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/* ----------------------------------------------------------------------------
libconfig - A library for processing structured configuration files
Copyright (C) 2005-2018 Mark A Lindner
This file is part of libconfig.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public License
as published by the Free Software Foundation; either version 2.1 of
the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, see
<http://www.gnu.org/licenses/>.
----------------------------------------------------------------------------
*/
#include <dirent.h>
#include <fnmatch.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <libconfig.h>
/* This example reads the configuration file 'example.cfg' and displays
* some of its contents.
*/
static const char **include_func(config_t *config,
const char *include_dir,
const char *path,
const char **error)
{
char *p;
DIR *dp;
struct dirent *dir_entry;
struct stat stat_buf;
char include_path[PATH_MAX + 1];
size_t include_path_len = 0;
char file_path[PATH_MAX + 1];
char **result = NULL;
char **result_next = result;
int result_count = 0;
int result_capacity = 0;
*include_path = 0;
if(*path != '/')
{
if(include_dir)
{
strcat(include_path, include_dir);
include_path_len += strlen(include_dir);
}
}
p = strrchr(path, '/');
if(p > path)
{
int len = p - path;
if((include_path_len > 0)
&& (*(include_path + include_path_len - 1) != '/'))
{
strcat(include_path, "/");
++include_path_len;
}
strncat(include_path, path, len);
include_path_len += len;
}
if(include_path_len == 0)
{
strcpy(include_path, ".");
include_path_len = 1;
}
dp = opendir(include_path);
if(dp)
{
while((dir_entry = readdir(dp)) != NULL)
{
snprintf(file_path, PATH_MAX, "%s/%s", include_path, dir_entry->d_name);
if(lstat(file_path, &stat_buf) != 0) continue;
if(!S_ISREG(stat_buf.st_mode)) continue;
if(fnmatch(path, file_path, FNM_PATHNAME) != 0) continue;
if(result_count == result_capacity)
{
result_capacity += 16;
result = (char **)realloc(result, (result_capacity + 1) * sizeof(char *));
result_next = result + result_count;
}
*result_next = strdup(file_path);
++result_next;
++result_count;
printf("file: %s\n", file_path);
}
closedir(dp);
}
*result_next = NULL;
return((const char **)result);
}
int main(int argc, char **argv)
{
config_t cfg;
config_init(&cfg);
config_set_include_func(&cfg, include_func);
/* Read the file. If there is an error, report it and exit. */
if(! config_read_file(&cfg, "example4.cfg"))
{
fprintf(stderr, "%s:%d - %s\n", config_error_file(&cfg),
config_error_line(&cfg), config_error_text(&cfg));
config_destroy(&cfg);
return(EXIT_FAILURE);
}
config_write(&cfg, stdout);
return(EXIT_SUCCESS);
}
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