mirror of
https://github.com/ruby/ruby.git
synced 2025-08-15 13:39:04 +02:00
060a71d4e7
The size of `struct parser_params` is 8 bytes difference in `ripper_s_allocate` and `rb_ruby_parser_allocate` when the universal parser is
enabled.
This causes a situation where `*r->p` is not fully initialized in `ripper_s_allocate` as shown below.
```console
(gdb) p *r->p
$2 = {heap = 0x0, lval = 0x0, yylloc = 0x0, lex = {strterm = 0x0, gets = 0x0, input = 0, string_buffer = {head = 0x0, last = 0x0}, lastlin
e = 0x0,
nextline = 0x0, pbeg = 0x0, pcur = 0x0, pend = 0x0, ptok = 0x0, gets_ = {ptr = 0, call = 0x0}, state = EXPR_NONE, paren_nest = 0, lpar
_seen = 0,
debug = 0, has_shebang = 0, token_seen = 0, token_info_enabled = 0, error_p = 0, cr_seen = 0, value = 0, result = 0, parsing_thread = 0, s_value = 0,
s_lvalue = 0, s_value_stack = 2097}
````
This seems to cause `double free or corruption (!prev)` and SEGV.
So, fixing this by introduce `rb_ripper_parser_params_allocate` and `rb_ruby_parser_config` functions for Ripper, and `struct parser_params` same size is returned.
92 lines
3.4 KiB
C
92 lines
3.4 KiB
C
#ifndef INTERNAL_RUBY_PARSE_H
|
|
#define INTERNAL_RUBY_PARSE_H
|
|
|
|
#include "internal.h"
|
|
#include "internal/bignum.h"
|
|
#include "internal/compilers.h"
|
|
#include "internal/complex.h"
|
|
#include "internal/imemo.h"
|
|
#include "internal/rational.h"
|
|
#include "rubyparser.h"
|
|
#include "vm.h"
|
|
|
|
RUBY_SYMBOL_EXPORT_BEGIN
|
|
#ifdef UNIVERSAL_PARSER
|
|
const rb_parser_config_t *rb_ruby_parser_config(void);
|
|
rb_parser_t *rb_parser_params_allocate(void);
|
|
rb_parser_t *rb_parser_params_new(void);
|
|
#endif
|
|
VALUE rb_parser_set_context(VALUE, const struct rb_iseq_struct *, int);
|
|
VALUE rb_parser_new(void);
|
|
rb_ast_t *rb_parser_compile_string_path(VALUE vparser, VALUE fname, VALUE src, int line);
|
|
VALUE rb_str_new_parser_string(rb_parser_string_t *str);
|
|
|
|
VALUE rb_node_str_string_val(const NODE *);
|
|
VALUE rb_node_sym_string_val(const NODE *);
|
|
VALUE rb_node_dstr_string_val(const NODE *);
|
|
VALUE rb_node_regx_string_val(const NODE *);
|
|
VALUE rb_node_dregx_string_val(const NODE *);
|
|
VALUE rb_node_line_lineno_val(const NODE *);
|
|
VALUE rb_node_file_path_val(const NODE *);
|
|
VALUE rb_node_encoding_val(const NODE *);
|
|
VALUE rb_node_const_decl_val(const NODE *node);
|
|
|
|
VALUE rb_node_integer_literal_val(const NODE *);
|
|
VALUE rb_node_float_literal_val(const NODE *);
|
|
VALUE rb_node_rational_literal_val(const NODE *);
|
|
VALUE rb_node_imaginary_literal_val(const NODE *);
|
|
RUBY_SYMBOL_EXPORT_END
|
|
|
|
VALUE rb_parser_end_seen_p(VALUE);
|
|
VALUE rb_parser_encoding(VALUE);
|
|
VALUE rb_parser_set_yydebug(VALUE, VALUE);
|
|
void rb_parser_set_options(VALUE, int, int, int, int);
|
|
void *rb_parser_load_file(VALUE parser, VALUE name);
|
|
void rb_parser_set_script_lines(VALUE vparser, VALUE lines_array);
|
|
void rb_parser_error_tolerant(VALUE vparser);
|
|
void rb_parser_keep_tokens(VALUE vparser);
|
|
|
|
rb_ast_t *rb_parser_compile_string(VALUE, const char*, VALUE, int);
|
|
rb_ast_t *rb_parser_compile_file_path(VALUE vparser, VALUE fname, VALUE input, int line);
|
|
rb_ast_t *rb_parser_compile_generic(VALUE vparser, VALUE (*lex_gets)(VALUE, int), VALUE fname, VALUE input, int line);
|
|
|
|
enum lex_state_bits {
|
|
EXPR_BEG_bit, /* ignore newline, +/- is a sign. */
|
|
EXPR_END_bit, /* newline significant, +/- is an operator. */
|
|
EXPR_ENDARG_bit, /* ditto, and unbound braces. */
|
|
EXPR_ENDFN_bit, /* ditto, and unbound braces. */
|
|
EXPR_ARG_bit, /* newline significant, +/- is an operator. */
|
|
EXPR_CMDARG_bit, /* newline significant, +/- is an operator. */
|
|
EXPR_MID_bit, /* newline significant, +/- is an operator. */
|
|
EXPR_FNAME_bit, /* ignore newline, no reserved words. */
|
|
EXPR_DOT_bit, /* right after `.', `&.' or `::', no reserved words. */
|
|
EXPR_CLASS_bit, /* immediate after `class', no here document. */
|
|
EXPR_LABEL_bit, /* flag bit, label is allowed. */
|
|
EXPR_LABELED_bit, /* flag bit, just after a label. */
|
|
EXPR_FITEM_bit, /* symbol literal as FNAME. */
|
|
EXPR_MAX_STATE
|
|
};
|
|
/* examine combinations */
|
|
enum lex_state_e {
|
|
#define DEF_EXPR(n) EXPR_##n = (1 << EXPR_##n##_bit)
|
|
DEF_EXPR(BEG),
|
|
DEF_EXPR(END),
|
|
DEF_EXPR(ENDARG),
|
|
DEF_EXPR(ENDFN),
|
|
DEF_EXPR(ARG),
|
|
DEF_EXPR(CMDARG),
|
|
DEF_EXPR(MID),
|
|
DEF_EXPR(FNAME),
|
|
DEF_EXPR(DOT),
|
|
DEF_EXPR(CLASS),
|
|
DEF_EXPR(LABEL),
|
|
DEF_EXPR(LABELED),
|
|
DEF_EXPR(FITEM),
|
|
EXPR_VALUE = EXPR_BEG,
|
|
EXPR_BEG_ANY = (EXPR_BEG | EXPR_MID | EXPR_CLASS),
|
|
EXPR_ARG_ANY = (EXPR_ARG | EXPR_CMDARG),
|
|
EXPR_END_ANY = (EXPR_END | EXPR_ENDARG | EXPR_ENDFN),
|
|
EXPR_NONE = 0
|
|
};
|
|
|
|
#endif /* INTERNAL_RUBY_PARSE_H */
|