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-rw-r--r--src/conf.c494
1 files changed, 284 insertions, 210 deletions
diff --git a/src/conf.c b/src/conf.c
index cce7dbf27..d78f44760 100644
--- a/src/conf.c
+++ b/src/conf.c
@@ -19,7 +19,7 @@
#include "conf.h"
#include "utils.h"
-#include "buffer2array.h"
+#include "tokenizer.h"
#include "path.h"
#include <glib.h>
@@ -36,37 +36,90 @@
#define MAX_STRING_SIZE MPD_PATH_MAX+80
#define CONF_COMMENT '#'
-#define CONF_BLOCK_BEGIN "{"
-#define CONF_BLOCK_END "}"
-
-#define CONF_REPEATABLE_MASK 0x01
-#define CONF_BLOCK_MASK 0x02
-#define CONF_LINE_TOKEN_MAX 3
struct config_entry {
- const char *name;
- unsigned char mask;
+ const char *const name;
+ const bool repeatable;
+ const bool block;
GSList *params;
};
-static GSList *config_entries;
+static struct config_entry config_entries[] = {
+ { .name = CONF_MUSIC_DIR, false, false },
+ { .name = CONF_PLAYLIST_DIR, false, false },
+ { .name = CONF_FOLLOW_INSIDE_SYMLINKS, false, false },
+ { .name = CONF_FOLLOW_OUTSIDE_SYMLINKS, false, false },
+ { .name = CONF_DB_FILE, false, false },
+ { .name = CONF_STICKER_FILE, false, false },
+ { .name = CONF_LOG_FILE, false, false },
+ { .name = CONF_PID_FILE, false, false },
+ { .name = CONF_STATE_FILE, false, false },
+ { .name = CONF_USER, false, false },
+ { .name = CONF_GROUP, false, false },
+ { .name = CONF_BIND_TO_ADDRESS, true, false },
+ { .name = CONF_PORT, false, false },
+ { .name = CONF_LOG_LEVEL, false, false },
+ { .name = CONF_ZEROCONF_NAME, false, false },
+ { .name = CONF_ZEROCONF_ENABLED, false, false },
+ { .name = CONF_PASSWORD, true, false },
+ { .name = CONF_DEFAULT_PERMS, false, false },
+ { .name = CONF_AUDIO_OUTPUT, true, true },
+ { .name = CONF_AUDIO_OUTPUT_FORMAT, false, false },
+ { .name = CONF_MIXER_TYPE, false, false },
+ { .name = CONF_REPLAYGAIN, false, false },
+ { .name = CONF_REPLAYGAIN_PREAMP, false, false },
+ { .name = CONF_REPLAYGAIN_MISSING_PREAMP, false, false },
+ { .name = CONF_VOLUME_NORMALIZATION, false, false },
+ { .name = CONF_SAMPLERATE_CONVERTER, false, false },
+ { .name = CONF_AUDIO_BUFFER_SIZE, false, false },
+ { .name = CONF_BUFFER_BEFORE_PLAY, false, false },
+ { .name = CONF_HTTP_PROXY_HOST, false, false },
+ { .name = CONF_HTTP_PROXY_PORT, false, false },
+ { .name = CONF_HTTP_PROXY_USER, false, false },
+ { .name = CONF_HTTP_PROXY_PASSWORD, false, false },
+ { .name = CONF_CONN_TIMEOUT, false, false },
+ { .name = CONF_MAX_CONN, false, false },
+ { .name = CONF_MAX_PLAYLIST_LENGTH, false, false },
+ { .name = CONF_MAX_COMMAND_LIST_SIZE, false, false },
+ { .name = CONF_MAX_OUTPUT_BUFFER_SIZE, false, false },
+ { .name = CONF_FS_CHARSET, false, false },
+ { .name = CONF_ID3V1_ENCODING, false, false },
+ { .name = CONF_METADATA_TO_USE, false, false },
+ { .name = CONF_SAVE_ABSOLUTE_PATHS, false, false },
+ { .name = CONF_DECODER, true, true },
+ { .name = CONF_INPUT, true, true },
+ { .name = CONF_GAPLESS_MP3_PLAYBACK, false, false },
+ { .name = "filter", true, true },
+};
+
+static bool
+string_array_contains(const char *const* array, const char *value)
+{
+ for (const char *const* x = array; *x; x++)
+ if (g_ascii_strcasecmp(*x, value) == 0)
+ return true;
+
+ return false;
+}
-static int get_bool(const char *value)
+static bool
+get_bool(const char *value, bool *value_r)
{
- const char **x;
static const char *t[] = { "yes", "true", "1", NULL };
static const char *f[] = { "no", "false", "0", NULL };
- for (x = t; *x; x++) {
- if (!g_ascii_strcasecmp(*x, value))
- return 1;
+ if (string_array_contains(t, value)) {
+ *value_r = true;
+ return true;
}
- for (x = f; *x; x++) {
- if (!g_ascii_strcasecmp(*x, value))
- return 0;
+
+ if (string_array_contains(f, value)) {
+ *value_r = false;
+ return true;
}
- return CONF_BOOL_INVALID;
+
+ return false;
}
struct config_param *
@@ -83,15 +136,14 @@ config_new_param(const char *value, int line)
ret->num_block_params = 0;
ret->block_params = NULL;
+ ret->used = false;
return ret;
}
static void
-config_param_free(gpointer data, G_GNUC_UNUSED gpointer user_data)
+config_param_free(struct config_param *param)
{
- struct config_param *param = data;
-
g_free(param->value);
for (unsigned i = 0; i < param->num_block_params; i++) {
@@ -105,42 +157,19 @@ config_param_free(gpointer data, G_GNUC_UNUSED gpointer user_data)
g_free(param);
}
-static struct config_entry *
-newConfigEntry(const char *name, int repeatable, int block)
-{
- struct config_entry *ret = g_new(struct config_entry, 1);
-
- ret->name = name;
- ret->mask = 0;
- ret->params = NULL;
-
- if (repeatable)
- ret->mask |= CONF_REPEATABLE_MASK;
- if (block)
- ret->mask |= CONF_BLOCK_MASK;
-
- return ret;
-}
-
static void
-config_entry_free(gpointer data, G_GNUC_UNUSED gpointer user_data)
+config_param_free_callback(gpointer data, G_GNUC_UNUSED gpointer user_data)
{
- struct config_entry *entry = data;
-
- g_slist_foreach(entry->params, config_param_free, NULL);
- g_slist_free(entry->params);
+ struct config_param *param = data;
- g_free(entry);
+ config_param_free(param);
}
static struct config_entry *
config_entry_get(const char *name)
{
- GSList *list;
-
- for (list = config_entries; list != NULL;
- list = g_slist_next(list)) {
- struct config_entry *entry = list->data;
+ for (unsigned i = 0; i < G_N_ELEMENTS(config_entries); ++i) {
+ struct config_entry *entry = &config_entries[i];
if (strcmp(entry->name, name) == 0)
return entry;
}
@@ -148,82 +177,65 @@ config_entry_get(const char *name)
return NULL;
}
-static void registerConfigParam(const char *name, int repeatable, int block)
+void config_global_finish(void)
{
- struct config_entry *entry;
+ for (unsigned i = 0; i < G_N_ELEMENTS(config_entries); ++i) {
+ struct config_entry *entry = &config_entries[i];
- entry = config_entry_get(name);
- if (entry != NULL)
- g_error("config parameter \"%s\" already registered\n", name);
+ g_slist_foreach(entry->params,
+ config_param_free_callback, NULL);
+ g_slist_free(entry->params);
+ }
+}
- entry = newConfigEntry(name, repeatable, block);
- config_entries = g_slist_prepend(config_entries, entry);
+void config_global_init(void)
+{
}
-void config_global_finish(void)
+static void
+config_param_check(gpointer data, G_GNUC_UNUSED gpointer user_data)
{
- g_slist_foreach(config_entries, config_entry_free, NULL);
- g_slist_free(config_entries);
+ struct config_param *param = data;
+
+ if (!param->used)
+ /* this whole config_param was not queried at all -
+ the feature might be disabled at compile time?
+ Silently ignore it here. */
+ return;
+
+ for (unsigned i = 0; i < param->num_block_params; i++) {
+ struct block_param *bp = &param->block_params[i];
+
+ if (!bp->used)
+ g_warning("option '%s' on line %i was not recognized",
+ bp->name, bp->line);
+ }
}
-void config_global_init(void)
+void config_global_check(void)
{
- config_entries = NULL;
-
- /* registerConfigParam(name, repeatable, block); */
- registerConfigParam(CONF_MUSIC_DIR, 0, 0);
- registerConfigParam(CONF_PLAYLIST_DIR, 0, 0);
- registerConfigParam(CONF_FOLLOW_INSIDE_SYMLINKS, 0, 0);
- registerConfigParam(CONF_FOLLOW_OUTSIDE_SYMLINKS, 0, 0);
- registerConfigParam(CONF_DB_FILE, 0, 0);
- registerConfigParam(CONF_STICKER_FILE, false, false);
- registerConfigParam(CONF_LOG_FILE, 0, 0);
- registerConfigParam(CONF_ERROR_FILE, 0, 0);
- registerConfigParam(CONF_PID_FILE, 0, 0);
- registerConfigParam(CONF_STATE_FILE, 0, 0);
- registerConfigParam(CONF_USER, 0, 0);
- registerConfigParam(CONF_BIND_TO_ADDRESS, 1, 0);
- registerConfigParam(CONF_PORT, 0, 0);
- registerConfigParam(CONF_LOG_LEVEL, 0, 0);
- registerConfigParam(CONF_ZEROCONF_NAME, 0, 0);
- registerConfigParam(CONF_ZEROCONF_ENABLED, 0, 0);
- registerConfigParam(CONF_PASSWORD, 1, 0);
- registerConfigParam(CONF_DEFAULT_PERMS, 0, 0);
- registerConfigParam(CONF_AUDIO_OUTPUT, 1, 1);
- registerConfigParam(CONF_AUDIO_OUTPUT_FORMAT, 0, 0);
- registerConfigParam(CONF_MIXER_TYPE, 0, 0);
- registerConfigParam(CONF_MIXER_DEVICE, 0, 0);
- registerConfigParam(CONF_MIXER_CONTROL, 0, 0);
- registerConfigParam(CONF_REPLAYGAIN, 0, 0);
- registerConfigParam(CONF_REPLAYGAIN_PREAMP, 0, 0);
- registerConfigParam(CONF_VOLUME_NORMALIZATION, 0, 0);
- registerConfigParam(CONF_SAMPLERATE_CONVERTER, 0, 0);
- registerConfigParam(CONF_AUDIO_BUFFER_SIZE, 0, 0);
- registerConfigParam(CONF_BUFFER_BEFORE_PLAY, 0, 0);
- registerConfigParam(CONF_HTTP_PROXY_HOST, 0, 0);
- registerConfigParam(CONF_HTTP_PROXY_PORT, 0, 0);
- registerConfigParam(CONF_HTTP_PROXY_USER, 0, 0);
- registerConfigParam(CONF_HTTP_PROXY_PASSWORD, 0, 0);
- registerConfigParam(CONF_CONN_TIMEOUT, 0, 0);
- registerConfigParam(CONF_MAX_CONN, 0, 0);
- registerConfigParam(CONF_MAX_PLAYLIST_LENGTH, 0, 0);
- registerConfigParam(CONF_MAX_COMMAND_LIST_SIZE, 0, 0);
- registerConfigParam(CONF_MAX_OUTPUT_BUFFER_SIZE, 0, 0);
- registerConfigParam(CONF_FS_CHARSET, 0, 0);
- registerConfigParam(CONF_ID3V1_ENCODING, 0, 0);
- registerConfigParam(CONF_METADATA_TO_USE, 0, 0);
- registerConfigParam(CONF_SAVE_ABSOLUTE_PATHS, 0, 0);
- registerConfigParam(CONF_DECODER, true, true);
- registerConfigParam(CONF_INPUT, true, true);
- registerConfigParam(CONF_GAPLESS_MP3_PLAYBACK, 0, 0);
+ for (unsigned i = 0; i < G_N_ELEMENTS(config_entries); ++i) {
+ struct config_entry *entry = &config_entries[i];
+
+ g_slist_foreach(entry->params, config_param_check, NULL);
+ }
}
-void
+bool
config_add_block_param(struct config_param * param, const char *name,
- const char *value, int line)
+ const char *value, int line, GError **error_r)
{
struct block_param *bp;
+ bp = config_get_block_param(param, name);
+ if (bp != NULL) {
+ g_set_error(error_r, config_quark(), 0,
+ "\"%s\" first defined on line %i, and "
+ "redefined on line %i\n", name,
+ bp->line, line);
+ return false;
+ }
+
param->num_block_params++;
param->block_params = g_realloc(param->block_params,
@@ -235,67 +247,97 @@ config_add_block_param(struct config_param * param, const char *name,
bp->name = g_strdup(name);
bp->value = g_strdup(value);
bp->line = line;
+ bp->used = false;
+
+ return true;
}
static struct config_param *
-config_read_block(FILE *fp, int *count, char *string)
+config_read_block(FILE *fp, int *count, char *string, GError **error_r)
{
struct config_param *ret = config_new_param(NULL, *count);
-
- int i;
- int numberOfArgs;
- int argsMinusComment;
-
- while (fgets(string, MAX_STRING_SIZE, fp)) {
- char *array[CONF_LINE_TOKEN_MAX] = { NULL };
+ GError *error = NULL;
+ bool success;
+
+ while (true) {
+ char *line;
+ const char *name, *value;
+
+ line = fgets(string, MAX_STRING_SIZE, fp);
+ if (line == NULL) {
+ config_param_free(ret);
+ g_set_error(error_r, config_quark(), 0,
+ "Expected '}' before end-of-file");
+ return NULL;
+ }
(*count)++;
+ line = g_strchug(line);
+ if (*line == 0 || *line == CONF_COMMENT)
+ continue;
- numberOfArgs = buffer2array(string, array, CONF_LINE_TOKEN_MAX);
+ if (*line == '}') {
+ /* end of this block; return from the function
+ (and from this "while" loop) */
+
+ line = g_strchug(line + 1);
+ if (*line != 0 && *line != CONF_COMMENT) {
+ config_param_free(ret);
+ g_set_error(error_r, config_quark(), 0,
+ "line %i: Unknown tokens after '}'",
+ *count);
+ return false;
+ }
- for (i = 0; i < numberOfArgs; i++) {
- if (array[i][0] == CONF_COMMENT)
- break;
+ return ret;
}
- argsMinusComment = i;
+ /* parse name and value */
- if (0 == argsMinusComment) {
- continue;
+ name = tokenizer_next_word(&line, &error);
+ if (name == NULL) {
+ assert(*line != 0);
+ config_param_free(ret);
+ g_propagate_prefixed_error(error_r, error,
+ "line %i: ", *count);
+ return NULL;
}
- if (1 == argsMinusComment &&
- 0 == strcmp(array[0], CONF_BLOCK_END)) {
- break;
+ value = tokenizer_next_string(&line, &error);
+ if (value == NULL) {
+ config_param_free(ret);
+ if (*line == 0)
+ g_set_error(error_r, config_quark(), 0,
+ "line %i: Value missing", *count);
+ else
+ g_propagate_prefixed_error(error_r, error,
+ "line %i: ",
+ *count);
+ return NULL;
}
- if (2 != argsMinusComment) {
- g_error("improperly formatted config file at line %i:"
- " %s\n", *count, string);
+ if (*line != 0 && *line != CONF_COMMENT) {
+ config_param_free(ret);
+ g_set_error(error_r, config_quark(), 0,
+ "line %i: Unknown tokens after value",
+ *count);
+ return NULL;
}
- if (0 == strcmp(array[0], CONF_BLOCK_BEGIN) ||
- 0 == strcmp(array[1], CONF_BLOCK_BEGIN) ||
- 0 == strcmp(array[0], CONF_BLOCK_END) ||
- 0 == strcmp(array[1], CONF_BLOCK_END)) {
- g_error("improperly formatted config file at line %i: %s "
- "in block beginning at line %i\n",
- *count, string, ret->line);
+ success = config_add_block_param(ret, name, value, *count,
+ error_r);
+ if (!success) {
+ config_param_free(ret);
+ return false;
}
-
- config_add_block_param(ret, array[0], array[1], *count);
}
-
- return ret;
}
-void config_read_file(const char *file)
+bool
+config_read_file(const char *file, GError **error_r)
{
FILE *fp;
char string[MAX_STRING_SIZE + 1];
- int i;
- int numberOfArgs;
- int argsMinusComment;
int count = 0;
struct config_entry *entry;
struct config_param *param;
@@ -303,67 +345,110 @@ void config_read_file(const char *file)
g_debug("loading file %s", file);
if (!(fp = fopen(file, "r"))) {
- g_error("problems opening file %s for reading: %s\n",
- file, strerror(errno));
+ g_set_error(error_r, config_quark(), errno,
+ "Failed to open %s: %s",
+ file, strerror(errno));
+ return false;
}
while (fgets(string, MAX_STRING_SIZE, fp)) {
- char *array[CONF_LINE_TOKEN_MAX] = { NULL };
+ char *line;
+ const char *name, *value;
+ GError *error = NULL;
count++;
- numberOfArgs = buffer2array(string, array, CONF_LINE_TOKEN_MAX);
+ line = g_strchug(string);
+ if (*line == 0 || *line == CONF_COMMENT)
+ continue;
+
+ /* the first token in each line is the name, followed
+ by either the value or '{' */
- for (i = 0; i < numberOfArgs; i++) {
- if (array[i][0] == CONF_COMMENT)
- break;
+ name = tokenizer_next_word(&line, &error);
+ if (name == NULL) {
+ assert(*line != 0);
+ g_propagate_prefixed_error(error_r, error,
+ "line %i: ", count);
+ return false;
}
- argsMinusComment = i;
+ /* get the definition of that option, and check the
+ "repeatable" flag */
- if (0 == argsMinusComment) {
- continue;
+ entry = config_entry_get(name);
+ if (entry == NULL) {
+ g_set_error(error_r, config_quark(), 0,
+ "unrecognized parameter in config file at "
+ "line %i: %s\n", count, name);
+ return false;
}
- if (2 != argsMinusComment) {
- g_error("improperly formatted config file at line %i:"
- " %s\n", count, string);
+ if (entry->params != NULL && !entry->repeatable) {
+ param = entry->params->data;
+ g_set_error(error_r, config_quark(), 0,
+ "config parameter \"%s\" is first defined "
+ "on line %i and redefined on line %i\n",
+ name, param->line, count);
+ return false;
}
- entry = config_entry_get(array[0]);
- if (entry == NULL)
- g_error("unrecognized parameter in config file at "
- "line %i: %s\n", count, string);
+ /* now parse the block or the value */
- if (!(entry->mask & CONF_REPEATABLE_MASK) &&
- entry->params != NULL) {
- param = entry->params->data;
- g_error("config parameter \"%s\" is first defined on "
- "line %i and redefined on line %i\n",
- array[0], param->line, count);
- }
+ if (entry->block) {
+ /* it's a block, call config_read_block() */
+
+ if (*line != '{') {
+ g_set_error(error_r, config_quark(), 0,
+ "line %i: '{' expected", count);
+ return false;
+ }
- if (entry->mask & CONF_BLOCK_MASK) {
- if (0 != strcmp(array[1], CONF_BLOCK_BEGIN)) {
- g_error("improperly formatted config file at "
- "line %i: %s\n", count, string);
+ line = g_strchug(line + 1);
+ if (*line != 0 && *line != CONF_COMMENT) {
+ g_set_error(error_r, config_quark(), 0,
+ "line %i: Unknown tokens after '{'",
+ count);
+ return false;
}
- param = config_read_block(fp, &count, string);
- } else
- param = config_new_param(array[1], count);
+
+ param = config_read_block(fp, &count, string, error_r);
+ if (param == NULL)
+ return false;
+ } else {
+ /* a string value */
+
+ value = tokenizer_next_string(&line, &error);
+ if (value == NULL) {
+ if (*line == 0)
+ g_set_error(error_r, config_quark(), 0,
+ "line %i: Value missing",
+ count);
+ else {
+ g_set_error(error_r, config_quark(), 0,
+ "line %i: %s", count,
+ error->message);
+ g_error_free(error);
+ }
+
+ return false;
+ }
+
+ if (*line != 0 && *line != CONF_COMMENT) {
+ g_set_error(error_r, config_quark(), 0,
+ "line %i: Unknown tokens after value",
+ count);
+ return false;
+ }
+
+ param = config_new_param(value, count);
+ }
entry->params = g_slist_append(entry->params, param);
}
fclose(fp);
-}
-void
-config_add_param(const char *name, struct config_param *param)
-{
- struct config_entry *entry = config_entry_get(name);
- assert(entry != NULL);
-
- entry->params = g_slist_append(entry->params, param);
+ return true;
}
struct config_param *
@@ -391,7 +476,7 @@ config_get_next_param(const char *name, const struct config_param * last)
return NULL;
param = node->data;
-
+ param->used = true;
return param;
}
@@ -447,43 +532,35 @@ config_get_positive(const char *name, unsigned default_value)
struct block_param *
config_get_block_param(const struct config_param * param, const char *name)
{
- struct block_param *ret = NULL;
-
if (param == NULL)
return NULL;
for (unsigned i = 0; i < param->num_block_params; i++) {
if (0 == strcmp(name, param->block_params[i].name)) {
- if (ret) {
- g_warning("\"%s\" first defined on line %i, and "
- "redefined on line %i\n", name,
- ret->line, param->block_params[i].line);
- }
- ret = param->block_params + i;
+ struct block_param *bp = &param->block_params[i];
+ bp->used = true;
+ return bp;
}
}
- return ret;
+ return NULL;
}
bool config_get_bool(const char *name, bool default_value)
{
const struct config_param *param = config_get_param(name);
- int value;
+ bool success, value;
if (param == NULL)
return default_value;
- value = get_bool(param->value);
- if (value == CONF_BOOL_INVALID)
+ success = get_bool(param->value, &value);
+ if (!success)
g_error("%s is not a boolean value (yes, true, 1) or "
"(no, false, 0) on line %i\n",
name, param->line);
- if (value == CONF_BOOL_UNSET)
- return default_value;
-
- return !!value;
+ return value;
}
const char *
@@ -524,19 +601,16 @@ config_get_block_bool(const struct config_param *param, const char *name,
bool default_value)
{
struct block_param *bp = config_get_block_param(param, name);
- int value;
+ bool success, value;
if (bp == NULL)
return default_value;
- value = get_bool(bp->value);
- if (value == CONF_BOOL_INVALID)
+ success = get_bool(bp->value, &value);
+ if (!success)
g_error("%s is not a boolean value (yes, true, 1) or "
"(no, false, 0) on line %i\n",
name, bp->line);
- if (value == CONF_BOOL_UNSET)
- return default_value;
-
- return !!value;
+ return value;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 11:44:09 +0000