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nvram: add usage() function

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Merge the help message into a single function,
so that we can use it somewhere else.

Signed-off-by: BangLang Huang <banglang.huang@foxmail.com>
(cherry picked from commit 2a253e7cdb)
This commit is contained in:
BangLang Huang
2017-02-24 10:45:16 +08:00
committed by Jo-Philipp Wich
parent 9e84d333b1
commit c446ee4ad4
1 changed files with 13 additions and 10 deletions
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23
package/utils/nvram/src/cli.c
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@@ -133,6 +133,18 @@ static int do_info(nvram_handle_t *nvram)
return 0; return 0;
} }
static void usage(void)
{
fprintf(stderr,
"Usage:\n"
" nvram show\n"
" nvram info\n"
" nvram get variable\n"
" nvram set variable=value [set ...]\n"
" nvram unset variable [unset ...]\n"
" nvram commit\n"
);
}
int main( int argc, const char *argv[] ) int main( int argc, const char *argv[] )
{ {
@@ -233,16 +245,7 @@ int main( int argc, const char *argv[] )
} }
else if( !done ) else if( !done )
{ {
fprintf(stderr, usage();
"Usage:\n"
" nvram show\n"
" nvram info\n"
" nvram get variable\n"
" nvram set variable=value [set ...]\n"
" nvram unset variable [unset ...]\n"
" nvram commit\n"
);
stat = 1; stat = 1;
} }