sms.c

#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
#include<time.h>
#include<windows.h>
typedef struct Node node; // Create new name for struct Node---> node
struct Node
{
 char name[50];
 char last_name[50];
 char student_id[30];
 char gender[10];
 char email[50];
 char father_name[50];
 char mother_name[50];
 char date_of_birth[50];
 node *next;
} std,*head=NULL;
void change_password();//to change password
void display_student(); //to show student's details
void add_new_student(); //To add student's info in list
void remove_student(); //to delete student's info in list
void modify_student_data(); //to change student's info in list
void search_student(); //to search student's info in list
void intro(); //Log in page
void date_time(); //date and time
void break_t(unsigned int t); //Loading...
void print_title();//to show title
void saved_data(); //to save data to linked list
void generate_student_id(char student_id[]) {
 // Define the length of the student ID
 int id_length = 12;
 // Define the pool of characters to choose from
 char characters[] = 
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
 // Seed the random number generator
 srand(time(NULL));
 // Generate the random student ID
 for (int i = 0; i < id_length; i++) {
 student_id[i] = characters[rand() % (sizeof(characters) - 1)];
 }
 student_id[id_length] = '\0';
}
FILE *file,*f1;
int f=0,m=0; //f for Female && m for Male
char rtrv[100],wrtn[100],match[100]; // password restore from file [rtrv]
//password written to file [wrtn]
//password match [match]
void change_password()
{
 int k=0;
 setConsoleColor(15 , 12);
 print_title();
 f1=fopen("password.txt","w");
 printf("\n\t\t\t->Enter New Password: ");
 scanf("%s",wrtn);
 if(strcmp(rtrv,wrtn)==0)
 {
 printf("\n\t\t\tPassword Matched with Old Password.\n");
 k=1;
 }
 fprintf(f1,"%s",wrtn);
 if(k==0)
 {
 do
 {
 printf("\n\t\t\t->Confirm Password:");
 scanf("%s",match);
 if(strcmp(wrtn,match)!=0)
 printf("\n\t\t\tPassword not match. Plz try again\n\n");
 }
 while(strcmp(wrtn,match)!=0);
 }
 if(k==0)
 {
 printf("\n\t\t\tYour Password was changed successfully.\n\n");
 }
 printf("\n");
 system("pause"); //Make the screen wait for a key press.
}
void saved_data()
{
 node *temp,*new_node;
 f=0;
 m=0;
 head=NULL;
 rewind(file); //move file position indicator to the beginning
 while((fread(&std,sizeof(std),1,file))==1)
 {
 temp=(node*)malloc(sizeof(node));
 strcpy(temp->name,std.name);
 strcpy(temp->last_name,std.last_name);
 strcpy(temp->student_id,std.student_id);
 strcpy(temp->gender,std.gender);
 if(strcmp(temp->gender,"F")==0||strcmp(temp->gender,"f")==0)
 f++;
 if(strcmp(temp->gender,"M")==0||strcmp(temp->gender,"m")==0)
 m++;
 strcpy(temp->father_name,std.father_name);
 strcpy(temp->mother_name,std.mother_name);
 strcpy(temp->date_of_birth,std.date_of_birth);
 temp->next=NULL;
 if(head==NULL)
 {
 head=temp;
 new_node=temp;
 }
 else
 {
 new_node->next=temp;
 new_node=temp;
 }
 }
}
void print_title()
{
 system("cls");
 setConsoleColor(15 , 12);
 printf("\n\n\n");
 printf("\t\t\t\t\t\tSTUDENT MANAGEMENT SYSTEM\n");
 printf("\t\t\t\t\t*-------------------------------------*\n");
 printf("\n\n");
}
void setConsoleColor(int bgColor, int textColor) {
 HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
 SetConsoleTextAttribute(hConsole, (bgColor << 4) | textColor);
}
void search_student()
{
 print_title();
 setConsoleColor(15 , 12);
 saved_data();
 char flag='y';
 do
 {
 node *c=head,*temp=NULL;
 char id[100];
 printf("\n\t\t\tEnter Student Name:");
 scanf("%s",id);
 printf("\n");
 while(c!=NULL)
 {
 if(strcmp(c->name,id)==0)
 {
 temp=c;
 break;
 }
 c=c->next;
 }
 if(temp==NULL)
 printf("\t\tRecord Not found!!!\n\n");
 else
 {
 printf("\n\t\tStudent\tName: %s %s\n",temp->name,temp->last_name);
 printf("\n\t\tStudent\tID: %s\n",temp->student_id);
 printf("\n\t\tFather\tName: %s\n",temp->father_name);
 printf("\n\t\tMother\tName: %s\n",temp->mother_name);
 printf("\n\t\tGender\t: %s\n",temp->gender);
 printf("\n\t\tDate of Birth\t: %s\n\n\n",temp->date_of_birth);
 }
 getchar(); //For clearing the input buffer
 printf("Do you want to search more (Y/N) :");
 scanf("%c",&flag);
 }
 while(flag=='y'||flag=='Y');
 printf("\n");
 system("pause"); //Make the screen wait for a key press.
}
void modify_student_data()
{
 print_title();
 setConsoleColor(15 , 12);
 int check=0;
 char id[100];
 printf("\n\t\tEnter Name to Modify:");
 scanf("%s",id);
 rewind(file); //move file position indicator to the beginning
 while((fread(&std,sizeof(std),1,file)==1))
 {
 if(strcmp(id,std.name)==0)
 {
 check=1;
 break;
 }
 }
 if(check==0)
 printf("\n\t\tRecord not found!!!\n\n");
 else
 {
 fseek(file,-sizeof(std),SEEK_CUR);// file position indicator to the current
 printf("\n\t\tEnter new data :\n\n");
 printf("\t\t\t\tEnter First name:");
 scanf("%s",std.name);
 printf("\n\t\t\t\tEnter Last name:");
 scanf("%s",std.last_name);
 printf("\n\t\t\t\tEnter Student ID:");
 scanf("%s",std.student_id);
 printf("\n\t\t\t\tIf Female write F or If Male write M:");
 scanf("%s",std.gender);
 getchar();
 printf("\n\t\t\t\tEnter Father name:");
 gets(std.father_name);
 printf("\n\t\t\t\tEnter Mother name:");
 gets(std.mother_name);
 printf("\n\t\t\t\tEnter Date of Birth:");
 scanf("%s",std.date_of_birth);
 fwrite(&std,sizeof(std),1,file);
 }
 if(check==1)
 {
 printf("\n\t\tRecord was changed successfully.\n");
 }
 printf("\n");
 system("pause"); //Make the screen wait for a key press.
}
void remove_student()
{
 print_title();
 setConsoleColor(15 , 12);
 char id[100];
 FILE *tmp;
 if((tmp=fopen("tmp.txt","wb+"))==NULL)
 {
 printf("\n\t\tCan not be opened");
 }
 printf("\n\t\tEnter Student name that to be delete:");
 scanf("%s",id);
 int check=0;
 rewind(file); //move file position indicator to the beginning
 while((fread(&std,sizeof(std),1,file))==1)
 {
 if(strcmp(std.name,id)==0)
 {
 check=1;
 }
 else
 {
 fwrite(&std,sizeof(std),1,tmp);
 }
 }
 fclose(file);
 fclose(tmp);
 remove("sectiong.txt"); //the file to delete
 rename("tmp.txt","sectiong.txt"); //rename the file
 if((file=fopen("sectiong.txt","rb+"))==NULL)
 {
 printf("Can not be opened.");
 }
 if(check==1)
 {
 printf("\n\t\tThe record has been deleted successfully.\n");
 }
 if(check==0)
 printf("\n\t\t\tERROR!!Record Not Found..\n");
 printf("\n");
 system("pause"); //Make the screen wait for a key press.
}
void add_new_student()
{
 print_title();
 setConsoleColor(15 , 12);
 char check='y';
 int k=1;
 while(check=='y'||check=='Y')
 {
 printf("\t\tStudent %d:\n",k);
 printf("\t\t\t\tEnter First name:");
 scanf("%s",std.name);
 printf("\n\t\t\t\tEnter Last name:");
 scanf("%s",std.last_name);
 generate_student_id(std.student_id);
 printf("\n\t\t\t\tIf Female write F or If Male write M:");
 scanf("%s",std.gender);
 getchar();
 printf("\n\t\t\t\tEnter Father name:");
 gets(std.father_name);
 printf("\n\t\t\t\tEnter Mother name:");
 gets(std.mother_name);
 printf("\n\t\t\t\tEnter Date of Birth:");
 scanf("%s",std.date_of_birth);
 printf("The Generated Student ID is %s.", std.student_id);
 fwrite(&std,sizeof(std),1,file);
 printf("\n\t\t\t\tDo You Want to Add More Information (y/n)--> ");
 getchar();
 check=getchar();
 printf("\n");
 k++;
 }
}
void display_student()
{
 print_title();
 setConsoleColor(15 , 12);
 saved_data();
 node *c=head;
 if(head!=NULL)
 {
 printf("\t\t\t\t\tSTUDENT NAME:\t\tID:\n\n");
 }
 while(c!=NULL)
 {
 printf("\t\t\t\t\t%s %s\t\t%s\n",c->name,c->last_name,c->student_id);
 c=c->next;
 }
 printf("\n\nTotal Female Student: %d && Total Male Student: %d.\n",f,m);
 printf("\n");
 system("pause"); //Make the screen wait for a key press.
}
void break_t(unsigned int t)
{
 clock_t tym=t+clock();
 while(tym>clock());
}
void date_time()
{
 char tim[50];
 setConsoleColor(15 , 12);
 char day[50];
 time_t currenttime;
 time(&currenttime);
 struct tm *myt=localtime(&currenttime);
 strftime(tim,sizeof(tim),"%x",myt);
 strftime(day,sizeof(day),"%I:%M%p",myt);
 printf("\t\tDate:%s\t\t\t\t\t\t\t\tTime:%s\n",tim,day);
}
void intro()
{
 setConsoleColor(15 , 12);
 while(1)
 {
 int k,p;
 system("cls");//to make the screen clean
 printf("\n\n");
 
//printf("**************************************************************************
**********************************************\n\n");
 //printf("\t\t\t\t\tGovernment College Of Technology\n\n");
 
//printf("**************************************************************************
**********************************************");
 printf("\n\n\n");
 date_time();
 printf("\n\n\n\n");
 printf("\t\t\t\t\t\tSTUDENT RECORD SYSTEM\n");
 printf("\t\t\t\t\t*-------------------------------------*\n");
 printf("\n\n");
 if(k==1)
 {
 printf("\n\n");
 printf("\t\t\t\t\t\tWrong password!! ,try again\n");
 }
 k=0;
 if(p==1)
 {
 printf("\n");
 printf("\t\t\t\t\t\tIncorrect Username!! ,try again\n");
 }
 p=0;
 char username[100],password[100];
 printf("\n\t\t\t\t\t\tUsername:");
 scanf("%s",username);
 getchar();
 printf("\n");
 printf("\t\t\t\t\t\tPassword:");
 int l=0;
 do
 {
 password[l]=getch();
 if(password[l]!='\r');
 {
 printf("*");
 }
 l++;
 }
 while(password[l-1]!='\r');
 password[l-1]='\0';
 if(strcmp(username,"diu")==0&&strcmp(password,rtrv)==0)
 {
 system("cls");
 printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
 printf("\t\t\t\t\tWelcome to student management system");
 for(int i=0; i<10; i++)
 {
 break_t(130);
 printf(".");
 }
 break;
 }
 else
 {
 if(strcmp(password,rtrv)!=0)
 {
 k=1;
 }
 if(strcmp(username,"diu")!=0)
 {
 p=1;
 }
 //system("cls");
 }
 }
}
int main()
{
 setConsoleColor(15 , 12);
 if((file=fopen("sectiong.txt","rb+"))==NULL)
 {
 if((file=fopen("sectiong.txt","wb+"))==NULL)
 {
 printf("The file can not be opened\n");
 }
 }
 f1=fopen("password.txt","r");
 fscanf(f1,"%s",&rtrv);
 intro();
 while(1)
 {
 int press;
 printf("\n");
 print_title();
 printf("\t\t\t\t\t\t1. Add New Records\n\n");
 printf("\t\t\t\t\t\t2. Display all Students Records\n\n");
 printf("\t\t\t\t\t\t3. Delete Records\n\n");
 printf("\t\t\t\t\t\t4. Search and View Records\n\n");
 printf("\t\t\t\t\t\t5. Modify Records\n\n");
 printf("\t\t\t\t\t\t6. Change Password\n\n");
 printf("\t\t\t\t\t\t7. Exit\n\n");
 int choice;
 printf("\n\t\t\t\t\t\tEnter Option:--> ");
 scanf("%d",&choice);
 switch(choice)
 {
 case 1:
 {
 add_new_student( );
 }
 break;
 case 2:
 {
 display_student();
 }
 break;
 case 3:
 {
 remove_student();
 }
 break;
 case 4:
 {
 search_student();
 }
 break;
 case 5:
 {
 modify_student_data();
 }
 break;
 case 6:
 {
 change_password();
 }
 break;
 case 7:
 {
 system("cls");
 exit(0);
 }
 break;
 default:
 {
 printf("Wrong Input.. END!!\n");
 }
 }
 }
 return 0;
}