#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif

#include "vserver.h"
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <sys/types.h>
#include <pwd.h>

#ifdef CLONE_NEWNET
#  define DECLARE_NS(X,Y) { #X, CLONE_NEW##X }
#else
#  warning CLONE_NEWNET not defined, using memorized value
#  define DECLARE_NS(X,Y) { #X, Y }
#endif

#define     SPACE_DIR       "pl_spaces"

static struct {
    const char * const		id;
    unsigned char		bit;
} const NS2BIT[] = {
    DECLARE_NS(NET,             32)

    /* All entries between FIRST_NS and the last defined namespace
     * must be filled in */
    #define     FIRST_NS        32
};

int
text2ns(const char *str)
{
  size_t	i;
  for (i=0; i<sizeof(NS2BIT)/sizeof(NS2BIT[0]); ++i)
    if (strcmp(NS2BIT[i].id, str)==0) return NS2BIT[i].bit;

  return -1;
}

const char *
ns2text(unsigned int bit)
{
  if ((size_t)bit>=sizeof(NS2BIT)/sizeof(NS2BIT[0])) return 0;
  return NS2BIT[bit - FIRST_NS].id;
}

#define VSERVERCONF "/etc/vservers/"

uint32_t
get_space_flag(xid_t xid) {
    char *ctx_space_dir, *space_name;
    struct passwd *slice_user;
    FILE *fp_in;
    unsigned int bit;

    slice_user = get_pwuid(xid);

    if (!slice_user)
        goto out_err1;

    ctx_space_dir=(char *) malloc(sizeof(VSERVERCONF "/" SPACE_DIR "Z")+strlen(slice_user->pw_name));
    if (!ctx_space_dir)
        goto out_err1;

    sprintf(ctx_space_dir,VSERVERCONF "%s/" SPACE_DIR, slice_user->pw_name);

    fp_in = fopen(ctx_space_dir,"r");

    if (!fp_in)
        goto out_dontcare;

    space_name=(char *) malloc(sizeof("GOBBLEDYGOOKZ"));

    if (!space_name) {
        goto out_err2;
    }

    fgets(space_name,sizeof("GOBBLEDYGOOKZ"),fp_in);

    bit = text2ns(space_name);

    free(space_name);
    free(ctx_space_dir);
    close(fp_in);

    return ((1<<bit)>>1);

out_err2:
    free(ctx_space_dir);
    close(fp_in);

out_err1:
    return 0;

out_dontcare:
    free(ctx_space_dir);
    return 0;

}