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Add standard command "help" to print usage.

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This commit is contained in:
Pawel Jakub Dawidek 2004-05-22 16:57:39 +00:00
parent 96818a07a7
commit b70eccf3bd
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=129591
1 changed files with 14 additions and 3 deletions
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17
sbin/geom/core/geom.c
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@ -60,11 +60,13 @@ static void (*usage)(const char *name);
static struct g_command *find_command(const char *cmdstr, int all);
static int std_available(const char *name);
static void std_help(struct gctl_req *req, unsigned flags);
static void std_list(struct gctl_req *req, unsigned flags);
static void std_load(struct gctl_req *req, unsigned flags);
static void std_unload(struct gctl_req *req, unsigned flags);
struct g_command std_commands[] = {
{ "help", 0, std_help, G_NULL_OPTS },
{ "list", 0, std_list, G_NULL_OPTS },
{ "load", G_FLAG_VERBOSE | G_FLAG_LOADKLD, std_load, G_NULL_OPTS },
{ "unload", G_FLAG_VERBOSE, std_unload, G_NULL_OPTS },
@ -110,8 +112,8 @@ geom_usage(void)
{
if (class_name == NULL) {
errx(EXIT_FAILURE, "usage: %s <class name> <command> "
"[options]", "geom");
errx(EXIT_FAILURE, "usage: %s <class> <command> [options]",
"geom");
} else {
const char *prefix;
unsigned i;
@ -597,6 +599,13 @@ show_one(struct gprovider *pp)
printf("\n");
}
static void
std_help(struct gctl_req *req __unused, unsigned flags __unused)
{
geom_usage();
}
static int
std_list_available(void)
{
@ -743,7 +752,9 @@ static int
std_available(const char *name)
{
if (strcmp(name, "list") == 0)
if (strcmp(name, "help") == 0)
return (1);
else if (strcmp(name, "list") == 0)
return (std_list_available());
else if (strcmp(name, "load") == 0)
return (std_load_available());