ash: move code from setup_environment()

ash calls setup_environment() but only uses a small amount of its
functionality.  Moving the code into ash itself means we don't
need to customise setup_environment() for WIN32 and can remove
it from the build.

1 files changed, 6 insertions, 3 deletions

diff --git a/shell/ash.c b/shell/ash.c
index 0b41e7931..3bbfbd694 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -14584,10 +14584,13 @@ init(void)
                                 }
                         }
 
-                        /* some initialisation normally performed at login */
+                        /* Initialise some variables normally set at login, but
+                         * only if someone hasn't already set them. */
                         pw = xgetpwuid(getuid());
-                        setup_environment(pw->pw_shell,
-                                                SETUP_ENV_CHANGEENV|SETUP_ENV_NO_CHDIR, pw);
+                        if (!getenv("USER"))    xsetenv("USER",    pw->pw_name);
+                        if (!getenv("LOGNAME")) xsetenv("LOGNAME", pw->pw_name);
+                        if (!getenv("HOME"))    xsetenv("HOME",    pw->pw_dir);
+                        if (!getenv("SHELL"))   xsetenv("SHELL",   DEFAULT_SHELL);
                 }
 #endif
                 for (envp = environ; envp && *envp; envp++) {