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 <errno.h>
35 #include <inttypes.h>
36 #include <stdarg.h>
37 #include <stdint.h>
38 #include <stdio.h>
39 #include <string.h>
40 #include <syslog.h>
41 
42 #include <openthread/platform/logging.h>
43 #include <openthread/platform/toolchain.h>
44 
45 #include "utils/code_utils.h"
46 
47 #if (OPENTHREAD_CONFIG_LOG_OUTPUT == OPENTHREAD_CONFIG_LOG_OUTPUT_PLATFORM_DEFINED)
48 
49 static FILE *sLogFile = NULL;
50 
platformLoggingSetFileName(const char * aName)51 void platformLoggingSetFileName(const char *aName)
52 {
53     if (sLogFile != NULL)
54     {
55         fclose(sLogFile);
56     }
57 
58     sLogFile = fopen(aName, "wt");
59 
60     if (sLogFile == NULL)
61     {
62         fprintf(stderr, "Failed to open log file '%s': %s\r\n", aName, strerror(errno));
63         exit(EXIT_FAILURE);
64     }
65 }
66 
platformLoggingInit(const char * aName)67 void platformLoggingInit(const char *aName)
68 {
69     if (sLogFile == NULL)
70     {
71         openlog(aName, LOG_PID, LOG_USER);
72         setlogmask(setlogmask(0) & LOG_UPTO(LOG_NOTICE));
73     }
74     else
75     {
76         fprintf(sLogFile, "OpenThread logs\r\n");
77         fprintf(sLogFile, "- Program:  %s\r\n", aName);
78         fprintf(sLogFile, "- Platform: simulation\r\n");
79         fprintf(sLogFile, "- Node ID:  %lu\r\n", (unsigned long)gNodeId);
80         fprintf(sLogFile, "\r\n");
81     }
82 }
83 
platformLoggingDeinit(void)84 void platformLoggingDeinit(void)
85 {
86     if (sLogFile != NULL)
87     {
88         fclose(sLogFile);
89         sLogFile = NULL;
90     }
91 }
92 
otPlatLog(otLogLevel aLogLevel,otLogRegion aLogRegion,const char * aFormat,...)93 void otPlatLog(otLogLevel aLogLevel, otLogRegion aLogRegion, const char *aFormat, ...)
94 {
95     OT_UNUSED_VARIABLE(aLogLevel);
96     OT_UNUSED_VARIABLE(aLogRegion);
97 
98     va_list args;
99 
100     va_start(args, aFormat);
101 
102     if (sLogFile == NULL)
103     {
104         char logString[512];
105         int  offset;
106 
107         offset = snprintf(logString, sizeof(logString), "[%lu]", (unsigned long)gNodeId);
108 
109         vsnprintf(&logString[offset], sizeof(logString) - (uint16_t)offset, aFormat, args);
110         syslog(LOG_CRIT, "%s", logString);
111     }
112     else
113     {
114         vfprintf(sLogFile, aFormat, args);
115         fprintf(sLogFile, "\r\n");
116     }
117 
118     va_end(args);
119 }
120 
121 #else
122 
platformLoggingInit(const char * aName)123 void platformLoggingInit(const char *aName) { OT_UNUSED_VARIABLE(aName); }
platformLoggingDeinit(void)124 void platformLoggingDeinit(void) {}
125 
126 #endif // (OPENTHREAD_CONFIG_LOG_OUTPUT == OPENTHREAD_CONFIG_LOG_OUTPUT_PLATFORM_DEFINED)
127