crypto/external/bsd/openssh/dist/misc.h

   1 /*      $NetBSD$        */
   2 /* $OpenBSD: misc.h,v 1.38 2008/06/12 20:38:28 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
  44 long long strtonum(const char *, long long, long long, const char **);
  45
  46 struct passwd *pwcopy(struct passwd *);
  47 const char *ssh_gai_strerror(int);
  48
  49 typedef struct arglist arglist;
  50 struct arglist {
  51         char    **list;
  52         u_int   num;
  53         u_int   nalloc;
  54 };
  55 void     addargs(arglist *, char *, ...)
  56              __attribute__((format(printf, 2, 3)));
  57 void     replacearg(arglist *, u_int, char *, ...)
  58              __attribute__((format(printf, 3, 4)));
  59 void     freeargs(arglist *);
  60
  61 int      tun_open(int, int);
  62
  63 /* Common definitions for ssh tunnel device forwarding */
  64 #define SSH_TUNMODE_NO          0x00
  65 #define SSH_TUNMODE_POINTOPOINT 0x01
  66 #define SSH_TUNMODE_ETHERNET    0x02
  67 #define SSH_TUNMODE_DEFAULT     SSH_TUNMODE_POINTOPOINT
  68 #define SSH_TUNMODE_YES         (SSH_TUNMODE_POINTOPOINT|SSH_TUNMODE_ETHERNET)
  69
  70 #define SSH_TUNID_ANY           0x7fffffff
  71 #define SSH_TUNID_ERR           (SSH_TUNID_ANY - 1)
  72 #define SSH_TUNID_MAX           (SSH_TUNID_ANY - 2)
  73
  74 /* Functions to extract or store big-endian words of various sizes */
  75 u_int64_t       get_u64(const void *)
  76 #ifdef __OpenBSD__
  77     __attribute__((__bounded__( __minbytes__, 1, 8)))
  78 #endif
  79     ;
  80 u_int32_t       get_u32(const void *)
  81 #ifdef __OpenBSD__
  82     __attribute__((__bounded__( __minbytes__, 1, 4)))
  83 #endif
  84     ;
  85 u_int16_t       get_u16(const void *)
  86 #ifdef __OpenBSD__
  87     __attribute__((__bounded__( __minbytes__, 1, 2)))
  88 #endif
  89     ;
  90 void            put_u64(void *, u_int64_t)
  91 #ifdef __OpenBSD__
  92     __attribute__((__bounded__( __minbytes__, 1, 8)))
  93 #endif
  94     ;
  95 void            put_u32(void *, u_int32_t)
  96 #ifdef __OpenBSD__
  97     __attribute__((__bounded__( __minbytes__, 1, 4)))
  98 #endif
  99     ;
 100 void            put_u16(void *, u_int16_t)
 101 #ifdef __OpenBSD__
 102     __attribute__((__bounded__( __minbytes__, 1, 2)))
 103 #endif
 104     ;
 105
 106
 107 /* readpass.c */
 108
 109 #define RP_ECHO                 0x0001
 110 #define RP_ALLOW_STDIN          0x0002
 111 #define RP_ALLOW_EOF            0x0004
 112 #define RP_USE_ASKPASS          0x0008
 113
 114 char    *read_passphrase(const char *, int);
 115 int      ask_permission(const char *, ...) __attribute__((format(printf, 1, 2)));
 116 int      read_keyfile_line(FILE *, const char *, char *, size_t, u_long *);
 117
 118 #endif /* _MISC_H */