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hush: add showvar command for hush shell.

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This new command shows the local variables defined in
the hush shell:

=> help showvar
showvar
    - print values of all hushshell variables
showvar name ...
    - print value of hushshell variable 'name'

Also make the set_local_var() and unset_local_var ()
no longer static, so it is possible to define local
hush shell variables at boot time. If CONFIG_HUSH_INIT_VAR
is defined, u-boot calls hush_init_var (), where
boardspecific code can define local hush shell
variables at boottime.

Signed-off-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Heiko Schocher
2008-10-15 09:40:28 +02:00
committed by Wolfgang Denk
parent 67b23a3228
commit 81473f6781
3 changed files with 62 additions and 8 deletions
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6
include/hush.h
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@@ -32,4 +32,10 @@ extern int u_boot_hush_start(void);
extern int parse_string_outer(char *, int);
extern int parse_file_outer(void);
int set_local_var(const char *s, int flg_export);
void unset_local_var(const char *name);
#if defined(CONFIG_HUSH_INIT_VAR)
extern int hush_init_var (void);
#endif
#endif