Bdays.c
Bday.c

Bdays.c

/* * * * * * * * * * * * * * * * * * * * * * * *
 *                                             * Author:
 *                                             *       Rajesh _ThE gReAt
 *                                             * License:
 *                                             *     This program is freely
 *   My ][ nd program using data structures !  *   distributable under GNU
 *                                             *   public license .I hope u
 *                                             *   keep my name while
 *					       *   distributing this program
 *		 -By Rajesh _ThE gReAt	       *	bye
 *					       *	Rajesh _ThE gReAt
 * * * * * * * * * * * * * * * * * * * * * * * */

#include<stdio.h>
#include<conio.h>
#include<dos.h>
#include<math.h>
#include<string.h>
#include<ctype.h>
#include<stdlib.h>
#include<rajesh.h>

union bday
{
	struct birthday
	{
		char name[30];
		int day;

		int month;
	} date;
	char bytes[sizeof(struct birthday)];
};

struct dosdate_t real_date;

main(int no_of_args,char *args[])
{
	if(no_of_args == 1)	/* No arguments input */
	{
		print_help();
	}
	else if(!strcmpi(args[1],"ip"))
		input_mode();
	else if(!strcmpi(args[1],"op"))
		output_mode();
	else if(!strcmpi(args[1],"flush"))
		flush_file();
}
input_mode()
{
	union bday a;
	int i;
	char ans[3];
	char buffer;
	FILE *fopen(),
	     *fp;
    do
    {
	clrscr();

	printf("\nEnter subject\'s name:");

	fflush(stdin);
	for(i = 0;(buffer = getchar()) != '\n';i++)
		a.date.name[i]=buffer;
	a.date.name[i] = '\0';

	do
	{
		printf("\nEnter the day of subject\'s birth:");
		scanf("%d",&a.date.day);
	}
	while(a.date.day > 31 || a.date.day < 1);

	do
	{
		printf("\nEnter the month of subject\'s birth (jan = 1 etc.):");
		scanf("%d",&a.date.month);
	}
	while(a.date.month > 12 || a.date.month < 1);

	fp = fopen("bdays.dat","a+");
	for(i=0;i<sizeof(a);i++)
		putc(a.bytes[i],fp);
	fclose(fp);

	do
	{
		printf("\nDo you want to enter another subject ? (y/n/o)\n\t[y]=yes\t[n]=no\t[o]=go to output mode\nYor option:");
		scanf("%s",ans);
		if(*ans != 'o' && *ans != 'O' && *ans != 'y' && *ans != 'Y' && *ans != 'n' && *ans != 'N')
			printf("\nInvalid switch %c",*ans);
	}
	while(*ans != 'o' && *ans != 'O' && *ans != 'y' && *ans != 'Y' && *ans != 'n' && *ans != 'N');
    }
    while(*ans=='y' || *ans == 'Y');
    if(*ans == 'o' || *ans == 'O')
	output_mode();
}
print_help()
{
	char buffer[10];

	printf("\nBirthday remebering utility by Rajesh\n\n");
	printf("\nSyntax\n");
	printf("\nBdays [ip] : For inputting birthdays");
	printf("\nBdays [op] : For getting data stored");
	printf("\nBdays [flush] : For flushing the store file ( NOT recommended ) ");
	printf("\nNow you can enter any one of the modes \n");
	printf("\nEnter your choice [ip][op][q to quit]\t");

	scanf("%s",buffer);

	if(!strcmpi(buffer,"ip"))
		input_mode();
	else if(!strcmpi(buffer,"op"))
		output_mode();
	else if(!strcmpi(buffer,"q"))
		exit(0);
}
output_mode()
{
	FILE *fopen(),
	     *fp;
	char c;
	int i;
	unsigned short no_bdays = 1;
	union bday a;
	_dos_getdate(&real_date);
	fp = fopen("bdays.dat","r");
	fseek(fp,0L,0);
	while((c=getc(fp))!=EOF)
	{
		a.bytes[0]=c;
		for(i=1;i<(sizeof(a));i++)
			a.bytes[i]=getc(fp);

		if(real_date.day == a.date.day && real_date.month == a.date.month)
		{
			today(a.date.name);
			no_bdays=0;
		}
	}
	if(no_bdays)
		printf("\nNo Birthdays 2day");
	fclose(fp);
}

today(char name[30])
{
	int i;
	printf("Wish a happy birth day to %s",name);
	while(!kbhit())
	{
		delay(100);
		for(i=0;i<strlen(name);i++)
			printf("\b");
		for(i=0;i<strlen(name);i++)
			putchar(' ');
		delay(50);
		for(i=0;i<strlen(name);i++)
			printf("\b");
		printf("%s",name);
		delay(100);
	}
	getch();
}

flush_file()
{
	FILE *fopen();
	FILE *fp;
	char buffer[4];
	printf("\nDo you really want to flush the file [y]/[n]");
	scanf("%s",buffer);
	if(*buffer == 'y' || *buffer == 'Y')
	{
		fp = fopen("bdays.dat","w");
		fflush(fp);
		printf("\nFile flushed !");
	}
}

Bday.c

/*  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *
 *                                                                          *
 *  A program using data structures ..                                      *
 *             Author : Rajesh _ThE gReAt                                   *
 *                                                                          *
 *	       This program uses data structures to store birthdays and if  *
 *  birthday is today prints a message saying so.It has one drawback though *
 *  it dosen't store birthdays into disk and hence looses them the moment   *
 *  it is removed from ram...                                               *
 *	Licence : Distributable under GNU public license                    *
 *                I hope u keep my name intact....                          *
 *                                                                          *
 *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  * */

#include<stdio.h>
#include<conio.h>
#include<dos.h>
#include<math.h>
#include<string.h>
#include<ctype.h>
#include<stdlib.h>
#include<rajesh.h>

struct bday
{
	char name[30];
	int day;
	int month;
	struct bday *next;
};

struct bday *new_node();

main()
{
	struct bday *p,
		    *list = NULL,
		    *new_node();
	char reply[10];		/* Holds user's reply 'y' or 'n' */
	do
	{
		*p = new_node();
		if(*p = NULL)
		{
			printf("\nNot enough memory...");
			*reply = 'n';
		}
		else
		{
			get_data(&p);
			add_node(&p,&list);
			printf("\nAdd another Birtday(y/n) ");
			scanf("%9s",reply);
		}
	}
	while(*reply == 'y' || *reply == 'Y');
}
struct bday new_node()
{
	struct bday *malloc();
	return(malloc(sizeof(struct bday)));
}
get_data(node)
struct bday *node;
{
	printf("\nEnter the name:");
	gets(node->name);
	printf("\nEnter the birthday (Eg.13/11 for 13th november) :");
	scanf("%d/%d",node->day,node->month);
	return 0;	/* Keep compiler happy */
}
add_node(node,list)
struct bday *list;
{
	node->next = list;
	list = node;
	return 0;	/* Keep compiler happy */
}