c,sockets , Coverity - overrun of struct type


Coverity - overrun of struct type

Question:

Tag: c,sockets

I am getting the following error through the coverity tool -

overrun-buffer-arg: Overrunning struct type in_addr of 4 bytes by passing it to a function which accesses it at byte offset 7 using argument "8UL".

sample code:

static u_long   addr;
static struct   sockaddr_in remote_server;
addr = inet_addr(remote_servername);
memcpy((char *) &remote_server.sin_addr, (char *)&addr, sizeof(addr));

In the last line, I am getting the above error.

Can someone through some light on, what's going wrong.

Please let me know, if you need any more information.


Answer:

inet_addr() returns an in_addr_t, not an u_long. struct sockaddr_in's sin_addr is a struct in_addr, which holds an in_addr_t s_addr.

This should do the trick:

static struct   sockaddr_in remote_server;
remote_server.sin_addr.s_addr = inet_addr(remote_servername);

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