$NetBSD: patch-ex__tagio_c,v 1.1 2012/12/28 03:03:08 dholland Exp $

- avoid implicit int
- don't misuse NULL
- declare void functions void

--- ex_tagio.c~	2003-09-03 19:53:02.000000000 +0000
+++ ex_tagio.c
@@ -96,6 +96,7 @@ static int bcnt = 0;
 static int b_size = MAXBSIZE;
 static char *ibuf;
 
+int
 topen(file, buf)
 char *file, *buf;
 {
@@ -116,6 +117,7 @@ char *file, *buf;
 	return(fd);
 }
 
+int
 tseek(fd, off)
 int fd;
 off_t off;
@@ -134,6 +136,7 @@ off_t off;
 	return(0);
 }
 
+int
 tgets(buf, cnt, fd)
 register char *buf;
 int cnt;
@@ -145,19 +148,19 @@ int fd;
 	cc = offset;
 	if (cc == -1) {
 		if ((bcnt = read(fd, ibuf, b_size)) <= 0)
-			return (NULL);
+			return 0;
 		cc = 0;
 		block = 0;
 	}
 	if (bcnt == 0)		/* EOF */
-		return(NULL);
+		return 0;
 	cp = ibuf + cc;
 	while (--cnt > 0) {
 		if (++cc > bcnt) {
 			block += b_size;
 			if ((bcnt = read(fd, ibuf, b_size)) <= 0) {
 				offset = cc;
-				return (NULL);
+				return 0;
 			}
 			cp = ibuf;
 			cc = 1;
@@ -170,6 +173,7 @@ int fd;
 	return(1);
 }
 
+void
 tclose(fd)
 int fd;
 {