MATERI UAP II (CLIENT)

// LINK SOAL : https://www.dropbox.com/s/s148os0ispnnpb3/S__5021795.jpg?dl=0

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <ctype.h>
#include <sys/ipc.h>
#include <sys/types.h>
#include <sys/sem.h>
#include <sys/shm.h>

struct data {
    char provider[16];
    int speed;
    int price;
    char area[100];
    char tgl[100];//tambahan di soal ga ada
};

int main(){
    struct sembuf s;
    int h=shmget(123456,sizeof(struct data),IPC_CREAT|0666);
    int e=semget(123456,1,IPC_CREAT|0666);
    semctl(e,0,SETVAL,0);
    struct data *internet=(struct data*)shmat(h,NULL,0666);
    int flag,i;
    printf("\n\n====================================\nPROGRAM REGISTRASI INTERNET - CLIENT\n====================================\n\n");
    do{
        do{
            flag=0;
            printf("Masukan Nama Provide [4..15][EXIT to close] : ");
            scanf("%[^\n]",internet->provider);getchar();
            if(strcasecmp(internet->provider,"Exit")==0)
                break;
            else if(strlen(internet->provider)>=4&&strlen(internet->provider)<=15)
                flag=1;
        }while(flag==0);
        if(strcasecmp(internet->provider,"Exit")!=0){
            do{
                flag=0;
                printf("Masukan Speed Internet[1-100]: ");
                scanf("%d",&internet->speed);getchar();
                if(internet->speed>=1&&internet->speed<=100)
                    flag=1;
            }while(flag==0);
            do{
                flag=0;
                printf("Masukan Price[Kelipatan 1000(1000-10000)]: ");
                scanf("%d",&internet->price);getchar();
                if(internet->price>=1000&&internet->price<=10000&&internet->price%1000==0)
                    flag=1;
            }while(flag==0);
            do{
                flag=0;
                printf("Masukan Area[Sulawesi|Kalimantan|Surabaya]: ");
                scanf("%[^\n]",internet->area);getchar();
                if(strcasecmp(internet->area,"Surabaya")==0||strcasecmp(internet->area,"Kalimantan")==0||strcasecmp(internet->area,"Sulawesi")==0)
                    flag=1;
            }while(flag==0);
            //tambahan mulai dari sini
            do{
                flag=1;//awal true kalo ada yg salah langsung 0
                printf("Masukan tgl registrasi[FORMAT :\"DD/MM/YYYY\"][Tahun 2015/2016]: ");
                scanf("%[^\n]",internet->tgl);getchar();
                if(internet->tgl[0]<'0'&&internet->tgl[0]>'3')
                    flag=0;
                if(internet->tgl[1]<'0'&&internet->tgl[1]>'9')
                    flag=0;
                if(internet->tgl[2]!='/')
                    flag=0;
                if(internet->tgl[3]!='0'&&internet->tgl[3]!='1')
                    flag=0;
                if(internet->tgl[4]<'0'&&internet->tgl[4]>'9')
                    flag=0;
                if(internet->tgl[5]!='/')
                    flag=0;
                if(internet->tgl[6]!='2')
                    flag=0;
                if(internet->tgl[7]!='0')
                    flag=0;
                if(internet->tgl[8]!='1')
                    flag=0;
                if(internet->tgl[9]!='5'&&internet->tgl[9]!='6')
                    flag=0;
                //khasus khusus
                if(internet->tgl[0]=='0'&&internet->tgl[1]=='0')//input dd 00
                    flag=0;
                if(internet->tgl[0]=='3'&&internet->tgl[1]!='0')//input dd 31-39
                    flag=0;
                if(internet->tgl[3]=='0'&&internet->tgl[4]=='0')//input mm 00
                    flag=0;
                if(internet->tgl[3]=='1'&&internet->tgl[4]>'2')//input mm 13-19
                    flag=0;
            }while(flag==0);
            //tambahan berakhir di sini
        }
        s.sem_num=0;
        s.sem_op=1;
        s.sem_flg=0;
        semop(e,&s,1);
        printf("Masukan Data\n<Press Enter>");
        getchar();
        printf("\n");
    }while(strcasecmp("exit",internet->provider)!=0);
    shmdt(&internet);
    shmctl(h,IPC_RMID,0);
    semctl(e,0,IPC_RMID);
}