Imported Upstream version 16.04

Change-Id: I77eadcd8538a9122e4773cbe55b24033dc451757
Signed-off-by: C.J. Collier <cjcollier@linuxfoundation.org>

1 files changed, 301 insertions, 0 deletions

diff --git a/lib/librte_cmdline/cmdline.c b/lib/librte_cmdline/cmdline.c
new file mode 100644
index 00000000..c405878e
--- /dev/null
+++ b/lib/librte_cmdline/cmdline.c
@@ -0,0 +1,301 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 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.
+ */
+
+/*
+ * 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 <poll.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;
+
+	if (!rdl)
+		return -1;
+
+	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)
+{
+	if (!cl || !prompt)
+		return;
+	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;
+
+	if (!ctx || !prompt)
+		return NULL;
+
+	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)
+		return;
+
+	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;
+
+	if (!cl || !fmt)
+		return;
+
+#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) {
+		free(buf);
+		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;
+
+	if (!cl || !buf)
+		return -1;
+
+	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)
+{
+	if (!cl)
+		return;
+	rdline_quit(&cl->rdl);
+}
+
+int
+cmdline_poll(struct cmdline *cl)
+{
+	struct pollfd pfd;
+	int status;
+	ssize_t read_status;
+	char c;
+
+	if (!cl)
+		return -EINVAL;
+	else if (cl->rdl.status == RDLINE_EXITED)
+		return RDLINE_EXITED;
+
+	pfd.fd = cl->s_in;
+	pfd.events = POLLIN;
+	pfd.revents = 0;
+
+	status = poll(&pfd, 1, 0);
+	if (status < 0)
+		return status;
+	else if (status > 0) {
+		c = -1;
+		read_status = read(cl->s_in, &c, 1);
+		if (read_status < 0)
+			return read_status;
+
+		status = cmdline_in(cl, &c, 1);
+		if (status < 0 && cl->rdl.status != RDLINE_EXITED)
+			return status;
+	}
+
+	return cl->rdl.status;
+}
+
+void
+cmdline_interact(struct cmdline *cl)
+{
+	char c;
+
+	if (!cl)
+		return;
+
+	c = -1;
+	while (1) {
+		if (read(cl->s_in, &c, 1) <= 0)
+			break;
+		if (cmdline_in(cl, &c, 1) < 0)
+			break;
+	}
+}