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-rw-r--r--lib/librte_cmdline/cmdline_parse_num.c493
1 files changed, 493 insertions, 0 deletions
diff --git a/lib/librte_cmdline/cmdline_parse_num.c b/lib/librte_cmdline/cmdline_parse_num.c
new file mode 100644
index 0000000..087cf48
--- /dev/null
+++ b/lib/librte_cmdline/cmdline_parse_num.c
@@ -0,0 +1,493 @@
+/*-
+ * 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 <stdint.h>
+#include <inttypes.h>
+#include <ctype.h>
+#include <string.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <rte_string_fns.h>
+
+#include "cmdline_parse.h"
+#include "cmdline_parse_num.h"
+
+#ifdef RTE_LIBRTE_CMDLINE_DEBUG
+#define debug_printf(args...) printf(args)
+#else
+#define debug_printf(args...) do {} while(0)
+#endif
+
+struct cmdline_token_ops cmdline_token_num_ops = {
+ .parse = cmdline_parse_num,
+ .complete_get_nb = NULL,
+ .complete_get_elt = NULL,
+ .get_help = cmdline_get_help_num,
+};
+
+
+enum num_parse_state_t {
+ START,
+ DEC_NEG,
+ BIN,
+ HEX,
+ FLOAT_POS,
+ FLOAT_NEG,
+
+ ERROR,
+
+ FIRST_OK, /* not used */
+ ZERO_OK,
+ HEX_OK,
+ OCTAL_OK,
+ BIN_OK,
+ DEC_NEG_OK,
+ DEC_POS_OK,
+ FLOAT_POS_OK,
+ FLOAT_NEG_OK
+};
+
+/* Keep it sync with enum in .h */
+static const char * num_help[] = {
+ "UINT8", "UINT16", "UINT32", "UINT64",
+ "INT8", "INT16", "INT32", "INT64",
+#ifdef CMDLINE_HAVE_FLOAT
+ "FLOAT",
+#endif
+};
+
+static inline int
+add_to_res(unsigned int c, uint64_t *res, unsigned int base)
+{
+ /* overflow */
+ if ( (UINT64_MAX - c) / base < *res ) {
+ return -1;
+ }
+
+ *res = (uint64_t) (*res * base + c);
+ return 0;
+}
+
+
+/* parse an int or a float */
+int
+cmdline_parse_num(cmdline_parse_token_hdr_t *tk, const char *srcbuf, void *res)
+{
+ struct cmdline_token_num_data nd;
+ enum num_parse_state_t st = START;
+ const char * buf = srcbuf;
+ char c = *buf;
+ uint64_t res1 = 0;
+#ifdef CMDLINE_HAVE_FLOAT
+ uint64_t res2 = 0, res3 = 1;
+#endif
+
+ memcpy(&nd, &((struct cmdline_token_num *)tk)->num_data, sizeof(nd));
+
+ while ( st != ERROR && c && ! cmdline_isendoftoken(c) ) {
+ debug_printf("%c %x -> ", c, c);
+ switch (st) {
+ case START:
+ if (c == '-') {
+ st = DEC_NEG;
+ }
+ else if (c == '0') {
+ st = ZERO_OK;
+ }
+#ifdef CMDLINE_HAVE_FLOAT
+ else if (c == '.') {
+ st = FLOAT_POS;
+ res1 = 0;
+ }
+#endif
+ else if (c >= '1' && c <= '9') {
+ if (add_to_res(c - '0', &res1, 10) < 0)
+ st = ERROR;
+ else
+ st = DEC_POS_OK;
+ }
+ else {
+ st = ERROR;
+ }
+ break;
+
+ case ZERO_OK:
+ if (c == 'x') {
+ st = HEX;
+ }
+ else if (c == 'b') {
+ st = BIN;
+ }
+#ifdef CMDLINE_HAVE_FLOAT
+ else if (c == '.') {
+ st = FLOAT_POS;
+ res1 = 0;
+ }
+#endif
+ else if (c >= '0' && c <= '7') {
+ if (add_to_res(c - '0', &res1, 10) < 0)
+ st = ERROR;
+ else
+ st = OCTAL_OK;
+ }
+ else {
+ st = ERROR;
+ }
+ break;
+
+ case DEC_NEG:
+ if (c >= '0' && c <= '9') {
+ if (add_to_res(c - '0', &res1, 10) < 0)
+ st = ERROR;
+ else
+ st = DEC_NEG_OK;
+ }
+#ifdef CMDLINE_HAVE_FLOAT
+ else if (c == '.') {
+ res1 = 0;
+ st = FLOAT_NEG;
+ }
+#endif
+ else {
+ st = ERROR;
+ }
+ break;
+
+ case DEC_NEG_OK:
+ if (c >= '0' && c <= '9') {
+ if (add_to_res(c - '0', &res1, 10) < 0)
+ st = ERROR;
+ }
+#ifdef CMDLINE_HAVE_FLOAT
+ else if (c == '.') {
+ st = FLOAT_NEG;
+ }
+#endif
+ else {
+ st = ERROR;
+ }
+ break;
+
+ case DEC_POS_OK:
+ if (c >= '0' && c <= '9') {
+ if (add_to_res(c - '0', &res1, 10) < 0)
+ st = ERROR;
+ }
+#ifdef CMDLINE_HAVE_FLOAT
+ else if (c == '.') {
+ st = FLOAT_POS;
+ }
+#endif
+ else {
+ st = ERROR;
+ }
+ break;
+
+ case HEX:
+ st = HEX_OK;
+ /* no break */
+ case HEX_OK:
+ if (c >= '0' && c <= '9') {
+ if (add_to_res(c - '0', &res1, 16) < 0)
+ st = ERROR;
+ }
+ else if (c >= 'a' && c <= 'f') {
+ if (add_to_res(c - 'a' + 10, &res1, 16) < 0)
+ st = ERROR;
+ }
+ else if (c >= 'A' && c <= 'F') {
+ if (add_to_res(c - 'A' + 10, &res1, 16) < 0)
+ st = ERROR;
+ }
+ else {
+ st = ERROR;
+ }
+ break;
+
+
+ case OCTAL_OK:
+ if (c >= '0' && c <= '7') {
+ if (add_to_res(c - '0', &res1, 8) < 0)
+ st = ERROR;
+ }
+ else {
+ st = ERROR;
+ }
+ break;
+
+ case BIN:
+ st = BIN_OK;
+ /* no break */
+ case BIN_OK:
+ if (c >= '0' && c <= '1') {
+ if (add_to_res(c - '0', &res1, 2) < 0)
+ st = ERROR;
+ }
+ else {
+ st = ERROR;
+ }
+ break;
+
+#ifdef CMDLINE_HAVE_FLOAT
+ case FLOAT_POS:
+ if (c >= '0' && c <= '9') {
+ if (add_to_res(c - '0', &res2, 10) < 0)
+ st = ERROR;
+ else
+ st = FLOAT_POS_OK;
+ res3 = 10;
+ }
+ else {
+ st = ERROR;
+ }
+ break;
+
+ case FLOAT_NEG:
+ if (c >= '0' && c <= '9') {
+ if (add_to_res(c - '0', &res2, 10) < 0)
+ st = ERROR;
+ else
+ st = FLOAT_NEG_OK;
+ res3 = 10;
+ }
+ else {
+ st = ERROR;
+ }
+ break;
+
+ case FLOAT_POS_OK:
+ if (c >= '0' && c <= '9') {
+ if (add_to_res(c - '0', &res2, 10) < 0)
+ st = ERROR;
+ if (add_to_res(0, &res3, 10) < 0)
+ st = ERROR;
+ }
+ else {
+ st = ERROR;
+ }
+ break;
+
+ case FLOAT_NEG_OK:
+ if (c >= '0' && c <= '9') {
+ if (add_to_res(c - '0', &res2, 10) < 0)
+ st = ERROR;
+ if (add_to_res(0, &res3, 10) < 0)
+ st = ERROR;
+ }
+ else {
+ st = ERROR;
+ }
+ break;
+#endif
+
+ default:
+ debug_printf("not impl ");
+
+ }
+
+#ifdef CMDLINE_HAVE_FLOAT
+ debug_printf("(%"PRIu32") (%"PRIu32") (%"PRIu32")\n",
+ res1, res2, res3);
+#else
+ debug_printf("(%"PRIu32")\n", res1);
+#endif
+
+ buf ++;
+ c = *buf;
+
+ /* token too long */
+ if (buf-srcbuf > 127)
+ return -1;
+ }
+
+ switch (st) {
+ case ZERO_OK:
+ case DEC_POS_OK:
+ case HEX_OK:
+ case OCTAL_OK:
+ case BIN_OK:
+ if ( nd.type == INT8 && res1 <= INT8_MAX ) {
+ if (res)
+ *(int8_t *)res = (int8_t) res1;
+ return (buf-srcbuf);
+ }
+ else if ( nd.type == INT16 && res1 <= INT16_MAX ) {
+ if (res)
+ *(int16_t *)res = (int16_t) res1;
+ return (buf-srcbuf);
+ }
+ else if ( nd.type == INT32 && res1 <= INT32_MAX ) {
+ if (res)
+ *(int32_t *)res = (int32_t) res1;
+ return (buf-srcbuf);
+ }
+ else if ( nd.type == UINT8 && res1 <= UINT8_MAX ) {
+ if (res)
+ *(uint8_t *)res = (uint8_t) res1;
+ return (buf-srcbuf);
+ }
+ else if (nd.type == UINT16 && res1 <= UINT16_MAX ) {
+ if (res)
+ *(uint16_t *)res = (uint16_t) res1;
+ return (buf-srcbuf);
+ }
+ else if ( nd.type == UINT32 ) {
+ if (res)
+ *(uint32_t *)res = (uint32_t) res1;
+ return (buf-srcbuf);
+ }
+ else if ( nd.type == UINT64 ) {
+ if (res)
+ *(uint64_t *)res = res1;
+ return (buf-srcbuf);
+ }
+#ifdef CMDLINE_HAVE_FLOAT
+ else if ( nd.type == FLOAT ) {
+ if (res)
+ *(float *)res = (float)res1;
+ return (buf-srcbuf);
+ }
+#endif
+ else {
+ return -1;
+ }
+ break;
+
+ case DEC_NEG_OK:
+ if ( nd.type == INT8 && res1 <= INT8_MAX + 1 ) {
+ if (res)
+ *(int8_t *)res = (int8_t) (-res1);
+ return (buf-srcbuf);
+ }
+ else if ( nd.type == INT16 && res1 <= (uint16_t)INT16_MAX + 1 ) {
+ if (res)
+ *(int16_t *)res = (int16_t) (-res1);
+ return (buf-srcbuf);
+ }
+ else if ( nd.type == INT32 && res1 <= (uint32_t)INT32_MAX + 1 ) {
+ if (res)
+ *(int32_t *)res = (int32_t) (-res1);
+ return (buf-srcbuf);
+ }
+#ifdef CMDLINE_HAVE_FLOAT
+ else if ( nd.type == FLOAT ) {
+ if (res)
+ *(float *)res = - (float)res1;
+ return (buf-srcbuf);
+ }
+#endif
+ else {
+ return -1;
+ }
+ break;
+
+#ifdef CMDLINE_HAVE_FLOAT
+ case FLOAT_POS:
+ case FLOAT_POS_OK:
+ if ( nd.type == FLOAT ) {
+ if (res)
+ *(float *)res = (float)res1 + ((float)res2 / (float)res3);
+ return (buf-srcbuf);
+
+ }
+ else {
+ return -1;
+ }
+ break;
+
+ case FLOAT_NEG:
+ case FLOAT_NEG_OK:
+ if ( nd.type == FLOAT ) {
+ if (res)
+ *(float *)res = - ((float)res1 + ((float)res2 / (float)res3));
+ return (buf-srcbuf);
+
+ }
+ else {
+ return -1;
+ }
+ break;
+#endif
+ default:
+ debug_printf("error\n");
+ return -1;
+ }
+}
+
+
+/* parse an int or a float */
+int
+cmdline_get_help_num(cmdline_parse_token_hdr_t *tk, char *dstbuf, unsigned int size)
+{
+ struct cmdline_token_num_data nd;
+
+ memcpy(&nd, &((struct cmdline_token_num *)tk)->num_data, sizeof(nd));
+
+ /* should not happen.... don't so this test */
+ /* if (nd.type >= (sizeof(num_help)/sizeof(const char *))) */
+ /* return -1; */
+
+ rte_snprintf(dstbuf, size, "%s", num_help[nd.type]);
+ dstbuf[size-1] = '\0';
+ return 0;
+}