-/*-
- * 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>
return i;
}
+/** Retrieve either static or dynamic token at a given index. */
+static cmdline_parse_token_hdr_t *
+get_token(cmdline_parse_inst_t *inst, unsigned int index)
+{
+ cmdline_parse_token_hdr_t *token_p;
+
+ /* check presence of static tokens first */
+ if (inst->tokens[0] || !inst->f)
+ return inst->tokens[index];
+ /* generate dynamic token */
+ token_p = NULL;
+ inst->f(&token_p, NULL, &inst->tokens[index]);
+ return token_p;
+}
+
/**
* try to match the buffer with an instruction (only the first
* nb_match_token tokens if != 0). Return 0 if we match all the
*/
static int
match_inst(cmdline_parse_inst_t *inst, const char *buf,
- unsigned int nb_match_token, void *resbuf, unsigned resbuf_size,
- cmdline_parse_token_hdr_t
- *(*dyn_tokens)[CMDLINE_PARSE_DYNAMIC_TOKENS])
+ unsigned int nb_match_token, void *resbuf, unsigned resbuf_size)
{
- unsigned int token_num=0;
- cmdline_parse_token_hdr_t * token_p;
+ cmdline_parse_token_hdr_t *token_p = NULL;
unsigned int i=0;
int n = 0;
struct cmdline_token_hdr token_hdr;
- token_p = inst->tokens[token_num];
- if (!token_p && dyn_tokens && inst->f) {
- if (!(*dyn_tokens)[0])
- inst->f(&(*dyn_tokens)[0], NULL, dyn_tokens);
- token_p = (*dyn_tokens)[0];
- }
- if (token_p)
+ 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);
+ if (!token_p)
+ break;
memcpy(&token_hdr, token_p, sizeof(token_hdr));
- /* check if we match all tokens of inst */
- while (token_p && (!nb_match_token || i<nb_match_token)) {
debug_printf("TK\n");
/* skip spaces */
while (isblank2(*buf)) {
debug_printf("TK parsed (len=%d)\n", n);
i++;
buf += n;
-
- token_num ++;
- if (!inst->tokens[0]) {
- if (token_num < (CMDLINE_PARSE_DYNAMIC_TOKENS - 1)) {
- if (!(*dyn_tokens)[token_num])
- inst->f(&(*dyn_tokens)[token_num],
- NULL,
- dyn_tokens);
- token_p = (*dyn_tokens)[token_num];
- } else
- token_p = NULL;
- } else
- token_p = inst->tokens[token_num];
- if (token_p)
- memcpy(&token_hdr, token_p, sizeof(token_hdr));
}
/* does not match */
char buf[CMDLINE_PARSE_RESULT_BUFSIZE];
long double align; /* strong alignment constraint for buf */
} result, tmp_result;
- cmdline_parse_token_hdr_t *dyn_tokens[CMDLINE_PARSE_DYNAMIC_TOKENS];
void (*f)(void *, struct cmdline *, void *) = NULL;
void *data = NULL;
int comment = 0;
#ifdef RTE_LIBRTE_CMDLINE_DEBUG
char debug_buf[BUFSIZ];
#endif
+ char *result_buf = result.buf;
if (!cl || !buf)
return CMDLINE_PARSE_BAD_ARGS;
ctx = cl->ctx;
- memset(&dyn_tokens, 0, sizeof(dyn_tokens));
/*
* - look if the buffer contains at least one line
debug_printf("INST %d\n", inst_num);
/* fully parsed */
- tok = match_inst(inst, buf, 0, tmp_result.buf,
- sizeof(tmp_result.buf), &dyn_tokens);
+ 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++;
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 */
cmdline_parse_token_hdr_t *token_p;
struct cmdline_token_hdr token_hdr;
char tmpbuf[CMDLINE_BUFFER_SIZE], comp_buf[CMDLINE_BUFFER_SIZE];
- cmdline_parse_token_hdr_t *dyn_tokens[CMDLINE_PARSE_DYNAMIC_TOKENS];
unsigned int partial_tok_len;
int comp_len = -1;
int tmp_len = -1;
debug_printf("%s called\n", __func__);
memset(&token_hdr, 0, sizeof(token_hdr));
- memset(&dyn_tokens, 0, sizeof(dyn_tokens));
/* count the number of complete token to parse */
for (i=0 ; buf[i] ; i++) {
while (inst) {
/* parse the first tokens of the inst */
if (nb_token &&
- match_inst(inst, buf, nb_token, NULL, 0,
- &dyn_tokens))
+ match_inst(inst, buf, nb_token, NULL, 0))
goto next;
debug_printf("instruction match\n");
- if (!inst->tokens[0]) {
- if (nb_token <
- (CMDLINE_PARSE_DYNAMIC_TOKENS - 1)) {
- if (!dyn_tokens[nb_token])
- inst->f(&dyn_tokens[nb_token],
- NULL,
- &dyn_tokens);
- token_p = dyn_tokens[nb_token];
- } else
- token_p = NULL;
- } else
- token_p = inst->tokens[nb_token];
+ token_p = get_token(inst, nb_token);
if (token_p)
memcpy(&token_hdr, token_p, sizeof(token_hdr));
inst = ctx[inst_num];
if (nb_token &&
- match_inst(inst, buf, nb_token, NULL, 0, &dyn_tokens))
+ match_inst(inst, buf, nb_token, NULL, 0))
goto next2;
- if (!inst->tokens[0]) {
- if (nb_token < (CMDLINE_PARSE_DYNAMIC_TOKENS - 1)) {
- if (!dyn_tokens[nb_token])
- inst->f(&dyn_tokens[nb_token],
- NULL,
- &dyn_tokens);
- token_p = dyn_tokens[nb_token];
- } else
- token_p = NULL;
- } else
- token_p = inst->tokens[nb_token];
+ token_p = get_token(inst, nb_token);
if (token_p)
memcpy(&token_hdr, token_p, sizeof(token_hdr));
git.droids-corp.org / dpdk.git / blobdiff