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/*
* Copyright (c) 2021 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _WIN32
#include <unistd.h>
#endif
#include <ctype.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <hicn/ctrl/hicn-light.h>
#include <hicn/config/configuration_file.h>
#include <hicn/util/sstrncpy.h>
#include "commands.h"
#include <hicn/ctrl/parse.h>
#define BUFFERLEN 2048
static char *_trim(char *str) {
char *end;
// Trim leading space
while (isspace((unsigned char)*str)) str++;
if (*str == 0) // All spaces?
return str;
// Trim trailing space
end = str + strnlen_s(str, BUFFERLEN) - 1;
while (end > str && isspace((unsigned char)*end)) end--;
// Write new null terminator character
end[1] = '\0';
return str;
}
bool configuration_file_process(forwarder_t *forwarder, const char *filename) {
assert(forwarder);
assert(filename);
int linesRead = 0;
FILE *f = fopen(filename, "r");
if (!f) {
ERROR("Could not open configuration file %s: (%d) %s", filename, errno,
strerror(errno));
goto ERR_OPEN;
}
DEBUG("Opening configuration file %s", filename);
char buffer[BUFFERLEN];
bool success = true;
#if 0
// TODO(eloparco): We could use a fake socket since we only need the vft
hc_sock_t *s = hc_sock_create(FORWARDER_TYPE_HICNLIGHT, NULL);
if (!s) {
ERROR("Could not create socket");
goto ERR_SOCK;
}
#else
hc_sock_initialize_module(NULL);
#endif
while (success && fgets(buffer, BUFFERLEN, f) != NULL) {
linesRead++;
char *cmd = _trim(buffer);
if (strnlen_s(cmd, BUFFERLEN) <= 0) continue;
if (cmd[0] == '#') continue;
INFO("Processing command: %s", cmd);
hc_command_t command = {};
if (parse(cmd, &command) < 0) {
ERROR("Error parsing command : '%s'", cmd);
continue;
}
/* Serialize request into message */
// hc_msg_t msg;
uint8_t msg[1024];
ssize_t msg_len = hc_light_command_serialize(
command.action, command.object_type, &command.object, msg);
switch (msg_len) {
case -1:
case -2:
ERROR("Command '%s' not supported", cmd);
continue;
case -3:
ERROR("Error during command serialization '%s'", cmd);
continue;
default:
break;
}
size_t _unused;
command_process(forwarder, (uint8_t *)msg, CONNECTION_ID_UNDEFINED,
&_unused);
}
#if 0
hc_sock_free(s);
#endif
if (ferror(f)) {
ERROR("Error on input file %s line %d: (%d) %s", filename, linesRead, errno,
strerror(errno));
goto ERR_READ;
}
fclose(f);
return true;
#if 0
ERR_SOCK:
hc_sock_free(s);
#endif
ERR_READ:
fclose(f);
ERR_OPEN:
return false;
}
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