1 /*
2  *  Copyright (c) 2021, 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/openthread-posix-config.h"
30 
31 #if !OPENTHREAD_POSIX_CONFIG_DAEMON_ENABLE
32 
33 #include <openthread/config.h>
34 #include <openthread/openthread-system.h>
35 
36 #if !(defined(HAVE_LIBEDIT) || defined(HAVE_LIBREADLINE))
37 
38 #include <stdint.h>
39 #include <stdio.h>
40 #include <string.h>
41 #include <unistd.h>
42 
43 #include <openthread/cli.h>
44 
45 #include "cli/cli_config.h"
46 #include "common/code_utils.hpp"
47 
48 #include "openthread-core-config.h"
49 #include "platform-posix.h"
50 
51 namespace {
52 constexpr char sPrompt[] = "> ";
53 
OutputCallback(void * aContext,const char * aFormat,va_list aArguments)54 int OutputCallback(void *aContext, const char *aFormat, va_list aArguments)
55 {
56     OT_UNUSED_VARIABLE(aContext);
57 
58     return vdprintf(STDOUT_FILENO, aFormat, aArguments);
59 }
60 } // namespace
61 
otAppCliInit(otInstance * aInstance)62 extern "C" void otAppCliInit(otInstance *aInstance)
63 {
64     otCliInit(aInstance, OutputCallback, nullptr);
65 }
66 
otAppCliDeinit(void)67 extern "C" void otAppCliDeinit(void)
68 {
69 }
70 
otAppCliUpdate(otSysMainloopContext * aMainloop)71 extern "C" void otAppCliUpdate(otSysMainloopContext *aMainloop)
72 {
73     FD_SET(STDIN_FILENO, &aMainloop->mReadFdSet);
74     FD_SET(STDIN_FILENO, &aMainloop->mErrorFdSet);
75 
76     if (aMainloop->mMaxFd < STDIN_FILENO)
77     {
78         aMainloop->mMaxFd = STDIN_FILENO;
79     }
80 }
81 
otAppCliProcess(const otSysMainloopContext * aMainloop)82 extern "C" void otAppCliProcess(const otSysMainloopContext *aMainloop)
83 {
84     if (FD_ISSET(STDIN_FILENO, &aMainloop->mErrorFdSet))
85     {
86         exit(OT_EXIT_FAILURE);
87     }
88 
89     if (FD_ISSET(STDIN_FILENO, &aMainloop->mReadFdSet))
90     {
91         char buffer[OPENTHREAD_CONFIG_CLI_MAX_LINE_LENGTH];
92 
93         if (fgets(buffer, sizeof(buffer), stdin) != nullptr)
94         {
95             otCliInputLine(buffer);
96             dprintf(STDOUT_FILENO, "%s", sPrompt);
97         }
98         else
99         {
100             exit(OT_EXIT_SUCCESS);
101         }
102     }
103 }
104 
105 #endif // !(defined(HAVE_LIBEDIT) || defined(HAVE_LIBREADLINE))
106 #endif // !OPENTHREAD_POSIX_CONFIG_DAEMON_ENABLE
107