1 /* $NetBSD: misc.h,v 1.6 2013/11/08 19:18:25 christos Exp $ */ 2 /* $OpenBSD: misc.h,v 1.49 2013/06/01 13:15:52 dtucker Exp $ */ 3 4 /* 5 * Author: Tatu Ylonen <ylo@cs.hut.fi> 6 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland 7 * All rights reserved 8 * 9 * As far as I am concerned, the code I have written for this software 10 * can be used freely for any purpose. Any derived versions of this 11 * software must be clearly marked as such, and if the derived work is 12 * incompatible with the protocol description in the RFC file, it must be 13 * called by a name other than "ssh" or "Secure Shell". 14 */ 15 16 #ifndef _MISC_H 17 #define _MISC_H 18 19 /* misc.c */ 20 21 char *chop(char *); 22 char *strdelim(char **); 23 int set_nonblock(int); 24 int unset_nonblock(int); 25 void set_nodelay(int); 26 int a2port(const char *); 27 int a2tun(const char *, int *); 28 char *put_host_port(const char *, u_short); 29 char *hpdelim(char **); 30 char *cleanhostname(char *); 31 char *colon(char *); 32 long convtime(const char *); 33 char *tilde_expand_filename(const char *, uid_t); 34 char *percent_expand(const char *, ...) 35 #if __GNUC_PREREQ__(4, 0) 36 __attribute__((__sentinel__)) 37 #endif 38 ; 39 char *tohex(const void *, size_t); 40 void sanitise_stdfd(void); 41 void ms_subtract_diff(struct timeval *, int *); 42 void ms_to_timeval(struct timeval *, int); 43 time_t monotime(void); 44 45 int timingsafe_bcmp(const void *, const void *, size_t); 46 long long strtonum(const char *, long long, long long, const char **); 47 48 struct passwd *pwcopy(struct passwd *); 49 const char *ssh_gai_strerror(int); 50 51 typedef struct arglist arglist; 52 struct arglist { 53 char **list; 54 u_int num; 55 u_int nalloc; 56 }; 57 void addargs(arglist *, const char *, ...) 58 __attribute__((format(printf, 2, 3))); 59 void replacearg(arglist *, u_int, const char *, ...) 60 __attribute__((format(printf, 3, 4))); 61 void freeargs(arglist *); 62 63 int tun_open(int, int); 64 65 /* Common definitions for ssh tunnel device forwarding */ 66 #define SSH_TUNMODE_NO 0x00 67 #define SSH_TUNMODE_POINTOPOINT 0x01 68 #define SSH_TUNMODE_ETHERNET 0x02 69 #define SSH_TUNMODE_DEFAULT SSH_TUNMODE_POINTOPOINT 70 #define SSH_TUNMODE_YES (SSH_TUNMODE_POINTOPOINT|SSH_TUNMODE_ETHERNET) 71 72 #define SSH_TUNID_ANY 0x7fffffff 73 #define SSH_TUNID_ERR (SSH_TUNID_ANY - 1) 74 #define SSH_TUNID_MAX (SSH_TUNID_ANY - 2) 75 76 /* Functions to extract or store big-endian words of various sizes */ 77 u_int64_t get_u64(const void *) 78 #ifdef __OpenBSD__ 79 __attribute__((__bounded__( __minbytes__, 1, 8))) 80 #endif 81 ; 82 u_int32_t get_u32(const void *) 83 #ifdef __OpenBSD__ 84 __attribute__((__bounded__( __minbytes__, 1, 4))) 85 #endif 86 ; 87 u_int16_t get_u16(const void *) 88 #ifdef __OpenBSD__ 89 __attribute__((__bounded__( __minbytes__, 1, 2))) 90 #endif 91 ; 92 void put_u64(void *, u_int64_t) 93 #ifdef __OpenBSD__ 94 __attribute__((__bounded__( __minbytes__, 1, 8))) 95 #endif 96 ; 97 void put_u32(void *, u_int32_t) 98 #ifdef __OpenBSD__ 99 __attribute__((__bounded__( __minbytes__, 1, 4))) 100 #endif 101 ; 102 void put_u16(void *, u_int16_t) 103 #ifdef __OpenBSD__ 104 __attribute__((__bounded__( __minbytes__, 1, 2))) 105 #endif 106 ; 107 108 struct bwlimit { 109 size_t buflen; 110 u_int64_t rate, thresh, lamt; 111 struct timeval bwstart, bwend; 112 }; 113 114 void bandwidth_limit_init(struct bwlimit *, u_int64_t, size_t); 115 void bandwidth_limit(struct bwlimit *, size_t); 116 117 int parse_ipqos(const char *); 118 const char *iptos2str(int); 119 void mktemp_proto(char *, size_t); 120 121 /* readpass.c */ 122 123 #define RP_ECHO 0x0001 124 #define RP_ALLOW_STDIN 0x0002 125 #define RP_ALLOW_EOF 0x0004 126 #define RP_USE_ASKPASS 0x0008 127 128 char *read_passphrase(const char *, int); 129 int ask_permission(const char *, ...) __attribute__((format(printf, 1, 2))); 130 int read_keyfile_line(FILE *, const char *, char *, size_t, u_long *); 131 132 #endif /* _MISC_H */ 133