MATERI UAP III (CLIENT)

//LINK : https://www.dropbox.com/s/8z3yo9b72hd17i1/Screen%20Shot%202016-01-21%20at%2011.29.16%20AM.png?dl=0

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

struct data{
    char nama_pelanggan[20];
    char gender[10];
    char majalah[100];
    int bulan;
    char alamat[100];
};

int main(){
    struct sembuf s;
    int h=shmget(123456,sizeof(struct data),IPC_CREAT|0666);
    int e=semget(123456,1,IPC_CREAT|0666);
    struct data *langananan=(struct data*)shmat(h,NULL,0666);
    int flag=0,i;
    printf("\n===================================\nPROGRAM PENDAFTARAN MAJALAH-CLIENT\n===================================\n\n");
    do{
        do{
            flag=0;
            printf("Masukan Nama [5..15][EXIT to close] : ");
            scanf("%[^\n]",langananan->nama_pelanggan);getchar();
            if(strcasecmp(langananan->nama_pelanggan,"exit")==0)
                break;
            else if(strlen(langananan->nama_pelanggan)>=5&&strlen(langananan->nama_pelanggan)<=15)
                flag=1;
            for(i=0;i<strlen(langananan->nama_pelanggan);i++){
                if(isdigit(langananan->nama_pelanggan[i]))
                    flag=0;
            }
        }while(flag==0);
        if(strcasecmp(langananan->nama_pelanggan,"exit")!=0){
            do{
                flag=0;
                printf("Masukan Gender [Male|Female] : ");
                scanf("%[^\n]",langananan->gender);getchar();
                if(strcasecmp(langananan->gender,"Male")==0||strcasecmp(langananan->gender,"Female")==0)
                    flag=1;
            }while(flag==0);
            do{
                flag=0;
                printf("Pilih Majalah [TIME|National Geographic|Femina](case sesnitive): ");
                scanf("%[^\n]",langananan->majalah);getchar();
                if(strcmp(langananan->majalah,"TIME")==0||strcmp(langananan->majalah,"National Geographic")==0||strcmp(langananan->majalah,"Femina")==0)
                    flag=1;
            }while(flag==0);
            do{
                flag=0;
                printf("Periode Langganan[3...24 bulan](Kelipatan 3 Bulan): ");
                scanf("%d",&langananan->bulan);getchar();
                if(langananan->bulan%3==0&&langananan->bulan>=3&&langananan->bulan<=24)
                    flag=1;
            }while(flag==0);
            do{
                flag=0;
                printf("Masukan Alamat [diakhiri dengan Street): ");
                scanf("%[^\n]",langananan->alamat);getchar();
                int j=strlen(langananan->alamat);
                if(j>8){
                    if(langananan->alamat[j-6]=='S'&&langananan->alamat[j-5]=='t'&&
                        langananan->alamat[j-4]=='r'&&langananan->alamat[j-3]=='e'&&
                        langananan->alamat[j-2]=='e'&&langananan->alamat[j-1]=='t')
                        flag=1;
                }
            }while(flag==0);
            printf("\nMasukan Data\n");
        }
        else{
            printf("\nExiting Program\n");
        }
        s.sem_num=0;
        s.sem_op=1;
        s.sem_flg=0;
        semop(e,&s,1);
        printf("<Press Enter>");
        getchar();
        printf("\n");
    }while(strcasecmp(langananan->nama_pelanggan,"exit")!=0);
    shmdt(&langananan);
    shmctl(h,IPC_RMID,0);
    semctl(e,0,IPC_RMID);
}