Remove the local basename in favor of the libc version.

Remove xmalloc and xstrdup and do the error checking at the place of use.

usr.bin/m4/eval.c

@@ -86,6 +86,7 @@ register int td;
 {
 	register int c, n;
 	static int sysval = 0;
+	char *p;
 
 #ifdef DEBUG
 	printf("argc = %d\n", argc);
@@ -352,7 +353,9 @@ register int td;
 	 * dom4wrap - set up for
 	 * wrap-up/wind-down activity
 	 */
-		m4wraps = (argc > 2) ? xstrdup(argv[2]) : null;
+		if ((p = strdup(argv[2])) == NULL)
+			err(1, "strdup");
+		m4wraps = (argc > 2) ? p : null;
 		break;
 
 	case EXITTYPE:
@@ -472,7 +475,8 @@ register char *defn;
 	if (!*defn)
 		p->defn = null;
 	else
-		p->defn = xstrdup(defn);
+		if ((p->defn = strdup(defn)) == NULL)
+			err(1, "strdup");
 	p->type = MACRTYPE;
 }
 
@@ -515,7 +519,8 @@ register char *defn;
 	if (!*defn)
 		p->defn = null;
 	else
-		p->defn = xstrdup(defn);
+		if ((p->defn = strdup(defn)) == NULL)
+			err(1, "strdup");
 	p->type = MACRTYPE;
 }
 

usr.bin/m4/extern.h

@@ -37,8 +37,6 @@
  * $FreeBSD$
  */
 
-char	*basename __P((char *));
-char	*xalloc __P((unsigned long));
 int	expr __P((char *));
 ndptr	addent __P((char *));
 void	chrsave __P((int));
@@ -58,7 +56,6 @@ void	doundiv __P((char *[], int));
 void	eval __P((char *[], int, int));
 void	expand __P((char *[], int));
 void	getdiv __P((int));
-char	*xstrdup __P((const char *));
 int	hash __P((char *));
 int	indx __P((char *, char *));
 void	killdiv __P((void));

usr.bin/m4/look.c

@@ -36,6 +36,8 @@
 
 #ifndef lint
 static char sccsid[] = "@(#)look.c	8.1 (Berkeley) 6/6/93";
+static char rcsid[] =
+  "$FreeBSD$";
 #endif /* not lint */
 
 /*
@@ -45,6 +47,7 @@ static char sccsid[] = "@(#)look.c	8.1 (Berkeley) 6/6/93";
  */
 
 #include <sys/types.h>
+#include <err.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -89,10 +92,12 @@ char *name;
 	ndptr p;
 
 	h = hash(name);
-	p = (ndptr) xalloc(sizeof(struct ndblock));
+	if ((p = malloc(sizeof(struct ndblock))) == NULL)
+		err(1, "malloc");
 	p->nxtptr = hashtab[h];
 	hashtab[h] = p;
-	p->name = xstrdup(name);
+	if ((p->name = strdup(name)) == NULL)
+		err(1, "strdup");
 	return p;
 }
 

usr.bin/m4/main.c

@@ -59,6 +59,7 @@ static const char rcsid[] =
 #include <err.h>
 #include <signal.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 #include "mdef.h"
@@ -181,8 +182,11 @@ main(argc,argv)
         argv += optind;
 
 	active = stdout;		/* default active output     */
+	if ((p = strdup(_PATH_DIVDIRNAME)) == NULL)
+		err(1, "strdup");
+
 					/* filename for diversions   */
-	m4dir = mkdtemp(xstrdup(_PATH_DIVDIRNAME));
+	m4dir = mkdtemp(p);
 	err_set_exit(cleanup);
 	(void) asprintf(&m4temp, "%s/%s", m4dir, _PATH_DIVNAME);
 
@@ -406,7 +410,8 @@ initkwds() {
 
 	for (i = 0; i < MAXKEYS; i++) {
 		h = hash(keywrds[i].knam);
-		p = (ndptr) xalloc(sizeof(struct ndblock));
+		if ((p = malloc(sizeof(struct ndblock))) == NULL)
+			err(1, "malloc");
 		p->nxtptr = hashtab[h];
 		hashtab[h] = p;
 		p->name = keywrds[i].knam;

usr.bin/m4/misc.c

@@ -203,39 +203,6 @@ killdiv()
 		}
 }
 
-char *
-xalloc(n)
-unsigned long n;
-{
-	register char *p = malloc(n);
-
-	if (p == NULL)
-		err(1, "malloc");
-	return p;
-}
-
-char *
-xstrdup(s)
-const char *s;
-{
-	register char *p = strdup(s);
-	if (p == NULL)
-		err(1, "strdup");
-	return p;
-}
-
-char *
-basename(s)
-register char *s;
-{
-	register char *p;
-
-	if ((p = strrchr(s, '/')) == NULL)
-		return s;
-
-	return ++p;
-}
-
 void
 cleanup(n)
 int n;