diff options
| author | Ken Brown <kbrown@cornell.edu> | 2018-06-06 18:45:55 +0300 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2018-06-07 10:42:36 +0300 |
| commit | 9234545e3d84a873e1c1a6faff28cfb55320a248 (patch) | |
| tree | dec699754881be8dcbaadc9a4d8d527765b130b9 /winsup/cygwin/pinfo.cc | |
| parent | 1ecbb8d7b796b980db120d81f625d206c6a728da (diff) | |
Cygwin: Allow the environment pointer to be NULL
Following glibc, interpret this as meaning the environment is empty.
Diffstat (limited to 'winsup/cygwin/pinfo.cc')
| -rw-r--r-- | winsup/cygwin/pinfo.cc | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/winsup/cygwin/pinfo.cc b/winsup/cygwin/pinfo.cc index e4eef8b3c..6b6986c9e 100644 --- a/winsup/cygwin/pinfo.cc +++ b/winsup/cygwin/pinfo.cc @@ -677,11 +677,12 @@ commune_process (void *arg) sigproc_printf ("processing PICOM_ENVIRON"); unsigned n = 0; char **env = cur_environ (); - for (char **e = env; *e; e++) - n += strlen (*e) + 1; + if (env) + for (char **e = env; *e; e++) + n += strlen (*e) + 1; if (!WritePipeOverlapped (tothem, &n, sizeof n, &nr, 1000L)) sigproc_printf ("WritePipeOverlapped sizeof argv failed, %E"); - else + else if (env) for (char **e = env; *e; e++) if (!WritePipeOverlapped (tothem, *e, strlen (*e) + 1, &nr, 1000L)) { |