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- #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);
- }
- }
-