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/**
* Copyright 2021 Johannes Marbach
* SPDX-License-Identifier: GPL-3.0-or-later
*/
#include "config.h"
#include "log.h"
#include <dirent.h>
#include <stdlib.h>
#include <string.h>
/**
* Static prototypes
*/
/**
* Checks whether a string ends with a suffix
*
* @param string string to check
* @param suffix suffix to compare to
* @return true if the suffix matches at the end of the string, false otherwise
*/
static bool string_ends_with(const char *string, const char *suffix);
/**
* Static functions
*/
static bool string_ends_with(const char *string, const char *suffix) {
if (!string || !suffix || strlen(suffix) > strlen(string)) {
return false;
}
return strncmp(string + strlen(string) - strlen(suffix), suffix, strlen(suffix)) == 0;
}
/**
* Public functions
*/
int bbx_config_compare_strings(const void* a, const void* b) {
return strcmp(*(const char**)a, *(const char**)b);
}
void bbx_config_find_files(const char *path, char ***found, int *num_found) {
/* Initialise output variables */
*found = NULL;
*num_found = 0;
/* Count length of directory path */
const int path_length = strlen(path);
/* Open directory */
DIR *d = opendir(path);
if (!d) {
bbx_log(BBX_LOG_LEVEL_WARNING, "Could not read contents of folder %s", path);
return;
}
/* Loop over directory contents */
struct dirent *dir;
while ((dir = readdir(d)) != NULL) {
/* Ignore anything except for .conf files */
if (dir->d_type != DT_REG || !string_ends_with(dir->d_name, ".conf")) {
continue;
}
/* Grow output array */
char **tmp = realloc(*found, (*num_found + 1) * sizeof(char *));
if (!tmp) {
bbx_log(BBX_LOG_LEVEL_ERROR, "Could not reallocate memory for configuration file paths");
break;
}
*found = tmp;
/* Extract file name and length */
char *name = dir->d_name;
int name_length = strlen(name);
/* Allocate memory for full path */
char *found_path = malloc(path_length + name_length + 2); /* +1 for path separator and null terminator, respectively */
if (!found_path) {
bbx_log(BBX_LOG_LEVEL_ERROR, "Could not allocate memory for configuration file path");
break;
}
/* Build full path */
memcpy(found_path, path, path_length);
found_path[path_length] = '/';
memcpy(found_path + path_length + 1, dir->d_name, name_length + 1); /* +1 for path separator and null terminator, respectively */
/* Store file path */
(*found)[*num_found] = found_path;
*num_found += 1;
}
/* Close directory */
closedir(d);
}
bool bbx_config_parse_bool(const char *value, bool *result) {
if (strcmp(value, "true") == 0) {
*result = true;
return true;
}
if (strcmp(value, "false") == 0) {
*result = false;
return true;
}
return false;
}
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