Make memcontrol's internal help actually work. No substitute for a real
manpage, but at least now you can get syntax help without resorting to reading the source.
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parent
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=48920
@ -23,7 +23,7 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id$
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* $Id: memcontrol.c,v 1.1.1.1 1999/04/07 04:11:14 msmith Exp $
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*/
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#include <sys/types.h>
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@ -315,11 +315,27 @@ clearfunc(int memfd, int argc, char *argv[])
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static void
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helpfunc(int memfd, int argc, char *argv[])
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{
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help(NULL);
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help(argv[1]);
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}
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static void
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help(char *what)
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{
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errx(1, "help!");
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int i;
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if (what != NULL) {
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/* find a function that matches */
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for (i = 0; functions[i].cmd != NULL; i++)
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if (!strcmp(what, functions[i].cmd)) {
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fprintf(stderr, "%s\n", functions[i].desc);
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return;
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}
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fprintf(stderr, "Unknown command '%s'\n", what);
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}
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/* print general help */
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fprintf(stderr, "Valid commands are :\n");
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for (i = 0; functions[i].cmd != NULL; i++)
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fprintf(stderr, " %s\n", functions[i].cmd);
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fprintf(stderr, "Use help <command> for command-specific help\n");
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}
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