+/*-
+ * Copyright (c) <2010>, Intel Corporation
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * - Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
/*
* Copyright (c) 2009, Olivier MATZ <zer0@droids-corp.org>
* All rights reserved.
#include <stdarg.h>
#include <inttypes.h>
#include <fcntl.h>
-
-#include <sys/socket.h>
+#include <termios.h>
#include <netinet/in.h>
-#include <sys/socket.h>
-#include <sys/un.h>
#include "cmdline_parse.h"
#include "cmdline_rdline.h"
#include "cmdline.h"
-
-#define PROMPT_SUFFIX "> "
-
-
-/**********************/
-
-void
-cmdline_valid_buffer(struct rdline *rdl, const char *buf, unsigned int size)
+static void
+cmdline_default_valid_buffer(struct rdline *rdl, const char *buf,
+ __attribute__((unused)) unsigned int size)
{
struct cmdline *cl = rdl->opaque;
int ret;
- ret = cmdline_parse(cl, buf);
+ ret = cmdline_parse(cl->ctx, buf, cl);
if (ret == CMDLINE_PARSE_AMBIGUOUS)
cmdline_printf(cl, "Ambiguous command\n");
else if (ret == CMDLINE_PARSE_NOMATCH)
- cmdline_printf(cl, "Command not found\n");
- else if (ret == CMDLINE_PARSE_BAD_ARGS)
cmdline_printf(cl, "Bad arguments\n");
+ else if (ret == CMDLINE_PARSE_UNTERMINATED_QUOTE)
+ cmdline_printf(cl, "Unterminated quote\n");
}
-int
-cmdline_complete_buffer(struct rdline *rdl, const char *buf,
- char *dstbuf, unsigned int dstsize,
- int *state)
+static int
+cmdline_default_complete_buffer(struct rdline *rdl, const char *buf,
+ char *dstbuf, unsigned int dstsize)
{
struct cmdline *cl = rdl->opaque;
- return cmdline_complete(cl, buf, state, dstbuf, dstsize);
+ // RDLINE_RES_COMPLETE ?
+ return cmdline_complete(cl->ctx, buf, dstbuf, dstsize);
}
-void
-cmdline_write_char(struct rdline *rdl, char c)
+
+static int
+cmdline_default_help(struct rdline *rdl, const char *buf,
+ rdline_write_t *write_cb, void *write_arg)
{
struct cmdline *cl = rdl->opaque;
- if (cl->s_out >= 0) {
- write(cl->s_out, &c, 1);
- }
+ return cmdline_help(cl->ctx, buf, cmdline_write, write_arg);
}
+/* ---- Some rdline wrappers ---- */
+
+/* write a buffer, just use rdline */
+ssize_t
+cmdline_write(void *arg, void *buf, size_t count)
+{
+ struct rdline *rdl = arg;
+#ifdef NO_PAGER
+ return rdline_write(rdl, buf, count);
+#else
+ return rdline_asyncpager_write(rdl, buf, count);
+#endif
+}
void
cmdline_set_prompt(struct cmdline *cl, const char *prompt)
{
- snprintf(cl->prompt, sizeof(cl->prompt), prompt);
+ snprintf(cl->prompt, sizeof(cl->prompt), "%s", prompt);
}
struct cmdline *
cmdline_new(cmdline_parse_ctx_t *ctx, const char *prompt, int s_in, int s_out)
{
struct cmdline *cl;
+
cl = malloc(sizeof(struct cmdline));
if (cl == NULL)
return NULL;
+
+ /* init cmdline structure */
memset(cl, 0, sizeof(struct cmdline));
cl->s_in = s_in;
cl->s_out = s_out;
cl->ctx = ctx;
- rdline_init(&cl->rdl, cmdline_write_char,
- cmdline_valid_buffer, cmdline_complete_buffer);
+ /* init embedded rdline */
+ rdline_init(&cl->rdl, s_in, s_out,
+ cmdline_default_valid_buffer,
+ cmdline_default_complete_buffer,
+ cmdline_default_help);
+
cl->rdl.opaque = cl;
cmdline_set_prompt(cl, prompt);
rdline_newline(&cl->rdl, cl->prompt);
free(cl);
}
-void
+int
cmdline_printf(const struct cmdline *cl, const char *fmt, ...)
{
va_list ap;
- char buffer[BUFSIZ];
+ int ret;
va_start(ap, fmt);
- vsnprintf(buffer, 512, fmt, ap);
+ ret = rdline_vprintf(&cl->rdl, fmt, ap);
va_end(ap);
- if (cl->s_out >= 0) {
- write(cl->s_out, buffer, strlen(buffer));
- }
+
+ return ret;
}
+/* Push an input buffer in the command line. Typically, this function
+ * is called by cmdline_interact() to send the input characters to the
+ * cmdline process. It can also be called by a user callback function,
+ * when a buffer is received from the input socket.
+ *
+ * The function returns the number of processed characters, or a
+ * negative value on error (EOF reached or command line exited. */
int
cmdline_in(struct cmdline *cl, const char *buf, int size)
{
- const char *history, *buffer;
int ret = 0;
- int i, same;
+ int i;
- /* XXX use defines instead of hardcoded values */
- for (i=0; i<size; i++) {
+ for (i = 0; i < size; i++) {
ret = rdline_char_in(&cl->rdl, buf[i]);
- if (ret == 1) {
- buffer = rdline_get_buffer(&cl->rdl);
- history = rdline_get_history_item(&cl->rdl, 0);
- if (history) {
- same = !memcmp(buffer, history, strlen(history)) &&
- buffer[strlen(history)] == '\n';
- }
- else
- same = 0;
- if (strlen(buffer) > 1 && !same)
- rdline_add_history(&cl->rdl, buffer);
+ if (ret == RDLINE_RES_VALIDATED &&
+ cl->rdl.status == RDLINE_STOPPED)
+ break;
+
+ if (ret == RDLINE_RES_VALIDATED)
rdline_newline(&cl->rdl, cl->prompt);
- }
- else if (ret == -2)
+ else if (ret == RDLINE_RES_EOF)
+ return -1;
+ else if (ret == RDLINE_RES_EXITED)
return -1;
}
return i;
}
+
+/* Interrupt a running command line process */
+void
+cmdline_quit(struct cmdline *cl)
+{
+ rdline_quit(&cl->rdl);
+}
+
+/* Start command line on configured file descriptor. This function
+ * loops until the user explicitelly call cmdline_quit(), or if the
+ * input fd reaches EOF. */
+void
+cmdline_interact(struct cmdline *cl)
+{
+ char c;
+
+ c = -1;
+ while (1) {
+ if (read(cl->s_in, &c, 1) < 0)
+ break;
+ if (cmdline_in(cl, &c, 1) < 0)
+ break;
+ }
+}
git.droids-corp.org / libcmdline.git / blobdiff