1 files changed, 43 insertions, 0 deletions
diff --git a/newlib/libc/argz/envz_entry.c b/newlib/libc/argz/envz_entry.c
new file mode 100644
index 000000000..4c06f0f40
--- /dev/null
+++ b/newlib/libc/argz/envz_entry.c
@@ -0,0 +1,43 @@
+/* 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 <envz.h>
+
+extern int buf_findstr(const char *str, char **buf, size_t *buf_len);
+
+char *
+envz_entry (const char *envz, size_t envz_len, const char *name)
+{
+  const char *buf_ptr = envz;
+  size_t buf_len = envz_len;
+
+  while(buf_len)
+    {
+      if (buf_findstr(name, &buf_ptr, &buf_len))
+        {
+          if (buf_ptr)
+            {
+              if (*buf_ptr == '=' || *buf_ptr == '\0')
+                {
+                  buf_ptr--;
+
+                  /* Move buf_ptr back to start of entry. */
+                  while(*buf_ptr != '\0' && buf_ptr != envz) buf_ptr--;
+                  
+                  if(*buf_ptr == '\0')
+                    buf_ptr++;
+
+                  return buf_ptr;
+                }
+            }
+        }
+    }
+  return 0;
+}