7963fdfc3b
WARNING: This commit do not contains a fully cleaned code: - Only nfc-list have been tested - Some -commented- code is not used ATM - Some printf-as-debug remain in this commit ... but that a bit usable so... happy hacking ;-)
132 lines
3.8 KiB
C
132 lines
3.8 KiB
C
/*-
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* Copyright (C) 2012 Romuald Conty
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <dirent.h>
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#include <string.h>
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#include <regex.h>
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#include <sys/stat.h>
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#include <nfc/nfc.h>
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#include "nfc-internal.h"
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#include "log.h"
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#define LOG_CATEGORY "libnfc.config"
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#define LIBNFC_SYSCONFDIR "/etc/nfc"
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#define LIBNFC_CONFFILE LIBNFC_SYSCONFDIR"/libnfc.conf"
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#define LIBNFC_DEVICECONFDIR LIBNFC_SYSCONFDIR"/devices.d"
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bool conf_parse_file(const char* filename, void (*conf_keyvalue)(void* data, const char* key, const char* value), void* data)
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{
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FILE *f = fopen (filename, "r");
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if (!f) {
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perror ("fopen");
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return false;
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}
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char line[BUFSIZ];
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const char *str_regex = "^[[:space:]]*([[:alnum:]_]+)[[:space:]]*=[[:space:]]*(\"(.+)\"|([^[:space:]]+))[[:space:]]*$";
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regex_t preg;
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if(regcomp (&preg, str_regex, REG_EXTENDED|REG_NOTEOL) != 0) {
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printf ("regcomp error\n");
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return false;
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}
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size_t nmatch = preg.re_nsub + 1;
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regmatch_t *pmatch = malloc (sizeof (*pmatch) * nmatch);
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if(!pmatch) {
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perror ("malloc");
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return false;
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}
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int lineno = 0;
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while (fgets(line, BUFSIZ, f) != NULL) {
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lineno++;
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switch(line[0]) {
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case '#':
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case '\n':
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break;
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default: {
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int match;
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if ((match = regexec (&preg, line, nmatch, pmatch, 0)) == 0) {
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const size_t key_size = pmatch[1].rm_eo - pmatch[1].rm_so;
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const off_t value_pmatch = pmatch[3].rm_eo!=-1?3:4;
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const size_t value_size = pmatch[value_pmatch].rm_eo - pmatch[value_pmatch].rm_so;
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char key[key_size+1];
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char value[value_size+1];
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strncpy(key, line+(pmatch[1].rm_so), key_size); key[key_size]='\0';
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strncpy(value, line+(pmatch[value_pmatch].rm_so), value_size); value[value_size]='\0';
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conf_keyvalue(data, key, value);
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} else {
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log_put( LOG_CATEGORY, NFC_PRIORITY_TRACE, "parse error on line #%d: %s", lineno, line);
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}
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}
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break;
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}
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}
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return false;
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}
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void
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conf_keyvalue_context(void *data, const char* key, const char* value)
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{
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nfc_context *context = (nfc_context*)data;
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printf ("key: [%s], value: [%s]\n", key, value);
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if (strcmp(key, "allow_autoscan") == 0) {
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string_as_boolean(value, &(context->allow_autoscan));
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} else if (strcmp(key, "allow_intrusive_scan") == 0) {
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string_as_boolean(value, &(context->allow_intrusive_scan));
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} else {
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log_put( LOG_CATEGORY, NFC_PRIORITY_INFO, "unknown key in config line: %s = %s", key, value);
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}
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}
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void
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conf_load(nfc_context *context)
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{
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conf_parse_file(LIBNFC_CONFFILE, conf_keyvalue_context, context);
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}
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/*
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int
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main(int argc, char *argv[])
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{
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DIR *d = opendir(LIBNFC_DEVICECONFDIR);
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if (!d) {
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perror ("opendir");
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} else {
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struct dirent* de;
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while (de = readdir(d)) {
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if (de->d_name[0]!='.') {
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printf ("\t%s\n", de->d_name);
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char filename[BUFSIZ] = LIBNFC_DEVICECONFDIR"/";
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strcat (filename, de->d_name);
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struct stat s;
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if (stat(filename, &s) == -1) {
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perror("stat");
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continue;
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}
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if(S_ISREG(s.st_mode)) {
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nfc_open_from_file (filename);
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}
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}
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}
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}
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}
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*/
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