#include "utils.h"
#include <string.h>
#include <errno.h>
#include <stdio.h>
#include <unistd.h>


static void print_w(const char *p) {
    const char *q;
    int saved_errno;

    if (!p) {
        return;
    }

    q = p;
    while (*q) {
        q++;
    }

    if (q == p) {
        return;
    }

    saved_errno = errno;

    while (p < q) {
        ssize_t n = write(STDERR_FILENO, p, (size_t) (q - p));
        if (n > 0)
            p += n;
        else if (n != (ssize_t) -1 || errno != EINTR)
            break;
    }

    errno = saved_errno;
}