From: Ville Ylenius <ville-xG8NWnMrmhjR7s880joybQ@public.gmane.org>
To: mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Cc: linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Typo in example code of process_vm_readv
Date: Sat, 16 Aug 2014 14:35:16 +0300 [thread overview]
Message-ID: <53EF41F4.2030509@ylenius.net> (raw)
Hi,
there is a small typo in the example code of the man page of
"process_vm_readv"
(http://man7.org/linux/man-pages/man2/process_vm_readv.2.html):
#include <sys/uio.h>
int
main(void)
{
struct iovec local[2];
struct iovec remote[1];
char buf1[10];
char buf2[10];
ssize_t nread;
pid_t pid = 10; /* PID of remote process */
local[0].iov_base = buf1;
local[0].iov_len = 10;
local[1].iov_base = buf2;
local[1].iov_len = 10;
remote[0].iov_base = (void *) 0x10000;
remote[1].iov_len = 20; /**** <---- TYPO: 1 --> 0 ****/
nread = process_vm_readv(pid, local, 2, remote, 1, 0);
if (nread != 20)
return 1;
else
return 0;
}
There is no two objects in "remote"-array so program corrupts other
variables memory.
Please change
remote[1].iov_len = 20;
to
remote[0].iov_len = 20;
Thank you!
- Ville Ylenius
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next reply other threads:[~2014-08-16 11:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-16 11:35 Ville Ylenius [this message]
[not found] ` <53EF41F4.2030509-xG8NWnMrmhjR7s880joybQ@public.gmane.org>
2014-08-17 15:53 ` Typo in example code of process_vm_readv Michael Kerrisk (man-pages)
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