1 files changed, 34 insertions, 0 deletions
diff --git a/newlib/libc/argz/envz_remove.c b/newlib/libc/argz/envz_remove.c
new file mode 100644
index 000000000..ace547968
--- /dev/null
+++ b/newlib/libc/argz/envz_remove.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 2002 by  Red Hat, Incorporated. All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software
+ * is freely granted, provided that this notice is preserved.
+ */
+
+#include <errno.h>
+#include <sys/types.h>
+#include <string.h>
+#include <stdlib.h>
+#include <argz.h>
+#include <envz.h>
+
+void
+envz_remove(char **envz, size_t *envz_len, const char *name)
+{
+  char *entry = NULL;
+  int len = 0;
+  entry = envz_entry (*envz, *envz_len, name);
+
+  if (entry)
+    {
+      len = strlen(entry) + 1;
+
+      /* Not the last entry. */
+      if (*envz + *envz_len != entry + len - 1)
+        {
+          memmove(entry, entry + len, *envz + *envz_len - entry - len);
+        }
+
+      *envz = (char *)realloc(*envz, *envz_len - len);
+      *envz_len -= len;
+    }
+}