Module Name:    src
Committed By:   christos
Date:           Sat Sep  3 10:59:11 UTC 2011

Modified Files:
        src/usr.bin/tail: forward.c read.c reverse.c tail.c

Log Message:
minor knf, no functional change.


To generate a diff of this commit:
cvs rdiff -u -r1.30 -r1.31 src/usr.bin/tail/forward.c
cvs rdiff -u -r1.16 -r1.17 src/usr.bin/tail/read.c
cvs rdiff -u -r1.22 -r1.23 src/usr.bin/tail/reverse.c
cvs rdiff -u -r1.15 -r1.16 src/usr.bin/tail/tail.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/usr.bin/tail/forward.c
diff -u src/usr.bin/tail/forward.c:1.30 src/usr.bin/tail/forward.c:1.31
--- src/usr.bin/tail/forward.c:1.30	Sat Sep  3 05:02:20 2011
+++ src/usr.bin/tail/forward.c	Sat Sep  3 06:59:10 2011
@@ -1,4 +1,4 @@
-/*	$NetBSD: forward.c,v 1.30 2011/09/03 09:02:20 christos Exp $	*/
+/*	$NetBSD: forward.c,v 1.31 2011/09/03 10:59:10 christos Exp $	*/
 
 /*-
  * Copyright (c) 1991, 1993
@@ -37,7 +37,7 @@
 #if 0
 static char sccsid[] = "@(#)forward.c	8.1 (Berkeley) 6/6/93";
 #endif
-__RCSID("$NetBSD: forward.c,v 1.30 2011/09/03 09:02:20 christos Exp $");
+__RCSID("$NetBSD: forward.c,v 1.31 2011/09/03 10:59:10 christos Exp $");
 #endif /* not lint */
 
 #include <sys/types.h>
@@ -206,15 +206,15 @@
 			memset(ev, 0, sizeof(ev));
 			if (fflag == 2 && fileno(fp) != STDIN_FILENO) {
 				EV_SET(&ev[n], fileno(fp), EVFILT_VNODE,
-					EV_ADD | EV_ENABLE | EV_CLEAR,
-					NOTE_DELETE | NOTE_RENAME, 0, 0);
+				    EV_ADD | EV_ENABLE | EV_CLEAR,
+				    NOTE_DELETE | NOTE_RENAME, 0, 0);
 				n++;
 			}
 			EV_SET(&ev[n], fileno(fp), EVFILT_READ,
-				EV_ADD | EV_ENABLE, 0, 0, 0);
+			    EV_ADD | EV_ENABLE, 0, 0, 0);
 			n++;
 
-			if (kevent(kq, ev, n, NULL, 0, NULL) < 0) {
+			if (kevent(kq, ev, n, NULL, 0, NULL) == -1) {
 				close(kq);
 				kq = -1;
 				action = USE_SLEEP;
@@ -224,7 +224,7 @@
 			break;
 
 		case USE_KQUEUE:
-			if (kevent(kq, NULL, 0, ev, 1, NULL) < 0)
+			if (kevent(kq, NULL, 0, ev, 1, NULL) == -1)
 				xerr(1, "kevent");
 
 			if (ev[0].filter == EVFILT_VNODE) {
@@ -290,7 +290,7 @@
 #define MMAP_MAXSIZE  (10 * 1024 * 1024)
 
 	if (!(file_size = sbp->st_size))
-		return (0);
+		return 0;
 	file_remaining = file_size;
 
 	if (file_remaining > MMAP_MAXSIZE) {
@@ -306,7 +306,7 @@
 			     MAP_FILE|MAP_SHARED, fileno(fp), mmap_offset);
 		if (start == MAP_FAILED) {
 			xerr(0, "%s", fname);
-			return (1);
+			return 1;
 		}
 
 		mmap_remaining = mmap_size;
@@ -327,7 +327,7 @@
 
 		if (munmap(start, mmap_size)) {
 			xerr(0, "%s", fname);
-			return (1);
+			return 1;
 		}
 
 		if (mmap_offset >= MMAP_MAXSIZE) {
@@ -345,7 +345,7 @@
 	file_remaining += mmap_size - mmap_remaining;
 	if (munmap(start, mmap_size)) {
 		xerr(0, "%s", fname);
-		return (1);
+		return 1;
 	}
 
 	/*
@@ -355,7 +355,7 @@
 	 */
 	if (fseeko(fp, file_remaining, SEEK_SET) == -1) {
 		ierr();
-		return (1);
+		return 1;
 	}
-	return (0);
+	return 0;
 }

Index: src/usr.bin/tail/read.c
diff -u src/usr.bin/tail/read.c:1.16 src/usr.bin/tail/read.c:1.17
--- src/usr.bin/tail/read.c:1.16	Sat Sep  3 05:02:20 2011
+++ src/usr.bin/tail/read.c	Sat Sep  3 06:59:10 2011
@@ -1,4 +1,4 @@
-/*	$NetBSD: read.c,v 1.16 2011/09/03 09:02:20 christos Exp $	*/
+/*	$NetBSD: read.c,v 1.17 2011/09/03 10:59:10 christos Exp $	*/
 
 /*-
  * Copyright (c) 1991, 1993
@@ -37,7 +37,7 @@
 #if 0
 static char sccsid[] = "@(#)read.c	8.1 (Berkeley) 6/6/93";
 #endif
-__RCSID("$NetBSD: read.c,v 1.16 2011/09/03 09:02:20 christos Exp $");
+__RCSID("$NetBSD: read.c,v 1.17 2011/09/03 10:59:10 christos Exp $");
 #endif /* not lint */
 
 #include <sys/types.h>
@@ -82,7 +82,7 @@
 	}
 	if (ferror(fp)) {
 		ierr();
-		return (1);
+		return 1;
 	}
 
 	if (rflag) {
@@ -115,7 +115,7 @@
 		if ((len = p - sp) != 0)
 			WR(sp, len);
 	}
-	return (0);
+	return 0;
 }
 
 /*
@@ -181,7 +181,7 @@
 	if (ferror(fp)) {
 		free(lines);
 		ierr();
-		return (1);
+		return 1;
 	}
 	if (cnt) {
 		lines[recno].l = sp;
@@ -206,5 +206,5 @@
 			WR(lines[cnt].l, lines[cnt].len);
 	}
 	free(lines);
-	return (0);
+	return 0;
 }

Index: src/usr.bin/tail/reverse.c
diff -u src/usr.bin/tail/reverse.c:1.22 src/usr.bin/tail/reverse.c:1.23
--- src/usr.bin/tail/reverse.c:1.22	Sat Sep  3 06:35:13 2011
+++ src/usr.bin/tail/reverse.c	Sat Sep  3 06:59:11 2011
@@ -1,4 +1,4 @@
-/*	$NetBSD: reverse.c,v 1.22 2011/09/03 10:35:13 christos Exp $	*/
+/*	$NetBSD: reverse.c,v 1.23 2011/09/03 10:59:11 christos Exp $	*/
 
 /*-
  * Copyright (c) 1991, 1993
@@ -37,7 +37,7 @@
 #if 0
 static char sccsid[] = "@(#)reverse.c	8.1 (Berkeley) 6/6/93";
 #endif
-__RCSID("$NetBSD: reverse.c,v 1.22 2011/09/03 10:35:13 christos Exp $");
+__RCSID("$NetBSD: reverse.c,v 1.23 2011/09/03 10:59:11 christos Exp $");
 #endif /* not lint */
 
 #include <sys/param.h>
@@ -121,7 +121,7 @@
 	}
 
 	if ((start = mmap(NULL, (size_t)size, PROT_READ,
-	    MAP_FILE|MAP_SHARED, fileno(fp), (off_t)0)) == (caddr_t)-1) {
+	    MAP_FILE|MAP_SHARED, fileno(fp), (off_t)0)) == MAP_FAILED) {
 		xerr(0, "%s", fname);
 		return;
 	}
@@ -186,7 +186,7 @@
 			}
 			tl = tl->next;
 			enomem += tl->len;
-		} else if ((tl = malloc(sizeof(BF))) == NULL ||
+		} else if ((tl = malloc(sizeof(*tl))) == NULL ||
 		    (tl->l = malloc(BSZ)) == NULL) {
 			if (tl)
 				free(tl);
@@ -229,9 +229,7 @@
 	}
 
 	if (enomem) {
-		(void)fprintf(stderr,
-		    "tail: warning: %lld bytes discarded\n", (long long)enomem);
-		rval = 1;
+		xerrx(0, "Warning: %lld bytes discarded", (long long)enomem);
 	}
 
 	/*

Index: src/usr.bin/tail/tail.c
diff -u src/usr.bin/tail/tail.c:1.15 src/usr.bin/tail/tail.c:1.16
--- src/usr.bin/tail/tail.c:1.15	Sat Sep  3 05:02:20 2011
+++ src/usr.bin/tail/tail.c	Sat Sep  3 06:59:11 2011
@@ -40,7 +40,7 @@
 #if 0
 static char sccsid[] = "@(#)tail.c	8.1 (Berkeley) 6/6/93";
 #endif
-__RCSID("$NetBSD: tail.c,v 1.15 2011/09/03 09:02:20 christos Exp $");
+__RCSID("$NetBSD: tail.c,v 1.16 2011/09/03 10:59:11 christos Exp $");
 #endif /* not lint */
 
 #include <sys/types.h>
@@ -55,9 +55,8 @@
 int fflag, rflag, rval;
 const char *fname;
 
-int	main(int, char **);
 static void obsolete(char **);
-static void usage(void);
+static void usage(void) __dead;
 
 int
 main(int argc, char *argv[])
@@ -69,6 +68,7 @@
 	int ch, first;
 	char *p;
 
+	setprogname(argv[0]);
 	off = 0;
 	/*
 	 * Tail's options are weird.  First, -n10 is the same as -n-10, not
@@ -133,7 +133,8 @@
 	argv += optind;
 
 	if (fflag && argc > 1)
-		xerrx(1, "-f and -F options only appropriate for a single file");
+		xerrx(1,
+		    "-f and -F options only appropriate for a single file");
 
 	/*
 	 * If displaying in reverse, don't permit follow option, and convert
@@ -298,6 +299,7 @@
 usage(void)
 {
 	(void)fprintf(stderr,
-	    "usage: tail [-f | -F | -r] [-b # | -c # | -n #] [file ...]\n");
+	    "Usage: %s [-f | -F | -r] [-b # | -c # | -n #] [file ...]\n",
+	    getprogname());
 	exit(1);
 }

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