New upstream version 18.02

[deb_dpdk.git] / lib / librte_cmdline / cmdline_parse.c

diff --git a/lib/librte_cmdline/cmdline_parse.c b/lib/librte_cmdline/cmdline_parse.c
index 3e12ee5..e88e4e1 100644 (file)
--- a/lib/librte_cmdline/cmdline_parse.c
+++ b/lib/librte_cmdline/cmdline_parse.c
@@ -1,61 +1,7 @@
-/*-
- *   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.
- */
-
-/*
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation.
  * 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>
@@ -168,6 +114,8 @@ match_inst(cmdline_parse_inst_t *inst, const char *buf,
        int n = 0;
        struct cmdline_token_hdr token_hdr;
 
+       if (resbuf != NULL)
+               memset(resbuf, 0, resbuf_size);
        /* check if we match all tokens of inst */
        while (!nb_match_token || i < nb_match_token) {
                token_p = get_token(inst, i);
@@ -263,6 +211,7 @@ cmdline_parse(struct cmdline *cl, const char * buf)
 #ifdef RTE_LIBRTE_CMDLINE_DEBUG
        char debug_buf[BUFSIZ];
 #endif
+       char *result_buf = result.buf;
 
        if (!cl || !buf)
                return CMDLINE_PARSE_BAD_ARGS;
@@ -312,16 +261,14 @@ cmdline_parse(struct cmdline *cl, const char * buf)
                debug_printf("INST %d\n", inst_num);
 
                /* fully parsed */
-               tok = match_inst(inst, buf, 0, tmp_result.buf,
-                                sizeof(tmp_result.buf));
+               tok = match_inst(inst, buf, 0, result_buf,
+                                CMDLINE_PARSE_RESULT_BUFSIZE);
 
                if (tok > 0) /* we matched at least one token */
                        err = CMDLINE_PARSE_BAD_ARGS;
 
                else if (!tok) {
                        debug_printf("INST fully parsed\n");
-                       memcpy(&result, &tmp_result,
-                              sizeof(result));
                        /* skip spaces */
                        while (isblank2(*curbuf)) {
                                curbuf++;
@@ -332,6 +279,7 @@ cmdline_parse(struct cmdline *cl, const char * buf)
                                if (!f) {
                                        memcpy(&f, &inst->f, sizeof(f));
                                        memcpy(&data, &inst->data, sizeof(data));
+                                       result_buf = tmp_result.buf;
                                }
                                else {
                                        /* more than 1 inst matches */