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-rw-r--r--lib/librte_cmdline/cmdline.c240
1 files changed, 240 insertions, 0 deletions
diff --git a/lib/librte_cmdline/cmdline.c b/lib/librte_cmdline/cmdline.c
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+++ b/lib/librte_cmdline/cmdline.c
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+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
+ * 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.
+ *
+ * version: DPDK.L.1.2.3-3
+ */
+
+/*
+ * Copyright (c) 2009, Olivier MATZ <zer0@droids-corp.org>
+ * 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 the University of California, Berkeley 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 REGENTS 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 REGENTS AND 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.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <inttypes.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <termios.h>
+#include <netinet/in.h>
+
+#include <rte_string_fns.h>
+
+#include "cmdline_parse.h"
+#include "cmdline_rdline.h"
+#include "cmdline.h"
+
+static void
+cmdline_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);
+ 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");
+}
+
+static int
+cmdline_complete_buffer(struct rdline *rdl, const char *buf,
+ char *dstbuf, unsigned int dstsize,
+ int *state)
+{
+ struct cmdline *cl = rdl->opaque;
+ return cmdline_complete(cl, buf, state, dstbuf, dstsize);
+}
+
+int
+cmdline_write_char(struct rdline *rdl, char c)
+{
+ int ret = -1;
+ struct cmdline *cl = rdl->opaque;
+
+ if (cl->s_out >= 0)
+ ret = write(cl->s_out, &c, 1);
+
+ return ret;
+}
+
+
+void
+cmdline_set_prompt(struct cmdline *cl, const char *prompt)
+{
+ rte_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;
+ 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);
+ cl->rdl.opaque = cl;
+ cmdline_set_prompt(cl, prompt);
+ rdline_newline(&cl->rdl, cl->prompt);
+
+ return cl;
+}
+
+void
+cmdline_free(struct cmdline *cl)
+{
+ dprintf("called\n");
+ if (cl->s_in > 2)
+ close(cl->s_in);
+ if (cl->s_out != cl->s_in && cl->s_out > 2)
+ close(cl->s_out);
+ free(cl);
+}
+
+void
+cmdline_printf(const struct cmdline *cl, const char *fmt, ...)
+{
+ va_list ap;
+
+#ifdef _GNU_SOURCE
+ if (cl->s_out < 0)
+ return;
+ va_start(ap, fmt);
+ vdprintf(cl->s_out, fmt, ap);
+ va_end(ap);
+#else
+ int ret;
+ char *buf;
+
+ if (cl->s_out < 0)
+ return;
+
+ buf = malloc(BUFSIZ);
+ if (buf == NULL)
+ return;
+ va_start(ap, fmt);
+ ret = vsnprintf(buf, BUFSIZ, fmt, ap);
+ va_end(ap);
+ if (ret < 0)
+ return;
+ if (ret >= BUFSIZ)
+ ret = BUFSIZ - 1;
+ write(cl->s_out, buf, ret);
+ free(buf);
+#endif
+}
+
+int
+cmdline_in(struct cmdline *cl, const char *buf, int size)
+{
+ const char *history, *buffer;
+ size_t histlen, buflen;
+ int ret = 0;
+ int i, same;
+
+ for (i=0; i<size; i++) {
+ ret = rdline_char_in(&cl->rdl, buf[i]);
+
+ if (ret == RDLINE_RES_VALIDATED) {
+ buffer = rdline_get_buffer(&cl->rdl);
+ history = rdline_get_history_item(&cl->rdl, 0);
+ if (history) {
+ histlen = strnlen(history, RDLINE_BUF_SIZE);
+ same = !memcmp(buffer, history, histlen) &&
+ buffer[histlen] == '\n';
+ }
+ else
+ same = 0;
+ buflen = strnlen(buffer, RDLINE_BUF_SIZE);
+ if (buflen > 1 && !same)
+ rdline_add_history(&cl->rdl, buffer);
+ rdline_newline(&cl->rdl, cl->prompt);
+ }
+ else if (ret == RDLINE_RES_EOF)
+ return -1;
+ else if (ret == RDLINE_RES_EXITED)
+ return -1;
+ }
+ return i;
+}
+
+void
+cmdline_quit(struct cmdline *cl)
+{
+ rdline_quit(&cl->rdl);
+}
+
+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;
+ }
+}