#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>

char *slurp(char *file, size_t *len) {
  struct stat s;
  char *buf;
  int fd;
  if (stat(file, &s) == -1) {
      fprintf(stderr,"can't stat %s: %s\n", file, strerror(errno));
      exit(-1);
  }
  *len = s.st_size;
  if ( (fd = open(file, O_RDONLY)) == -1) {
      fprintf(stderr,"can't open %s: %s\n", file, strerror(errno));
      exit(-1);
  }
  buf = malloc(*len);
  if (buf) {
    if (read(fd, buf,*len) != *len) {
       fprintf(stderr,"incomplete read\n");
       exit(-1);
    }
  }
  close(fd);
  return buf;
}