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Make memcontrol's internal help actually work. No substitute for a real

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manpage, but at least now you can get syntax help without resorting
to reading the source.
This commit is contained in:
Mike Smith 1999-07-20 04:33:14 +00:00
parent 50d57a133e
commit 5fd6b620bb
1 changed files with 19 additions and 3 deletions
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22
usr.sbin/memcontrol/memcontrol.c
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@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id$
* $Id: memcontrol.c,v 1.1.1.1 1999/04/07 04:11:14 msmith Exp $
*/
#include <sys/types.h>
@ -315,11 +315,27 @@ clearfunc(int memfd, int argc, char *argv[])
static void
helpfunc(int memfd, int argc, char *argv[])
{
help(NULL);
help(argv[1]);
}
static void
help(char *what)
{
errx(1, "help!");
int i;
if (what != NULL) {
/* find a function that matches */
for (i = 0; functions[i].cmd != NULL; i++)
if (!strcmp(what, functions[i].cmd)) {
fprintf(stderr, "%s\n", functions[i].desc);
return;
}
fprintf(stderr, "Unknown command '%s'\n", what);
}
/* print general help */
fprintf(stderr, "Valid commands are :\n");
for (i = 0; functions[i].cmd != NULL; i++)
fprintf(stderr, " %s\n", functions[i].cmd);
fprintf(stderr, "Use help <command> for command-specific help\n");
}