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| author | Paul Sokolovsky <pfalcon@users.sourceforge.net> | 2015-11-14 17:12:04 +0200 |
|---|---|---|
| committer | Paul Sokolovsky <pfalcon@users.sourceforge.net> | 2015-11-14 17:12:04 +0200 |
| commit | ec314c951dbc17836f44b9fc2a1462940c338c27 (patch) | |
| tree | c6b623a7502fdc2609c8d2d66286f97fecb05fef /unix/modos.c | |
| parent | 16d42368a64cca3927ceac26b33015f73d501427 (diff) | |
| download | micropython-ec314c951dbc17836f44b9fc2a1462940c338c27.tar.gz micropython-ec314c951dbc17836f44b9fc2a1462940c338c27.zip | |
unix/modos: getenv(): Handle non-existing envvar correctly.
Diffstat (limited to 'unix/modos.c')
| -rw-r--r-- | unix/modos.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/unix/modos.c b/unix/modos.c index 94f9a5723d..b4af796123 100644 --- a/unix/modos.c +++ b/unix/modos.c @@ -137,6 +137,9 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_os_system_obj, mod_os_system); STATIC mp_obj_t mod_os_getenv(mp_obj_t var_in) { const char *s = getenv(mp_obj_str_get_str(var_in)); + if (s == NULL) { + return mp_const_none; + } return mp_obj_new_str(s, strlen(s), false); } STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_os_getenv_obj, mod_os_getenv); |