// ----------------------------------------------------------

#include <stdio.h>

#include <io.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>

#include <string.h>

struct telinfo {
	char number[16];
	char name[128];
};

void output_teldata(struct telinfo teldata)
{
  printf("Tel : %s\n",   teldata.number);
  printf("name: %s\n",   teldata.name);
}

int search_teldata(struct telinfo *teldata,int num,char *number)
{
  int i;

  for(i=0;i<num;i++)
    if(!strcmp(teldata[i].number,number))
      return i;

  return -1;

}

int match_teldata(struct telinfo teldata,char *number)
{
	int re=0;
	
	if(!strcmp(teldata.number,number))
		re=1;

	return re;
}

void main()
{
	char line[128];
	int fd,re;
	char fname[128];
	char ch;
	int i=0,j=0;
    struct telinfo teldata[4096];
	char number[16];

	printf("Input Filename: ");
	gets(fname);

	fd=open(fname,O_RDONLY);
	if(fd== -1){
		printf("%s No such file\n");
		return;
	}

	while(1){
		re=read(fd,&ch,1);
		if(re==0)
			break;
		if(ch=='\n'){
			sscanf(line,"%s %s",teldata[j].number,teldata[j].name);
			i=0;
			j = j + 1;
		}else{
			line[i]=ch;
			i = i + 1;
			line[i]='\0';
		}
	}

	close(fd);

//	for(i=0;i<j;i++)
//		printf("[%4d] %s : %s\n",i,teldata[i].number,teldata[i].name);

  while(1){
    printf("Search Tel?: ");
    gets(number);

	for(i=0;i<j;i++)
		if(match_teldata(teldata[i],number))
	      output_teldata(teldata[i]);
  }

}

// ----------------------------------------------------------