# include <stdio.h>
# include <conio.h>
# include <string.h>

struct teledir{
        long teleno ;
        char name[20];
        char address[20];
};

main()
{
    struct teledir t;
    FILE *fp;
    long tno;
    char sname[20],c;
    int ch;
    while(1)
    {
        clrscr();
        printf("\t\t\t\tMENU\n");
        printf("1. TO ADD THE RECORD IN THE FILE.\n");
        printf("2. TO SEARCH THE RECORD BY NAME.\n");
        printf("3. TO SERACH THE RECORD BY TELEPHONE NUMBER.\n");
        printf("4. TO SEE ALL THE RECORD.");
        printf("5. TO EXIT.\n");
        printf("ENTER YOUR CHOICE:->");
        scanf("%d",&ch);
        switch(ch)
        {
            case 1:
                    fp=fopen("telephon.txt","ab");
                    while (1)
                    {
                      clrscr();
                      printf("ENTER THE TELEPHONE NUMBER:->");
                      scanf("%ld",&t.teleno);
                      fflush(stdin);
                      printf("\nENTER THE NAME               :->");
                      scanf("%s",t.name);
                      fflush(stdin);
                      printf("\nENTER THE ADDRESS            :->");
                      scanf("%s",t.address);
                      fwrite(&t,sizeof(t),1,fp);
                      fflush(stdin);
                      printf("\n\nWISH TO CONTINUE?(Y/N)");
                      scanf("%c",&c);
                      if(c=='n' || c=='N')
                            break;
                    }
                    fclose(fp);
                    break;
            case 2:
                    fp=fopen("telephon.txt","rb");
                    clrscr();
                    printf("ENTER THE NAME    :->");
                    scanf("%s",sname);
                    while(fread(&t,sizeof(t),1,fp))
                    {
                        if(strcmp(sname,t.name)==0)
                        {
                            printf("\n\t%ld\t %s\t %s",t.teleno,t.name,t.address);
                            getch();
                            break;
                        }
                    }
                    fclose(fp);
                    getch();
                    break;
            case 4:
                    exit(1);
        }
    }
        getch();

}