What will happen when the following client code is executed?

struct sockaddr_in server_addr;
int sockfd = socket(AF_INET, SOCK_STREAM, 0);
memset(&server_addr, 0, sizeof(server_addr));
server_addr.sin_family = AF_INET;
server_addr.sin_port = htons(80);

connect(sockfd, (struct sockaddr*)&server_addr, sizeof(server_addr));

Question

What will happen when the following client code is executed?

struct sockaddr_in server_addr;
int sockfd = socket(AF_INET, SOCK_STREAM, 0);
memset(&server_addr, 0, sizeof(server_addr));
server_addr.sin_family = AF_INET;
server_addr.sin_port = htons(80);
 
connect(sockfd, (struct sockaddr*)&server_addr, sizeof(server_addr));

Answer

a.  The socket will be created in non-blocking mode causing connect() to return immediately

Answer

b.  The connect() call will fail because no destination IP address was specified

Answer

c.  The code will compile but crash at runtime because sockfd wasn't error-checked

Answer

d.  The code will connect to localhost (127.0.0.1) by default

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What will happen when the following client code is executed? struct sockadd...

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