_flags): preserve append mode flag.
  [ruby-dev:24436]

* io.c (rb_io_modenum_mode): do not use external output buffer.

* string.c (rb_str_justify): differ pointer retrieval to prevent
  padding string modification.  [ruby-dev:24434]

* range.c (range_each_func): allow func to terminate loop by
  returning RANGE_EACH_BREAK.

* range.c (member_i): use RANGE_EACH_BREAK. [ruby-talk:114959]

* marshal.c (r_byte): retrieve pointer from string value for each
  time.  [ruby-dev:24404]

* marshal.c (r_bytes0): ditto.

* enum.c (sort_by_i): re-entrance check added.  [ruby-dev:24399]

* io.c (io_read): should freeze all reading buffer.
  [ruby-dev:24400]

* string.c (rb_str_sum): should use bignums when bits is greater
  than or equals to sizeof(long)*CHAR_BITS. [ruby-dev:24395]

* eval.c (specific_eval): defer pointer retrieval to prevent
  unsafe sourcefile string modification.  [ruby-dev:24382]

* eval.c (specific_eval): defer pointer retrieval to prevent
  unsafe sourcefile string modification.  [ruby-dev:24382]

* string.c (rb_str_sum): wrong cast caused wrong result.
  [ruby-dev:24385]

* enum.c (enum_sort_by): hide temporary array from
  ObjectSpace.each_object.  [ruby-dev:24386]

* string.c (rb_str_sum): check was done with false pointer.
  [ruby-dev:24383]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@7003 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

rubyio.h

@@ -29,6 +29,7 @@ typedef struct OpenFile {
 #define FMODE_READABLE  1
 #define FMODE_WRITABLE  2
 #define FMODE_READWRITE 3
+#define FMODE_APPEND   64
 #define FMODE_BINMODE   4
 #define FMODE_SYNC      8
 #define FMODE_WBUF     16