#include <errno.h>
#include <luna.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/syscall.h>
#include <unistd.h>

extern "C"
{
    int fclose(FILE*)
    {
        NOT_IMPLEMENTED("fclose");
    }
    int fflush(FILE*)
    {
        NOT_IMPLEMENTED("fflush");
    }
    FILE* fopen(const char*, const char*)
    {
        NOT_IMPLEMENTED("fopen");
    }
    int fprintf(FILE*, const char* format, ...) // FIXME: Make fprintf print to the selected file instead of stdout.
    {
        va_list ap;
        va_start(ap, format);
        int written = vprintf(format, ap);
        va_end(ap);
        return written;
    }
    size_t fread(void*, size_t, size_t, FILE*)
    {
        NOT_IMPLEMENTED("fread");
    }
    int fseek(FILE*, long, int)
    {
        NOT_IMPLEMENTED("fseek");
    }
    long ftell(FILE*)
    {
        NOT_IMPLEMENTED("ftell");
    }
    size_t fwrite(const void*, size_t, size_t, FILE*)
    {
        NOT_IMPLEMENTED("fwrite");
    }
    void setbuf(FILE*, char*)
    {
        NOT_IMPLEMENTED("setbuf");
    }
    int vfprintf(FILE*, const char* format,
                 va_list ap) // FIXME: Make vfprintf print to the selected file instead of stdout.
    {
        return vprintf(format, ap);
    }
    int puts(const char* s)
    {
        long nwritten = syscall(SYS_write, s, strlen(s));
        if (nwritten < 0) return -1;
        nwritten += syscall(SYS_write, "\n", 1);
        return (int)nwritten;
    }
    int snprintf(char* str, size_t max, const char* format, ...)
    {
        va_list ap;
        va_start(ap, format);
        int written = vsnprintf(str, max, format, ap);
        va_end(ap);
        return written;
    }
    int sprintf(char* str, const char* format, ...)
    {
        va_list ap;
        va_start(ap, format);
        int written = vsprintf(str, format, ap);
        va_end(ap);
        return written;
    }
    int printf(const char* format, ...)
    {
        va_list ap;
        va_start(ap, format);
        int written = vprintf(format, ap);
        va_end(ap);
        return written;
    }
    void perror(const char* s) // FIXME: Print to stderr, whenever we have an stderr.
    {
        if (s && *s) { printf("%s: ", s); }
        printf("%s\n", strerror(errno));
    }
}