sh: Remove special code for shell scripts without magic number.

These are called "shell procedures" in the source.

If execve() failed with [ENOEXEC], the shell would reinitialize itself
and execute the program as a script. This requires a fair amount of code
which is not frequently used (most scripts have a #! magic number).
Therefore just execute a new instance of sh (_PATH_BSHELL) to run the
script.

1 files changed, 1 insertions, 42 deletions

diff --git a/bin/sh/var.c b/bin/sh/var.c
index 44d2028..e14027f 100644
--- a/bin/sh/var.c
+++ b/bin/sh/var.c
@@ -161,7 +161,7 @@ INIT {
 
 /*
  * This routine initializes the builtin variables.  It is called when the
- * shell is initialized and again when a shell procedure is spawned.
+ * shell is initialized.
  */
 
 void
@@ -542,47 +542,6 @@ environment(void)
 }
 
 
-/*
- * Called when a shell procedure is invoked to clear out nonexported
- * variables.  It is also necessary to reallocate variables of with
- * VSTACK set since these are currently allocated on the stack.
- */
-
-MKINIT void shprocvar(void);
-
-#ifdef mkinit
-SHELLPROC {
-	shprocvar();
-}
-#endif
-
-void
-shprocvar(void)
-{
-	struct var **vpp;
-	struct var *vp, **prev;
-
-	for (vpp = vartab ; vpp < vartab + VTABSIZE ; vpp++) {
-		for (prev = vpp ; (vp = *prev) != NULL ; ) {
-			if ((vp->flags & VEXPORT) == 0) {
-				*prev = vp->next;
-				if ((vp->flags & VTEXTFIXED) == 0)
-					ckfree(vp->text);
-				if ((vp->flags & VSTRFIXED) == 0)
-					ckfree(vp);
-			} else {
-				if (vp->flags & VSTACK) {
-					vp->text = savestr(vp->text);
-					vp->flags &=~ VSTACK;
-				}
-				prev = &vp->next;
-			}
-		}
-	}
-	initvar();
-}
-
-
 static int
 var_compare(const void *a, const void *b)
 {