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make: in loadfile, use simpler magic numbers 

No functional change.
This commit is contained in:
rillig 2022-01-07 21:04:50 +00:00
parent 99e2f0ba08
commit b6944f8804
1 changed files with 4 additions and 5 deletions
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9
usr.bin/make/parse.c
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@ -1,4 +1,4 @@
/* $NetBSD: parse.c,v 1.633 2022/01/07 21:00:49 rillig Exp $ */
/* $NetBSD: parse.c,v 1.634 2022/01/07 21:04:50 rillig Exp $ */
/*
* Copyright (c) 1988, 1989, 1990, 1993
@ -106,7 +106,7 @@
#include "pathnames.h"
/* "@(#)parse.c 8.3 (Berkeley) 3/19/94" */
MAKE_RCSID("$NetBSD: parse.c,v 1.633 2022/01/07 21:00:49 rillig Exp $");
MAKE_RCSID("$NetBSD: parse.c,v 1.634 2022/01/07 21:04:50 rillig Exp $");
/*
* A file being read.
@ -305,14 +305,13 @@ loadfile(const char *path, int fd)
struct stat st;
bufSize = fstat(fd, &st) == 0 && S_ISREG(st.st_mode) &&
st.st_size >= 1 && st.st_size <= 0x3fffffff
st.st_size > 0 && st.st_size < 1024 * 1024 * 1024
? (size_t)st.st_size : 1024;
Buf_InitSize(&buf, bufSize);
for (;;) {
if (buf.len == buf.cap) {
if (buf.cap > 0x1fffffff) {
errno = EFBIG;
if (buf.cap >= 512 * 1024 * 1024) {
Error("%s: file too large", path);
exit(2); /* Not 1 so -q can distinguish error */
}