1 /*
2  *  Copyright (c) 2016, The OpenThread Authors.
3  *  All rights reserved.
4  *
5  *  Redistribution and use in source and binary forms, with or without
6  *  modification, are permitted provided that the following conditions are met:
7  *  1. Redistributions of source code must retain the above copyright
8  *     notice, this list of conditions and the following disclaimer.
9  *  2. Redistributions in binary form must reproduce the above copyright
10  *     notice, this list of conditions and the following disclaimer in the
11  *     documentation and/or other materials provided with the distribution.
12  *  3. Neither the name of the copyright holder nor the
13  *     names of its contributors may be used to endorse or promote products
14  *     derived from this software without specific prior written permission.
15  *
16  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17  *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20  *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23  *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24  *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25  *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26  *  POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #include "platform-simulation.h"
30 #include <openthread-core-config.h>
31 #include <openthread/config.h>
32 
33 #include <ctype.h>
34 #include <inttypes.h>
35 #include <stdarg.h>
36 #include <stdint.h>
37 #include <stdio.h>
38 #include <string.h>
39 #include <syslog.h>
40 
41 #include <openthread/platform/logging.h>
42 #include <openthread/platform/toolchain.h>
43 
44 #include "utils/code_utils.h"
45 
46 // Macro to append content to end of the log string.
47 
48 #define LOG_PRINTF(...)                                                                   \
49     charsWritten = snprintf(&logString[offset], sizeof(logString) - offset, __VA_ARGS__); \
50     otEXPECT_ACTION(charsWritten >= 0, logString[offset] = 0);                            \
51     offset += (unsigned int)charsWritten;                                                 \
52     otEXPECT_ACTION(offset < sizeof(logString), logString[sizeof(logString) - 1] = 0)
53 
54 #if (OPENTHREAD_CONFIG_LOG_OUTPUT == OPENTHREAD_CONFIG_LOG_OUTPUT_PLATFORM_DEFINED)
otPlatLog(otLogLevel aLogLevel,otLogRegion aLogRegion,const char * aFormat,...)55 OT_TOOL_WEAK void otPlatLog(otLogLevel aLogLevel, otLogRegion aLogRegion, const char *aFormat, ...)
56 {
57     OT_UNUSED_VARIABLE(aLogLevel);
58     OT_UNUSED_VARIABLE(aLogRegion);
59 
60     char         logString[512];
61     unsigned int offset;
62     int          charsWritten;
63     va_list      args;
64 
65     offset = 0;
66 
67     LOG_PRINTF("[%d] ", gNodeId);
68 
69     va_start(args, aFormat);
70     charsWritten = vsnprintf(&logString[offset], sizeof(logString) - offset, aFormat, args);
71     va_end(args);
72 
73     otEXPECT_ACTION(charsWritten >= 0, logString[offset] = 0);
74 
75 exit:
76     syslog(LOG_CRIT, "%s", logString);
77 }
78 
79 #endif // #if (OPENTHREAD_CONFIG_LOG_OUTPUT == OPENTHREAD_CONFIG_LOG_OUTPUT_PLATFORM_DEFINED)
80