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env: Add environment variable flags

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Currently just validates variable types as decimal, hexidecimal,
boolean, ip address, and mac address.

If the entry is not found in the env ".flags", then look in the static
one. This allows the env to override the static definitions, but prevents
the need to have every definition in the environment distracting you.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Joe Hershberger
2012-12-11 22:16:31 -06:00
committed by Tom Rini
parent e080d545f8
commit 2598090b7e
11 changed files with 447 additions and 58 deletions
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2
include/env_callback.h
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@ -24,6 +24,7 @@
#ifndef __ENV_CALLBACK_H__
#define __ENV_CALLBACK_H__
#include <env_flags.h>
#include <linker_lists.h>
#include <search.h>
@ -45,6 +46,7 @@
* a new association in the ".callbacks" environment variable.
*/
#define ENV_CALLBACK_LIST_STATIC ENV_CALLBACK_VAR ":callbacks," \
ENV_FLAGS_VAR ":flags," \
"baudrate:baudrate," \
"bootfile:bootfile," \
"loadaddr:loadaddr," \