* libc/argz: New directory.

	* libc/argz/*: New files.
	* libc/argz/argz_add.c: New file.
	* libc/argz/argz_add_sep.c: New file.
	* libc/argz/argz_append.c: New file.
	* libc/argz/argz_count.c: New file.
	* libc/argz/argz_create.c: New file.
	* libc/argz/argz_create_sep.c: New file.
	* libc/argz/argz_delete.c: New file.
	* libc/argz/argz_extract.c: New file.
	* libc/argz/argz_insert.c: New file.
	* libc/argz/argz_next.c: New file.
	* libc/argz/argz_replace.c: New file.
	* libc/argz/argz_stringify.c: New file.
	* libc/argz/buf_findstr.c: New file.
	* libc/argz/envz_add.c: New file.
	* libc/argz/envz_entry.c: New file.
	* libc/argz/envz_get.c: New file.
	* libc/argz/envz_merge.c: New file.
	* libc/argz/envz_remove.c: New file.
	* libc/argz/envz_strip.c: New file.
	* libc/include/argz.h: New file.
	* libc/include/envz.h: New file.
	* Makefile.am (LIBC_OBJECTLISTS): Add
	libc/argz/objectlist.awk.in.
	* libc/Makefile.am (SUBDIRS): Add argz.
	(SUBLIBS): Add argz/libargz.la.
	* libc/configure.in (AC_OUTPUT): Add argz/Makefile.
	* libc/include/errno.h: Add error_t typedef.

1 files changed, 38 insertions, 0 deletions

diff --git a/newlib/libc/argz/argz_insert.c b/newlib/libc/argz/argz_insert.c
new file mode 100644
index 000000000..af16301c5
--- /dev/null
+++ b/newlib/libc/argz/argz_insert.c
@@ -0,0 +1,38 @@
+/* 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>
+
+error_t
+argz_insert (char **argz, size_t *argz_len, char *before, const char *entry)
+{
+  int len = 0;
+
+  if (before == NULL)
+    argz_add(argz, argz_len, entry);
+
+  if (before < *argz || before >= *argz + *argz_len)
+    return EINVAL;
+
+  while (before != *argz && before[-1])
+    before--;
+
+  len = strlen(entry) + 1;
+
+  if(!(*argz = (char *)realloc(*argz, *argz_len + len)))
+    return ENOMEM;
+  
+  memmove(before + len, before, *argz + *argz_len - before);
+  memcpy(before, entry, len);
+
+  *argz_len += len;
+
+  return 0;
+}