MATERI UAP I (CLIENT)

//LINK SOAL : https://www.dropbox.com/s/s0qki5su9pdoj8d/Screen%20Shot%202016-01-19%20at%208.07.24%20PM.png?dl=0

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

struct data{
    char namaUser[100];
    char namaUserDepan[100];
    char namaUserBelakang[100];
    char genre[100];
    char title[100];
};

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);
    int flag,i,spasi;
    struct data *buku=(struct data*)shmat(h,NULL,0666);
    printf("==========================================\nE-LIBRARY\nCLIENT SIDE\n==========================================\n");
    do{
        do{
            flag=0;
            printf("Masukan Nama User[2 Kata][EXIT to close]: ");
            scanf("%[^\n]",buku->namaUser);getchar();
            for(i=0;i<strlen(buku->namaUser);i++){
                if(buku->namaUser[i]==' '){
                    spasi=i;
                    flag++;
                }
            }
            if(strcasecmp("Exit",buku->namaUser)==0)
                break;
        }while(flag!=1);
        if(strcasecmp("Exit",buku->namaUser)!=0){
            //pecah dulu nama user jadi 2(depan belakang)
            //masukin ke depanya dari sumber sampe spasi
            for(i=0;i<spasi;i++){
                buku->namaUserDepan[i]=buku->namaUser[i];
            }
            //ulangin tapi masukinya ke belakang dari sumber setelah spasi sampe ais
            int j=0;
            for(i=spasi;i<strlen(buku->namaUser);i++){
                buku->namaUserBelakang[j]=buku->namaUser[i];
                j++;
            }
            do{
                flag=0;
                printf("Masukan Nama Genre[Horror | Fantasy | Science]: ");
                scanf("%[^\n]",buku->genre);getchar();
                if(strcasecmp("Horror",buku->genre)==0||strcasecmp("Science",buku->genre)==0||strcasecmp("Fantasy",buku->genre)==0)
                    flag=1;
            }while(flag==0);
            if(strcasecmp("Horror",buku->genre)==0){
                do{
                    flag=0;
                    printf("Masukan Nama Title[X-FILE | Dracula]{case sensitive}: ");
                    scanf("%[^\n]",buku->title);getchar();
                    if(strcmp("Dracula",buku->title)==0||strcmp("X-FILE",buku->title)==0)
                        flag=1;
                }while(flag==0);
            }
            else if(strcasecmp("Science",buku->genre)==0){
                do{
                    flag=0;
                    printf("Masukan Nama Title[AlgoProg | Future of Mind]{case sensitive}: ");
                    scanf("%[^\n]",buku->title);getchar();
                    if(strcmp("AlgoProg",buku->title)==0||strcmp("Future of Mind",buku->title)==0)
                        flag=1;
                }while(flag==0);
            }
            else if(strcasecmp("Fantasy",buku->genre)==0){
                do{
                    flag=0;
                    printf("Masukan Nama Title[Harry Potter | Allegiant]{case sensitive}: ");
                    scanf("%[^\n]",buku->title);getchar();
                    if(strcmp("Harry Potter",buku->title)==0||strcmp("Allegiant",buku->title)==0)
                        flag=1;
                }while(flag==0);
            }
        }
        s.sem_num=0;
        s.sem_op=1;
        s.sem_flg=0;
        semop(e,&s,1);
        printf("Masukan Input\n<press ENTER>\n\n");
        getchar();
    }while(strcasecmp("Exit",buku->namaUser)!=0);
    shmdt(&buku);
    shmctl(h,IPC_RMID,0);
    semctl(e,0,IPC_RMID);
}