src/jail.h


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#ifndef POTD_JAIL_H
#define POTD_JAIL_H 1

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

#define MAX_STACKSIZE BUFSIZ

typedef struct jail_ctx {
    pid_t jail_pid;
    size_t stacksize;
    void *stack_ptr;
    void *stack_beg;
} jail_ctx;


void jail_init(jail_ctx **ctx, size_t stacksize);

void jail_free(jail_ctx **ctx);

int jail_fork(jail_ctx *ctx);

#endif