serv.c

#include <sys/types.h>

#include <sys/socket.h>

#include <sys/un.h>

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include <sys/stat.h>

#include <signal.h>

#define MAXBUF 256

char buf[MAXBUF];

int sockfd;

/*char* ReadCfg(){

	struct stat st;

	stat("/serv.cfg", &st);

	char *spath=malloc(st.st_size-1);

	FILE *file;

	file=fopen("./serv.cfg","r");

	fgets(spath, st.st_size, file);
	fclose(file);

	return spath;

}

char* CreateIPC(char *sockpath){

	int saddrlen;

	struct sockaddr_un serv_addr;

	if((sockfd=socket(AF_UNIX,SOCK_DGRAM,0))<0){

		printf("Cannot create socket\n");

		exit(1);

	}

	bzero(&serv_addr,sizeof(serv_addr));

	serv_addr.sun_family=AF_UNIX;

	strcpy(serv_addr.sun_path,sockpath);

	saddrlen=sizeof(serv_addr.sun_family)+strlen(serv_addr.sun_path); //почему не sizof(serv_addr)

	if(bind(sockfd,(struct sockaddr *)&serv_addr,saddrlen)<0){

		printf("error while binding socket\n");

		exit(1);

	}

}*/

void hup_handler(int sign){

	printf("Signal recieved\n");

}

main(){

	struct sigaction sa;

	sa.sa_handler=hup_handler;

	sigaction(SIGHUP,&sa,NULL);

	struct sockaddr_un clnt_addr;



	int n,caddrlen,max_caddrlen,saddrlen;

	char *sockpath;
	/*ReadCfg();

	/*if(access(sockpath, F_OK)==0){

		printf("IPC already exists!\n");

		exit(1);

	}

	CreateIPC(sockpath);



	max_caddrlen=sizeof(clnt_addr);

	/*while(1){

		caddrlen=max_caddrlen;

		n=recvfrom(sockfd,buf,MAXBUF,0, (struct sockaddr *) &clnt_addr,&caddrlen);

		if(n<0){

			printf("Error while receiving the message");

			exit(1);

		}

		if(sendto(sockfd,buf,n,0,(struct sockaddr *)&clnt_addr,caddrlen)!=n){

			printf("Error while sending the message");

			exit(1);

		}

	}*/

	printf("Before cycle\n");

	while(1)

		sleep(1);

}