94ff339cbf
Adapt the MyNewt non-volatile configuration system to become a settings system in Zephyr. The original code was modifed in the following ways: * Renamed from config to settings * Use the zephyr FCB, FS API, and base64 subsystems * lltoa like function was added to sources as it was required but not included in Zephyr itself. * The original code was modified to use Zephyr's slist.h as single linked list implementation. * Reworked code which was using strtok_r, added function for decoding a string to a s64_t value. * Thank to the above the settings subsys doesn't require newlibc anymore. Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no> Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
90 lines
1.4 KiB
C
90 lines
1.4 KiB
C
/*
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* Copyright (c) 2018 Nordic Semiconductor ASA
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* Copyright (c) 2015 Runtime Inc
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <ctype.h>
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#include <string.h>
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#include "settings/settings.h"
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#include "settings_priv.h"
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int settings_line_parse(char *buf, char **namep, char **valp)
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{
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char *cp;
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enum {
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FIND_NAME,
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FIND_NAME_END,
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FIND_VAL,
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FIND_VAL_END
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} state = FIND_NAME;
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*valp = NULL;
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for (cp = buf; *cp != '\0'; cp++) {
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switch (state) {
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case FIND_NAME:
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if (!isspace((unsigned char)*cp)) {
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*namep = cp;
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state = FIND_NAME_END;
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}
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break;
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case FIND_NAME_END:
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if (*cp == '=') {
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*cp = '\0';
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state = FIND_VAL;
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} else if (isspace((unsigned char)*cp)) {
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*cp = '\0';
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}
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break;
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case FIND_VAL:
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if (!isspace((unsigned char)*cp)) {
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*valp = cp;
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state = FIND_VAL_END;
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}
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break;
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case FIND_VAL_END:
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if (isspace((unsigned char)*cp)) {
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*cp = '\0';
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}
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break;
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}
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}
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if (state == FIND_VAL_END || state == FIND_VAL) {
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return 0;
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} else {
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return -1;
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}
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}
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int settings_line_make(char *dst, int dlen, const char *name, const char *value)
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{
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int nlen;
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int vlen;
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int off;
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nlen = strlen(name);
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if (value) {
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vlen = strlen(value);
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} else {
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vlen = 0;
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}
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if (nlen + vlen + 2 > dlen) {
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return -1;
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}
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memcpy(dst, name, nlen);
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off = nlen;
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dst[off++] = '=';
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memcpy(dst + off, value, vlen);
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off += vlen;
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dst[off] = '\0';
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return off;
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}
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