/*
 *libproc
 *
 *common utilities needed to process /proc.
 *
 *A library interface for finding process information from /proc.
 *This is also an interface into various things which haven't yet been integrated into sysfs,
 *  as appropriate.

 Copyright (C) 2004  Joseph Pingenot
 
 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Lesser General Public
 License as published by the Free Software Foundation; either
 version  2.1  of  the  License, or (at your option) any later
 version.
                                                                                                       
 This library is distributed in the hope that it will be  useful,
 but  WITHOUT  ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 Lesser General Public License for more details.
                                                                                                       
 You  should  have  received  a copy of the GNU Lesser General Public
 License along with this library; if not, write  to  the  Free Software
 Foundation,  Inc.,  59  Temple  Place,  Suite 330, Boston, MA 02111-1307  USA

*/

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

#define BUFFLEN 3

int main(void) {
  int fd;
  char* file;
  int buffread;
  char buff[BUFFLEN];
  int buffpoint;

  //file = "/proc/acpi/battery/BAT0/info";
  file = "test-openfile.c";
  /*Alright.  Now we open up the info file for reading.*/
  if((fd = open(file, O_RDONLY)) < 0){
    /*Open failed.  return.*/
    return -1;
  }
  while(1) {
    printf("*WHILE: buffread=%d, BUFFLEN=%d, fd=%d\n", buffread, BUFFLEN, fd);
    buffread = read(fd, buff, BUFFLEN);
    printf("*WHILE: buffread=%d, BUFFLEN=%d, fd=%d\n", buffread, BUFFLEN, fd);
    printf(" errno=%d\n", errno);
    if(buffread <= 0) break;
    /*Now walk through buff, copying until we hit a colon*/
    printf("buff='");
    for(buffpoint = 0; buffpoint < buffread; buffpoint++){
      printf("%c", buff[buffpoint]);
    }
    printf("'\n");
  }

  return 0;
}