Manual Pages for UNIX Operating System command usage for man kvm_write

Kernel VM Library Functions                        kvm_read(3KVM)



NAME
     kvm_read, kvm_write - copy data to or from a kernel image or
     running system

SYNOPSIS
     cc [ flag... ] file... -lkvm [ library...]
     #include 

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


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


DESCRIPTION
     The kvm_read() function transfers data from the kernel image
     specified by kd (see kvm_open(3KVM)) to the address space of
     the process. nbytes bytes of data are copied from the kernel
     virtual  address  given  by addr to the buffer pointed to by
     buf.


     The kvm_write() function is like kvm_read(), except that the
     direction  of  data  transfer is reversed. To use this func-
     tion, the kvm_open(3KVM) call that  returned  kd  must  have
     specified  write access. If a user virtual address is given,
     it is resolved in the address space of the process specified
     in the most recent kvm_getu(3KVM) call.

USAGE
     The kvm_read() and kvm_write() functions  are  obsolete  and
     might   be  removed  in  a  future  release.  The  functions
     described on the kvm_kread(3KVM) manual page should be  used
     instead.

RETURN VALUES
     On success, these functions return the number of bytes actu-
     ally transferred. On failure, they return -1.

ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:













SunOS 5.11           Last change: 2 May 2002                    1






Kernel VM Library Functions                        kvm_read(3KVM)



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Interface Stability         | Obsolete                    |
    |_____________________________|_____________________________|
    | MT-Level                    | Unsafe                      |
    |_____________________________|_____________________________|


SEE ALSO
     kvm_getu(3KVM),              kvm_kread(3KVM)kvm_nlist(3KVM),
     kvm_open(3KVM), attributes(5)











































SunOS 5.11           Last change: 2 May 2002                    2