Grab all printfs with ptrace

I want to attach myself to a process and intercept all printf calls from that process.

main.c

int main()
{
    int i;
    for(i = 0; i < 10; i++)
    {
        printf("HelloWorld\n");
        sleep(5);
    }
    return 0;
}

Then to attach I have this code, and I want to do an infinite loop or until the main.c finishes -- infinite loop will work this is only Hello World with ptrace for testing, nothing fancy.

#include <sys/ptrace.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <sys/user.h>   // For user_regs_struct

int main(int argc, char *argv[])
{  
   struct user_regs_struct regs;

   pid_t traced_process = atoi(argv[1]);

   long t = ptrace(PTRACE_ATTACH, traced_process, NULL, NULL);

   wait(NULL);

   ptrace(PTRACE_GETREGS, traced_process, NULL, &regs);
   long ins = ptrace(PTRACE_PEEKTEXT, traced_process, regs.eip, NULL);

   printf("EIP: %lx Instruction executed: %lx\n", regs.eip, ins);

   char *c = &ins;
   printf("%c\n",c);

   ptrace(PTRACE_DETACH, traced_process, NULL, NULL);

   return 0;
}

I tried to put while(1) after attaching but that will actually just loop on the first printf executed in main.c.

I am really struggling with this, every example I run into is literally a copy paste of the other with huge amounts of code that is not even related to what I'm trying to do. I do know for sure that printf is a write() in the kernel, so that's what I should be looking for.

So again I want to get a reference to the string that printf is trying to print to the screen in the other terminal. How do I do this?