Fra C til C++
Hejjeg vil gerne kunne lave dette i C++, så jeg senere kan arbejde med C++ features, men kan ikke compile under g++ (virker under gcc)
fejl:
> g++ server.c -o ww
server.c: In function `int main()':
server.c:35: implicit declaration of function `int memset(...)'
server.c:49: passing `int *' as argument 3 of `accept(int, sockaddr *, socklen_t *)' changes signedness
Sovs:
/* <---- SOURCE CODE STARTS HERE ----> */
#include <stdio.h> /* These are the usual header files */
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
// mw
#include <netdb.h> // For gethostbyname()
#include <arpa/inet.h> // For inet_addr()
#include <unistd.h> // For close()
#define PORT 3550 /* Port that will be opened */
#define BACKLOG 2 /* Number of allowed connections */
main()
{
int fd, fd2; /* file descriptors */
struct sockaddr_in server; /* server's address information */
struct sockaddr_in client; /* client's address information */
int sin_size;
if ((fd=socket(AF_INET, SOCK_STREAM, 0)) == -1 ){ /* calls socket() */
printf("socket() error\n");
exit(-1);
}
server.sin_family = AF_INET;
server.sin_port = htons(PORT); /* Remember htons() from "Conversions" section? =) */
server.sin_addr.s_addr = INADDR_ANY; /* INADDR_ANY puts your IP address automatically */
//bzero(&(server.sin_zero),8); /* zero the rest of the structure */
memset(&(server.sin_zero), '\0', 8);
if(bind(fd,(struct sockaddr*)&server,sizeof(struct sockaddr))==-1){ /* calls bind() */
printf("bind() error\n");
exit(-1);
}
if(listen(fd,BACKLOG) == -1){ /* calls listen() */
printf("listen() error\n");
exit(-1);
}
while(1){
sin_size=sizeof(struct sockaddr_in);
if ((fd2 = accept(fd,(struct sockaddr *)&client,&sin_size))==-1){ /* calls accept() */
printf("accept() error\n");
exit(-1);
}
printf("You got a connection from %s\n",inet_ntoa(client.sin_addr) ); /* prints client's IP */
send(fd2,"Welcome to my server.\n",22,0); /* send to the client welcome message */
close(fd2); /* close fd2 */
}
}
/* <---- SOURCE CODE ENDS HERE ----> */
