main.cpp
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#include<my_global.h> #include<stdio.h> #include<stdlib.h> #include<ctype.h> #include<string.h> #include<mysql.h> #include<sys/types.h> static char *host = "localhost"; static char *user = "root"; static char *pass = ""; static char *dbname = "first_project"; unsigned int port = 3306; static char *unix_socket = NULL; unsigned int flag = 0; void finish_with_error(MYSQL *conn) { //The function is used for updating mysql fprintf(stderr, "%s\n", mysql_error(conn)); mysql_close(conn); } int main() { system("clear"); FILE *fp; int n,ch,b,det[10],dcost,bcost,tcost; double deta[10]; char temp[40],passwordd[40],l[2]; char details[10][40]; char query[1024]; MYSQL *conn; MYSQL_RES *result; MYSQL_ROW row; int i,num_fields; MYSQL_FIELD *field; int tries = 3, try_count; conn = mysql_init(NULL); if(!(mysql_real_connect(conn,host,user,pass,dbname,port,unix_socket,flag))) { fprintf(stderr,"\n error: %s\t [%d]",mysql_error(conn),mysql_errno(conn)); exit(1); } fp = fopen("goodpass","r"); fscanf(fp,"%s",temp); fclose(fp); printf("\t\t connected to database \n"); printf("\t\t type 1 for admin access any other key for guest access\n\n "); scanf("%d",&n); if(n==1) { // Adding 3 tries for wrong password try_count = 0; while(try_count < tries) { printf("enter the admin password \n"); scanf("%s",passwordd); if(strcmp(passwordd,temp)==0) { continue; } if(strcmp(passwordd,temp)!=0) { printf("Wrong password! Please try again"); try_count++; } } do{ printf("\n\t\t Hey! Admin what are you upto?\n\t\t enter your choice"); printf("\n\t\t 1. add a car\n\t\t 2. delete a car\n\t\t 3. delete a customer detail\n\t\t 4. delete a trip\n\t\t 5. show customer details\n\t\t 6. show trip details\n\t\t 7. show car details\n\t\t 8. to change password\n\t\t 999. to exit"); scanf("%d",&ch); int c; if(ch==1) { printf("\npress 999 to exit,any other key to continue"); scanf("%d",&bcost); if(bcost==999) { continue; } printf("\nmake an entry for car no"); scanf("%d",&det[0]); printf("\nmake an entry for car model"); scanf("%s",details[1]); printf("\nmake an entry for capacity of the car"); scanf("%d",&det[2]); printf("\nmake an entry for base cost"); scanf("%d",&det[3]); printf("\nmake an entry for car type"); scanf("%s",details[4]); printf("\nmake an entry for pickup point"); scanf("%s",details[5]); printf("\nEnter availability "); scanf("%s",details[6]); sprintf(query,"INSERT INTO car_details(car_no,car_model,limit_car,cost_base,car_type,pickup_point,availability) VALUES('%d','%s','%d','%d','%s','%s','%s')",det[0],details[1],det[2],det[3],details[4],details[5],details[6]); if(mysql_query(conn,query)) { finish_with_error(conn); } printf("the table after the new entry is:\n"); if(mysql_query(conn,"SELECT * FROM car_details")) { finish_with_error(conn); } result = mysql_store_result(conn); if (result == NULL) { printf("empty table"); } num_fields = mysql_num_fields(result); while ((row = mysql_fetch_row(result))) { for(i = 0; i < num_fields; i++) { if (i == 0) { while(field = mysql_fetch_field(result)) { printf("%s ", field->name); } printf("\n"); } printf("%s\t",row[i] ? row[i] : "NULL"); } printf("\n"); } mysql_free_result(result); } if(ch==2) { printf("\npress 999 to exit,any other key to continue"); scanf("%d",&bcost); if(bcost==999) { continue; } next2: printf("\nthe table already is:\n"); if(mysql_query(conn,"SELECT * FROM car_details")) { finish_with_error(conn); } result = mysql_store_result(conn); if (result == NULL) { printf("empty table"); } num_fields = mysql_num_fields(result); while ((row = mysql_fetch_row(result))) { for(i = 0; i < num_fields; i++) { if (i == 0) { while(field = mysql_fetch_field(result)) { printf("%s ", field->name); } printf("\n"); } printf("%s\t",row[i] ? row[i] : "NULL"); } printf("\n"); } mysql_free_result(result); printf("delete according to?\n\n 1. car_no\n\n2. car_model\n\n 3. car_type\n\n 4. pickup point\n\n"); scanf("%d",&c); switch(c) { case 1 : printf("enter the car no"); scanf("%d",&det[0]); sprintf(query,"DELETE FROM car_details WHERE car_no = '%d'",det[0]); break; case 2 : printf("enter the car model"); scanf("%s",details[0]); sprintf(query,"DELETE FROM car_details WHERE car_model = '%s'",details[0]); break; case 3 : printf("enter the car type"); scanf("%s",details[0]); sprintf(query,"DELETE FROM car_details WHERE car_type = '%s'",details[0]); break; case 4 : printf("enter the pickup point"); scanf("%s",details[0]); sprintf(query,"DELETE FROM car_details WHERE pickup_point = '%s'",details[0]); break; default : printf("wrong option"); goto next2; } if(mysql_query(conn,query)) { finish_with_error(conn); } } if(ch==3) { printf("\npress 999 to exit right now"); scanf("%d",&bcost); if(bcost==999) { continue; } printf("\nenter the customer no"); scanf("%d",&det[0]); sprintf(query,"DELETE FROM cust_det WHERE cno = '%d'",det[0]); } if(ch==4) { printf("\npress 999 to exit, any other key to continue"); scanf("%d",&bcost); if(bcost==999) { continue; } next1: printf("\nthe table already consists of:\n"); printf("\nthe table consists of:\n"); if(mysql_query(conn,"SELECT * FROM trip_details")) { finish_with_error(conn); } result = mysql_store_result(conn); if (result == NULL) { printf("empty table"); } num_fields = mysql_num_fields(result); while ((row = mysql_fetch_row(result))) { for(i = 0; i < num_fields; i++) { if (i == 0) { while(field = mysql_fetch_field(result)) { printf("%s ", field->name); } printf("\n"); } printf("%s\t",row[i] ? row[i] : "NULL"); } printf("\n"); } mysql_free_result(result); printf("delete according to?\n\n 1. customer's license_no\n\n2. car number\n\n "); scanf("%d",&c); printf("enter value : "); scanf("%s",details[0]); switch(c) { case 1 : sprintf(query,"DELETE FROM trip_details WHERE dlno = '%s'",details[0]); break; case 2 : sprintf(query,"DELETE FROM trip_details WHERE car_no = '%s'",details[0]); break; default : printf("wrong option"); goto next1; } if(mysql_query(conn,query)) { finish_with_error(conn); } } if(ch==5) { printf("\npress 999 to exit,any other key to continue"); scanf("%d",&bcost); if(bcost==999) { continue; } printf("\ncustomer details"); if(mysql_query(conn,"SELECT * FROM cust_det")) { finish_with_error(conn); } result = mysql_store_result(conn); if (result == NULL) { printf("empty table"); } num_fields = mysql_num_fields(result); while ((row = mysql_fetch_row(result))) { for(i = 0; i < num_fields; i++) { if (i == 0) { while(field = mysql_fetch_field(result)) { printf("%s ", field->name); } printf("\n"); } printf("%s\t",row[i] ? row[i] : "NULL"); } printf("\n"); } mysql_free_result(result); } if(ch==6) { printf("\ntrip details"); if(mysql_query(conn,"SELECT * FROM trip_details")) { finish_with_error(conn); } result = mysql_store_result(conn); if (result == NULL) { printf("empty table"); } num_fields = mysql_num_fields(result); while ((row = mysql_fetch_row(result))) { for(i = 0; i < num_fields; i++) { if (i == 0) { while(field = mysql_fetch_field(result)) { printf("%s ", field->name); } printf("\n"); } printf("%s\t",row[i] ? row[i] : "NULL"); } printf("\n"); } mysql_free_result(result); } if(ch==7) { printf("\ncar details"); if(mysql_query(conn,"SELECT * FROM car_details")) { finish_with_error(conn); } result = mysql_store_result(conn); if (result == NULL) { printf("empty table"); } num_fields = mysql_num_fields(result); while ((row = mysql_fetch_row(result))) { for(i = 0; i < num_fields; i++) { if (i == 0) { while(field = mysql_fetch_field(result)) { printf("%s ", field->name); } printf("\n"); } printf("%s\t",row[i] ? row[i] : "NULL"); } printf("\n"); } mysql_free_result(result); } if(ch==8) { char a[2]; printf("\nDo you really want to change the password? press y/n"); scanf("%s",a); if(strcmp(a,"y")==0) { fp = fopen("goodpass","w"); char temp1[40]; printf("\nenter your old password"); scanf("%s",temp1); if(strcmp(temp,temp1)==0) { printf("\nenter your new password"); scanf("%s",passwordd); printf("\nconfirm your password"); scanf("%s",temp1); if(strcmp(passwordd,temp1)==0) { fprintf(fp,"%s",temp1); printf("password has been changed!"); } else printf("\nunauthorized access terminated,bye!"); } fclose(fp); } } }while(ch!=999); } else { int pick; do{ printf("\n\t\t Welcome guest! How May I Help you?"); printf("\n\t\t 1.Search among all the cars\n\t\t 2.Bill generation\n\t\t 999.to exit"); scanf("%d",&pick); switch(pick) { case 1 :printf("\ncar details"); if(mysql_query(conn,"SELECT * FROM car_details")) { finish_with_error(conn); } result = mysql_store_result(conn); if (result == NULL) { printf("empty table"); } num_fields = mysql_num_fields(result); while ((row = mysql_fetch_row(result))) { for(i = 0; i < num_fields; i++) { if (i == 0) { while(field = mysql_fetch_field(result)) { printf("%s ", field->name); } printf("\n"); } printf("%s\t",row[i] ? row[i] : "NULL"); } printf("\n"); } mysql_free_result(result); printf("\n\t\t selecting a car?\n\t\t choose a suitable option,\n\t\t 1.car model\n\t\t 2. pickup point\n "); scanf("%d",&ch); if(ch==1) { printf("\nenter the car model"); scanf("%s",details[0]); sprintf(query,"SELECT * FROM car_details c WHERE c.car_model = '%s' AND c.availability = 'y'",details[0]); mysql_query(conn,query); result = mysql_store_result(conn); if(result == NULL) { printf("\nwe don't have the car right now"); } num_fields = mysql_num_fields(result); while(row = mysql_fetch_row(result)) { for(i = 0; i< num_fields; i++) { printf("%s\t", row[i] ? row[i] : "NULL"); } } printf("\nAre you sure you wanna take this car?(y/n)"); scanf("%s",l); if(strcmp(l,"y")==0) { printf("\nyour trip is being generated\n"); printf("\nenter your customer number"); scanf("%d",&det[0]); printf("\nenter your name"); scanf("%s",details[1]); printf("\nenter your destination "); scanf("%s",details[2]); printf("\nenter your email id"); scanf("%s",details[3]); printf("\nenter your contact no"); scanf("%d",&det[4]); printf("\nenter your dlno"); scanf("%s",details[5]); sprintf(query,"SELECT * FROM car_details c WHERE c.car_model = '%s' AND c.availability = 'y'",details[0]); mysql_query(conn,query); result = mysql_store_result(conn); row = mysql_fetch_row(result); sprintf(query,"INSERT INTO cust_det(cno,name,destination,email_id,contact_no,dlno,car_no) VALUES('%d','%s','%s','%s','%d','%s','%s')",det[0],details[1],details[2],details[3],det[4],details[5],row[0]); mysql_query(conn,query); sprintf(query,"UPDATE car_details SET availability = 'n' WHERE car_model = '%s' ",row[1]); mysql_query(conn,query); printf("\nenter the date of the start of your trip"); scanf("%s",details[0]); printf("\nenter the date of the end of your trip"); scanf("%s",details[1]); printf("\nenter the distance"); scanf("%lf",&deta[2]); sprintf(query,"INSERT INTO trip_details(start_t,end_t,car_no,distance,dlno) VALUES('%s','%s','%s','%lf','%s')",details[0],details[1],row[0],deta[2],details[5]); mysql_query(conn,query); mysql_free_result(result); break; } } if(ch==2) { printf("\nenter the pickup point "); scanf("%s",details[0]); sprintf(query,"SELECT * FROM car_details WHERE pickup_point = '%s' AND availability = 'y'",details[0]); mysql_query(conn,query); result = mysql_store_result(conn); if(result == NULL) { printf("we don't have the car right now"); } num_fields = mysql_num_fields(result); while(row = mysql_fetch_row(result)) { for(i = 0; i< num_fields; i++) { printf("%s\t", row[i] ? row[i] : "NULL"); } } printf("\n are you sure you wanna take this car?(y/n)"); scanf("%s",l); if(strcmp(l,"y")==0) { printf("\nyour trip is being generated\n"); printf("\nenter your customer number"); scanf("%d",&det[0]); printf("\nenter your name"); scanf("%s",details[1]); printf("\nenter your destination "); scanf("%s",details[2]); printf("\nenter your email id"); scanf("%s",details[3]); printf("\nenter your contact no"); scanf("%d",&det[4]); printf("\nenter your dlno"); scanf("%s",details[5]); sprintf(query,"SELECT * FROM car_details WHERE pickup_point = '%s' AND availability = 'y'",details[0]); mysql_query(conn,query); result = mysql_store_result(conn); row = mysql_fetch_row(result); sprintf(query,"INSERT INTO cust_det() VALUES('%d','%s','%s','%s','%d','%s','%s')",det[0],details[1],details[2],details[3],det[4],details[5],row[0]); mysql_query(conn,query); sprintf(query,"UPDATE car_details SET availability = 'n' WHERE car_model = '%s'", row[1]); mysql_query(conn,query); printf("\nenter the date of the start of your trip"); scanf("%s",details[0]); printf("\nenter the date of the end of your trip"); scanf("%s",details[1]); printf("\nenter the distance"); scanf("%lf",&deta[2]); sprintf(query,"INSERT INTO trip_details(start_t,end_t,car_no,distance,dlno) VALUES('%s','%s','%s','%lf','%s')",details[0],details[1],row[0],deta[2],details[5]); mysql_query(conn,query); } } mysql_free_result(result); break; case 2: printf("\n\t\t The Bill is being generated"); printf("\n\t\t enter your dlno"); scanf("%s",details[0]); sprintf(query,"SELECT * FROM trip_details WHERE dlno = '%s'",details[0]); mysql_query(conn,query); result = mysql_store_result(conn); row = mysql_fetch_row(result); int j=0; int temp=0; while(row[3][i] != '\0') { //this function is to calculate actual numeral value of bill temp=temp*10; temp=temp+((int)row[3][i]-48); i++; } dcost = temp*10; printf("\n\t\tcost as per the distance travelled(rs.10 per km)rs.%d",dcost); strcpy(details[0],row[2]); mysql_free_result(result); sprintf(query,"SELECT * FROM car_details WHERE car_no = '%s'",details[0]); mysql_query(conn,query); result = mysql_store_result(conn); row = mysql_fetch_row(result); j=0;temp=0; while(row[3][i] != '\0') { printf("\n%d",temp); temp=temp*10; temp=temp+((int)row[3][i]-48); i++; } printf("\ntemp%d",temp); bcost = temp; tcost = bcost + dcost; printf("\nthe base cost is:rs.%d\n the total cost is: rs.%d ",bcost,tcost); mysql_free_result(result); } }while(pick!=999); } mysql_close(conn); return 0; } |
