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      1 /*
      2  * Dropbear - a SSH2 server
      3  *
      4  * Copyright (c) 2002,2003 Matt Johnston
      5  * All rights reserved.
      6  *
      7  * Permission is hereby granted, free of charge, to any person obtaining a copy
      8  * of this software and associated documentation files (the "Software"), to deal
      9  * in the Software without restriction, including without limitation the rights
     10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     11  * copies of the Software, and to permit persons to whom the Software is
     12  * furnished to do so, subject to the following conditions:
     13  *
     14  * The above copyright notice and this permission notice shall be included in
     15  * all copies or substantial portions of the Software.
     16  *
     17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
     20  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     23  * SOFTWARE. */
     24 
     25 #ifndef _DBUTIL_H_
     26 
     27 #define _DBUTIL_H_
     28 
     29 #include "includes.h"
     30 #include "buffer.h"
     31 
     32 #ifndef DISABLE_SYSLOG
     33 void startsyslog();
     34 #endif
     35 
     36 extern void (*_dropbear_exit)(int exitcode, const char* format, va_list param);
     37 extern void (*_dropbear_log)(int priority, const char* format, va_list param);
     38 
     39 void dropbear_exit(const char* format, ...);
     40 void dropbear_close(const char* format, ...);
     41 void dropbear_log(int priority, const char* format, ...);
     42 void fail_assert(const char* expr, const char* file, int line);
     43 #ifdef DEBUG_TRACE
     44 void dropbear_trace(const char* format, ...);
     45 void printhex(const char * label, const unsigned char * buf, int len);
     46 extern int debug_trace;
     47 #endif
     48 char * stripcontrol(const char * text);
     49 unsigned char * getaddrstring(struct sockaddr_storage* addr, int withport);
     50 int dropbear_listen(const char* address, const char* port,
     51 		int *socks, unsigned int sockcount, char **errstring, int *maxfd);
     52 int connect_remote(const char* remotehost, const char* remoteport,
     53 		int nonblocking, char ** errstring);
     54 char* getaddrhostname(struct sockaddr_storage * addr);
     55 int buf_readfile(buffer* buf, const char* filename);
     56 int buf_getline(buffer * line, FILE * authfile);
     57 
     58 void m_close(int fd);
     59 void * m_malloc(size_t size);
     60 void * m_strdup(const char * str);
     61 void * m_realloc(void* ptr, size_t size);
     62 #define m_free(X) __m_free(X); (X) = NULL;
     63 void __m_free(void* ptr);
     64 void m_burn(void* data, unsigned int len);
     65 void setnonblocking(int fd);
     66 void disallow_core();
     67 
     68 /* Used to force mp_ints to be initialised */
     69 #define DEF_MP_INT(X) mp_int X = {0, 0, 0, NULL}
     70 
     71 /* Dropbear assertion */
     72 #define dropbear_assert(X) do { if (!(X)) { fail_assert(#X, __FILE__, __LINE__); } } while (0)
     73 
     74 #endif /* _DBUTIL_H_ */
     75