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tcopy: Pick up max blocksize from sysctl kern.maxphys

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This commit is contained in:
Poul-Henning Kamp 2023-08-10 14:56:53 +00:00
parent 0eb8cd1de2
commit 4ff782c06a
1 changed files with 6 additions and 0 deletions
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6
usr.bin/tcopy/tcopy.c
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@ -52,6 +52,7 @@ static const char sccsid[] = "@(#)tcopy.c 8.2 (Berkeley) 4/17/94";
#include <errno.h>
#include <fcntl.h>
#include <paths.h>
#include <sys/sysctl.h>
#include <signal.h>
#include <stdint.h>
#include <stdio.h>
@ -82,6 +83,11 @@ main(int argc, char *argv[])
int ch, needeof;
char *buff;
const char *inf;
unsigned long maxphys = 0;
size_t l_maxphys = sizeof maxphys;
if (!sysctlbyname("kern.maxphys", &maxphys, &l_maxphys, NULL, 0))
maxblk = maxphys;
msg = stdout;
guesslen = 1;