ptrace interposing

ptrace-interposing.c

#include <sys/types.h>
#include <sys/ptrace.h>

int ptrace_interposed(int request, pid_t pid, caddr_t addr, int data)
{
    return 0;
}

const struct { void *hook_func; void *real_func; }
interposers[] __attribute__ ((section("__DATA, __interpose"))) = {
    { ptrace_interposed, ptrace }
};