ConfigFile - Changed general file descriptors to specific for …

Engravity-CDU » Code » ConfigFile

Engravity-CDU / ConfigFile

Changed general file descriptors to specific for CDU

Dependents: CDUFinal CDU_Mbed_36

Fork of ConfigFile by Shinichiro Nakamura

ConfigFile.cpp@2:d8febae84a45, 2010-09-12 (annotated)

Committer:: shintamainjp
Date:: Sun Sep 12 07:35:25 2010 +0000
Revision:: 2:d8febae84a45
Parent:: 1:f02e081afe42
Child:: 3:7250e339328c

Who changed what in which revision?

User	Revision	Line number	New contents of line
shintamainjp	0:6b4ba48753b9	1	#include "ConfigFile.h"
shintamainjp	0:6b4ba48753b9	2
shintamainjp	2:d8febae84a45	3	#define NEWLINE_UNIX "\n"
shintamainjp	2:d8febae84a45	4	#define NEWLINE_DOS "\r\n"
shintamainjp	2:d8febae84a45	5	#define NEWLINE_MAC "\r"
shintamainjp	2:d8febae84a45	6
shintamainjp	0:6b4ba48753b9	7	ConfigFile::ConfigFile() {
shintamainjp	0:6b4ba48753b9	8	/*
shintamainjp	0:6b4ba48753b9	9	* Allocation for a config_t list.
shintamainjp	0:6b4ba48753b9	10	*/
shintamainjp	0:6b4ba48753b9	11	configlist = (config_t *)malloc(sizeof(config_t ) * MAXCONFIG);
shintamainjp	0:6b4ba48753b9	12	for (int i = 0; i < MAXCONFIG; i++) {
shintamainjp	0:6b4ba48753b9	13	configlist[i] = NULL;
shintamainjp	0:6b4ba48753b9	14	}
shintamainjp	0:6b4ba48753b9	15	}
shintamainjp	0:6b4ba48753b9	16
shintamainjp	0:6b4ba48753b9	17	ConfigFile::~ConfigFile() {
shintamainjp	0:6b4ba48753b9	18	/*
shintamainjp	0:6b4ba48753b9	19	* Remove all storage and the contents.
shintamainjp	0:6b4ba48753b9	20	*/
shintamainjp	0:6b4ba48753b9	21	for (int i = 0; i < MAXCONFIG; i++) {
shintamainjp	0:6b4ba48753b9	22	config_t *cfg = configlist[i];
shintamainjp	0:6b4ba48753b9	23	if (cfg != NULL) {
shintamainjp	0:6b4ba48753b9	24	free(cfg->key);
shintamainjp	0:6b4ba48753b9	25	free(cfg->value);
shintamainjp	0:6b4ba48753b9	26	free(cfg);
shintamainjp	0:6b4ba48753b9	27	}
shintamainjp	0:6b4ba48753b9	28	configlist[i] = NULL;
shintamainjp	0:6b4ba48753b9	29	}
shintamainjp	0:6b4ba48753b9	30
shintamainjp	0:6b4ba48753b9	31	/*
shintamainjp	0:6b4ba48753b9	32	* Remove cnofig_t list.
shintamainjp	0:6b4ba48753b9	33	*/
shintamainjp	0:6b4ba48753b9	34	free(configlist);
shintamainjp	0:6b4ba48753b9	35	configlist = NULL;
shintamainjp	0:6b4ba48753b9	36	}
shintamainjp	0:6b4ba48753b9	37
shintamainjp	1:f02e081afe42	38	bool ConfigFile::getValue(char key, char value, size_t siz) {
shintamainjp	0:6b4ba48753b9	39	/*
shintamainjp	0:6b4ba48753b9	40	* Null check.
shintamainjp	0:6b4ba48753b9	41	*/
shintamainjp	0:6b4ba48753b9	42	if (key == NULL) {
shintamainjp	1:f02e081afe42	43	return false;
shintamainjp	0:6b4ba48753b9	44	}
shintamainjp	0:6b4ba48753b9	45
shintamainjp	0:6b4ba48753b9	46	/*
shintamainjp	0:6b4ba48753b9	47	* Search a config_t object from the key.
shintamainjp	0:6b4ba48753b9	48	*/
shintamainjp	0:6b4ba48753b9	49	config_t *p = search(key);
shintamainjp	0:6b4ba48753b9	50	if (p == NULL) {
shintamainjp	1:f02e081afe42	51	return false;
shintamainjp	1:f02e081afe42	52	}
shintamainjp	2:d8febae84a45	53
shintamainjp	1:f02e081afe42	54	/*
shintamainjp	1:f02e081afe42	55	* Check the storage size.
shintamainjp	1:f02e081afe42	56	*/
shintamainjp	1:f02e081afe42	57	if (siz <= strlen(p->value)) {
shintamainjp	1:f02e081afe42	58	return false;
shintamainjp	0:6b4ba48753b9	59	}
shintamainjp	0:6b4ba48753b9	60
shintamainjp	0:6b4ba48753b9	61	/*
shintamainjp	1:f02e081afe42	62	* Copy the value to the storage.
shintamainjp	0:6b4ba48753b9	63	*/
shintamainjp	1:f02e081afe42	64	strcpy(value, p->value);
shintamainjp	1:f02e081afe42	65	return true;
shintamainjp	0:6b4ba48753b9	66	}
shintamainjp	0:6b4ba48753b9	67
shintamainjp	0:6b4ba48753b9	68	bool ConfigFile::setValue(char key, char value) {
shintamainjp	0:6b4ba48753b9	69	/*
shintamainjp	0:6b4ba48753b9	70	* Null check.
shintamainjp	0:6b4ba48753b9	71	*/
shintamainjp	0:6b4ba48753b9	72	if ((key == NULL) \|\| (value == NULL)) {
shintamainjp	0:6b4ba48753b9	73	return false;
shintamainjp	0:6b4ba48753b9	74	}
shintamainjp	0:6b4ba48753b9	75
shintamainjp	0:6b4ba48753b9	76	/*
shintamainjp	0:6b4ba48753b9	77	* Size check.
shintamainjp	0:6b4ba48753b9	78	*/
shintamainjp	0:6b4ba48753b9	79	if ((MAXLEN_KEY < strlen(key)) \|\| (MAXLEN_VALUE < strlen(value))) {
shintamainjp	0:6b4ba48753b9	80	return false;
shintamainjp	0:6b4ba48753b9	81	}
shintamainjp	0:6b4ba48753b9	82
shintamainjp	0:6b4ba48753b9	83	/*
shintamainjp	0:6b4ba48753b9	84	* Search a config_t object from the key.
shintamainjp	0:6b4ba48753b9	85	*/
shintamainjp	0:6b4ba48753b9	86	config_t *p = search(key);
shintamainjp	0:6b4ba48753b9	87	if (p == NULL) {
shintamainjp	0:6b4ba48753b9	88	/*
shintamainjp	0:6b4ba48753b9	89	* Allocation a memory for a new key.
shintamainjp	0:6b4ba48753b9	90	*/
shintamainjp	0:6b4ba48753b9	91	char k = (char )malloc(sizeof(char) * (strlen(key) + 1));
shintamainjp	0:6b4ba48753b9	92	if (k == NULL) {
shintamainjp	0:6b4ba48753b9	93	return false;
shintamainjp	0:6b4ba48753b9	94	}
shintamainjp	0:6b4ba48753b9	95	strcpy(k, key);
shintamainjp	0:6b4ba48753b9	96
shintamainjp	0:6b4ba48753b9	97	/*
shintamainjp	0:6b4ba48753b9	98	* Allocation a memory for a new value.
shintamainjp	0:6b4ba48753b9	99	*/
shintamainjp	0:6b4ba48753b9	100	char v = (char )malloc(sizeof(char) * (strlen(value) + 1));
shintamainjp	0:6b4ba48753b9	101	if (v == NULL) {
shintamainjp	0:6b4ba48753b9	102	free(k);
shintamainjp	0:6b4ba48753b9	103	return false;
shintamainjp	0:6b4ba48753b9	104	}
shintamainjp	0:6b4ba48753b9	105	strcpy(v, value);
shintamainjp	0:6b4ba48753b9	106
shintamainjp	0:6b4ba48753b9	107	/*
shintamainjp	0:6b4ba48753b9	108	* Allocation a memory for a new configuration.
shintamainjp	0:6b4ba48753b9	109	*/
shintamainjp	0:6b4ba48753b9	110	config_t cfg = (config_t )malloc(sizeof(config_t) * 1);
shintamainjp	0:6b4ba48753b9	111	if (cfg == NULL) {
shintamainjp	0:6b4ba48753b9	112	free(k);
shintamainjp	0:6b4ba48753b9	113	free(v);
shintamainjp	0:6b4ba48753b9	114	return false;
shintamainjp	0:6b4ba48753b9	115	}
shintamainjp	0:6b4ba48753b9	116	cfg->key = k;
shintamainjp	0:6b4ba48753b9	117	cfg->value = v;
shintamainjp	0:6b4ba48753b9	118
shintamainjp	0:6b4ba48753b9	119	/*
shintamainjp	0:6b4ba48753b9	120	* Add the new configuration.
shintamainjp	0:6b4ba48753b9	121	*/
shintamainjp	0:6b4ba48753b9	122	if (!add(cfg)) {
shintamainjp	0:6b4ba48753b9	123	free(k);
shintamainjp	0:6b4ba48753b9	124	free(v);
shintamainjp	0:6b4ba48753b9	125	free(cfg);
shintamainjp	0:6b4ba48753b9	126	return false;
shintamainjp	0:6b4ba48753b9	127	}
shintamainjp	0:6b4ba48753b9	128
shintamainjp	0:6b4ba48753b9	129	return true;
shintamainjp	0:6b4ba48753b9	130	} else {
shintamainjp	0:6b4ba48753b9	131	/*
shintamainjp	0:6b4ba48753b9	132	* The value is same.
shintamainjp	0:6b4ba48753b9	133	*/
shintamainjp	0:6b4ba48753b9	134	if (strcmp(value, p->value) == 0) {
shintamainjp	0:6b4ba48753b9	135	return true;
shintamainjp	0:6b4ba48753b9	136	}
shintamainjp	0:6b4ba48753b9	137
shintamainjp	0:6b4ba48753b9	138	/*
shintamainjp	0:6b4ba48753b9	139	* Free a memory for the value.
shintamainjp	0:6b4ba48753b9	140	*/
shintamainjp	0:6b4ba48753b9	141	free(p->value);
shintamainjp	0:6b4ba48753b9	142	p->value = NULL;
shintamainjp	0:6b4ba48753b9	143
shintamainjp	0:6b4ba48753b9	144	/*
shintamainjp	0:6b4ba48753b9	145	* Allocation memory for the new value.
shintamainjp	0:6b4ba48753b9	146	*/
shintamainjp	0:6b4ba48753b9	147	char v = (char )malloc(sizeof(char) * (strlen(value) + 1));
shintamainjp	0:6b4ba48753b9	148	if (v == NULL) {
shintamainjp	0:6b4ba48753b9	149	return false;
shintamainjp	0:6b4ba48753b9	150	}
shintamainjp	0:6b4ba48753b9	151
shintamainjp	0:6b4ba48753b9	152	/*
shintamainjp	0:6b4ba48753b9	153	* Store it.
shintamainjp	0:6b4ba48753b9	154	*/
shintamainjp	0:6b4ba48753b9	155	strcpy(v, value);
shintamainjp	0:6b4ba48753b9	156	p->value = v;
shintamainjp	0:6b4ba48753b9	157
shintamainjp	0:6b4ba48753b9	158	return true;
shintamainjp	0:6b4ba48753b9	159	}
shintamainjp	0:6b4ba48753b9	160	}
shintamainjp	0:6b4ba48753b9	161
shintamainjp	0:6b4ba48753b9	162	bool ConfigFile::remove(char *key) {
shintamainjp	0:6b4ba48753b9	163	if (key == NULL) {
shintamainjp	0:6b4ba48753b9	164	return false;
shintamainjp	0:6b4ba48753b9	165	}
shintamainjp	0:6b4ba48753b9	166	for (int i = 0; i < MAXCONFIG; i++) {
shintamainjp	0:6b4ba48753b9	167	config_t *cfg = configlist[i];
shintamainjp	0:6b4ba48753b9	168	if (cfg != NULL) {
shintamainjp	0:6b4ba48753b9	169	if (strcmp(cfg->key, key) == 0) {
shintamainjp	0:6b4ba48753b9	170	free(cfg->key);
shintamainjp	0:6b4ba48753b9	171	free(cfg->value);
shintamainjp	0:6b4ba48753b9	172	free(cfg);
shintamainjp	0:6b4ba48753b9	173	configlist[i] = NULL;
shintamainjp	0:6b4ba48753b9	174	return true;
shintamainjp	0:6b4ba48753b9	175	}
shintamainjp	0:6b4ba48753b9	176	}
shintamainjp	0:6b4ba48753b9	177	}
shintamainjp	0:6b4ba48753b9	178	return false;
shintamainjp	0:6b4ba48753b9	179	}
shintamainjp	0:6b4ba48753b9	180
shintamainjp	0:6b4ba48753b9	181	bool ConfigFile::removeAll(void) {
shintamainjp	0:6b4ba48753b9	182	for (int i = 0; i < MAXCONFIG; i++) {
shintamainjp	0:6b4ba48753b9	183	config_t *p = configlist[i];
shintamainjp	0:6b4ba48753b9	184	if (p != NULL) {
shintamainjp	0:6b4ba48753b9	185	free(p->key);
shintamainjp	0:6b4ba48753b9	186	free(p->value);
shintamainjp	0:6b4ba48753b9	187	}
shintamainjp	0:6b4ba48753b9	188	free(p);
shintamainjp	0:6b4ba48753b9	189	configlist[i] = NULL;
shintamainjp	0:6b4ba48753b9	190	}
shintamainjp	0:6b4ba48753b9	191	return true;
shintamainjp	0:6b4ba48753b9	192	}
shintamainjp	0:6b4ba48753b9	193
shintamainjp	0:6b4ba48753b9	194	bool ConfigFile::read(char *file) {
shintamainjp	0:6b4ba48753b9	195	/*
shintamainjp	0:6b4ba48753b9	196	* Open the target file.
shintamainjp	0:6b4ba48753b9	197	*/
shintamainjp	0:6b4ba48753b9	198	FILE *fp = fopen(file, "r");
shintamainjp	0:6b4ba48753b9	199	if (fp == NULL) {
shintamainjp	0:6b4ba48753b9	200	return false;
shintamainjp	0:6b4ba48753b9	201	}
shintamainjp	0:6b4ba48753b9	202
shintamainjp	0:6b4ba48753b9	203	/*
shintamainjp	0:6b4ba48753b9	204	* Remove all configuration.
shintamainjp	0:6b4ba48753b9	205	*/
shintamainjp	0:6b4ba48753b9	206	removeAll();
shintamainjp	0:6b4ba48753b9	207
shintamainjp	0:6b4ba48753b9	208	/*
shintamainjp	0:6b4ba48753b9	209	* Read from a file.
shintamainjp	0:6b4ba48753b9	210	*/
shintamainjp	0:6b4ba48753b9	211	char buf[MAXLEN_KEY + 8 + MAXLEN_VALUE];
shintamainjp	0:6b4ba48753b9	212	while (fgets(buf, sizeof(buf), fp) != NULL) {
shintamainjp	0:6b4ba48753b9	213	/*
shintamainjp	0:6b4ba48753b9	214	* Ignore a comment.
shintamainjp	0:6b4ba48753b9	215	*/
shintamainjp	0:6b4ba48753b9	216	if (buf[0] == '#') {
shintamainjp	0:6b4ba48753b9	217	continue;
shintamainjp	0:6b4ba48753b9	218	}
shintamainjp	2:d8febae84a45	219
shintamainjp	0:6b4ba48753b9	220	/*
shintamainjp	0:6b4ba48753b9	221	* Trim a return.
shintamainjp	0:6b4ba48753b9	222	*/
shintamainjp	0:6b4ba48753b9	223	const size_t len = strlen(buf);
shintamainjp	0:6b4ba48753b9	224	for (int i = 0; i < len; i++) {
shintamainjp	0:6b4ba48753b9	225	if ((buf[i] == '\r') \|\| (buf[i] == '\n')) {
shintamainjp	0:6b4ba48753b9	226	buf[i] = '\0';
shintamainjp	0:6b4ba48753b9	227	}
shintamainjp	0:6b4ba48753b9	228	}
shintamainjp	0:6b4ba48753b9	229
shintamainjp	0:6b4ba48753b9	230	/*
shintamainjp	0:6b4ba48753b9	231	* Separate key and value.
shintamainjp	2:d8febae84a45	232	*/
shintamainjp	0:6b4ba48753b9	233	char k[MAXLEN_KEY];
shintamainjp	0:6b4ba48753b9	234	char v[MAXLEN_VALUE];
shintamainjp	0:6b4ba48753b9	235	char *sp = strchr(buf, SEPARATOR);
shintamainjp	0:6b4ba48753b9	236	if (sp != NULL) {
shintamainjp	0:6b4ba48753b9	237	strcpy(v, sp + 1);
shintamainjp	0:6b4ba48753b9	238	*sp = '\0';
shintamainjp	0:6b4ba48753b9	239	strcpy(k, buf);
shintamainjp	0:6b4ba48753b9	240	setValue(k, v);
shintamainjp	0:6b4ba48753b9	241	}
shintamainjp	0:6b4ba48753b9	242	}
shintamainjp	0:6b4ba48753b9	243	fclose(fp);
shintamainjp	0:6b4ba48753b9	244	return true;
shintamainjp	0:6b4ba48753b9	245	}
shintamainjp	0:6b4ba48753b9	246
shintamainjp	2:d8febae84a45	247	bool ConfigFile::write(char *file, FileFormat ff) {
shintamainjp	2:d8febae84a45	248	/*
shintamainjp	2:d8febae84a45	249	* Open the target file.
shintamainjp	2:d8febae84a45	250	*/
shintamainjp	0:6b4ba48753b9	251	FILE *fp = fopen(file, "w");
shintamainjp	0:6b4ba48753b9	252	if (fp == NULL) {
shintamainjp	0:6b4ba48753b9	253	return false;
shintamainjp	0:6b4ba48753b9	254	}
shintamainjp	0:6b4ba48753b9	255
shintamainjp	2:d8febae84a45	256	/*
shintamainjp	2:d8febae84a45	257	* Set a type of new line.
shintamainjp	2:d8febae84a45	258	*/
shintamainjp	2:d8febae84a45	259	char *newline = NEWLINE_UNIX;
shintamainjp	2:d8febae84a45	260	switch (ff) {
shintamainjp	2:d8febae84a45	261	case UNIX:
shintamainjp	2:d8febae84a45	262	newline = NEWLINE_UNIX;
shintamainjp	2:d8febae84a45	263	break;
shintamainjp	2:d8febae84a45	264	case MAC:
shintamainjp	2:d8febae84a45	265	newline = NEWLINE_MAC;
shintamainjp	2:d8febae84a45	266	break;
shintamainjp	2:d8febae84a45	267	case DOS:
shintamainjp	2:d8febae84a45	268	newline = NEWLINE_DOS;
shintamainjp	2:d8febae84a45	269	break;
shintamainjp	2:d8febae84a45	270	default:
shintamainjp	2:d8febae84a45	271	newline = NEWLINE_UNIX;
shintamainjp	2:d8febae84a45	272	break;
shintamainjp	2:d8febae84a45	273	}
shintamainjp	2:d8febae84a45	274
shintamainjp	2:d8febae84a45	275	/*
shintamainjp	2:d8febae84a45	276	* Write the data.
shintamainjp	2:d8febae84a45	277	*/
shintamainjp	0:6b4ba48753b9	278	for (int i = 0; i < MAXCONFIG; i++) {
shintamainjp	0:6b4ba48753b9	279	config_t *cfg = configlist[i];
shintamainjp	0:6b4ba48753b9	280	if (cfg != NULL) {
shintamainjp	2:d8febae84a45	281	fprintf(fp, "%s=%s%s", cfg->key, cfg->value, newline);
shintamainjp	0:6b4ba48753b9	282	}
shintamainjp	0:6b4ba48753b9	283	}
shintamainjp	0:6b4ba48753b9	284	fclose(fp);
shintamainjp	0:6b4ba48753b9	285	return true;
shintamainjp	0:6b4ba48753b9	286	}
shintamainjp	0:6b4ba48753b9	287
shintamainjp	0:6b4ba48753b9	288	ConfigFile::config_t ConfigFile::search(char key) {
shintamainjp	0:6b4ba48753b9	289	if (key == NULL) {
shintamainjp	0:6b4ba48753b9	290	return NULL;
shintamainjp	0:6b4ba48753b9	291	}
shintamainjp	0:6b4ba48753b9	292	for (int i = 0; i < MAXCONFIG; i++) {
shintamainjp	0:6b4ba48753b9	293	if (configlist[i] != NULL) {
shintamainjp	0:6b4ba48753b9	294	if (strcmp(configlist[i]->key, key) == 0) {
shintamainjp	0:6b4ba48753b9	295	return configlist[i];
shintamainjp	0:6b4ba48753b9	296	}
shintamainjp	0:6b4ba48753b9	297	}
shintamainjp	0:6b4ba48753b9	298	}
shintamainjp	0:6b4ba48753b9	299	return NULL;
shintamainjp	0:6b4ba48753b9	300	}
shintamainjp	0:6b4ba48753b9	301
shintamainjp	0:6b4ba48753b9	302	bool ConfigFile::add(config_t *cfg) {
shintamainjp	0:6b4ba48753b9	303	for (int i = 0; i < MAXCONFIG; i++) {
shintamainjp	0:6b4ba48753b9	304	if (configlist[i] == NULL) {
shintamainjp	0:6b4ba48753b9	305	configlist[i] = cfg;
shintamainjp	0:6b4ba48753b9	306	return true;
shintamainjp	0:6b4ba48753b9	307	}
shintamainjp	0:6b4ba48753b9	308	}
shintamainjp	0:6b4ba48753b9	309	return false;
shintamainjp	0:6b4ba48753b9	310	}

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Type:	Library
Created:	01 Jul 2014
Imports:	2
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ConfigFile.cpp@2:d8febae84a45, 2010-09-12 (annotated)

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