1: /*************************************************************************
2: * (C) 2010 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
3: * by Michael Pounov <misho@openbsd-bg.org>
4: *
5: * $Author: misho $
6: * $Id: cli.c,v 1.10 2019/02/04 21:22:31 misho Exp $
7: *
8: **************************************************************************
9: The ELWIX and AITNET software is distributed under the following
10: terms:
11:
12: All of the documentation and software included in the ELWIX and AITNET
13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
14:
15: Copyright 2004 - 2019
16: by Michael Pounov <misho@elwix.org>. All rights reserved.
17:
18: Redistribution and use in source and binary forms, with or without
19: modification, are permitted provided that the following conditions
20: are met:
21: 1. Redistributions of source code must retain the above copyright
22: notice, this list of conditions and the following disclaimer.
23: 2. Redistributions in binary form must reproduce the above copyright
24: notice, this list of conditions and the following disclaimer in the
25: documentation and/or other materials provided with the distribution.
26: 3. All advertising materials mentioning features or use of this software
27: must display the following acknowledgement:
28: This product includes software developed by Michael Pounov <misho@elwix.org>
29: ELWIX - Embedded LightWeight unIX and its contributors.
30: 4. Neither the name of AITNET nor the names of its contributors
31: may be used to endorse or promote products derived from this software
32: without specific prior written permission.
33:
34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
37: ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44: SUCH DAMAGE.
45: */
46: #include "global.h"
47:
48:
49: /*
50: * cli_Cmd_Exit() - Builtin helper function for Exit from Cli
51: *
52: * @cli_buffer = CLI buffer
53: * @idx = Config level
54: * @args = Parsed arguments array
55: * return: RETCODE_EOF exit from Cli!
56: */
57: int
58: cli_Cmd_Exit(void * __restrict cli_buffer, int idx, char ** __restrict args)
59: {
60: cli_Printf(cli_buffer, "\n");
61: return RETCODE_EOF;
62: }
63:
64: /*
65: * cli_Cmd_Help() - Builtin helper function for Help screen
66: *
67: * @cli_buffer = CLI buffer
68: * @idx = Config level
69: * @args = Parsed arguments array
70: * return: RETCODE_ERR in error or RETCODE_OK
71: */
72: int
73: cli_Cmd_Help(void * __restrict cli_buffer, int idx, char ** __restrict args)
74: {
75: linebuffer_t *buf = cli_buffer;
76: struct tagCommand *cmd;
77:
78: if (!cli_buffer) {
79: cli_SetErr(EINVAL, "Invalid input parameters ...");
80: return RETCODE_ERR;
81: }
82:
83: cli_Printf(buf, "\n");
84: if (!args) {
85: SLIST_FOREACH(cmd, &buf->line_cmds, cmd_next) {
86: if (!(cmd->cmd_level & (1 << idx)))
87: continue;
88:
89: cli_Printf(buf, "%s\t\t%s\n", cmd->cmd_name, cmd->cmd_help);
90: }
91: } else {
92: if (!args[1])
93: cli_Printf(buf, "Help screen::\n");
94: else
95: if (!strncmp(args[1], "---", 3))
96: return RETCODE_OK;
97:
98: SLIST_FOREACH(cmd, &buf->line_cmds, cmd_next) {
99: if (!(cmd->cmd_level & (1 << idx)))
100: continue;
101: if (args[1] && (!(cmd->cmd_level & (1 << idx)) ||
102: strcmp(args[1], cmd->cmd_name)))
103: continue;
104:
105: cli_Printf(buf, "%s%s\t\t%s\n", args[1] ? "Syntax::\n\t" : "", cmd->cmd_name,
106: args[1] ? cmd->cmd_info: cmd->cmd_help);
107: }
108: }
109: cli_Printf(cli_buffer, "\r");
110:
111: return RETCODE_OK;
112: }
113:
114: /*
115: * cli_Cmd_Unsupported() - Builtin helper function for unsupported commands
116: *
117: * @cli_buffer = CLI buffer
118: * @idx = Config level
119: * @args = Parsed arguments array
120: * return: RETCODE_OK ok
121: */
122: int
123: cli_Cmd_Unsupported(void * __restrict cli_buffer, int idx, char ** __restrict args)
124: {
125: cli_Printf(cli_buffer, "Command %s not supported in this version ...\n", args[0]);
126: return RETCODE_OK;
127: }
128:
129: /*
130: * cli_Cmd_Config() - Builtin helper function for enter into config level from Cli
131: *
132: * @cli_buffer = CLI buffer
133: * @idx = Config level
134: * @args = Parsed arguments array
135: * return: RETCODE_ERR in error or RETCODE_OK
136: */
137: int
138: cli_Cmd_Config(void * __restrict cli_buffer, int idx, char ** __restrict args)
139: {
140: linebuffer_t *buf = cli_buffer;
141: char szPrompt[STRSIZ] = {[0 ... STRSIZ - 1] = 0};
142:
143: if (idx == sizeof idx * 8 - 1)
144: return RETCODE_ERR;
145:
146: buf->line_level++;
147: snprintf(szPrompt, sizeof szPrompt, "%s{%d}> ", buf->line_porigin, buf->line_level);
148: cli_setPrompt(buf, szPrompt);
149: cli_Printf(buf, "Enter to config level %d\n", buf->line_level);
150: return RETCODE_OK;
151: }
152:
153: /*
154: * cli_Cmd_End() - Builtin helper function for end config level from Cli
155: *
156: * @cli_buffer = CLI buffer
157: * @idx = Config level
158: * @args = Parsed arguments array
159: * return: RETCODE_EOF in level 0 or RETCODE_OK
160: */
161: int
162: cli_Cmd_End(void * __restrict cli_buffer, int idx, char ** __restrict args)
163: {
164: linebuffer_t *buf = cli_buffer;
165: char szPrompt[STRSIZ] = {[0 ... STRSIZ - 1] = 0};
166:
167: if (!idx)
168: return cli_Cmd_Exit(cli_buffer, idx, args);
169:
170: buf->line_level--;
171: snprintf(szPrompt, sizeof szPrompt, "%s{%d}> ", buf->line_porigin, buf->line_level);
172: cli_setPrompt(buf, szPrompt);
173: cli_Printf(buf, "Enter to config level %d\n", buf->line_level);
174: return RETCODE_OK;
175: }
176:
177: /*
178: * cli_Cmd_Top() - Builtin helper function for top level of Cli
179: *
180: * @cli_buffer = CLI buffer
181: * @idx = Config level
182: * @args = Parsed arguments array
183: * return: RETCODE_OK ok
184: */
185: int
186: cli_Cmd_Top(void * __restrict cli_buffer, int idx, char ** __restrict args)
187: {
188: linebuffer_t *buf = cli_buffer;
189: char szPrompt[STRSIZ] = {[0 ... STRSIZ - 1] = 0};
190:
191: buf->line_level ^= buf->line_level;
192: snprintf(szPrompt, sizeof szPrompt, "%s{%d}> ", buf->line_porigin, buf->line_level);
193: cli_setPrompt(buf, szPrompt);
194: cli_Printf(buf, "Enter to top config level %d\n", buf->line_level);
195: return RETCODE_OK;
196: }
197:
198: /*
199: * cli_Cmd_WhereAmI() - Builtin helper function for query level of Cli
200: *
201: * @cli_buffer = CLI buffer
202: * @idx = Config level
203: * @args = Parsed arguments array
204: * return: RETCODE_OK ok
205: */
206: int
207: cli_Cmd_WhereAmI(void * __restrict cli_buffer, int idx, char ** __restrict args)
208: {
209: linebuffer_t *buf = cli_buffer;
210:
211: cli_Printf(buf, "Current config level is %d\n", buf->line_level);
212: return RETCODE_OK;
213: }
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