mirror of
http://galexander.org/git/simplesshd.git
synced 2024-11-27 09:48:08 +00:00
115 lines
4.2 KiB
C
115 lines
4.2 KiB
C
/*
|
|
* Dropbear - a SSH2 server
|
|
*
|
|
* Copyright (c) 2002,2003 Matt Johnston
|
|
* All rights reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE. */
|
|
|
|
#ifndef _DBUTIL_H_
|
|
|
|
#define _DBUTIL_H_
|
|
|
|
#include "includes.h"
|
|
#include "buffer.h"
|
|
|
|
#ifndef DISABLE_SYSLOG
|
|
void startsyslog();
|
|
#endif
|
|
|
|
#ifdef __GNUC__
|
|
#define ATTRIB_PRINTF(fmt,args) __attribute__((format(printf, fmt, args)))
|
|
#define ATTRIB_NORETURN __attribute__((noreturn))
|
|
#define ATTRIB_SENTINEL __attribute__((sentinel))
|
|
#else
|
|
#define ATTRIB_PRINTF(fmt,args)
|
|
#define ATTRIB_NORETURN
|
|
#define ATTRIB_SENTINEL
|
|
#endif
|
|
|
|
extern void (*_dropbear_exit)(int exitcode, const char* format, va_list param) ATTRIB_NORETURN;
|
|
extern void (*_dropbear_log)(int priority, const char* format, va_list param);
|
|
|
|
void dropbear_exit(const char* format, ...) ATTRIB_PRINTF(1,2) ATTRIB_NORETURN;
|
|
|
|
void dropbear_close(const char* format, ...) ATTRIB_PRINTF(1,2) ;
|
|
void dropbear_log(int priority, const char* format, ...) ATTRIB_PRINTF(2,3) ;
|
|
|
|
void fail_assert(const char* expr, const char* file, int line) ATTRIB_NORETURN;
|
|
|
|
#ifdef DEBUG_TRACE
|
|
void dropbear_trace(const char* format, ...) ATTRIB_PRINTF(1,2);
|
|
void dropbear_trace2(const char* format, ...) ATTRIB_PRINTF(1,2);
|
|
void printhex(const char * label, const unsigned char * buf, int len);
|
|
void printmpint(const char *label, mp_int *mp);
|
|
extern int debug_trace;
|
|
#endif
|
|
|
|
enum dropbear_prio {
|
|
DROPBEAR_PRIO_DEFAULT = 10,
|
|
DROPBEAR_PRIO_LOWDELAY = 11,
|
|
DROPBEAR_PRIO_BULK = 12,
|
|
};
|
|
|
|
char * stripcontrol(const char * text);
|
|
void get_socket_address(int fd, char **local_host, char **local_port,
|
|
char **remote_host, char **remote_port, int host_lookup);
|
|
void getaddrstring(struct sockaddr_storage* addr,
|
|
char **ret_host, char **ret_port, int host_lookup);
|
|
void set_sock_nodelay(int sock);
|
|
void set_sock_priority(int sock, enum dropbear_prio prio);
|
|
int dropbear_listen(const char* address, const char* port,
|
|
int *socks, unsigned int sockcount, char **errstring, int *maxfd);
|
|
int spawn_command(void(*exec_fn)(void *user_data), void *exec_data,
|
|
int *writefd, int *readfd, int *errfd, pid_t *pid);
|
|
void run_shell_command(const char* cmd, unsigned int maxfd, char* usershell);
|
|
#ifdef ENABLE_CONNECT_UNIX
|
|
int connect_unix(const char* addr);
|
|
#endif
|
|
int connect_remote(const char* remotehost, const char* remoteport,
|
|
int nonblocking, char ** errstring);
|
|
int buf_readfile(buffer* buf, const char* filename);
|
|
int buf_getline(buffer * line, FILE * authfile);
|
|
|
|
void m_close(int fd);
|
|
void * m_malloc(size_t size);
|
|
void * m_strdup(const char * str);
|
|
void * m_realloc(void* ptr, size_t size);
|
|
#define m_free(X) free(X); (X) = NULL;
|
|
void m_burn(void* data, unsigned int len);
|
|
void setnonblocking(int fd);
|
|
void disallow_core();
|
|
int m_str_to_uint(const char* str, unsigned int *val);
|
|
|
|
/* Used to force mp_ints to be initialised */
|
|
#define DEF_MP_INT(X) mp_int X = {0, 0, 0, NULL}
|
|
|
|
/* Dropbear assertion */
|
|
#define dropbear_assert(X) do { if (!(X)) { fail_assert(#X, __FILE__, __LINE__); } } while (0)
|
|
|
|
/* Returns 0 if a and b have the same contents */
|
|
int constant_time_memcmp(const void* a, const void *b, size_t n);
|
|
|
|
/* Returns a time in seconds that doesn't go backwards - does not correspond to
|
|
a real-world clock */
|
|
time_t monotonic_now();
|
|
|
|
|
|
#endif /* _DBUTIL_H_ */
|