1 /* $OpenBSD: misc.h,v 1.43 2010/07/13 23:13:16 djm Exp $ */ 2 3 /* 4 * Author: Tatu Ylonen <ylo@cs.hut.fi> 5 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland 6 * All rights reserved 7 * 8 * As far as I am concerned, the code I have written for this software 9 * can be used freely for any purpose. Any derived versions of this 10 * software must be clearly marked as such, and if the derived work is 11 * incompatible with the protocol description in the RFC file, it must be 12 * called by a name other than "ssh" or "Secure Shell". 13 */ 14 15 #ifndef _MISC_H 16 #define _MISC_H 17 18 /* misc.c */ 19 20 char *chop(char *); 21 char *strdelim(char **); 22 int set_nonblock(int); 23 int unset_nonblock(int); 24 void set_nodelay(int); 25 int a2port(const char *); 26 int a2tun(const char *, int *); 27 char *put_host_port(const char *, u_short); 28 char *hpdelim(char **); 29 char *cleanhostname(char *); 30 char *colon(char *); 31 long convtime(const char *); 32 char *tilde_expand_filename(const char *, uid_t); 33 char *percent_expand(const char *, ...) __attribute__((__sentinel__)); 34 char *tohex(const void *, size_t); 35 void sanitise_stdfd(void); 36 void ms_subtract_diff(struct timeval *, int *); 37 void ms_to_timeval(struct timeval *, int); 38 void sock_set_v6only(int); 39 int timingsafe_bcmp(const void *, const void *, size_t); 40 41 struct passwd *pwcopy(struct passwd *); 42 const char *ssh_gai_strerror(int); 43 44 typedef struct arglist arglist; 45 struct arglist { 46 char **list; 47 u_int num; 48 u_int nalloc; 49 }; 50 void addargs(arglist *, char *, ...) 51 __attribute__((format(printf, 2, 3))); 52 void replacearg(arglist *, u_int, char *, ...) 53 __attribute__((format(printf, 3, 4))); 54 void freeargs(arglist *); 55 56 int tun_open(int, int); 57 58 /* Common definitions for ssh tunnel device forwarding */ 59 #define SSH_TUNMODE_NO 0x00 60 #define SSH_TUNMODE_POINTOPOINT 0x01 61 #define SSH_TUNMODE_ETHERNET 0x02 62 #define SSH_TUNMODE_DEFAULT SSH_TUNMODE_POINTOPOINT 63 #define SSH_TUNMODE_YES (SSH_TUNMODE_POINTOPOINT|SSH_TUNMODE_ETHERNET) 64 65 #define SSH_TUNID_ANY 0x7fffffff 66 #define SSH_TUNID_ERR (SSH_TUNID_ANY - 1) 67 #define SSH_TUNID_MAX (SSH_TUNID_ANY - 2) 68 69 /* Functions to extract or store big-endian words of various sizes */ 70 u_int64_t get_u64(const void *) 71 __attribute__((__bounded__( __minbytes__, 1, 8))); 72 u_int32_t get_u32(const void *) 73 __attribute__((__bounded__( __minbytes__, 1, 4))); 74 u_int16_t get_u16(const void *) 75 __attribute__((__bounded__( __minbytes__, 1, 2))); 76 void put_u64(void *, u_int64_t) 77 __attribute__((__bounded__( __minbytes__, 1, 8))); 78 void put_u32(void *, u_int32_t) 79 __attribute__((__bounded__( __minbytes__, 1, 4))); 80 void put_u16(void *, u_int16_t) 81 __attribute__((__bounded__( __minbytes__, 1, 2))); 82 83 84 /* readpass.c */ 85 86 #define RP_ECHO 0x0001 87 #define RP_ALLOW_STDIN 0x0002 88 #define RP_ALLOW_EOF 0x0004 89 #define RP_USE_ASKPASS 0x0008 90 91 char *read_passphrase(const char *, int); 92 int ask_permission(const char *, ...) __attribute__((format(printf, 1, 2))); 93 int read_keyfile_line(FILE *, const char *, char *, size_t, u_long *); 94 95 #endif /* _MISC_H */ 96