27 lines
499 B
C
27 lines
499 B
C
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/mman.h>
|
|
#include <string.h>
|
|
|
|
#ifndef MAP_NORESERVE
|
|
#define MAP_NORESERVE 0
|
|
#endif
|
|
|
|
volatile char ch;
|
|
|
|
main(){
|
|
struct stat statbuf;
|
|
uchar *buf;
|
|
fstat(0, &statbuf);
|
|
buf = mmap(NULL, statbuf.st_size, PROT_READ, MAP_SHARED|MAP_NORESERVE,
|
|
0, 0);
|
|
if(buf != (uchar*)(-1)){
|
|
uchar *cur, *lim = &buf[statbuf.st_size];
|
|
for(cur = buf; buf != lim; ++cur){
|
|
ch = *cur;
|
|
}
|
|
munmap(buf, statbuf.st_size);
|
|
}
|
|
}
|