add
This commit is contained in:
seoamugae committed
1 parent
5543c078a4
commit
0ce025f948
128 files changed
+153659
-1
No files matched your search
@@ -0,0 +1,327 @@
|
||||
/* 서울기술교육센터 AIoT */
|
||||
/* author : KSH */
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <unistd.h>
|
||||
#include <string.h>
|
||||
#include <arpa/inet.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/socket.h>
|
||||
#include <netinet/in.h>
|
||||
#include <pthread.h>
|
||||
#include <sys/stat.h>
|
||||
#include <fcntl.h>
|
||||
#include <dirent.h>
|
||||
#include <sys/time.h>
|
||||
#include <time.h>
|
||||
#include <errno.h>
|
||||
|
||||
#define BUF_SIZE 512
|
||||
#define MAX_CLNT 32
|
||||
#define ID_SIZE 512
|
||||
#define ARR_CNT 5
|
||||
|
||||
#define DEBUG
|
||||
typedef struct
|
||||
{
|
||||
int fd;
|
||||
char *from;
|
||||
char *to;
|
||||
char *msg;
|
||||
int len;
|
||||
} MSG_INFO;
|
||||
|
||||
typedef struct
|
||||
{
|
||||
int index;
|
||||
int fd;
|
||||
char ip[20];
|
||||
char id[ID_SIZE];
|
||||
char pw[ID_SIZE];
|
||||
} CLIENT_INFO;
|
||||
|
||||
void *clnt_connection(void *arg);
|
||||
void send_msg(MSG_INFO *msg_info, CLIENT_INFO *first_client_info);
|
||||
void error_handling(char *msg);
|
||||
void log_file(char *msgstr);
|
||||
void getlocaltime(char *buf);
|
||||
|
||||
int clnt_cnt = 0;
|
||||
pthread_mutex_t mutx;
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
{
|
||||
int serv_sock, clnt_sock;
|
||||
struct sockaddr_in serv_adr, clnt_adr;
|
||||
int clnt_adr_sz;
|
||||
int sock_option = 1;
|
||||
pthread_t t_id[MAX_CLNT] = {0};
|
||||
int str_len = 0;
|
||||
int i = 0;
|
||||
char idpasswd[(ID_SIZE * 2) + 3];
|
||||
char *pToken;
|
||||
char *pArray[ARR_CNT] = {0};
|
||||
char msg[BUF_SIZE];
|
||||
|
||||
FILE *idFd = fopen("idpasswd.txt", "r");
|
||||
if (idFd == NULL)
|
||||
{
|
||||
perror("fopen(\"idpasswd.txt\",\"r\") ");
|
||||
exit(1);
|
||||
}
|
||||
char id[ID_SIZE];
|
||||
char pw[ID_SIZE];
|
||||
CLIENT_INFO *client_info = (CLIENT_INFO *)calloc(sizeof(CLIENT_INFO), MAX_CLNT);
|
||||
if (client_info == NULL)
|
||||
{
|
||||
perror("calloc()");
|
||||
exit(1);
|
||||
}
|
||||
do
|
||||
{
|
||||
str_len = fscanf(idFd, "%s %s", id, pw);
|
||||
if (str_len <= 0)
|
||||
break;
|
||||
client_info[i].fd = -1;
|
||||
strcpy(client_info[i].id, id);
|
||||
strcpy(client_info[i].pw, pw);
|
||||
i++;
|
||||
|
||||
if (i > MAX_CLNT)
|
||||
{
|
||||
printf("error client_info pull(Max:%d)\n", MAX_CLNT);
|
||||
break;
|
||||
}
|
||||
} while (1);
|
||||
fclose(idFd);
|
||||
|
||||
if (argc != 2)
|
||||
{
|
||||
printf("Usage : %s <port>\n", argv[0]);
|
||||
exit(1);
|
||||
}
|
||||
fputs("IoT Server Start!!\n", stdout);
|
||||
|
||||
if (pthread_mutex_init(&mutx, NULL))
|
||||
error_handling("mutex init error");
|
||||
|
||||
serv_sock = socket(PF_INET, SOCK_STREAM, 0);
|
||||
|
||||
memset(&serv_adr, 0, sizeof(serv_adr));
|
||||
serv_adr.sin_family = AF_INET;
|
||||
serv_adr.sin_addr.s_addr = htonl(INADDR_ANY);
|
||||
serv_adr.sin_port = htons(atoi(argv[1]));
|
||||
|
||||
setsockopt(serv_sock, SOL_SOCKET, SO_REUSEADDR, (void *)&sock_option, sizeof(sock_option));
|
||||
if (bind(serv_sock, (struct sockaddr *)&serv_adr, sizeof(serv_adr)) == -1)
|
||||
error_handling("bind() error");
|
||||
|
||||
if (listen(serv_sock, 5) == -1)
|
||||
error_handling("listen() error");
|
||||
|
||||
while (1)
|
||||
{
|
||||
clnt_adr_sz = sizeof(clnt_adr);
|
||||
clnt_sock = accept(serv_sock, (struct sockaddr *)&clnt_adr, &clnt_adr_sz);
|
||||
if (clnt_cnt >= MAX_CLNT)
|
||||
{
|
||||
printf("socket full\n");
|
||||
shutdown(clnt_sock, SHUT_WR);
|
||||
continue;
|
||||
}
|
||||
else if (clnt_sock < 0)
|
||||
{
|
||||
perror("accept()");
|
||||
continue;
|
||||
}
|
||||
|
||||
str_len = read(clnt_sock, idpasswd, sizeof(idpasswd));
|
||||
idpasswd[str_len] = '\0';
|
||||
|
||||
if (str_len > 0)
|
||||
{
|
||||
i = 0;
|
||||
pToken = strtok(idpasswd, "[:]");
|
||||
|
||||
while (pToken != NULL)
|
||||
{
|
||||
pArray[i] = pToken;
|
||||
if (i++ >= ARR_CNT)
|
||||
break;
|
||||
pToken = strtok(NULL, "[:]");
|
||||
}
|
||||
for (i = 0; i < MAX_CLNT; i++)
|
||||
{
|
||||
if (!strcmp(client_info[i].id, pArray[0]))
|
||||
{
|
||||
if (!strcmp(client_info[i].pw, pArray[1]))
|
||||
{
|
||||
// 같은 ID가 이미 연결 중이면, 이전 세션을 끊고 **지금 소켓으로 인수**
|
||||
if (client_info[i].fd != -1)
|
||||
{
|
||||
sprintf(msg, "[%s] takeover previous session (old fd:%d)\n",
|
||||
pArray[0], client_info[i].fd);
|
||||
log_file(msg);
|
||||
// 이전 연결 정리
|
||||
close(client_info[i].fd);
|
||||
pthread_mutex_lock(&mutx);
|
||||
clnt_cnt--; // 아래에서 새로 +1 할 거라서 미리 -1
|
||||
pthread_mutex_unlock(&mutx);
|
||||
}
|
||||
|
||||
// 새 연결 등록
|
||||
strcpy(client_info[i].ip, inet_ntoa(clnt_adr.sin_addr));
|
||||
pthread_mutex_lock(&mutx);
|
||||
client_info[i].index = i;
|
||||
client_info[i].fd = clnt_sock;
|
||||
clnt_cnt++;
|
||||
pthread_mutex_unlock(&mutx);
|
||||
|
||||
sprintf(msg,"[%s] New connected! (ip:%s,fd:%d,sockcnt:%d)\n",
|
||||
pArray[0], inet_ntoa(clnt_adr.sin_addr), clnt_sock, clnt_cnt);
|
||||
log_file(msg);
|
||||
write(clnt_sock, msg, strlen(msg));
|
||||
|
||||
pthread_create(t_id + i, NULL, clnt_connection, (void *)(client_info + i));
|
||||
pthread_detach(t_id[i]);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (i == MAX_CLNT)
|
||||
{
|
||||
sprintf(msg, "[%s] Authentication Error!\n", pArray[0]);
|
||||
write(clnt_sock, msg, strlen(msg));
|
||||
log_file(msg);
|
||||
shutdown(clnt_sock, SHUT_WR);
|
||||
}
|
||||
}
|
||||
else
|
||||
shutdown(clnt_sock, SHUT_WR);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
void *clnt_connection(void *arg)
|
||||
{
|
||||
CLIENT_INFO *client_info = (CLIENT_INFO *)arg;
|
||||
int str_len = 0;
|
||||
int index = client_info->index;
|
||||
char msg[BUF_SIZE];
|
||||
char to_msg[MAX_CLNT * ID_SIZE + 1];
|
||||
int i = 0;
|
||||
char *pToken;
|
||||
char *pArray[ARR_CNT] = {0};
|
||||
char strBuff[BUF_SIZE * 2] = {0};
|
||||
|
||||
MSG_INFO msg_info;
|
||||
CLIENT_INFO *first_client_info;
|
||||
|
||||
first_client_info = (CLIENT_INFO *)((void *)client_info - (void *)(sizeof(CLIENT_INFO) * index));
|
||||
while (1)
|
||||
{
|
||||
memset(msg, 0x0, sizeof(msg));
|
||||
str_len = read(client_info->fd, msg, sizeof(msg) - 1);
|
||||
if (str_len <= 0)
|
||||
break;
|
||||
|
||||
msg[str_len] = '\0';
|
||||
pToken = strtok(msg, "[:]");
|
||||
i = 0;
|
||||
while (pToken != NULL)
|
||||
{
|
||||
pArray[i] = pToken;
|
||||
if (i++ >= ARR_CNT)
|
||||
break;
|
||||
pToken = strtok(NULL, "[:]");
|
||||
}
|
||||
|
||||
msg_info.fd = client_info->fd;
|
||||
msg_info.from = client_info->id;
|
||||
msg_info.to = pArray[0];
|
||||
sprintf(to_msg, "[%s]%s", msg_info.from, pArray[1]);
|
||||
msg_info.msg = to_msg;
|
||||
msg_info.len = strlen(to_msg);
|
||||
|
||||
sprintf(strBuff, "msg : [%s->%s] %s", msg_info.from, msg_info.to, pArray[1]);
|
||||
log_file(strBuff);
|
||||
send_msg(&msg_info, first_client_info);
|
||||
}
|
||||
|
||||
close(client_info->fd);
|
||||
|
||||
sprintf(strBuff, "Disconnect ID:%s (ip:%s,fd:%d,sockcnt:%d)\n", client_info->id, client_info->ip, client_info->fd, clnt_cnt - 1);
|
||||
log_file(strBuff);
|
||||
|
||||
pthread_mutex_lock(&mutx);
|
||||
clnt_cnt--;
|
||||
client_info->fd = -1;
|
||||
pthread_mutex_unlock(&mutx);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void send_msg(MSG_INFO *msg_info, CLIENT_INFO *first_client_info)
|
||||
{
|
||||
int i = 0;
|
||||
|
||||
if (!strcmp(msg_info->to, "ALLMSG"))
|
||||
{
|
||||
for (i = 0; i < MAX_CLNT; i++)
|
||||
if ((first_client_info + i)->fd != -1)
|
||||
write((first_client_info + i)->fd, msg_info->msg, msg_info->len);
|
||||
}
|
||||
else if (!strcmp(msg_info->to, "IDLIST"))
|
||||
{
|
||||
char *idlist = (char *)malloc(ID_SIZE * MAX_CLNT);
|
||||
msg_info->msg[strlen(msg_info->msg) - 1] = '\0';
|
||||
strcpy(idlist, msg_info->msg);
|
||||
|
||||
for (i = 0; i < MAX_CLNT; i++)
|
||||
{
|
||||
if ((first_client_info + i)->fd != -1)
|
||||
{
|
||||
strcat(idlist, (first_client_info + i)->id);
|
||||
strcat(idlist, " ");
|
||||
}
|
||||
}
|
||||
strcat(idlist, "\n");
|
||||
write(msg_info->fd, idlist, strlen(idlist));
|
||||
free(idlist);
|
||||
}
|
||||
else if (!strcmp(msg_info->to, "GETTIME"))
|
||||
{
|
||||
sleep(1);
|
||||
getlocaltime(msg_info->msg);
|
||||
write(msg_info->fd, msg_info->msg, strlen(msg_info->msg));
|
||||
}
|
||||
else
|
||||
for (i = 0; i < MAX_CLNT; i++)
|
||||
if ((first_client_info + i)->fd != -1)
|
||||
if (!strcmp(msg_info->to, (first_client_info + i)->id))
|
||||
write((first_client_info + i)->fd, msg_info->msg, msg_info->len);
|
||||
}
|
||||
|
||||
void error_handling(char *msg)
|
||||
{
|
||||
fputs(msg, stderr);
|
||||
fputc('\n', stderr);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
void log_file(char *msgstr)
|
||||
{
|
||||
fputs(msgstr, stdout);
|
||||
}
|
||||
void getlocaltime(char *buf)
|
||||
{
|
||||
struct tm *t;
|
||||
time_t tt;
|
||||
char wday[7][4] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
|
||||
tt = time(NULL);
|
||||
if (errno == EFAULT)
|
||||
perror("time()");
|
||||
t = localtime(&tt);
|
||||
sprintf(buf, "[GETTIME]%02d.%02d.%02d %02d:%02d:%02d %s", t->tm_year + 1900 - 2000, t->tm_mon + 1, t->tm_mday, t->tm_hour, t->tm_min, t->tm_sec, wday[t->tm_wday]);
|
||||
return;
|
||||
}
|
||||
Reference in new issue
Block a user