| /* |
| * 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: |
| */ |
