top(1): include what you use

- Change headers to more closely match what we use
- use more standard functions instead of bzero, bcmp, bcopy
- Add myself to authors.

Tested with: base clang (amd64), gcc 9 (amd64), base clang (i386), base
gcc (mips)

usr.bin/top/commands.c

@@ -18,6 +18,7 @@
  */
 
 #include <sys/resource.h>
+#include <sys/signal.h>
 
 #include <ctype.h>
 #include <errno.h>

usr.bin/top/display.c

@@ -28,17 +28,17 @@
  *        *_process, u_endscreen.
  */
 
+#include <sys/cdefs.h>
 #include <sys/resource.h>
 #include <sys/time.h>
 
 #include <assert.h>
-#include <curses.h>
 #include <ctype.h>
 #include <stdarg.h>
 #include <stdbool.h>
 #include <stdlib.h>
+#include <stdio.h>
 #include <string.h>
-#include <strings.h>
 #include <termcap.h>
 #include <time.h>
 #include <unistd.h>
@@ -823,7 +823,7 @@ i_process(int line, char *thisline)
     p = stpcpy(base, thisline);
 
     /* zero fill the rest of it */
-    bzero(p, display_width - (p - base));
+    memset(p, 0, display_width - (p - base));
 }
 
 void
@@ -862,7 +862,7 @@ u_process(int line, char *newline)
 	optr = stpcpy(bufferline, newline);
 
 	/* zero fill the rest of it */
-	bzero(optr, display_width - (optr - bufferline));
+	memset(optr, 0, display_width - (optr - bufferline));
     }
     else
     {
@@ -1236,7 +1236,7 @@ line_update(char *old, char *new, int start, int line)
     diff = display_width - newcol;
     if (diff > 0)
     {
-	bzero(old, diff);
+	memset(old, 0, diff);
     }
 
     /* remember where the current line is */

usr.bin/top/display.h

@@ -4,7 +4,8 @@
 #define  MT_standout  1
 #define  MT_delayed   2
 
-#include "machine.h"
+#include <sys/time.h>
+struct statics;
 
 int		 display_updatecpus(struct statics *statics);
 void	 clear_message(void);

usr.bin/top/machine.c

@@ -8,37 +8,35 @@
  *   by Monte Mitzelfelt (for latest top see http://www.groupsys.com/topinfo/)
  *
  * AUTHOR:  Christos Zoulas <christos@ee.cornell.edu>
- *          Steven Wallace  <swallace@freebsd.org>
+ *          Steven Wallace  <swallace@FreeBSD.org>
  *          Wolfram Schneider <wosch@FreeBSD.org>
  *          Thomas Moestl <tmoestl@gmx.net>
+ *          Eitan Adler <eadler@FreeBSD.org>
  *
  * $FreeBSD$
  */
 
 #include <sys/errno.h>
-#include <sys/file.h>
+#include <sys/fcntl.h>
 #include <sys/param.h>
+#include <sys/priority.h>
 #include <sys/proc.h>
 #include <sys/resource.h>
-#include <sys/rtprio.h>
-#include <sys/signal.h>
 #include <sys/sysctl.h>
 #include <sys/time.h>
 #include <sys/user.h>
-#include <sys/vmmeter.h>
 
 #include <assert.h>
 #include <err.h>
 #include <kvm.h>
 #include <math.h>
-#include <nlist.h>
 #include <paths.h>
-#include <pwd.h>
 #include <stdio.h>
 #include <stdbool.h>
+#include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
-#include <strings.h>
+#include <time.h>
 #include <unistd.h>
 #include <vis.h>
 
@@ -86,8 +84,6 @@ struct handle {
 
 #define	PCTCPU(pp) (pcpu[pp - pbase])
 
-/* definitions for indices in the nlist array */
-
 /*
  *  These definitions control the format of the per-process area
  */
@@ -647,7 +643,7 @@ get_old_proc(struct kinfo_proc *pp)
 		return (NULL);
 	}
 	oldp = *oldpp;
-	if (bcmp(&oldp->ki_start, &pp->ki_start, sizeof(pp->ki_start)) != 0) {
+	if (memcmp(&oldp->ki_start, &pp->ki_start, sizeof(pp->ki_start)) != 0) {
 		pp->ki_udata = NOPROC;
 		return (NULL);
 	}
@@ -669,7 +665,7 @@ get_io_stats(const struct kinfo_proc *pp, long *inp, long *oup, long *flp,
 
 	oldp = get_old_proc(pp);
 	if (oldp == NULL) {
-		bzero(&dummy, sizeof(dummy));
+		memset(&dummy, 0, sizeof(dummy));
 		oldp = &dummy;
 	}
 	*inp = RU(pp)->ru_inblock - RU(oldp)->ru_inblock;

usr.bin/top/machine.h

@@ -10,6 +10,9 @@
 #ifndef MACHINE_H
 #define MACHINE_H
 
+#include <sys/time.h>
+#include <sys/types.h>
+
 #define NUM_AVERAGES    3
 
 /* Log base 2 of 1024 is 10 (2^10 == 1024) */

usr.bin/top/top.c

@@ -13,15 +13,17 @@
  */
 
 #include <sys/types.h>
-#include <sys/param.h>
-#include <sys/jail.h>
 #include <sys/time.h>
+#include <sys/cdefs.h>
+#include <sys/limits.h>
+#include <sys/select.h>
+#include <sys/signal.h>
+#include <time.h>
 
-#include <ctype.h>
-#include <curses.h>
 #include <errno.h>
 #include <jail.h>
-#include <setjmp.h>
+#include <stdbool.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <signal.h>
 #include <string.h>

usr.bin/top/username.c

@@ -30,7 +30,6 @@
  */
 
 #include <sys/param.h>
-#include <sys/types.h>
 
 #include <pwd.h>
 #include <stdbool.h>