l-biblio.c

A simple bibliotech archive coded in C. A real exercise with fopen write and the other base functio

#include "head.h"


int  main()
{
char *risp;
pid_t pid;
system("clear");
do{
menu:{
risp=malloc(sizeof("s"));
fprintf (stdout,
         "[*]++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++[*]\n"
         " +                                           L-biblioteca Main Menu                                         + \n"
         "[*]++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++[*]\n"
         " *                                                                                                          *\n"
         " *                                                                                                          *\n"
         " *           (C) Create new database (.db) file                                                             *\n"
	 " *                                                                                                          *\n"
         " *           (A) Add an entry in  memory (Title,Author,Editor,Pages,Cost,file.db) in a required position    *\n"    
         " *                                                                                                          *\n"
 	 " *           (D) Delete an entry in memory (required a position and the file.db)                            *\n"
         " *                                                                                                          *\n"
         " *           (P) Print the database file                                                                    *\n"
         " *                                                                                                          *\n"
         " *           (Q) Quit                                                                                       *\n"
         " *                                                                                                          *\n"
         " *                                                                                                          *\n" 
	"[*]++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++[*]\n");


fscanf(stdin,"%s",risp);
}
if (memcmp(risp,"C",sizeof("C"))==0 || memcmp(risp,"c",sizeof("c"))==0)
{
char *nome;
FILE *f;
 fprintf (stdout,"[*] Please enter the name of your new database file :");
 nome=malloc(sizeof(nome));
 fscanf(stdin,"%s",nome);
 if ( (f=fopen(nome,"w+"))==NULL){ fprintf (stdout,"[*] Error in CREATE,look the source code [*]\n"); goto menu;}
 fclose(f);
 fprintf (stdout,"[*] Create is end Return to main menu...[*]\n");
 goto menu;

}

if(memcmp(risp,"A",sizeof("A"))==0 || memcmp(risp,"a",sizeof("a"))==0)
 {
 char *ze,*position,*pages,*title,*author,*editor,*cost,*database;
 fprintf (stdout,"[*] Insert title of the book whitout spaces use underline (_):");
 title=malloc(sizeof(title));
 fscanf (stdin,"%s",title);
 fprintf (stdout,"[*] Insert author of the book whitout spaces use underline (_) :");
 author=malloc(sizeof(author));
 fscanf (stdin,"%s",author);
 fprintf (stdout,"[*] Insert editor of the book whitout spaces use underline (_) :");
 editor=malloc(sizeof(editor));
 fscanf (stdin,"%s",editor);
 fprintf (stdout,"[*] Insert pages  of the book whitout spaces use underline (_) :");
 pages=malloc(sizeof(pages));
 fscanf (stdin,"%s",pages);
 fprintf (stdout,"[*] Insert cost   of the book whitout spaces use underline (_) :");
 cost=malloc(sizeof(cost));
 fscanf (stdin,"%s",cost);
 fprintf (stdout,"[*] Insert postion of the book in the database whitout spaces use underline (_) :");
 position=malloc(sizeof(position));
 fscanf (stdin,"%s",position);
 fprintf (stdout,"[*] Insert the name of the database to elaborate or write new name for new database whitout spaces use underline (_) :");
 database=malloc(sizeof(database));
 fscanf (stdin,"%s",database);
 fprintf (stdout,"[*] Are you sure ? (Y/N) :");
 ze=malloc(sizeof(ze));
 fscanf(stdin,"%s",ze);
 if (memcmp(ze,"n",sizeof("n"))==0 || memcmp(ze,"n",sizeof("n"))==0) goto menu;
 
//Forking
 switch(pid = fork()) { 
 case -1: 
 fprintf (stdout,"[*] Error in add : Fork failed ,return to main menu [*] \n"); 
 break; 
 case 0: 
 system("clear");
 execl("add","add","-t",title,"-a",author,"-e",editor,"-n",pages,"-c",cost,"-p",position ,"-f",database);
  fprintf (stdout,"[*] Error in ADD ,look the source code [*]\n");
 break; 
 default: 
 waitpid(pid,NULL,0); 
 printf("[*] Add completed. Return to main menu[*]\n\n"); 
 }}


 if(memcmp(risp,"P",sizeof("P"))==0 || memcmp(risp,"p",sizeof("p"))==0) 
 {
 char *name,*start,*end;
 fprintf (stdout,"[*] Insert the database file name to print [*] :");
 name=malloc(sizeof(name));
 fscanf(stdin,"%s",name);
 fprintf (stdout,"[*] Print from position : ");
 start=malloc(sizeof(start));
 fscanf (stdin,"%s",start);
 fprintf (stdout,"[*] To position :");
 end=malloc(sizeof(end));
 fscanf(stdin,"%s",end);
 //FORKO

 switch(pid = fork()) {
 case -1:
 fprintf (stdout,"[*] Error in print : Fork failed ,return to main menu [*] \n");
 break;
 case 0:
 system("clear");
 execl ("print","print",name,start,end);
 fprintf (stdout,"[*] Error in PRINT look the source code [*]\n");
 break;
 default:
 waitpid(pid,NULL,0);
 printf("[*] Print completed. Return to main menu[*]\n\n");
  }
 }


if(memcmp(risp,"D",sizeof("D"))==0 || memcmp(risp,"d",sizeof("d"))==0)
 {
 char  *file,*position,*risp;
 fprintf (stdout,"[*] Database name , to modify ? : ");
 file=malloc(sizeof(file));
 fscanf(stdin,"%s",file);
 fprintf (stdout,"[*] Position to erase ? : ");
 position=malloc(sizeof(position));
 fscanf(stdin,"%s",position);
 fprintf (stdout,"[*] Are you sure ? (Y/N) : ");
 risp=malloc(sizeof(risp));
 fscanf(stdin,"%s",risp);
 if (memcmp(risp,"n",sizeof("n"))==0 || memcmp(risp,"n",sizeof("n"))==0) goto menu;

 //FORKO
 switch(pid = fork()) {
 case -1:
 fprintf (stdout,"[*] Error in DELETE : Fork failed ,return to main menu [*] \n");
 break;
 case 0:
 execl ("delete","delete","-p",position,"-f",file);
 fprintf (stdout ,"[*] Error in Delete look the source code [*] \n");
 break;
 default:
 waitpid(pid,NULL,0);
 printf("[*] Delete completed. Return to main menu[*]\n\n");
  }
 
 }

}while ( memcmp(risp,"q",sizeof("q"))!=0 && memcmp(risp,"Q",sizeof("Q"))!=0);
}