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v0.5.1
https://github.com/python/cpython
09 December 2020, 11:06:31 UTC
Revision 05455637f3ba9bacd459700f4feab783e5967d69 authored by Miss Islington (bot) on 26 March 2018, 20:14:09 UTC, committed by GitHub on 26 March 2018, 20:14:09 UTC 
bpo-32844: Fix a subprocess misredirection of a low fd (GH5689)
 

bpo-32844: subprocess: Fix a potential misredirection of a low fd to stderr.

When redirecting, subprocess attempts to achieve the following state:
each fd to be redirected to is less than or equal to the fd
it is redirected from, which is necessary because redirection
occurs in the ascending order of destination descriptors.
It fails to do so in a couple of corner cases,
for example, if 1 is redirected to 2 and 0 is closed in the parent.
(cherry picked from commit 0e7144b064a19493a146af94175a087b3888c37b)

Co-authored-by: Alexey Izbyshev <izbyshev@users.noreply.github.com>
1 parent c6147ac
Raw File
Tip revision: 05455637f3ba9bacd459700f4feab783e5967d69 authored by Miss Islington (bot) on 26 March 2018, 20:14:09 UTC
bpo-32844: Fix a subprocess misredirection of a low fd (GH5689)
Tip revision: 0545563
token.h 

/* Token types */
#ifndef Py_LIMITED_API
#ifndef Py_TOKEN_H
#define Py_TOKEN_H
#ifdef __cplusplus
extern "C" {
#endif

#undef TILDE   /* Prevent clash of our definition with system macro. Ex AIX, ioctl.h */

#define ENDMARKER       0
#define NAME            1
#define NUMBER          2
#define STRING          3
#define NEWLINE         4
#define INDENT          5
#define DEDENT          6
#define LPAR            7
#define RPAR            8
#define LSQB            9
#define RSQB            10
#define COLON           11
#define COMMA           12
#define SEMI            13
#define PLUS            14
#define MINUS           15
#define STAR            16
#define SLASH           17
#define VBAR            18
#define AMPER           19
#define LESS            20
#define GREATER         21
#define EQUAL           22
#define DOT             23
#define PERCENT         24
#define LBRACE          25
#define RBRACE          26
#define EQEQUAL         27
#define NOTEQUAL        28
#define LESSEQUAL       29
#define GREATEREQUAL    30
#define TILDE           31
#define CIRCUMFLEX      32
#define LEFTSHIFT       33
#define RIGHTSHIFT      34
#define DOUBLESTAR      35
#define PLUSEQUAL       36
#define MINEQUAL        37
#define STAREQUAL       38
#define SLASHEQUAL      39
#define PERCENTEQUAL    40
#define AMPEREQUAL      41
#define VBAREQUAL       42
#define CIRCUMFLEXEQUAL 43
#define LEFTSHIFTEQUAL  44
#define RIGHTSHIFTEQUAL 45
#define DOUBLESTAREQUAL 46
#define DOUBLESLASH     47
#define DOUBLESLASHEQUAL 48
#define AT              49
#define ATEQUAL         50
#define RARROW          51
#define ELLIPSIS        52
/* Don't forget to update the table _PyParser_TokenNames in tokenizer.c! */
#define OP              53
#define ERRORTOKEN      54
/* These aren't used by the C tokenizer but are needed for tokenize.py */
#define COMMENT         55
#define NL              56
#define ENCODING                57
#define N_TOKENS        58

/* Special definitions for cooperation with parser */

#define NT_OFFSET               256

#define ISTERMINAL(x)           ((x) < NT_OFFSET)
#define ISNONTERMINAL(x)        ((x) >= NT_OFFSET)
#define ISEOF(x)                ((x) == ENDMARKER)


PyAPI_DATA(const char *) _PyParser_TokenNames[]; /* Token names */
PyAPI_FUNC(int) PyToken_OneChar(int);
PyAPI_FUNC(int) PyToken_TwoChars(int, int);
PyAPI_FUNC(int) PyToken_ThreeChars(int, int, int);

#ifdef __cplusplus
}
#endif
#endif /* !Py_TOKEN_H */
#endif /* Py_LIMITED_API */
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