blob: 3f7aecdbe5328b47a9b633f390594a162884c5ff (
plain) (
tree)
|
|
/*
* Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#include <sys/mman.h>
int switcheroo(int fd, int prot, void *from, void *to, int size)
{
if(munmap(to, size) < 0){
return(-1);
}
if(mmap(to, size, prot, MAP_SHARED | MAP_FIXED, fd, 0) != to){
return(-1);
}
if(munmap(from, size) < 0){
return(-1);
}
return(0);
}
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/
|
