aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator/sys/win32/sys_env.c
diff options
context:
space:
mode:
Diffstat (limited to 'erts/emulator/sys/win32/sys_env.c')
-rw-r--r--erts/emulator/sys/win32/sys_env.c39
1 files changed, 29 insertions, 10 deletions
diff --git a/erts/emulator/sys/win32/sys_env.c b/erts/emulator/sys/win32/sys_env.c
index 754f4c6e4c..21ef71ad9a 100644
--- a/erts/emulator/sys/win32/sys_env.c
+++ b/erts/emulator/sys/win32/sys_env.c
@@ -1,18 +1,19 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 2002-2012. All Rights Reserved.
+ * Copyright Ericsson AB 2002-2016. All Rights Reserved.
*
- * The contents of this file are subject to the Erlang Public License,
- * Version 1.1, (the "License"); you may not use this file except in
- * compliance with the License. You should have received a copy of the
- * Erlang Public License along with this software. If not, it can be
- * retrieved online at http://www.erlang.org/.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
*
- * Software distributed under the License is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- * the License for the specific language governing rights and limitations
- * under the License.
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
*
* %CopyrightEnd%
*/
@@ -141,6 +142,24 @@ void fini_getenv_state(GETENV_STATE *state)
erts_smp_rwmtx_runlock(&environ_rwmtx);
}
+int erts_sys_unsetenv(char *key)
+{
+ int res = 0;
+ WCHAR *wkey = (WCHAR *) key;
+
+ SetLastError(0);
+ erts_smp_rwmtx_rlock(&environ_rwmtx);
+ GetEnvironmentVariableW(wkey,
+ NULL,
+ 0);
+ if (GetLastError() != ERROR_ENVVAR_NOT_FOUND) {
+ res = (SetEnvironmentVariableW(wkey,
+ NULL) ? 0 : 1);
+ }
+ erts_smp_rwmtx_runlock(&environ_rwmtx);
+ return res;
+}
+
char*
win_build_environment(char* new_env)
{