avoid changing deliver_homw

[users/jgh/exim.git] / src / src / setenv.c

diff --git a/src/src/setenv.c b/src/src/setenv.c
index eefbec09b36c3a1789ae9b91f35898f66f8b8c89..90e679304f67c7240365bc51bc58ecde68cc49c3 100644 (file)
--- a/src/src/setenv.c
+++ b/src/src/setenv.c
@@ -2,30 +2,30 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) Michael Haardt 2015 */
-/* Copyright (c) Jeremy Harris 2015 */
+/* Copyright (c) Michael Haardt 2015
+ * Copyright (c) Jeremy Harris 2015 - 2016
+ * Copyright (c) The Exim Maintainers 2016 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 /* This module provides (un)setenv routines for those environments
-lacking them in libraries. */
+lacking them in libraries. It is #include'd by OS/os.c-foo files. */
 
 
-static int
+int
 setenv(const char * name, const char * val, int overwrite)
 {
 uschar * s;
 if (Ustrchr(name, '=')) return -1;
 if (overwrite || !getenv(name))
-  putenv(CS string_copy_malloc(string_sprintf("%s=%s", name, val)));
+  putenv(CS string_copy_perm(string_sprintf("%s=%s", name, val), FALSE));
 return 0;
 }
 
-static int
+int
 unsetenv(const char *name)
 {
 size_t len;
 const char * end;
-char ** e;
 extern char ** environ;
 
 if (!name)
@@ -43,7 +43,7 @@ len = end - name;
 /* Find name in environment and move remaining variables down.
 Do not early-out in case there are duplicate names. */
 
-for (e = environ; *e; e++)
+for (char ** e = environ; *e; e++)
   if (strncmp(*e, name, len) == 0 && (*e)[len] == '=')
     {
     char ** sp = e;