Mercurial > cpython-lru_cache-weakref

comparison Python/sysmodule.c @ 61788:c2917ac5d526 legacy-trunk

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Issue #5753: A new C API function, :cfunc:`PySys_SetArgvEx`, allows embedders of the interpreter to set sys.argv without also modifying sys.path. This helps fix `CVE-2008-5983 <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5983>`_.
author Antoine Pitrou <solipsis@pitrou.net>
date Fri, 21 May 2010 17:12:38 +0000
parents fd25030223b0
children b36cb4602e21
comparison
equal deleted inserted replaced
61778:6fe260bc0987 61788:c2917ac5d526
1647 } 1647 }
1648 return av; 1648 return av;
1649 } 1649 }
1650 1650
1651 void 1651 void
1652 PySys_SetArgv(int argc, char **argv) 1652 PySys_SetArgvEx(int argc, char **argv, int updatepath)
1653 { 1653 {
1654 #if defined(HAVE_REALPATH) 1654 #if defined(HAVE_REALPATH)
1655 char fullpath[MAXPATHLEN]; 1655 char fullpath[MAXPATHLEN];
1656 #elif defined(MS_WINDOWS) && !defined(MS_WINCE) 1656 #elif defined(MS_WINDOWS) && !defined(MS_WINCE)
1657 char fullpath[MAX_PATH]; 1657 char fullpath[MAX_PATH];
1660 PyObject *path = PySys_GetObject("path"); 1660 PyObject *path = PySys_GetObject("path");
1661 if (av == NULL) 1661 if (av == NULL)
1662 Py_FatalError("no mem for sys.argv"); 1662 Py_FatalError("no mem for sys.argv");
1663 if (PySys_SetObject("argv", av) != 0) 1663 if (PySys_SetObject("argv", av) != 0)
1664 Py_FatalError("can't assign sys.argv"); 1664 Py_FatalError("can't assign sys.argv");
1665 if (path != NULL) { 1665 if (updatepath && path != NULL) {
1666 char *argv0 = argv[0]; 1666 char *argv0 = argv[0];
1667 char *p = NULL; 1667 char *p = NULL;
1668 Py_ssize_t n = 0; 1668 Py_ssize_t n = 0;
1669 PyObject *a; 1669 PyObject *a;
1670 #ifdef HAVE_READLINK 1670 #ifdef HAVE_READLINK
1750 Py_DECREF(a); 1750 Py_DECREF(a);
1751 } 1751 }
1752 Py_DECREF(av); 1752 Py_DECREF(av);
1753 } 1753 }
1754 1754
1755 void
1756 PySys_SetArgv(int argc, char **argv)
1757 {
1758 PySys_SetArgvEx(argc, argv, 1);
1759 }
1760
1755 1761
1756 /* APIs to write to sys.stdout or sys.stderr using a printf-like interface. 1762 /* APIs to write to sys.stdout or sys.stderr using a printf-like interface.
1757 Adapted from code submitted by Just van Rossum. 1763 Adapted from code submitted by Just van Rossum.
1758 1764
1759 PySys_WriteStdout(format, ...) 1765 PySys_WriteStdout(format, ...)