application rename

app1.c

+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <math.h>
+#include <errno.h>
+#include <time.h>
+#include <arpa/inet.h>
+
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/sysmacros.h>
+
+#define SMOKE_DEV_PATH         "/dev/smoke_dev"
+#define BUZZER_DEV_PATH		"/dev/buzzer_dev"
+#define HYDRO_DEV_PATH		"/dev/hydro_dev"
+
+#define IOCTL_HYDRO_MAGIC_NUMBER	'h'
+
+#define INTERVAL         50000
+#define BUFF_SIZE	 50
+
+typedef struct{
+	int hydro_int;
+	int hydro_double;
+	int temp_int;
+	int temp_double;
+}HYDRO;
+
+#define IOCTL_CMD_HYDRO			_IOR(IOCTL_HYDRO_MAGIC_NUMBER, 0, HYDRO)
+int main(void)
+{
+   int client_socket;
+   struct sockaddr_in server_addr;
+   char buff[BUFF_SIZE+5] = "*Humidity:";
+   char buff2[BUFF_SIZE+5] = "Temperature";
+
+   client_socket = socket(PF_INET, SOCK_STREAM, 0);
+   if(client_socket == -1) {
+	   printf("socket fail\n");
+	   exit(1);
+   }
+
+   memset(&server_addr, 0, sizeof(server_addr));
+   server_addr.sin_family = AF_INET;
+   server_addr.sin_port = htons(4029);
+   server_addr.sin_addr.s_addr = inet_addr("192.168.10.6");
+
+   if(connect(client_socket, (struct sockaddr *)&server_addr, sizeof(server_addr)) == -1) {
+	   printf("connect error\n");
+	   return 1;
+   }
+   __pid_t pid;
+   int smoke_dev, smoke_data;
+   int buzzer_dev, buzzer_data = 400;
+   int hydro_dev;
+   HYDRO hydro_info;
+   char Temp[20], Hum[20]; 
+   smoke_dev = open(SMOKE_DEV_PATH, O_RDONLY);
+   buzzer_dev = open(BUZZER_DEV_PATH, O_RDWR);
+   hydro_dev = open(HYDRO_DEV_PATH, O_RDONLY);
+   
+   if(smoke_dev < 0) {
+	   printf("fail to open smoke detection sensor device\n");
+	   return 1;
+   }
+
+   if(buzzer_dev < 0) {
+	   printf("fail to open buzzer sensor device\n");
+	   return 1;
+   }
+
+   if(hydro_dev < 0) {
+	   printf("fail to open hydro sensor device\n");
+	   return 1;
+   }
+
+   int count = 0;
+   
+   pid = fork();
+   
+   if(pid) {
+       while(1) {
+	   read(smoke_dev, &smoke_data, sizeof(int));
+	   printf("data : %d\n", smoke_data);
+	   if(smoke_data > 600) {
+		   write(buzzer_dev, &buzzer_data, sizeof(int)*2);
+	   }
+	   sleep(1);
+	}
+   }
+   else {
+	while(1) {
+	    ioctl(hydro_dev, IOCTL_CMD_HYDRO, &hydro_info);
+	    printf("temperature is %d.%d%%, humidity is %d.%d%%\n",hydro_info.temp_int, hydro_info.temp_double, hydro_info.hydro_int, hydro_info.hydro_double);
+
+	    if(hydro_info.temp_double > 100)
+		 hydro_info.temp_double /= 100;
+	    else if(hydro_info.temp_double > 10)
+		    hydro_info.temp_double /= 10;
+
+	    if(hydro_info.hydro_double > 100)
+		    hydro_info.hydro_double /= 100;
+	    else if(hydro_info.hydro_double > 10)
+		    hydro_info.hydro_double /= 10;
+
+	    sprintf(Temp, "%d.%dC", hydro_info.temp_int, hydro_info.temp_double);
+	    sprintf(Hum, "%d.%d%%", hydro_info.hydro_int, hydro_info.hydro_double);      
+	    strcat(buff, Hum);
+	    strcat(buff2, Temp);
+	    printf("%s %s\n", Temp, Hum);
+	    write(client_socket, buff2, strlen(buff2) + 1);
+	    write(client_socket, buff, strlen(buff) + 1);
+	    strcpy(buff, "*Humidity:");
+	    strcpy(buff2, "Temperature");
+	    //buff = "**Humidity:", buff2 = "Temperature";
+	    sleep(5);
+	    
+	 }
+   }
+   
+   close(client_socket);
+   close(smoke_dev);
+   close(buzzer_dev);
+   close(hydro_dev);
+   
+   return 0;
+}