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/* $OpenBSD: misc.h,v 1.43 2010/07/13 23:13:16 djm Exp $ */
/*
* 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".
*/
#ifndef _MISC_H
#define _MISC_H
/* misc.c */
char *chop(char *);
char *strdelim(char **);
int set_nonblock(int);
int unset_nonblock(int);
void set_nodelay(int);
int a2port(const char *);
int a2tun(const char *, int *);
char *put_host_port(const char *, u_short);
char *hpdelim(char **);
char *cleanhostname(char *);
char *colon(char *);
long convtime(const char *);
char *tilde_expand_filename(const char *, uid_t);
char *percent_expand(const char *, ...) __attribute__((__sentinel__));
char *tohex(const void *, size_t);
void sanitise_stdfd(void);
void ms_subtract_diff(struct timeval *, int *);
void ms_to_timeval(struct timeval *, int);
void sock_set_v6only(int);
int timingsafe_bcmp(const void *, const void *, size_t);
struct passwd *pwcopy(struct passwd *);
const char *ssh_gai_strerror(int);
typedef struct arglist arglist;
struct arglist {
char **list;
u_int num;
u_int nalloc;
};
void addargs(arglist *, char *, ...)
__attribute__((format(printf, 2, 3)));
void replacearg(arglist *, u_int, char *, ...)
__attribute__((format(printf, 3, 4)));
void freeargs(arglist *);
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)
/* 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)));
/* 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 *);
int secure_permissions(struct stat *st, uid_t uid);
#endif /* _MISC_H */
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