2 * Copyright (c) <2010>, Intel Corporation
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
12 * - Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
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18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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30 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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32 * OF THE POSSIBILITY OF SUCH DAMAGE.
36 * Copyright (c) 2009, Olivier MATZ <zer0@droids-corp.org>
37 * All rights reserved.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions are met:
41 * * Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * * Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 * * Neither the name of the University of California, Berkeley nor the
47 * names of its contributors may be used to endorse or promote products
48 * derived from this software without specific prior written permission.
50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
51 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
52 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
53 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
54 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
55 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
56 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
57 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
58 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
59 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
70 #include <netinet/in.h>
72 #include "cmdline_parse.h"
73 #include "cmdline_rdline.h"
77 cmdline_default_valid_buffer(struct rdline *rdl, const char *buf,
78 __attribute__((unused)) unsigned int size)
80 struct cmdline *cl = rdl->opaque;
82 ret = cmdline_parse(cl->ctx, buf, cl);
83 if (ret == CMDLINE_PARSE_AMBIGUOUS)
84 cmdline_printf(cl, "Ambiguous command\n");
85 else if (ret == CMDLINE_PARSE_NOMATCH)
86 cmdline_printf(cl, "Bad arguments\n");
87 else if (ret == CMDLINE_PARSE_UNTERMINATED_QUOTE)
88 cmdline_printf(cl, "Unterminated quote\n");
92 cmdline_default_complete_buffer(struct rdline *rdl, const char *buf,
93 char *dstbuf, unsigned int dstsize)
95 struct cmdline *cl = rdl->opaque;
96 // RDLINE_RES_COMPLETE ?
97 return cmdline_complete(cl->ctx, buf, dstbuf, dstsize);
102 cmdline_default_help(struct rdline *rdl, const char *buf,
103 rdline_write_t *write_cb, void *write_arg)
105 struct cmdline *cl = rdl->opaque;
106 return cmdline_help(cl->ctx, buf, cmdline_write, write_arg);
109 /* ---- Some rdline wrappers ---- */
111 /* write a buffer, just use rdline */
113 cmdline_write(void *arg, void *buf, size_t count)
115 struct rdline *rdl = arg;
117 return rdline_write(rdl, buf, count);
119 return rdline_asyncpager_write(rdl, buf, count);
124 cmdline_set_prompt(struct cmdline *cl, const char *prompt)
126 snprintf(cl->prompt, sizeof(cl->prompt), "%s", prompt);
130 cmdline_new(cmdline_parse_ctx_t *ctx, const char *prompt, int s_in, int s_out)
134 cl = malloc(sizeof(struct cmdline));
138 /* init cmdline structure */
139 memset(cl, 0, sizeof(struct cmdline));
144 /* init embedded rdline */
145 rdline_init(&cl->rdl, s_in, s_out,
146 cmdline_default_valid_buffer,
147 cmdline_default_complete_buffer,
148 cmdline_default_help);
151 cmdline_set_prompt(cl, prompt);
152 rdline_newline(&cl->rdl, cl->prompt);
158 cmdline_free(struct cmdline *cl)
163 if (cl->s_out != cl->s_in && cl->s_out > 2)
169 cmdline_printf(const struct cmdline *cl, const char *fmt, ...)
175 ret = rdline_vprintf(&cl->rdl, fmt, ap);
181 /* Push an input buffer in the command line. Typically, this function
182 * is called by cmdline_interact() to send the input characters to the
183 * cmdline process. It can also be called by a user callback function,
184 * when a buffer is received from the input socket.
186 * The function returns the number of processed characters, or a
187 * negative value on error (EOF reached or command line exited. */
189 cmdline_in(struct cmdline *cl, const char *buf, int size)
194 for (i = 0; i < size; i++) {
195 ret = rdline_char_in(&cl->rdl, buf[i]);
197 if (ret == RDLINE_RES_VALIDATED)
198 rdline_newline(&cl->rdl, cl->prompt);
199 else if (ret == RDLINE_RES_EOF)
201 else if (ret == RDLINE_RES_EXITED)
207 /* Interrupt a running command line process */
209 cmdline_quit(struct cmdline *cl)
211 rdline_quit(&cl->rdl);
214 /* Start command line on configured file descriptor. This function
215 * loops until the user explicitelly call cmdline_quit(), or if the
216 * input fd reaches EOF. */
218 cmdline_interact(struct cmdline *cl)
224 if (read(cl->s_in, &c, 1) < 0)
226 if (cmdline_in(cl, &c, 1) < 0)