c/mmap/mmap.c

   1 #include <stdio.h>
   2 #include <fcntl.h>
   3 #include <sys/mman.h>
   4 #include <sys/stat.h>
   5 #include <sys/types.h>
   6
   7 unsigned char *fmmap(FILE *fd) {
   8         struct stat sb;
   9
  10         if(!fd) perror("");
  11         fd = fileno(fd);
  12         fstat((int)fd, &sb);
  13         return mmap(0, sb.st_size, PROT_READ, MAP_PRIVATE, (int)fd, 0);
  14 }
  15
  16 int main() {
  17         FILE *fd;
  18         unsigned char *mm;
  19
  20         fd = fopen("mmap.c", "r");
  21         mm = fmmap(fd);
  22
  23         perror("Status");
  24         puts(mm);
  25
  26         //munmap(mm, 10);
  27         fclose(fd);
  28 }