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IABSD.fr/src/usr.bin/ssh/misc.h
dtucker
- usr.bin/ssh/misc.h
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/* $OpenBSD: misc.h,v 1.87 2020/05/29 11:17:56 dtucker 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 #include <sys/time.h> #include <sys/types.h> #include <sys/socket.h> /* Data structure for representing a forwarding request. */ struct Forward { char *listen_host; /* Host (address) to listen on. */ int listen_port; /* Port to forward. */ char *listen_path; /* Path to bind domain socket. */ char *connect_host; /* Host to connect. */ int connect_port; /* Port to connect on connect_host. */ char *connect_path; /* Path to connect domain socket. */ int allocated_port; /* Dynamically allocated listen port */ int handle; /* Handle for dynamic listen ports */ }; int forward_equals(const struct Forward *, const struct Forward *); int daemonized(void); /* Common server and client forwarding options. */ struct ForwardOptions { int gateway_ports; /* Allow remote connects to forwarded ports. */ mode_t streamlocal_bind_mask; /* umask for streamlocal binds */ int streamlocal_bind_unlink; /* unlink socket before bind */ }; /* misc.c */ char *chop(char *); void skip_space(char **); char *strdelim(char **); char *strdelimw(char **); int set_nonblock(int); int unset_nonblock(int); void set_nodelay(int); int set_reuseaddr(int); char *get_rdomain(int); int set_rdomain(int, const char *); int waitrfd(int, int *); int timeout_connect(int, const struct sockaddr *, socklen_t, int *); int a2port(const char *); int a2tun(const char *, int *); char *put_host_port(const char *, u_short); char *hpdelim2(char **, char *); char *hpdelim(char **); char *cleanhostname(char *); char *colon(char *); int parse_user_host_path(const char *, char **, char **, char **); int parse_user_host_port(const char *, char **, char **, int *); int parse_uri(const char *, const char *, char **, char **, int *, char **); long convtime(const char *); const char *fmt_timeframe(time_t t); char *tilde_expand_filename(const char *, uid_t); char *dollar_expand(int *, const char *string, ...); char *percent_expand(const char *, ...) __attribute__((__sentinel__)); char *percent_dollar_expand(const char *, ...) __attribute__((__sentinel__)); char *tohex(const void *, size_t); void xextendf(char **s, const char *sep, const char *fmt, ...) __attribute__((__format__ (printf, 3, 4))) __attribute__((__nonnull__ (3))); void sanitise_stdfd(void); void ms_subtract_diff(struct timeval *, int *); void ms_to_timeval(struct timeval *, int); void monotime_ts(struct timespec *); void monotime_tv(struct timeval *); time_t monotime(void); double monotime_double(void); void lowercase(char *s); int unix_listener(const char *, int, int); int valid_domain(char *, int, const char **); int valid_env_name(const char *); const char *atoi_err(const char *, int *); int parse_absolute_time(const char *, uint64_t *); void format_absolute_time(uint64_t, char *, size_t); int path_absolute(const char *); 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, char **); /* 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) /* Fake port to indicate that host field is really a path. */ #define PORT_STREAMLOCAL -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))); /* Little-endian store/load, used by umac.c */ u_int32_t get_u32_le(const void *) __attribute__((__bounded__(__minbytes__, 1, 4))); void put_u32_le(void *, u_int32_t) __attribute__((__bounded__(__minbytes__, 1, 4))); struct bwlimit { size_t buflen; u_int64_t rate; /* desired rate in kbit/s */ u_int64_t thresh; /* threshold after which we'll check timers */ u_int64_t lamt; /* amount written in last timer interval */ struct timeval bwstart, bwend; }; void bandwidth_limit_init(struct bwlimit *, u_int64_t, size_t); void bandwidth_limit(struct bwlimit *, size_t); int parse_ipqos(const char *); const char *iptos2str(int); void mktemp_proto(char *, size_t); void child_set_env(char ***envp, u_int *envsizep, const char *name, const char *value); int argv_split(const char *, int *, char ***); char *argv_assemble(int, char **argv); int exited_cleanly(pid_t, const char *, const char *, int); struct stat; int safe_path(const char *, struct stat *, const char *, uid_t, char *, size_t); int safe_path_fd(int, const char *, struct passwd *, char *err, size_t errlen); /* authorized_key-style options parsing helpers */ int opt_flag(const char *opt, int allow_negate, const char **optsp); char *opt_dequote(const char **sp, const char **errstrp); int opt_match(const char **opts, const char *term); /* readpass.c */ #define RP_ECHO 0x0001 #define RP_ALLOW_STDIN 0x0002 #define RP_ALLOW_EOF 0x0004 #define RP_USE_ASKPASS 0x0008 struct notifier_ctx; char *read_passphrase(const char *, int); int ask_permission(const char *, ...) __attribute__((format(printf, 1, 2))); struct notifier_ctx *notify_start(int, const char *, ...) __attribute__((format(printf, 2, 3))); void notify_complete(struct notifier_ctx *); #define MINIMUM(a, b) (((a) < (b)) ? (a) : (b)) #define MAXIMUM(a, b) (((a) > (b)) ? (a) : (b)) #define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y)) typedef void (*sshsig_t)(int); sshsig_t ssh_signal(int, sshsig_t); #endif /* _MISC_H */