+/*-
+ * Copyright (c) <2010>, Intel Corporation
+ * 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.
#include "cmdline_parse.h"
#include "cmdline_parse_string.h"
-struct cmdline_token_ops cmdline_token_string_ops = {
- .parse = cmdline_parse_string,
- .complete_get_nb = cmdline_complete_get_nb_string,
- .complete_get_elt = cmdline_complete_get_elt_string,
- .get_help = cmdline_get_help_string,
-};
-
#define MULTISTRING_HELP "Mul-choice STRING"
#define ANYSTRING_HELP "Any STRING"
#define FIXEDSTRING_HELP "Fixed STRING"
static unsigned int
get_token_len(const char *s)
{
- char c;
+ char c;
unsigned int i=0;
c = s[i];
- while (c!='#' && c!='\0') {
- i++;
+ while (c!='#' && c!='\0') {
+ i++;
c = s[i];
}
- return i;
+ return i;
}
static const char *
return NULL;
}
-int
-cmdline_parse_string(cmdline_parse_token_hdr_t *tk, const char *buf, void *res)
+static int
+parse_fixed_string(struct cmdline_token_string_data *sd,
+ const char *buf, unsigned token_len)
+{
+ unsigned int conf_token_len;
+ const char *str;
+
+ str = sd->str;
+ for (str = sd->str; str != NULL ; str = get_next_token(str)) {
+
+ conf_token_len = get_token_len(str);
+
+ /* if token from config is too big... */
+ if (conf_token_len >= STR_TOKEN_SIZE - 1)
+ continue;
+
+ /* compare conf token and user token */
+ if (token_len == conf_token_len &&
+ strncmp(buf, str, token_len) == 0)
+ return 0;
+ }
+
+ return -1;
+}
+
+static int
+cmdline_parse_string(cmdline_parse_token_hdr_t *tk, const char *buf, void *res,
+ unsigned ressize)
{
struct cmdline_token_string *tk2 = (struct cmdline_token_string *)tk;
struct cmdline_token_string_data *sd = &tk2->string_data;;
unsigned int token_len;
- const char *str;
- if (! *buf)
+ if (res && ressize < STR_TOKEN_SIZE)
+ return -1;
+
+ token_len = strlen(buf);
+
+ if (token_len >= (STR_TOKEN_SIZE - 1) || token_len == 0)
return -1;
- /* fixed string */
- if (sd->str) {
- str = sd->str;
- do {
- token_len = get_token_len(str);
-
- /* if token is too big... */
- if (token_len >= STR_TOKEN_SIZE - 1) {
- continue;
- }
-
- if ( strncmp(buf, str, token_len) ) {
- continue;
- }
-
- if ( !cmdline_isendoftoken(*(buf+token_len)) ) {
- continue;
- }
-
- break;
- } while ( (str = get_next_token(str)) != NULL );
-
- if (!str)
+ /* fixed string */
+ if (sd->str) {
+ if (parse_fixed_string(sd, buf, token_len) < 0)
return -1;
- }
- /* unspecified string */
- else {
- token_len=0;
- while(!cmdline_isendoftoken(buf[token_len]) &&
- token_len < (STR_TOKEN_SIZE-1))
- token_len++;
-
- /* return if token too long */
- if (token_len >= STR_TOKEN_SIZE - 1) {
- return -1;
- }
- }
-
- if (res) {
- /* we are sure that token_len is < STR_TOKEN_SIZE-1 */
- strncpy(res, buf, token_len);
- *((char *)res + token_len) = 0;
}
- return token_len;
+ /* we already checked that token_len is < STR_TOKEN_SIZE-1 */
+ if (res)
+ strcpy(res, buf);
+
+ return token_len;
}
-int cmdline_complete_get_nb_string(cmdline_parse_token_hdr_t *tk)
+static int
+cmdline_complete_string_start(cmdline_parse_token_hdr_t *tk, void **opaque)
{
struct cmdline_token_string *tk2 = (struct cmdline_token_string *)tk;
struct cmdline_token_string_data *sd = &tk2->string_data;;
- int ret=1;
const char *str;
- if (!sd->str)
- return 0;
-
str = sd->str;
- while( (str = get_next_token(str)) != NULL ) {
- ret++;
- }
- return ret;
+ *opaque = (void *)str;
+ if (str == NULL)
+ return -1; /* no completion */
+ return 0;
}
-int cmdline_complete_get_elt_string(cmdline_parse_token_hdr_t *tk, int idx,
- char *dstbuf, unsigned int size)
+static int
+cmdline_complete_string_iterate(cmdline_parse_token_hdr_t *tk, void **opaque,
+ char *dstbuf, unsigned int size)
{
- struct cmdline_token_string *tk2 = (struct cmdline_token_string *)tk;
- struct cmdline_token_string_data *sd = &tk2->string_data;;
const char *s;
unsigned int len;
- s = sd->str;
-
- while (idx-- && s)
- s = get_next_token(s);
-
- if (!s)
+ s = *opaque;
+ if (s == NULL)
return -1;
+ *opaque = (void *)get_next_token(s);
len = get_token_len(s);
if (len > size - 1)
return 0;
}
-
-int cmdline_get_help_string(cmdline_parse_token_hdr_t *tk, char *dstbuf,
- unsigned int size)
+static int
+cmdline_help_string(cmdline_parse_token_hdr_t *tk, char *dstbuf,
+ unsigned int size)
{
struct cmdline_token_string *tk2 = (struct cmdline_token_string *)tk;
struct cmdline_token_string_data *sd = &tk2->string_data;;
const char *s;
-
+
s = sd->str;
- if (s) {
- if (get_next_token(s)) {
+ if (s != NULL) {
+ if (get_next_token(s))
strncpy(dstbuf, MULTISTRING_HELP, size);
- }
- else {
+ else
strncpy(dstbuf, FIXEDSTRING_HELP, size);
- }
}
else {
strncpy(dstbuf, ANYSTRING_HELP, size);
}
-
+
dstbuf[size-1] = '\0';
return 0;
}
+
+struct cmdline_token_ops cmdline_token_string_ops = {
+ .parse = cmdline_parse_string,
+ .complete_start = cmdline_complete_string_start,
+ .complete_iterate = cmdline_complete_string_iterate,
+ .complete_end = NULL,
+ .help = cmdline_help_string,
+};
git.droids-corp.org / libcmdline.git / blobdiff