سورس ایجاد کتابخانه

#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
typedef struct date
{
  int yr;
  int mon;
  int date;
};
typedef struct bookdate
{
  char bname[20];
  int bnum;
  char nevi[30];
};
typedef struct pf
{
  char name[30];
  int idnum;
  int bama[3];
  date bdate[3];
};

void main()
{
  bookdate book[30]={"",0,""};
  pf stu[30]={{"",0,{0},{0}}};

  void stud();
  void stud1();
  void stud2();
  void stud3();
  void stud4(bookdate *b,pf *s);

  clrscr();
  a:
  int d=0;
  clrscr();
  printf(" -------------------------------------------");
  printf(" | enter number (1) for daryafte ketab       |"" | enter number (2) for sabte name danesamoz |"" | enter number (3) for sabte mojodi ketab   |");
  printf(" | enter number (4) for mahale ketab         |"" | enter number (5) for list amaniti ketab   |"" | enter number (6) for exit                 |");
  printf(" -------------------------------------------");
  scanf("%d",&d);
  switch (d)
  {
  case 1:
    stud();
    break;
  case 2:
    stud1();
    break;
  case 3:
    stud2();
    break;
  case 4:
    stud3();
    break;
  case 5:
    stud4(book,stu);
    break;
  case 6:
    exit(0);
  default:
  {
    printf(" -------------------------- ");
    printf(" menu antekhabi dorost nist");
    printf(" -------------------------- ");
  }
    }
  getch();
  goto a;
}

void stud()
{
  bookdate b[30]={{"",0,""}};
  pf s[30]={0,0,{0},{0}};
  FILE *fs;
  FILE *fb;
  int m=1110,j=2,i=0,cbook=0;
  fs = fopen ("d:\lib\student.txt","r+w");
  if (fs==NULL)
  {
    printf(" cannot read file student");
    getch();
    exit(1);
  }
  fread(&s,sizeof(s[0]),30,fs);
  idnum:
  printf(" enter idnum for student:");
  scanf("%d",&i);
  for (j=30;j >= 0;j--)
  {
    if (i==s[j].idnum)
    {
      m=j;
      printf(" name student: %s",s[j].name);
    }
  }
  if (m==1110)
  {
    printf(" idnum vojod nadaran");
    goto idnum;
  }
  // darkhaste daryafte ketab
  fb = fopen ("d:\lib\books.txt","rb");
  if (fs==NULL)
  {
    printf(" cannot read file books");
    getch();
    exit(1);
  }
  fread(&b,sizeof(b[0]),30,fb);
  i=1110;
  booknum:
  printf(" enter number book: ");
  scanf("%d",&cbook);
  for (j=0;j < 30;j++)
  {
    if (cbook==b[j].bnum)
    {
      i=j;
      printf(" name book: %s , %s",b[i].bname,b[i].nevi);
    }
  }
  if (i==1110)
  {
    printf(" number book vojod nadaran");
    goto booknum;
  }
  rewind(fs);
  if ((s[m].bama[0]!=0) && (s[m].bama[1]!=0) && (s[m].bama[2]!=0))
  printf(" !!!!!! 3 ketab ghabli avorde nashode ast ");
  rewind(fs);
  if ((s[m].bama[0])==0 )
  {
    printf(" enter date(sal,mah,roz):");
    scanf("%d %d %d",&s[m].bdate[0].yr,&s[m].bdate[0].mon,&s[m].bdate[0].date);
    s[m].bama[0]=cbook;
    fseek(fs,m*(sizeof(s[m])),0);
    fwrite(&s[m],sizeof(s[m]),1,fs);
    goto a;
  }
  if (s[m].bama[1]==0 )
  {
    printf(" enter date(sal,mah,roz):");
    scanf("%d %d %d",&s[m].bdate[1].yr,&s[m].bdate[1].mon,&s[m].bdate[1].date);
    s[m].bama[1]=cbook;
    fseek(fs,m*(sizeof(s[m])),0);
    fwrite(&s[m],sizeof(s[m]),1,fs);
    goto a;
  }
  if (s[m].bama[2]==0 )
  {
    printf(" enter date(sal,mah,roz):");
    scanf("%d %d %d",&s[m].bdate[2].yr,&s[m].bdate[2].mon,&s[m].bdate[2].date);
    s[m].bama[2]=cbook;
    fseek(fs,m*(sizeof(s[m])),0);
    fwrite(&s[m],sizeof(s[m]),1,fs);
  }
  a:
  fclose(fs);
  fclose(fb);
}

void stud1()
{
  pf s[30]={0,0,{0},{0}};
  FILE *fs;
  fs = fopen ("d:\lib\student.txt","a+b");
  if (fs==NULL)
  {
    printf(" cannot open file student");
    getch();
    exit(1);
  }
  int i=0,j=0;
  fread(&s,sizeof(s[0]),30,fs);
  for (i=0;i<30;i++)
  {
    if (s[i].idnum == 0)
    {
      printf(" enter name and idcode for student: ");
      scanf("%s %d",&s[i].name,&s[i].idnum);
      fwrite(&s[i],sizeof(s[0]),1,fs);
      goto stexit;
    }
    else
    printf(" %-15s = %d",s[i].name,s[i].idnum);
  }
  stexit:
  fclose(fs);
}

void stud2()
{
  bookdate b[30]={"",0,""};
  FILE *fb;
  fb = fopen ("d:\lib\books.txt","a+b");
  if (fb==NULL)
  {
    printf(" cannot open file books");
    getch();
    exit(1);
  }
  fread(&b,sizeof(b[0]),30,fb);
  int i=0,j=0;
  for (i=0;i<30;i++)
  {
    if (b[i].bnum == 0)
    {
      printf(" enter name , code and navisandeh for book: ");
      scanf("%s %d %s",&b[i].bname,&b[i].bnum,&b[i].nevi);
      fwrite(&b[i],sizeof(b[0]),1,fb);
      goto bexit;
    }
    else
    printf(" %-15s = %d = %s",b[i].bname,b[i].bnum,b[i].nevi);
  }
  bexit:
  fclose(fb);
}

void stud3()
{
  FILE *fs;
  FILE *fb;
  int m=1110,j=2,i=1110,cbook=0;
  bookdate b[30]={{"",0,""}};
  pf s[30]={0,0,{0},{0}};
  fs = fopen("d:\lib\student.txt","rb");
  if (fs==NULL)
  {
    printf(" cannot open file student");
    getch();
    exit(1);
  }
  fb = fopen ("d:\lib\books.txt","rb");
  if (fs==NULL)
  {
    printf(" cannot open file books");
    getch();
    exit(1);
  }
  booknum:
  fread(&s,sizeof(s[0]),30,fs);
  fread(&b,sizeof(b[0]),30,fb);
  printf(" enter number book: ");
  scanf("%d",&cbook);
  for (j=30;j >= 0;j--)
  {
    if (cbook==b[j].bnum)
    {
      i=j;
      printf(" name book: %s , %s",b[i].bname,b[i].nevi);
    }
  }
  if (i==1110)
  {
    printf(" number book vojod nadaran");
    goto booknum;
  }
  for (j=0;j < 30 ;j++)
  {
    if ((b[i].bnum == s[j].bama[0]) || (b[i].bnum == s[j].bama[1]) || (b[i].bnum == s[j].bama[2]))
    {
      printf(" ketab hast nazde: %s",s[j].name);
      m=1;
      goto ke;
    }
  }
  if (m==1110)
  printf(" -------------------------");
  printf(" ketab hast dar ketabkhane");
  printf(" -------------------------");
  ke:
  fcloseall();
  getch();
}

void stud4(bookdate *b,pf *s)
{
  int m=1110,j=2,i=0;
  idnum:
  printf(" enter idnum for student:");
  scanf("%d",&i);
  for (j=30;j >= 0;j--)
  {
    if (i==s[j].idnum)
    {
      m=j;
      printf(" name student: %s",s[m].name);
    }
  }
  if (m==1110)
  {
    printf(" idnum vojod nadaran");
    goto idnum;
  }
  i=1110;
  for (j=0;j < 30;j++)
  {
    if ((b[j].bnum==s[m].bama[0]) && (s[m].bdate[0].yr !=0))
    {
      i=j;
      printf(" %-10s %-10s  date %d/%d/%d ",b[i].bname,b[i].nevi,s[m].bdate[0].yr,s[m].bdate[0].mon,s[m].bdate[0].date);
    }
    if ((b[j].bnum==s[m].bama[1]) && (s[m].bdate[1].yr !=0))
    {
      i=j;
      printf(" %-10s %-10s  date %d/%d/%d ",b[i].bname,b[i].nevi,s[m].bdate[1].yr,s[m].bdate[1].mon,s[m].bdate[1].date);
    }
    if ((b[j].bnum==s[m].bama[2]) && (s[m].bdate[2].yr !=0))
    {
      i=j;
      printf(" %-10s %-10s  date %d/%d/%d ",b[i].bname,b[i].nevi,s[m].bdate[2].yr,s[m].bdate[2].mon,s[m].bdate[2].date);
    }
  }
  if (i==1110)
  printf(" ketabi dade nashode ast");
  getch();
}