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/* misc. universal things
* Copyright (C) 1997 Angelos D. Keromytis.
* Copyright (C) 1998-2001 D. Hugh Redelmeier.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#ifndef _DEFS_H
#define _DEFS_H
#include <string.h>
#include <sys/types.h>
#include <chunk.h>
#ifdef KLIPS
# define USED_BY_KLIPS /* ignore */
#else
# define USED_BY_KLIPS UNUSED
#endif
#ifdef DEBUG
# define USED_BY_DEBUG /* ignore */
#else
# define USED_BY_DEBUG UNUSED
#endif
/* type of serial number of a state object
* Needed in connections.h and state.h; here to simplify dependencies.
*/
typedef unsigned long so_serial_t;
#define SOS_NOBODY 0 /* null serial number */
#define SOS_FIRST 1 /* first normal serial number */
/* memory allocation */
#define clone_thing(orig) clalloc((void *)&(orig), sizeof(orig))
#define clone_str(str) \
((str) == NULL? NULL : strdup(str))
#define replace(p, q) \
{ free(p); (p) = (q); }
#define chunkcpy(dst, chunk) \
{ memcpy(dst, chunk.ptr, chunk.len); dst += chunk.len;}
extern char* temporary_cyclic_buffer(void);
extern char* concatenate_paths(char *a, char *b);
/* move a chunk to a memory position and free it after insertion */
extern void mv_chunk(u_char **pos, chunk_t content);
/* warns a predefined interval before expiry */
extern const char* check_expiry(time_t expiration_date,
int warning_interval, bool strict);
#define MAX_PROMPT_PASS_TRIALS 5
#define PROMPT_PASS_LEN 64
/* struct used to prompt for a secret passphrase
* from a console with file descriptor fd
*/
typedef struct {
char secret[PROMPT_PASS_LEN+1];
bool prompt;
int fd;
} prompt_pass_t;
/* filter eliminating the directory entries '.' and '..' */
typedef struct dirent dirent_t;
extern int file_select(const dirent_t *entry);
/* cleanly exit Pluto */
extern void exit_pluto(int /*status*/) NEVER_RETURNS;
/* zero all bytes */
#define zero(x) memset((x), '\0', sizeof(*(x)))
/* are all bytes 0? */
extern bool all_zero(const unsigned char *m, size_t len);
/* pad_up(n, m) is the amount to add to n to make it a multiple of m */
#define pad_up(n, m) (((m) - 1) - (((n) + (m) - 1) % (m)))
#endif /* _DEFS_H */
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