misc.h 3.28 KB
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/* $OpenBSD: misc.h,v 1.50 2013/10/14 23:28:23 djm Exp $ */
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/*
 * Author: Tatu Ylonen <ylo@cs.hut.fi>
 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
 *                    All rights reserved
 *
 * As far as I am concerned, the code I have written for this software
 * can be used freely for any purpose.  Any derived versions of this
 * software must be clearly marked as such, and if the derived work is
 * incompatible with the protocol description in the RFC file, it must be
 * called by a name other than "ssh" or "Secure Shell".
 */

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#ifndef _MISC_H
#define _MISC_H

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/* misc.c */

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char	*chop(char *);
char	*strdelim(char **);
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int	 set_nonblock(int);
int	 unset_nonblock(int);
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void	 set_nodelay(int);
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int	 a2port(const char *);
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int	 a2tun(const char *, int *);
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char	*put_host_port(const char *, u_short);
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char	*hpdelim(char **);
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char	*cleanhostname(char *);
char	*colon(char *);
long	 convtime(const char *);
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char	*tilde_expand_filename(const char *, uid_t);
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char	*percent_expand(const char *, ...) __attribute__((__sentinel__));
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char	*tohex(const void *, size_t);
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void	 sanitise_stdfd(void);
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void	 ms_subtract_diff(struct timeval *, int *);
void	 ms_to_timeval(struct timeval *, int);
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time_t	 monotime(void);
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void	 lowercase(char *s);

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void	 sock_set_v6only(int);
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struct passwd *pwcopy(struct passwd *);
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const char *ssh_gai_strerror(int);
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typedef struct arglist arglist;
struct arglist {
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	char    **list;
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	u_int   num;
	u_int   nalloc;
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};
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void	 addargs(arglist *, char *, ...)
	     __attribute__((format(printf, 2, 3)));
void	 replacearg(arglist *, u_int, char *, ...)
	     __attribute__((format(printf, 3, 4)));
void	 freeargs(arglist *);
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int	 tun_open(int, int);

/* Common definitions for ssh tunnel device forwarding */
#define SSH_TUNMODE_NO		0x00
#define SSH_TUNMODE_POINTOPOINT	0x01
#define SSH_TUNMODE_ETHERNET	0x02
#define SSH_TUNMODE_DEFAULT	SSH_TUNMODE_POINTOPOINT
#define SSH_TUNMODE_YES		(SSH_TUNMODE_POINTOPOINT|SSH_TUNMODE_ETHERNET)

#define SSH_TUNID_ANY		0x7fffffff
#define SSH_TUNID_ERR		(SSH_TUNID_ANY - 1)
#define SSH_TUNID_MAX		(SSH_TUNID_ANY - 2)
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/* Functions to extract or store big-endian words of various sizes */
u_int64_t	get_u64(const void *)
    __attribute__((__bounded__( __minbytes__, 1, 8)));
u_int32_t	get_u32(const void *)
    __attribute__((__bounded__( __minbytes__, 1, 4)));
u_int16_t	get_u16(const void *)
    __attribute__((__bounded__( __minbytes__, 1, 2)));
void		put_u64(void *, u_int64_t)
    __attribute__((__bounded__( __minbytes__, 1, 8)));
void		put_u32(void *, u_int32_t)
    __attribute__((__bounded__( __minbytes__, 1, 4)));
void		put_u16(void *, u_int16_t)
    __attribute__((__bounded__( __minbytes__, 1, 2)));

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struct bwlimit {
	size_t buflen;
	u_int64_t rate, thresh, lamt;
	struct timeval bwstart, bwend;
};

void bandwidth_limit_init(struct bwlimit *, u_int64_t, size_t);
void bandwidth_limit(struct bwlimit *, size_t);

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int parse_ipqos(const char *);
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const char *iptos2str(int);
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void mktemp_proto(char *, size_t);
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/* readpass.c */

#define RP_ECHO			0x0001
#define RP_ALLOW_STDIN		0x0002
#define RP_ALLOW_EOF		0x0004
#define RP_USE_ASKPASS		0x0008

char	*read_passphrase(const char *, int);
int	 ask_permission(const char *, ...) __attribute__((format(printf, 1, 2)));
int	 read_keyfile_line(FILE *, const char *, char *, size_t, u_long *);

#endif /* _MISC_H */