Changeset 3442 for trunk/src/kash/redir.c

Timestamp:

Sep 10, 2020, 2:06:29 PM (5 years ago)

Author:

bird

Message:

kash: Turns out the redirlist needs to be copied too.

File:

• trunk/src/kash/redir.c (modified) (1 diff)

trunk/src/kash/redir.c

@@ -90 +90 @@
 STATIC void openredirect(shinstance *, union node *, char[10], int);
 STATIC int openhere(shinstance *, union node *);
+
+
+#ifndef SH_FORKED_MODE
+void
+subshellinitredir(shinstance *psh, shinstance *inherit)
+{
+    /* We can have a redirlist here if we're handling backtick while expanding
+       arguments, just copy it even if the subshell probably doesn't need it. */
+    struct redirtab *src = inherit->redirlist;
+    if (src)
+    {
+        struct redirtab **dstp = &psh->redirlist;
+        do
+        {
+            struct redirtab *dst = ckmalloc(psh, sizeof(dst));
+            memcpy(dst->renamed, src->renamed, sizeof(dst->renamed));
+            *dstp = dst;
+            dstp = &dst->next;
+            src = src->next;
+        } while (src);
+        *dstp = NULL;
+
+        psh->fd0_redirected = inherit->fd0_redirected;
+    }
+}
+#endif /* !SH_FORKED_MODE */