We are inconsistent when it comes to function returns, so just go all

the way with the cwm specific parts.

ok oga@

calmwm.c

@@ -194,7 +194,7 @@ x_setupscreen(struct screen_ctx *sc, u_int which)
 		if (winattr.override_redirect ||
 		    winattr.map_state != IsViewable)
 			continue;
-		client_new(wins[i], sc, winattr.map_state != IsUnmapped);
+		(void)client_new(wins[i], sc, winattr.map_state != IsUnmapped);
 	}
 	XFree(wins);
 
@@ -229,7 +229,7 @@ x_errorhandler(Display *dpy, XErrorEvent *e)
 	char msg[80], number[80], req[80];
 
 	XGetErrorText(X_Dpy, e->error_code, msg, sizeof(msg));
-	snprintf(number, sizeof(number), "%d", e->request_code);
+	(void)snprintf(number, sizeof(number), "%d", e->request_code);
 	XGetErrorDatabaseText(X_Dpy, "XRequest", number,
 	    "<unknown>", req, sizeof(req));
 
@@ -258,6 +258,7 @@ usage(void)
 {
 	extern char	*__progname;
 
-	fprintf(stderr, "usage: %s [-c file] [-d display]\n", __progname);
+	(void)fprintf(stderr, "usage: %s [-c file] [-d display]\n",
+	    __progname);
 	exit(1);
 }

conf.c

@@ -48,14 +48,14 @@ conf_cmd_add(struct conf *c, char *image, char *label, int flags)
 	/* "term" and "lock" have special meanings. */
 
 	if (strcmp(label, "term") == 0)
-		strlcpy(c->termpath, image, sizeof(c->termpath));
+		(void)strlcpy(c->termpath, image, sizeof(c->termpath));
 	else if (strcmp(label, "lock") == 0)
-		strlcpy(c->lockpath, image, sizeof(c->lockpath));
+		(void)strlcpy(c->lockpath, image, sizeof(c->lockpath));
 	else {
 		struct cmd *cmd = xmalloc(sizeof(*cmd));
 		cmd->flags = flags;
-		strlcpy(cmd->image, image, sizeof(cmd->image));
-		strlcpy(cmd->label, label, sizeof(cmd->label));
+		(void)strlcpy(cmd->image, image, sizeof(cmd->image));
+		(void)strlcpy(cmd->label, label, sizeof(cmd->label));
 		TAILQ_INSERT_TAIL(&c->cmdq, cmd, entry);
 	}
 }
@@ -199,8 +199,8 @@ conf_init(struct conf *c)
 		conf_mousebind(c, m_binds[i].key, m_binds[i].func);
 
 	/* Default term/lock */
-	strlcpy(c->termpath, "xterm", sizeof(c->termpath));
-	strlcpy(c->lockpath, "xlock", sizeof(c->lockpath));
+	(void)strlcpy(c->termpath, "xterm", sizeof(c->termpath));
+	(void)strlcpy(c->lockpath, "xlock", sizeof(c->lockpath));
 
 	c->color[CWM_COLOR_BORDER_ACTIVE].name =
 	    xstrdup(CONF_COLOR_ACTIVEBORDER);
@@ -273,13 +273,14 @@ conf_setup(struct conf *c, const char *conf_file)
 		if (home == NULL)
 			errx(1, "No HOME directory.");
 
-		snprintf(c->conf_path, sizeof(c->conf_path), "%s/%s", home,
-		    CONFFILE);
+		(void)snprintf(c->conf_path, sizeof(c->conf_path), "%s/%s",
+		    home, CONFFILE);
 	} else
 		if (stat(conf_file, &sb) == -1 || !(sb.st_mode & S_IFREG))
 			errx(1, "%s: %s", conf_file, strerror(errno));
 		else
-			strlcpy(c->conf_path, conf_file, sizeof(c->conf_path));
+			(void)strlcpy(c->conf_path, conf_file,
+			    sizeof(c->conf_path));
 
 	conf_init(c);
 

group.c

@@ -377,10 +377,10 @@ group_menu(XButtonEvent *e)
 
 		mi = xcalloc(1, sizeof(*mi));
 		if (gc->hidden)
-			snprintf(mi->text, sizeof(mi->text), "%d: [%s]",
+			(void)snprintf(mi->text, sizeof(mi->text), "%d: [%s]",
 			    gc->shortcut, sc->group_names[i]);
 		else
-			snprintf(mi->text, sizeof(mi->text), "%d: %s",
+			(void)snprintf(mi->text, sizeof(mi->text), "%d: %s",
 			    gc->shortcut, sc->group_names[i]);
 		mi->ctx = gc;
 		TAILQ_INSERT_TAIL(&menuq, mi, entry);
@@ -533,7 +533,7 @@ group_set_names(struct screen_ctx *sc)
 	tlen = len;
 	for (i = 0; i < sc->group_nonames; i++) {
 		slen = strlen(sc->group_names[i]) + 1;
-		strlcpy(q, sc->group_names[i], tlen);
+		(void)strlcpy(q, sc->group_names[i], tlen);
 		tlen -= slen;
 		q += slen;
 	}

kbfunc.c

@@ -157,7 +157,7 @@ kbfunc_client_search(struct client_ctx *cc, union arg *arg)
 
 	TAILQ_FOREACH(cc, &Clientq, entry) {
 		mi = xcalloc(1, sizeof(*mi));
-		strlcpy(mi->text, cc->name, sizeof(mi->text));
+		(void)strlcpy(mi->text, cc->name, sizeof(mi->text));
 		mi->ctx = cc;
 		TAILQ_INSERT_TAIL(&menuq, mi, entry);
 	}
@@ -192,7 +192,7 @@ kbfunc_menu_search(struct client_ctx *cc, union arg *arg)
 
 	TAILQ_FOREACH(cmd, &Conf.cmdq, entry) {
 		mi = xcalloc(1, sizeof(*mi));
-		strlcpy(mi->text, cmd->label, sizeof(mi->text));
+		(void)strlcpy(mi->text, cmd->label, sizeof(mi->text));
 		mi->ctx = cmd;
 		TAILQ_INSERT_TAIL(&menuq, mi, entry);
 	}
@@ -291,7 +291,7 @@ kbfunc_exec(struct client_ctx *cc, union arg *arg)
 			/* skip everything but regular files and symlinks */
 			if (dp->d_type != DT_REG && dp->d_type != DT_LNK)
 				continue;
-			memset(tpath, '\0', sizeof(tpath));
+			(void)memset(tpath, '\0', sizeof(tpath));
 			l = snprintf(tpath, sizeof(tpath), "%s/%s", paths[i],
 			    dp->d_name);
 			/* check for truncation etc */
@@ -299,7 +299,8 @@ kbfunc_exec(struct client_ctx *cc, union arg *arg)
 				continue;
 			if (access(tpath, X_OK) == 0) {
 				mi = xcalloc(1, sizeof(*mi));
-				strlcpy(mi->text, dp->d_name, sizeof(mi->text));
+				(void)strlcpy(mi->text,
+				    dp->d_name, sizeof(mi->text));
 				TAILQ_INSERT_TAIL(&menuq, mi, entry);
 			}
 		}
@@ -366,7 +367,7 @@ kbfunc_ssh(struct client_ctx *cc, union arg *arg)
 		else {
 			/* EOF without EOL, copy and add the NUL */
 			lbuf = xmalloc(len + 1);
-			memcpy(lbuf, buf, len);
+			(void)memcpy(lbuf, buf, len);
 			lbuf[len] = '\0';
 			buf = lbuf;
 		}
@@ -379,13 +380,13 @@ kbfunc_ssh(struct client_ctx *cc, union arg *arg)
 		/* ignore badness */
 		if (p - buf + 1 > sizeof(hostbuf))
 			continue;
-		(void) strlcpy(hostbuf, buf, p - buf + 1);
+		(void)strlcpy(hostbuf, buf, p - buf + 1);
 		mi = xcalloc(1, sizeof(*mi));
-		(void) strlcpy(mi->text, hostbuf, sizeof(mi->text));
+		(void)strlcpy(mi->text, hostbuf, sizeof(mi->text));
 		TAILQ_INSERT_TAIL(&menuq, mi, entry);
 	}
 	xfree(lbuf);
-	fclose(fp);
+	(void)fclose(fp);
 
 	if ((mi = menu_filter(sc, &menuq, "ssh", NULL, 1,
 	    search_match_exec, NULL)) != NULL) {

menu.c

@@ -118,16 +118,16 @@ menu_filter(struct screen_ctx *sc, struct menu_q *menuq, char *prompt,
 		mc.list = 1;
 	} else {
 		evmask = MENUMASK | KEYMASK; /* only accept keys if prompt */
-		snprintf(mc.promptstr, sizeof(mc.promptstr), "%s%s", prompt,
-		    PROMPT_SCHAR);
-		snprintf(mc.dispstr, sizeof(mc.dispstr), "%s%s%s", mc.promptstr,
-		    mc.searchstr, PROMPT_ECHAR);
+		(void)snprintf(mc.promptstr, sizeof(mc.promptstr), "%s%s",
+		    prompt, PROMPT_SCHAR);
+		(void)snprintf(mc.dispstr, sizeof(mc.dispstr), "%s%s%s",
+		    mc.promptstr, mc.searchstr, PROMPT_ECHAR);
 		mc.width = font_width(sc, mc.dispstr, strlen(mc.dispstr));
 		mc.hasprompt = 1;
 	}
 
 	if (initial != NULL)
-		strlcpy(mc.searchstr, initial, sizeof(mc.searchstr));
+		(void)strlcpy(mc.searchstr, initial, sizeof(mc.searchstr));
 	else
 		mc.searchstr[0] = '\0';
 
@@ -268,7 +268,7 @@ menu_handle_key(XEvent *e, struct menu_ctx *mc, struct menu_q *menuq,
 		str[0] = chr;
 		str[1] = '\0';
 		mc->changed = 1;
-		strlcat(mc->searchstr, str, sizeof(mc->searchstr));
+		(void)strlcat(mc->searchstr, str, sizeof(mc->searchstr));
 	}
 
 	mc->noresult = 0;
@@ -312,7 +312,7 @@ menu_draw(struct screen_ctx *sc, struct menu_ctx *mc, struct menu_q *menuq,
 	mc->width = 0;
 	dy = 0;
 	if (mc->hasprompt) {
-		snprintf(mc->dispstr, sizeof(mc->dispstr), "%s%s%s",
+		(void)snprintf(mc->dispstr, sizeof(mc->dispstr), "%s%s%s",
 		    mc->promptstr, mc->searchstr, PROMPT_ECHAR);
 		mc->width = font_width(sc, mc->dispstr, strlen(mc->dispstr));
 		dy = font_height(sc);
@@ -405,11 +405,11 @@ menu_handle_move(XEvent *e, struct menu_ctx *mc, struct screen_ctx *sc)
 		XFillRectangle(X_Dpy, sc->menuwin, sc->gc, 0,
 		    font_height(sc) * mc->prev, mc->width, font_height(sc));
 	if (mc->entry != -1) {
-		xu_ptr_regrab(MENUGRABMASK, Cursor_normal);
+		(void)xu_ptr_regrab(MENUGRABMASK, Cursor_normal);
 		XFillRectangle(X_Dpy, sc->menuwin, sc->gc, 0,
 		    font_height(sc) * mc->entry, mc->width, font_height(sc));
 	} else
-		xu_ptr_regrab(MENUGRABMASK, Cursor_default);
+		(void)xu_ptr_regrab(MENUGRABMASK, Cursor_default);
 }
 
 static struct menu *

mousefunc.c

@@ -57,7 +57,7 @@ mousefunc_sweep_draw(struct client_ctx *cc)
 	char			 asize[10]; /* fits "nnnnxnnnn\0" */
 	int			 width, width_size, width_name;
 
-	snprintf(asize, sizeof(asize), "%dx%d",
+	(void)snprintf(asize, sizeof(asize), "%dx%d",
 	    (cc->geom.width - cc->geom.basew) / cc->geom.incw,
 	    (cc->geom.height - cc->geom.baseh) / cc->geom.inch);
 	width_size = font_width(sc, asize, strlen(asize)) + 4;
@@ -234,7 +234,7 @@ mousefunc_menu_unhide(struct client_ctx *cc, void *arg)
 				continue;
 
 			mi = xcalloc(1, sizeof(*mi));
-			strlcpy(mi->text, wname, sizeof(mi->text));
+			(void)strlcpy(mi->text, wname, sizeof(mi->text));
 			mi->ctx = cc;
 			TAILQ_INSERT_TAIL(&menuq, mi, entry);
 		}
@@ -271,7 +271,7 @@ mousefunc_menu_cmd(struct client_ctx *cc, void *arg)
 	TAILQ_INIT(&menuq);
 	TAILQ_FOREACH(cmd, &Conf.cmdq, entry) {
 		mi = xcalloc(1, sizeof(*mi));
-		strlcpy(mi->text, cmd->label, sizeof(mi->text));
+		(void)strlcpy(mi->text, cmd->label, sizeof(mi->text));
 		mi->ctx = cmd;
 		TAILQ_INSERT_TAIL(&menuq, mi, entry);
 	}

parse.y

@@ -142,7 +142,7 @@ main		: FONTNAME STRING		{
 			struct winmatch	*wm;
 
 			wm = xcalloc(1, sizeof(*wm));
-			strlcpy(wm->title, $2, sizeof(wm->title));
+			(void)strlcpy(wm->title, $2, sizeof(wm->title));
 			TAILQ_INSERT_TAIL(&conf->ignoreq, wm, entry);
 
 			free($2);
@@ -502,7 +502,7 @@ parse_config(const char *filename, struct conf *xconf)
 		return (-1);
 	}
 
-	strlcpy(conf->conf_path, filename, sizeof(conf->conf_path));
+	(void)strlcpy(conf->conf_path, filename, sizeof(conf->conf_path));
 
 	conf_init(conf);
 
@@ -555,9 +555,9 @@ parse_config(const char *filename, struct conf *xconf)
 			TAILQ_INSERT_TAIL(&xconf->mousebindingq, mb, entry);
 		}
 
-		strlcpy(xconf->termpath, conf->termpath,
+		(void)strlcpy(xconf->termpath, conf->termpath,
 		    sizeof(xconf->termpath));
-		strlcpy(xconf->lockpath, conf->lockpath,
+		(void)strlcpy(xconf->lockpath, conf->lockpath,
 		    sizeof(xconf->lockpath));
 
 		for (i = 0; i < CWM_COLOR_MAX; i++)

search.c

@@ -46,7 +46,7 @@ search_match_client(struct menu_q *menuq, struct menu_q *resultq, char *search)
 
 	TAILQ_INIT(resultq);
 
-	memset(tierp, 0, sizeof(tierp));
+	(void)memset(tierp, 0, sizeof(tierp));
 
 	/*
 	 * In order of rank:
@@ -134,7 +134,8 @@ search_print_client(struct menu *mi, int list)
 	if (list)
 		cc->matchname = cc->name;
 
-	snprintf(mi->print, sizeof(mi->print), "%c%s", flag, cc->matchname);
+	(void)snprintf(mi->print, sizeof(mi->print), "%c%s", flag,
+	    cc->matchname);
 
 	if (!list && cc->matchname != cc->name &&
 	    strlen(mi->print) < sizeof(mi->print) - 1) {
@@ -154,8 +155,8 @@ search_print_client(struct menu *mi, int list)
 			diff = strlen(cc->name);
 		}
 
-		strlcpy(buf, mi->print, sizeof(buf));
-		snprintf(mi->print, sizeof(mi->print),
+		(void)strlcpy(buf, mi->print, sizeof(buf));
+		(void)snprintf(mi->print, sizeof(mi->print),
 		    "%s:%.*s%s", buf, diff, cc->name, marker);
 	}
 }

util.c

@@ -76,6 +76,6 @@ u_exec(char *argstr)
 	}
 
 	*ap = NULL;
-	setsid();
-	execvp(args[0], args);
+	(void)setsid();
+	(void)execvp(args[0], args);
 }

xutil.c

@@ -142,7 +142,7 @@ xu_sendmsg(Window win, Atom atm, long val)
 {
 	XEvent	 e;
 
-	memset(&e, 0, sizeof(e));
+	(void)memset(&e, 0, sizeof(e));
 	e.xclient.type = ClientMessage;
 	e.xclient.window = win;
 	e.xclient.message_type = atm;