From 612f3023ef5a5fb7a06d2070db732dd1e2da7b5d Mon Sep 17 00:00:00 2001
From: Sam Leffler <sam@ucbvax.Berkeley.EDU>
Date: Mon, 3 Oct 1983 05:41:00 -0800
Subject: [PATCH] date and time created 83/10/02 21:41:00 by sam

SCCS-vsn: usr.bin/systat/cmds.c 1.1
---
 usr/src/usr.bin/systat/cmds.c | 138 ++++++++++++++++++++++++++++++++++
 1 file changed, 138 insertions(+)
 create mode 100644 usr/src/usr.bin/systat/cmds.c

diff --git a/usr/src/usr.bin/systat/cmds.c b/usr/src/usr.bin/systat/cmds.c
new file mode 100644
index 0000000000..aefd22b912
--- /dev/null
+++ b/usr/src/usr.bin/systat/cmds.c
@@ -0,0 +1,138 @@
+#ifndef lint
+static char sccsid[] = "@(#)cmds.c	1.1 (Lucasfilm) %G%";
+#endif
+
+/*
+ * Command support.
+ */
+
+#include "systat.h"
+
+command(cmd)
+        char *cmd;
+{
+        register char *cp;
+        register struct cmdtab *p;
+        char *arg;
+
+        for (cp = cmd; *cp && !isspace(*cp); cp++)
+                ;
+        if (*cp)
+                *cp++ = '\0';
+        if (strcmp(cmd, "quit") == 0)
+                die();
+        if (strcmp(cmd, "status") == 0 || strcmp(cmd, "help") == 0) {
+                status();
+                return;
+        }
+	if (strcmp(cmd, "load") == 0) {
+		load();
+		return;
+	}
+	p = getcmd(cmd);
+        if (p != (struct cmdtab *)-1) {
+                if (curcmd == p)
+                        return;
+                alarm(0);
+		(*curcmd->c_close)(wnd);
+		wnd = (*p->c_open)();
+                curcmd = p;
+		if (p->c_flags == 0) {
+			(*p->c_init)();
+			p->c_flags = 1;
+		}
+		labels();
+                display();
+                status();
+                return;
+        }
+        if (strcmp(cmd, "stop") == 0) {
+                alarm(0);
+                mvaddstr(22, 0, "Refresh disabled.");
+                clrtoeol();
+                return;
+        }
+        /* commands with arguments */
+        for (; *cp && isspace(*cp); cp++)
+                ;
+        if (strcmp(cmd, "start") == 0) {
+                int x;
+
+                if (*cp == '\0')
+                        x = naptime;
+                else
+                        x = atoi(cp);
+                if (x <= 0) {
+                        mvprintw(22, 0, "%d: bad interval.", x);
+                        clrtoeol();
+                        return;
+                }
+                alarm(0);
+                naptime = x;
+                display();
+                status();
+                return;
+        }
+	if (*cmd) {
+		mvprintw(22, 0, "%s: Unknown command.", cmd);
+		clrtoeol();
+	}
+}
+
+struct cmdtab *
+getcmd(name)
+	register char *name;
+{
+	register char *p, *q;
+	register struct cmdtab *c, *found;
+	register int nmatches, longest;
+
+	longest = 0;
+	nmatches = 0;
+	found = 0;
+	for (c = cmdtab; p = c->c_name; c++) {
+		for (q = name; *q == *p++; q++)
+			if (*q == 0)		/* exact match? */
+				return (c);
+		if (!*q) {			/* the name was a prefix */
+			if (q - name > longest) {
+				longest = q - name;
+				nmatches = 1;
+				found = c;
+			} else if (q - name == longest)
+				nmatches++;
+		}
+	}
+	if (nmatches > 1)
+		return ((struct cmdtab *)-1);
+	return (found);
+}
+
+status()
+{
+
+        mvprintw(22, 0, "Showing %s, refresh every %d seconds.",
+          curcmd->c_name, naptime);
+        clrtoeol();
+}
+
+suspend()
+{
+        int oldmask;
+
+	alarm(0);
+        move(22, 0);
+        refresh();
+        echo();
+        nocrmode();
+        signal(SIGTSTP, SIG_DFL);
+        oldmask = sigsetmask(0);
+        kill(getpid(), SIGTSTP);
+        sigsetmask(oldmask);
+        signal(SIGTSTP, suspend);
+        crmode();
+        noecho();
+        move(22, col);
+        wrefresh(curscr);
+	alarm(naptime);
+}
-- 
2.20.1