icon Top 9 categories map      RocketAware > man pages >

kvm_read(3)

Tips: Browse or Search all pages for efficient awareness of more than 6000 of the most popular reusable and open source applications, functions, libraries, and FAQs.


The "RKT couplings" below include links to source code, updates, additional information, advice, FAQs, and overviews.


Home

Search all pages


Subjects

By activity
Professions, Sciences, Humanities, Business, ...

User Interface
Text-based, GUI, Audio, Video, Keyboards, Mouse, Images,...

Text Strings
Conversions, tests, processing, manipulation,...

Math
Integer, Floating point, Matrix, Statistics, Boolean, ...

Processing
Algorithms, Memory, Process control, Debugging, ...

Stored Data
Data storage, Integrity, Encryption, Compression, ...

Communications
Networks, protocols, Interprocess, Remote, Client Server, ...

Hard World
Timing, Calendar and Clock, Audio, Video, Printer, Controls...

File System
Management, Filtering, File & Directory access, Viewers, ...

    

RocketLink!--> Man page versions: OpenBSD FreeBSD Others



KVM_READ(3)               OpenBSD Programmer's Manual              KVM_READ(3)

NAME
     kvm_read, kvm_write - read or write kernel virtual memory



SYNOPSIS
     #include <kvm.h>

     ssize_t
     kvm_read(kvm_t *kd, u_long addr, void *buf, size_t nbytes);

     ssize_t
     kvm_write(kvm_t *kd, u_long addr, const void *buf, size_t nbytes);

DESCRIPTION
     The kvm_read() and kvm_write() functions are used to read and write ker-
     nel virtual memory (or a crash dump file). See kvm_open(3) or
     kvm_openfiles(3) for information regarding opening kernel virtual memory
     and crash dumps.

     The kvm_read() function transfers nbytes bytes of data from the kernel
     space address addr to buf. Conversely, kvm_write() transfers data from
     buf to addr. Unlike their SunOS counterparts, these functions cannot be
     used to read or write process address spaces.

RETURN VALUES
     Upon success, the number of bytes actually transferred is returned.  Oth-
     erwise, -1 is returned.

SEE ALSO
     kvm(3),  kvm_close(3),  kvm_getargv(3),  kvm_getenvv(3),  kvm_geterr(3),
     kvm_getprocs(3),  kvm_nlist(3),  kvm_open(3),  kvm_openfiles(3)

OpenBSD 2.6                      June 4, 1993                                1

Source: OpenBSD 2.6 man pages. Copyright: Portions are copyrighted by BERKELEY
SOFTWARE DESIGN, INC., The Regents of the University of California, Massachusetts
Institute of Technology, Free Software Foundation, FreeBSD Inc., and others.



(Corrections, notes, and links courtesy of RocketAware.com)


[Detailed Topics]
FreeBSD Sources for kvm_read(3) functions
OpenBSD sources for kvm_read(3)


[Overview Topics]

Up to: Memory blocks (Sometimes called "Byte Strings") - Memory blocks. Allocated, shared, mmaped, kernel et al


RocketLink!--> Man page versions: OpenBSD FreeBSD Others






Rapid-Links: Search | About | Comments | Submit Path: RocketAware > man pages > kvm_read.3/
RocketAware.com is a service of Mib Software
Copyright 1999, Forrest J. Cavalier III. All Rights Reserved.
We welcome submissions and comments