Module Name:    src
Committed By:   rillig
Date:           Sat Jan 14 09:21:58 UTC 2023

Modified Files:
        src/usr.bin/xlint/common: param.h
        src/usr.bin/xlint/xlint: xlint.c

Log Message:
lint: remove unnecessary MBLKSIZ, use stack buffer in xlint

No functional change.


To generate a diff of this commit:
cvs rdiff -u -r1.9 -r1.10 src/usr.bin/xlint/common/param.h
cvs rdiff -u -r1.95 -r1.96 src/usr.bin/xlint/xlint/xlint.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/xlint/common/param.h
diff -u src/usr.bin/xlint/common/param.h:1.9 src/usr.bin/xlint/common/param.h:1.10
--- src/usr.bin/xlint/common/param.h:1.9	Tue Aug  3 17:27:48 2021
+++ src/usr.bin/xlint/common/param.h	Sat Jan 14 09:21:58 2023
@@ -1,4 +1,4 @@
-/*	$NetBSD: param.h,v 1.9 2021/08/03 17:27:48 rillig Exp $	*/
+/*	$NetBSD: param.h,v 1.10 2023/01/14 09:21:58 rillig Exp $	*/
 
 /*
  * Copyright (c) 1994, 1995 Jochen Pohl
@@ -32,12 +32,6 @@
  */
 
 /*
- * The size of memory blocks which are used to allocate memory in larger
- * chunks.
- */
-#define	MBLKSIZ		((size_t)0x4000)
-
-/*
  * Sizes of hash tables
  * Should be primes. Possible primes are
  * 307, 401, 503, 601, 701, 809, 907, 1009, 1103, 1201, 1301, 1409, 1511.

Index: src/usr.bin/xlint/xlint/xlint.c
diff -u src/usr.bin/xlint/xlint/xlint.c:1.95 src/usr.bin/xlint/xlint/xlint.c:1.96
--- src/usr.bin/xlint/xlint/xlint.c:1.95	Sat Oct  1 09:48:02 2022
+++ src/usr.bin/xlint/xlint/xlint.c	Sat Jan 14 09:21:58 2023
@@ -1,4 +1,4 @@
-/* $NetBSD: xlint.c,v 1.95 2022/10/01 09:48:02 rillig Exp $ */
+/* $NetBSD: xlint.c,v 1.96 2023/01/14 09:21:58 rillig Exp $ */
 
 /*
  * Copyright (c) 1996 Christopher G. Demetriou.  All Rights Reserved.
@@ -38,7 +38,7 @@
 
 #include <sys/cdefs.h>
 #if defined(__RCSID)
-__RCSID("$NetBSD: xlint.c,v 1.95 2022/10/01 09:48:02 rillig Exp $");
+__RCSID("$NetBSD: xlint.c,v 1.96 2023/01/14 09:21:58 rillig Exp $");
 #endif
 
 #include <sys/param.h>
@@ -915,36 +915,31 @@ static void
 cat(char *const *srcs, const char *dest)
 {
 	int	ifd, ofd, i;
-	char	*src, *buf;
+	char	*src;
 	ssize_t	rlen;
+	char	buf[0x4000];
 
 	if ((ofd = open(dest, O_WRONLY | O_CREAT | O_TRUNC, 0666)) == -1) {
 		warn("cannot open %s", dest);
 		terminate(-1);
 	}
 
-	buf = xmalloc(MBLKSIZ);
-
 	for (i = 0; (src = srcs[i]) != NULL; i++) {
 		if ((ifd = open(src, O_RDONLY)) == -1) {
-			free(buf);
 			warn("cannot open %s", src);
 			terminate(-1);
 		}
 		do {
-			if ((rlen = read(ifd, buf, MBLKSIZ)) == -1) {
-				free(buf);
+			if ((rlen = read(ifd, buf, sizeof(buf))) == -1) {
 				warn("read error on %s", src);
 				terminate(-1);
 			}
 			if (write(ofd, buf, (size_t)rlen) == -1) {
-				free(buf);
 				warn("write error on %s", dest);
 				terminate(-1);
 			}
-		} while (rlen == MBLKSIZ);
+		} while (rlen == sizeof(buf));
 		(void)close(ifd);
 	}
 	(void)close(ofd);
-	free(buf);
 }

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