[6] | 1 | /**
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[28] | 2 | * @file cf_debug.c
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| 3 | * @author myusgun <myusgun@gmail.com>
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| 4 | * @version 0.1
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[6] | 5 | */
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| 6 | #include "cf_debug.h"
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| 7 | #include "cf_local.h"
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| 8 |
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| 9 | #include <stdlib.h>
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| 10 | #include <ctype.h>
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| 11 | #include <stdarg.h>
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[9] | 12 | #include <string.h>
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[6] | 13 |
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| 14 | #ifdef _WIN32
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[7] | 15 | # include <io.h>
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[6] | 16 | #else
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| 17 | # include <unistd.h>
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| 18 | #endif
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| 19 |
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| 20 | #define IS_READABLE_CHAR(__c) (' ' <= __c && __c <= '~')
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| 21 |
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| 22 | #define CHECK_INVALID_CTX(__ctx) \
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| 23 | if (__ctx == NULL) \
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| 24 | return CF_ERROR_DEBUG_INVALID_CTX
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[10] | 25 |
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[6] | 26 | #define GET_CTX_OSTREAM(__ctx) \
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| 27 | ((((CF_DEBUG_CTX *)__ctx)->fp == NULL) \
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| 28 | ? stderr \
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| 29 | : ((CF_DEBUG_CTX *)__ctx)->fp)
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| 30 |
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| 31 | typedef struct __cf_debug_callstack__
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| 32 | {
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[9] | 33 | char file[NAME_LENGTH + 1];
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[6] | 34 | char func[NAME_LENGTH + 1];
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| 35 | int line;
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| 36 |
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| 37 | struct __cf_debug_callstack__ * caller;
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| 38 | } S_CF_DEBUG_CALLSTACK, CF_DEBUG_CALLSTACK;
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| 39 |
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[10] | 40 | typedef struct __cf_debug_ctx__
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[6] | 41 | {
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| 42 | char file[NAME_LENGTH + 1];
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| 43 | char func[NAME_LENGTH + 1];
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| 44 | int line;
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| 45 |
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| 46 | FILE * fp;
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| 47 |
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| 48 | CF_DEBUG_CALLSTACK callstack;
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| 49 | } S_CF_DEBUG_CTX, CF_DEBUG_CTX;
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| 50 |
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[23] | 51 | static int
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[26] | 52 | CF_Debug_Local_UpdateCtx (CF_Debug_Ctx ctx,
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| 53 | const char * file,
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| 54 | const char * func,
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| 55 | const int line)
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| 56 | {
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| 57 | CF_DEBUG_CTX * context = (CF_DEBUG_CTX *) ctx;
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| 58 |
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| 59 | CHECK_INVALID_CTX (ctx);
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| 60 |
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| 61 | strncpy (context->file, file, strlen (file));
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| 62 | strncpy (context->func, func, strlen (func));
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| 63 | context->line = line;
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| 64 |
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| 65 | return CF_OK;
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| 66 | }
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| 67 |
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| 68 | static int
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[16] | 69 | CF_Debug_Local_Print (FILE * fp,
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| 70 | const char * file,
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| 71 | const char * func,
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| 72 | const int line,
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[12] | 73 | const char * fmt,
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| 74 | va_list valist)
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[6] | 75 | {
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[16] | 76 | fprintf (fp, "[DEBUG][%s:%d][%s] ", file, line, func);
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| 77 | vfprintf (fp, fmt, valist);
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[14] | 78 |
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| 79 | return CF_OK;
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[6] | 80 | }
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| 81 |
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[23] | 82 | static int
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[16] | 83 | CF_Debug_Local_PrintBin (FILE * fp,
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| 84 | const char * file,
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| 85 | const char * func,
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| 86 | const int line,
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| 87 | const unsigned char * bin,
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| 88 | const int len)
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| 89 | {
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| 90 | int i, j;
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| 91 |
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| 92 | for (i = 0 ; i < len ; i += 16)
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| 93 | {
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| 94 | fprintf (fp, "[DEBUG][%s:%d][%s] ", file, line, func);
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| 95 | fprintf (fp, "%06x : ", i);
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| 96 |
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| 97 | for (j = 0 ; j < 16 ; j++)
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| 98 | {
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| 99 | if (i+j < len)
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| 100 | fprintf (fp, "%02x ", bin[i+j]);
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| 101 | else
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| 102 | fprintf (fp, " ");
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| 103 | }
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| 104 | fprintf (fp, " ");
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| 105 |
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| 106 | for (j = 0 ; j < 16 ; j++)
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| 107 | {
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| 108 | if (i+j < len)
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| 109 | fprintf (fp, "%c", IS_READABLE_CHAR(bin[i+j]) ? bin[i+j] : '.');
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| 110 | }
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| 111 | fprintf (fp, "\n");
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| 112 | }
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| 113 |
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| 114 | return CF_OK;
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| 115 | }
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| 116 |
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[6] | 117 | CF_Debug_Ctx
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| 118 | CF_Debug_CreateCtx (void)
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| 119 | {
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| 120 | CF_DEBUG_CTX * ctx = NULL;
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| 121 |
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| 122 | ctx = (CF_DEBUG_CTX *) calloc (sizeof (CF_DEBUG_CTX), 1);
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| 123 |
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| 124 | return (CF_Debug_Ctx) ctx;
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| 125 | }
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| 126 |
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| 127 | int
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| 128 | CF_Debug_DestroyCtx (CF_Debug_Ctx ctx)
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| 129 | {
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| 130 | CF_DEBUG_CTX * context = (CF_DEBUG_CTX *) ctx;
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| 131 | CF_DEBUG_CALLSTACK * pop = NULL;
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| 132 | CF_DEBUG_CALLSTACK * next = NULL;
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| 133 |
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| 134 | CHECK_INVALID_CTX (ctx);
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| 135 |
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| 136 | if (context->fp != NULL)
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| 137 | fclose (context->fp);
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| 138 |
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| 139 | for (pop = next = context->callstack.caller ; pop ; pop = next)
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| 140 | {
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| 141 | next = next->caller;
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| 142 | free (pop);
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| 143 | }
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| 144 |
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| 145 | free (context);
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| 146 |
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| 147 | return CF_OK;
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| 148 | }
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| 149 |
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| 150 | int
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| 151 | CF_Debug_SetOutputFD (CF_Debug_Ctx ctx,
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| 152 | int fd)
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| 153 | {
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| 154 | int result = 0;
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| 155 | int dupfd = 0;
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| 156 |
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| 157 | CF_DEBUG_CTX * context = (CF_DEBUG_CTX *) ctx;
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| 158 | FILE * fp = NULL;
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| 159 |
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| 160 | CHECK_INVALID_CTX (ctx);
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| 161 |
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| 162 | TRY
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| 163 | {
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| 164 | dupfd = dup (fd);
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| 165 | if (dupfd < 0)
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| 166 | {
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| 167 | result = -1;
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| 168 | TRY_BREAK;
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| 169 | }
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| 170 |
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[34] | 171 | fp = fdopen (dupfd, "a");
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[6] | 172 | if (fp == NULL)
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| 173 | {
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| 174 | close (dupfd);
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| 175 | result = -2;
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| 176 | TRY_BREAK;
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| 177 | }
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| 178 |
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| 179 | context->fp = fp;
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| 180 | }
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| 181 | CATCH_IF (result < 0)
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| 182 | {
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| 183 | return CF_ERROR_DEBUG_SET_OUTPUT_FD;
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| 184 | }
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| 185 |
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| 186 | return CF_OK;
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| 187 | }
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| 188 |
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| 189 | int
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[16] | 190 | CF_Debug_Print (FILE * fp,
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| 191 | const char * file,
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| 192 | const char * func,
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| 193 | const int line,
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| 194 | const char * fmt, ...)
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| 195 | {
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| 196 | va_list valist;
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| 197 |
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| 198 | va_start (valist, fmt);
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| 199 | CF_Debug_Local_Print (fp, file, func, line, fmt, valist);
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| 200 | va_end (valist);
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| 201 |
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| 202 | return CF_OK;
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| 203 | }
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| 204 |
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| 205 | int
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| 206 | CF_Debug_PrintBin (FILE * fp,
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| 207 | const char * file,
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| 208 | const char * func,
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| 209 | const int line,
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| 210 | const unsigned char * bin,
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| 211 | const int len,
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| 212 | const char * fmt, ...)
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| 213 | {
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| 214 | va_list valist;
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| 215 |
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| 216 | va_start (valist, fmt);
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| 217 | CF_Debug_Local_Print (fp, file, func, line, fmt, valist);
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| 218 | va_end (valist);
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| 219 |
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| 220 | CF_Debug_Local_PrintBin (fp, file, func, line, bin, len);
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| 221 |
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| 222 | return CF_OK;
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| 223 | }
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| 224 |
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| 225 | int
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[6] | 226 | CF_Debug_Trace (CF_Debug_Ctx ctx,
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[26] | 227 | const char * file,
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| 228 | const char * func,
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| 229 | const int line,
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[6] | 230 | const char * fmt, ...)
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| 231 | {
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| 232 | va_list valist;
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[16] | 233 | CF_DEBUG_CTX * context = (CF_DEBUG_CTX *) ctx;
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[6] | 234 |
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| 235 | CHECK_INVALID_CTX (ctx);
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| 236 |
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[26] | 237 | CF_Debug_Local_UpdateCtx (ctx, file, func, line);
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| 238 |
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[6] | 239 | va_start (valist, fmt);
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[16] | 240 | CF_Debug_Local_Print (GET_CTX_OSTREAM (context),
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| 241 | context->file,
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| 242 | context->func,
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| 243 | context->line,
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| 244 | fmt, valist);
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[6] | 245 | va_end (valist);
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| 246 |
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| 247 | return CF_OK;
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| 248 | }
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| 249 |
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| 250 | int
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| 251 | CF_Debug_TraceBin (CF_Debug_Ctx ctx,
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[26] | 252 | const char * file,
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| 253 | const char * func,
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| 254 | const int line,
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[6] | 255 | const unsigned char * bin,
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| 256 | const int len,
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| 257 | const char * fmt, ...)
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| 258 | {
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[16] | 259 | va_list valist;
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| 260 | CF_DEBUG_CTX * context = (CF_DEBUG_CTX *) ctx;
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| 261 |
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[6] | 262 | CHECK_INVALID_CTX (ctx);
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| 263 |
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[26] | 264 | CF_Debug_Local_UpdateCtx (ctx, file, func, line);
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| 265 |
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[6] | 266 | va_start (valist, fmt);
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[16] | 267 | CF_Debug_Local_Print (GET_CTX_OSTREAM (context),
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| 268 | context->file,
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| 269 | context->func,
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| 270 | context->line,
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| 271 | fmt, valist);
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| 272 | va_end (valist);
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[6] | 273 |
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[18] | 274 | CF_Debug_Local_PrintBin (GET_CTX_OSTREAM (context),
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[16] | 275 | context->file,
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| 276 | context->func,
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| 277 | context->line,
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| 278 | bin, len);
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[6] | 279 |
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| 280 | return CF_OK;
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| 281 | }
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| 282 |
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| 283 | int
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| 284 | CF_Debug_CallStackPush (CF_Debug_Ctx ctx,
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[9] | 285 | const char * file,
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[6] | 286 | const char * func,
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| 287 | const int line)
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| 288 | {
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| 289 | CF_DEBUG_CTX * context = (CF_DEBUG_CTX *) ctx;
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| 290 | CF_DEBUG_CALLSTACK * push = NULL;
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| 291 |
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| 292 | CHECK_INVALID_CTX (ctx);
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| 293 |
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| 294 | push = (CF_DEBUG_CALLSTACK *) calloc (sizeof (CF_DEBUG_CALLSTACK), 1);
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| 295 | if (push == NULL)
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| 296 | return CF_ERROR_DEBUG_PUSH_CALLSTACK;
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| 297 |
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[9] | 298 | /* push to callstack */
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| 299 | sprintf (push->file, "%s", file);
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[6] | 300 | sprintf (push->func, "%s", func);
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| 301 | push->line = line;
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| 302 | push->caller = context->callstack.caller;
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| 303 | context->callstack.caller = push;
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| 304 |
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[26] | 305 | CF_Debug_Local_UpdateCtx (ctx, file, func, line);
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[9] | 306 |
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[6] | 307 | return CF_OK;
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| 308 | }
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| 309 |
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| 310 | int
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| 311 | CF_Debug_CallStackPop (CF_Debug_Ctx ctx,
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| 312 | CF_Debug_CallStack * callstack)
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| 313 | {
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| 314 | CF_DEBUG_CTX * context = (CF_DEBUG_CTX *) ctx;
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| 315 | CF_DEBUG_CALLSTACK * pop = NULL;
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| 316 |
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| 317 | CHECK_INVALID_CTX (ctx);
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| 318 |
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| 319 | pop = context->callstack.caller;
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| 320 | if (pop == NULL)
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| 321 | return CF_ERROR_DEBUG_POP_CALLSTACK;
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| 322 |
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[9] | 323 | if (callstack != NULL)
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| 324 | {
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[14] | 325 | sprintf (callstack->file , "%s", pop->file);
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[9] | 326 | sprintf (callstack->function, "%s", pop->func);
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| 327 | callstack->line = pop->line;
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| 328 | }
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[6] | 329 |
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[9] | 330 | memset (context->file, 0x00, sizeof (context->file));
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| 331 | memset (context->func, 0x00, sizeof (context->func));
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| 332 | context->line = 0;
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| 333 |
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| 334 | /* restore current context */
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| 335 | if (pop->caller != NULL)
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| 336 | {
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[26] | 337 | CF_Debug_Local_UpdateCtx (ctx,
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| 338 | pop->caller->file,
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| 339 | pop->caller->func,
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| 340 | pop->caller->line);
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[9] | 341 | }
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| 342 |
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[14] | 343 | context->callstack.caller = pop->caller;
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[6] | 344 | free (pop);
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| 345 |
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| 346 | return CF_OK;
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| 347 | }
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