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/*
* 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 DROPBEAR_DBUTIL_H_
#define DROPBEAR_DBUTIL_H_
#include "includes.h"
#include "buffer.h"
#include "queue.h"
#include "dbhelpers.h"
#include "dbmalloc.h"
#ifndef DISABLE_SYSLOG
void startsyslog(const char *ident);
#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;
#if 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);
void debug_start_net(void);
extern int debug_trace;
#endif
char * stripcontrol(const char * text);
int spawn_command(void(*exec_fn)(const void *user_data), const void *exec_data,
int *writefd, int *readfd, int *errfd, pid_t *pid);
void run_shell_command(const char* cmd, unsigned int maxfd, char* usershell);
#if ENABLE_CONNECT_UNIX
int connect_unix(const char* addr);
#endif
int buf_readfile(buffer* buf, const char* filename);
int buf_getline(buffer * line, FILE * authfile);
void m_close(int fd);
void setnonblocking(int fd);
void disallow_core(void);
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(void);
char * expand_homedir_path(const char *inpath);
void fsync_parent_dir(const char* fn);
#endif /* DROPBEAR_DBUTIL_H_ */
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