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/*
* Copyright (c) 2014 Grzegorz Kostka (kostka.grzegorz@gmail.com)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <stdbool.h>
#include <getopt.h>
#ifdef WIN32
#include <winsock2.h>
#include <ws2tcpip.h>
#include <windows.h>
static int inet_pton(int af, const char *src, void *dst);
#else
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/types.h>
#endif
static int winsock_init(void);
static void winsock_fini(void);
/**@brief Default server addres.*/
static char *server_addr = "127.0.0.1";
/**@brief Default connection port.*/
static int connection_port = 1234;
/**@brief Call op*/
static char *op_code;
static const char *usage = " \n\
Welcome in lwext4_client. \n\
Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com) \n\
Usage: \n\
--call (-c) - call opt \n\
--port (-p) - server port \n\
--addr (-a) - server ip address \n\
\n";
static int client_connect(void)
{
int fd = 0;
struct sockaddr_in serv_addr;
if (winsock_init() < 0) {
printf("winsock_init error\n");
exit(-1);
}
memset(&serv_addr, '0', sizeof(serv_addr));
fd = socket(AF_INET, SOCK_STREAM, 0);
if (fd < 0) {
printf("socket() error: %s\n", strerror(errno));
exit(-1);
}
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(connection_port);
if (!inet_pton(AF_INET, server_addr, &serv_addr.sin_addr)) {
printf("inet_pton() error\n");
exit(-1);
}
if (connect(fd, (struct sockaddr *)&serv_addr, sizeof(serv_addr))) {
printf("connect() error: %s\n", strerror(errno));
exit(-1);
}
return fd;
}
static bool parse_opt(int argc, char **argv)
{
int option_index = 0;
int c;
static struct option long_options[] = {
{"call", required_argument, 0, 'c'},
{"port", required_argument, 0, 'p'},
{"addr", required_argument, 0, 'a'},
{"version", no_argument, 0, 'x'},
{0, 0, 0, 0}};
while (-1 != (c = getopt_long(argc, argv, "c:p:a:x", long_options,
&option_index))) {
switch (c) {
case 'a':
server_addr = optarg;
break;
case 'p':
connection_port = atoi(optarg);
break;
case 'c':
op_code = optarg;
break;
case 'x':
puts(VERSION);
exit(0);
break;
default:
printf("%s", usage);
return false;
}
}
return true;
}
int main(int argc, char *argv[])
{
int sockfd;
int n;
int rc;
char recvBuff[1024];
if (!parse_opt(argc, argv))
return -1;
sockfd = client_connect();
n = send(sockfd, op_code, strlen(op_code), 0);
if (n < 0) {
printf("\tWrite error: %s fd = %d\n", strerror(errno), sockfd);
return -1;
}
n = recv(sockfd, (void *)&rc, sizeof(rc), 0);
if (n < 0) {
printf("\tWrite error: %s fd = %d\n", strerror(errno), sockfd);
return -1;
}
printf("rc: %d %s\n", rc, strerror(rc));
if (rc)
printf("\t%s\n", op_code);
winsock_fini();
return rc;
}
static int winsock_init(void)
{
#if WIN32
int rc;
static WSADATA wsaData;
rc = WSAStartup(MAKEWORD(2, 2), &wsaData);
if (rc != 0) {
return -1;
}
#endif
return 0;
}
static void winsock_fini(void)
{
#if WIN32
WSACleanup();
#endif
}
#if WIN32
static int inet_pton(int af, const char *src, void *dst)
{
struct sockaddr_storage ss;
int size = sizeof(ss);
char src_copy[INET6_ADDRSTRLEN + 1];
ZeroMemory(&ss, sizeof(ss));
/* stupid non-const API */
strncpy(src_copy, src, INET6_ADDRSTRLEN + 1);
src_copy[INET6_ADDRSTRLEN] = 0;
if (WSAStringToAddress(src_copy, af, NULL, (struct sockaddr *)&ss,
&size) == 0) {
switch (af) {
case AF_INET:
*(struct in_addr *)dst =
((struct sockaddr_in *)&ss)->sin_addr;
return 1;
case AF_INET6:
*(struct in6_addr *)dst =
((struct sockaddr_in6 *)&ss)->sin6_addr;
return 1;
}
}
return 0;
}
#endif
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