tree program help

[tendoeschate]

my following inorder traversal program is:

#include<stdio.h>
struct node
{
int info;
struct node *left;
struct node *right;
};

typedef struct node *nodeptr;

nodeptr getnode()
{
nodeptr p;
p=(nodeptr)malloc(sizeof(struct node *));
return p;
}
nodeptr maketree(int x)
{
nodeptr p;
p=getnode();
p->info=x;
p->left=NULL;
p->right=NULL;
return p;
}
void setleft(nodeptr p,int x)
{
if(p==NULL)
printf("void insertion");
else if(p->left!=NULL)
printf("invalid insertion");
else
p->left=maketree(x);
}
void setright(nodeptr p,int x)
{
if(p==NULL)
printf("void insertion");
else if(p->right!=NULL)
printf("invalid insertion");
else
p->right=maketree(x);
}
void intrav(nodeptr ptree)
{
if(ptree!=NULL)
{
intrav(ptree->left);
printf("%d\n",ptree->info);
intrav(ptree->right);
}
}
int main()
{
nodeptr tree;
nodeptr p,q;
int n;
scanf("%d",&n);
tree=maketree(n);
while(scanf("%d",&n)!=EOF)
{
p=q=tree;
while(n!=p->info&&q!=NULL)
{
p=q;
if(n<p->info)
q=p->left;
else
q=p->right;
}
if(n<p->info)
setleft(p,n);
else
setright(p,n);
}

intrav(tree);
return 0;
}

the output is not coming correct
can yu suggest me the errors

[Zyl]

Use the CODE tag and make sure indentation looks properly. Noone will bother to try to read in when on it when it looks the way it does right now. D;