core: New API functions gpgrt_getenv and gpgrt_setenv.

* src/gpg-error.h.in (gpgrt_getenv, gpgrt_setenv): New.
(gpgrt_unsetenv): New macro.
* src/gpg-error.vers, src/gpg-error.def.in: Add them.
* src/visibility.c (gpgrt_getenv, gpgrt_setenv): New.
* src/visibility.h: Add them.
* src/sysutils.c: Include string.h and on Windows windows.h.
(_gpgrt_getenv): New.
(_gpgrt_setenv): New.
--

These functions are wrappers to cope with Windows problems.  The code
is similar to what we have in GnuPG but not identical.

Requires better testing.

Signed-off-by: Werner Koch <wk@gnupg.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/gpg-error.vers b/src/gpg-error.vers
index 074981b..661222c 100644
--- a/src/gpg-error.vers
+++ b/src/gpg-error.vers
@@ -163,6 +163,9 @@ GPG_ERROR_1.0 {
     gpgrt_strdup;
     gpgrt_strconcat;
 
+    gpgrt_getenv;
+    gpgrt_setenv;
+
   local:
     *;
 };