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(Merge 3.3) pythonrun.c: fix Py_GetPythonHome(), use Py_ARRAY_LENGTH() to get

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the size of the env_home buffer, not PATH_MAX+1. env_home is declared using
MAXPATHLEN+1, and PATH_MAX is not declared on IRIX.
This commit is contained in:
Victor Stinner 2013-11-15 17:12:14 +01:00
commit b5a7a0aa3f
1 changed files with 3 additions and 2 deletions
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Python/pythonrun.c
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@ -900,8 +900,9 @@ Py_GetPythonHome(void)
if (home == NULL && !Py_IgnoreEnvironmentFlag) { if (home == NULL && !Py_IgnoreEnvironmentFlag) {
char* chome = Py_GETENV("PYTHONHOME"); char* chome = Py_GETENV("PYTHONHOME");
if (chome) { if (chome) {
size_t r = mbstowcs(env_home, chome, PATH_MAX+1); size_t size = Py_ARRAY_LENGTH(env_home);
if (r != (size_t)-1 && r <= PATH_MAX) size_t r = mbstowcs(env_home, chome, size);
if (r != (size_t)-1 && r < size)
home = env_home; home = env_home;
} }