MODE CONSOLE DE LINUX

#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
#include<string.h>
#include<dos.h>
#include<time.h>
typedef struct user{
char id[20];
int uid;
char mp[20];
int gid;
char nom[20];
char prenom[20];
user *suiv;
}user;
user *tete,*corps,*queue;
int uid=500;
char ncmd[20],pcmd[20];
void remplir()
{char c;
int i=0,x,y;
queue->uid=++uid;
randomize();
queue->gid=rand()%1000;
printf("Mot de passe:");
while((c=getch())!='\r')
		  {
		  if(c=='\b')
		      {
			if(i!=0)
			     i--;
			  printf("\b");
			 clreol();
			  }
		  else
			{
			queue->mp[i]=c;
			printf("*");
			  i++;
			}
		  }
queue->mp[i]='\0';
printf("\n NOM :");
scanf("%s",queue->nom);
printf("PRENOM:");
scanf("%s",queue->prenom);
}
void   creation()
{char c;
int i=0,j,x,y;
clrscr();
tete=NULL;
delay(800);
printf("\n\n\n\n\n\n\n\nCr‚ation du compte root");
for(j=1;j<=10;j++)
{
printf(". ");delay(100); }
clrscr();
		 tete=(user*)malloc(sizeof(user));
		 strcpy(tete->id,"root");
		  tete->uid=0;
		  tete->gid=0;
		   printf("Mot de passe:");
		  while((c=getch())!='\r')
		  {
		  if(c=='\b')
			  { if(i!=0)
			     {
			     i--;
			  printf("\b");
			 clreol();
			  }
			  }
		  else
		      {
		  tete->mp[i]=c;
		   printf("*");
		     i++;
		       }
		  }
		    tete->mp[i]='\0';
		 printf("\n NOM :");
		     scanf("%s",tete->nom);
		     printf("PRENOM:");
		     scanf("%s",tete->prenom);
tete->suiv=NULL;
queue=tete;
}

void adduser(char id[20])
{

if(strcmp(tete->id,id)==0)
printf("vous ne pouvez pas recr‚er root\n");
			else
			{
		       queue->suiv=(user*)malloc(sizeof(user));
		       queue=queue->suiv;
		       strcpy(queue->id,id);
		       remplir();
		       queue->suiv=NULL;
		       }
}
int  search_user_by_id(char *idr)
{
int bool=0;
corps=tete;
		       while(corps!=NULL)
		     {
			if(strcmp(corps->id,idr)==0)
		       {bool=1;
			break;
			}
		       else
		       corps=corps->suiv;
		     }
	   return bool;
}


int  verification(char *id,char *mp)
{
int bool=0;
corps=tete;
		       while(corps!=NULL)
		     {
		      if((strcmp(corps->id,id)==0)&&(strcmp(corps->mp,mp)==0))
		       {bool=1;
			break;
			}
		       else
		       corps=corps->suiv;
		     }
	   return bool;
}
void deluser(char *supp)
{
user *p1,*p2;
		      if(strcmp(tete->id,supp)==0)
			printf("\nvous ne pouvez pas supprimer root \n");
		      else
		       {
		       if(search_user_by_id(supp)==1)
		       {
		       p1=tete;     p2=tete->suiv;
		       while((p2->suiv!=NULL)&&(strcmp(p2->id,supp)!=0))
		       {
			p1=p2;  p2=p2->suiv;
			}
			p1->suiv=p2->suiv;
			if(p1->suiv==NULL)
			queue=p1;
			free(p2);
			}
			else
			printf("Suppression impossible:Ce user n'existe pas");
			}
}
void     list_user()
{
corps=tete;
printf("id:uid:mot de passe:gid:nom prenom\n");
while(corps!=NULL)
{
printf("%s : %d : %d : %d : %s : %s \n",corps->id,corps->uid,0,corps->gid,corps->nom,corps->prenom);
corps=corps->suiv;
}

}
int  nb_user()
{
int i=0;
corps=tete;
while(corps!=queue->suiv)
{
i++;
corps=corps->suiv;
}
return i;
}

////////////////////////
void list_by_gid()
{int n1,n=nb_user(),i=0,t[20],j,k;
corps=tete;
while(corps!=NULL)
{t[i]=corps->gid; corps=corps->suiv;
i++;
}
n1=n=i;
for(k=0;k<n-1;k++)
{
for(i=k+1;i<n;i++)
if(t[k]==t[i])
		{
		for(j=i;j<n;j++)
		{
		t[j]=t[j+1];
		n1--;
		}
		}
}
printf("\n------------------------------- \n");
i=0;
while(i<n1)
{
corps=tete;
printf("Groupe %d: ",t[i]);
do
{
if(corps->gid==t[i])
printf("%s \t",corps->id);
corps=corps->suiv;
}
while(corps!=NULL);
printf("\n-------------------------------\n");
i++;
}
}

void     menu()
{
clrscr();
printf("                          MANUEL\n");
printf("                processus : commande\n\n");
printf("           ajout d'un user: adduser <nom_user>\n");
printf("      suppression d'1 user: deluser <nom_user>\n");
printf("        recherche d'1 user: search <nom_user>\n");
printf("       affichage des users: ls\n");
printf("      affichage par groupe: lsgid\n");
printf("           changer de user: su <nom_user>\n");
printf("         changer de groupe: sg\n");
printf("   changer de mot de passe: passwd\n");
printf("               deconnexion: shutdown\n");
printf("           nombre de users: nbuser\n");
printf("          manuel des cmdes: man\n");
printf("           effacer l'ecran: clear\n");
printf("                   QUITTER: exit\n");
}
////////////
void   presentation()
{
int i=0;
clrscr();
printf("\n\n\n\n\n\n\n\n\n\n\n\ **************");delay(500);
printf(" BIENVENUE ");delay(500);printf("**************");delay(500);
clrscr(); printf("\n\n\n\n\n\nPROJET  ALGO\n\n"); delay(500);clrscr();
printf("\n\n\n\THEME:GESTION D'UTILISATEURS SOUS LINUX\n\n");delay(1000);
printf("             AUTEURS: \n\n ALOU MOUSTAPHA.BAH\n         && \n MARIAM MOUNTAGHA TOURE\n");
printf("\n\n\nAPPUYER SUR 1 TOUCHE POUR CONTINUER:");
getch();
clrscr();
for(i=1;i<=10;i++)
{
printf(". ");delay(100); }
clrscr();
}
////////////////////
void  goodbye()
{int i;
clrscr();
printf("\n\n\n\n\n\n\n\n\n");
for(i=1;i<=7;i++)
{
printf(". ");delay(200); }
printf("fermeture");
for(i=1;i<=7;i++)
{
printf(". ");delay(200); } delay(2000);
clrscr();
printf("\n\n\n\n\n\n\n\n\n\n A\n");
delay(100); gotoxy(wherex()+1,wherey()-1);
printf(" U");
delay(100); gotoxy(wherex()+1,wherey()-1);
printf(" R");
delay(100); gotoxy(wherex()+1,wherey()-1);
textcolor(142);
printf(" E");
delay(100); gotoxy(wherex()+1,wherey()-1);
printf(" V");
delay(100);          gotoxy(wherex()+1,wherey()-1);
printf(" O");
delay(100);          gotoxy(wherex()+1,wherey()-1);
printf(" I");
delay(100);          gotoxy(wherex()+1,wherey()-1);
printf(" R");
delay(500);
clrscr();
printf("\n\n\n\n\n\n\n  A\n");
delay(100);
printf("    U\n");
delay(100);
printf("      R\n");
delay(100);
textcolor(130);
printf("        E\n");
delay(100);
printf("          V\n");
textcolor(132);
delay(100);
printf("            O\n");
delay(100);
printf("              I\n");
delay(100);
printf("                R\n");
delay(2000);
}
///////////////////
void main()
{
char *c,*supp,*p,*idr,a,b,*log;
int i,j,k,x=0;
clrscr();
textmode(1);textcolor(15);
presentation();
printf("\n\n\n\n\n\n\n     Vs devez cr‚er Root pour commencer\n");
printf("\n\n\nAPPUYER SUR 1 TOUCHE POUR CONTINUER:");
getch();

creation();
clrscr();
textmode(2);textcolor(15);
printf("login:");
scanf("%s",c);
do
{
i=0;
printf("Mot de passe:");
while((a=getch())!='\r')
		  {
		  if(a=='\b')
			  { if(i!=0)
			     i--;
			      printf("\b");
			 clreol();
			  }
		  else
		      {
		  p[i]=a;
		  printf("*");
		  i++;
		  }
	      }
p[i]='\0';
if(verification(c,p)!=1)
{
printf("\nlogin ou mot de passe incorrect\n");
printf("login:");
scanf("%s",c);
}
else
{
if(x==0)
{
for(i=1;i<=11;i++)
{
printf(". ");delay(200); }
printf("\n");
textcolor(15);
menu();
printf("\nAPPUYER SUR 1 TOUCHE POUR CONTINUER:");
getch();
printf("\n\n please wait:");
for(i=1;i<=40;i++)
{
printf(". ");delay(200); }
clrscr();
x=1;
}
else printf("\n");
do
{
cprintf("#%s@localhost:\\>",c);
j=0;
while(((b=getchar())!=' ')&&(b!='\n'))
{ncmd[j]=b;j++;
}
ncmd[j]='\0';
{
if(strcmp(ncmd,"adduser")==0)
{if(strcmp(c,"root")==0)
{k=0;
while((a=getchar())!='\n')
{pcmd[k]=a;k++;
}
pcmd[k]='\0';
adduser(pcmd);  getch();
strcpy(ncmd,"\0");
}
else
{printf("Seul root dispose des autorisations necessaires\n");   getch(); }

}
else
if(strcmp(ncmd,"deluser")==0)
{
clrscr();
if(strcmp(c,"root")==0)
{
k=0;
while((a=getchar())!='\n')
{pcmd[k]=a;k++;
}
pcmd[k]='\0';
strcpy(supp,pcmd);
deluser(supp);
}
else {printf("Seul root dispose des autorisations necessaires\n");
getch(); }
}
if(strcmp(ncmd,"search")==0)
{
k=0;
while((b=getchar())!='\n')
{pcmd[k]=b;k++;
}
pcmd[k]='\0';
strcpy(idr,pcmd);
if(search_user_by_id(idr)!=1)
printf("\nUtilisateur non pr‚sent\n");
else
printf("\nUtilisateur pr‚sent\n");
getch();
}
else
if(strcmp(ncmd,"ls")==0)
{list_user(); getch();}
else
if(strcmp(ncmd,"lsgid")==0)
{list_by_gid();getch();}
else
if(strcmp(ncmd,"nbuser")==0)
{printf("Le nombre de users est: %d \n",nb_user());getch();}
else
if(strcmp(ncmd,"sg")==0)
{printf("entrez votre nouveau gid:");
if(search_user_by_id(c)==1)
scanf("%d",&corps->gid);
getch();}
else
if(strcmp(ncmd,"passwd")==0)
{printf("entrez votre ancien mot passe:");
i=0;
while((a=getch())!='\r')
		  {
		  if(a=='\b')
			  { if(i!=0)
			     i--;
			      printf("\b");
			 clreol();
			  }
		  else
		      {
		  p[i]=a;
		  printf("*");
		  i++;
		  }
	      }
p[i]='\0';
if(search_user_by_id(c)==1)
   {
   if(strcmp(corps->mp,p)==0)
    {
    printf("\nentrez votre nouveau mot passe:");
    i=0;
    while((a=getch())!='\r')
		  {
		  if(a=='\b')
			  { if(i!=0)
			     i--;
			      printf("\b");
			 clreol();
			  }
		  else
		      {
		  p[i]=a;
		  printf("*");
		  i++;
		  }
	      }
p[i]='\0';
strcpy(corps->mp,p);
printf("\n");
    }
  else
  printf("\nle mot de passe n'est pa bon r‚essayer une autre fois\n");
    }
getch();}
else
if((strcmp(ncmd,"su"))==0)
{  k=0;
while((a=getchar())!='\n')
{pcmd[k]=a;k++;
}
pcmd[k]='\0';
if(k==0)
{strcpy(c,"root");break;}
else
{strcpy(log,c);
strcpy(c,pcmd);
if(strcmp(log,"root")!=0)
break;}
}
else
if((strcmp(ncmd,"man"))==0)
{menu();getch();}
else
if((strcmp(ncmd,"shutdown"))==0)
{clrscr(); printf("login:");scanf("%s",c);break; }
else
if((strcmp(ncmd,"clear"))==0)
clrscr();
else
if((strcmp(ncmd,"exit"))==0)
			  {textmode(1);textcolor(130);goodbye();exit(0);}
else
if((strcmp(ncmd,""))==0)
{gotoxy(1,wherey());clreol();
}
else
printf("command not found\n");
}
}while((strcmp(ncmd,"shutdown"))!=0);
}
}while((strcmp(ncmd,"exit"))!=0);

}