Mercurial > dropbear

annotate dbutil.h @ 1060:4c733310c21d nocircbuffer

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reword comment for clarity
author Matt Johnston <matt@ucc.asn.au>
date Sun, 01 Mar 2015 23:26:42 +0800
parents 01eea88963f3
children 36557295418e
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1 /*
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2 * Dropbear - a SSH2 server
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3 *
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4 * Copyright (c) 2002,2003 Matt Johnston
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5 * All rights reserved.
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6 *
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7 * Permission is hereby granted, free of charge, to any person obtaining a copy
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8 * of this software and associated documentation files (the "Software"), to deal
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9 * in the Software without restriction, including without limitation the rights
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10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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11 * copies of the Software, and to permit persons to whom the Software is
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12 * furnished to do so, subject to the following conditions:
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13 *
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14 * The above copyright notice and this permission notice shall be included in
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15 * all copies or substantial portions of the Software.
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16 *
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17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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23 * SOFTWARE. */
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24
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25 #ifndef DROPBEAR_DBUTIL_H_
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27 #define DROPBEAR_DBUTIL_H_
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28
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29 #include "includes.h"
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30 #include "buffer.h"
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31 #include "queue.h"
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33 #ifndef DISABLE_SYSLOG
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34 void startsyslog();
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35 #endif
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36
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37 #ifdef __GNUC__
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38 #define ATTRIB_PRINTF(fmt,args) __attribute__((format(printf, fmt, args)))
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39 #define ATTRIB_NORETURN __attribute__((noreturn))
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40 #define ATTRIB_SENTINEL __attribute__((sentinel))
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41 #else
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42 #define ATTRIB_PRINTF(fmt,args)
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43 #define ATTRIB_NORETURN
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44 #define ATTRIB_SENTINEL
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45 #endif
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46
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47 extern void (*_dropbear_exit)(int exitcode, const char* format, va_list param) ATTRIB_NORETURN;
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48 extern void (*_dropbear_log)(int priority, const char* format, va_list param);
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50 void dropbear_exit(const char* format, ...) ATTRIB_PRINTF(1,2) ATTRIB_NORETURN;
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51
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52 void dropbear_close(const char* format, ...) ATTRIB_PRINTF(1,2) ;
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53 void dropbear_log(int priority, const char* format, ...) ATTRIB_PRINTF(2,3) ;
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54
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55 void fail_assert(const char* expr, const char* file, int line) ATTRIB_NORETURN;
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56
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57 #ifdef DEBUG_TRACE
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58 void dropbear_trace(const char* format, ...) ATTRIB_PRINTF(1,2);
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59 void dropbear_trace2(const char* format, ...) ATTRIB_PRINTF(1,2);
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60 void printhex(const char * label, const unsigned char * buf, int len);
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61 void printmpint(const char *label, mp_int *mp);
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62 void debug_start_net();
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63 extern int debug_trace;
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64 #endif
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65
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66 char * stripcontrol(const char * text);
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67
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68 int spawn_command(void(*exec_fn)(void *user_data), void *exec_data,
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69 int *writefd, int *readfd, int *errfd, pid_t *pid);
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70 void run_shell_command(const char* cmd, unsigned int maxfd, char* usershell);
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71 #ifdef ENABLE_CONNECT_UNIX
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72 int connect_unix(const char* addr);
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73 #endif
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74 int buf_readfile(buffer* buf, const char* filename);
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75 int buf_getline(buffer * line, FILE * authfile);
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76
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77 void m_close(int fd);
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78 void * m_malloc(size_t size);
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79 void * m_strdup(const char * str);
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80 void * m_realloc(void* ptr, size_t size);
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81 #define m_free(X) do {free(X); (X) = NULL;} while (0);
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82 void m_burn(void* data, unsigned int len);
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83 void setnonblocking(int fd);
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84 void disallow_core();
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85 int m_str_to_uint(const char* str, unsigned int *val);
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86
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87 /* Used to force mp_ints to be initialised */
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88 #define DEF_MP_INT(X) mp_int X = {0, 0, 0, NULL}
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90 /* Dropbear assertion */
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91 #define dropbear_assert(X) do { if (!(X)) { fail_assert(#X, __FILE__, __LINE__); } } while (0)
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92
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93 /* Returns 0 if a and b have the same contents */
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94 int constant_time_memcmp(const void* a, const void *b, size_t n);
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95
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96 /* Returns a time in seconds that doesn't go backwards - does not correspond to
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97 a real-world clock */
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98 time_t monotonic_now();
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99
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100 char * expand_tilde(const char *inpath);
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101
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102 #endif /* DROPBEAR_DBUTIL_H_ */