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Adding socket(), bind() logic

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@319 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2007-09-01 20:56:19 +00:00
parent 29aeec7b8a
commit 6119aa0943
15 changed files with 413 additions and 51 deletions
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net/socket.c
+80 -1
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@@ -38,10 +38,14 @@
****************************************************************************/
#include <nuttx/config.h>
#ifdef CONFIG_NET
#include <sys/types.h>
#include <sys/socket.h>
#include <errno.h>
#include "net_internal.h"
/****************************************************************************
* Global Functions
****************************************************************************/
@@ -60,13 +64,88 @@
* Returned Value:
* 0 on success; -1 on error with errno set appropriately
*
* EACCES
* Permission to create a socket of the specified type and/or protocol
* is denied.
* EAFNOSUPPORT
* The implementation does not support the specified address family.
* EINVAL
* Unknown protocol, or protocol family not available.
* EMFILE
* Process file table overflow.
* ENFILE
* The system limit on the total number of open files has been reached.
* ENOBUFS or ENOMEM
* Insufficient memory is available. The socket cannot be created until
* sufficient resources are freed.
* EPROTONOSUPPORT
* The protocol type or the specified protocol is not supported within
* this domain.
*
* Assumptions:
*
****************************************************************************/
int socket(int domain, int type, int protocol)
{
*get_errno_ptr() = ENOSYS;
#ifdef CONFIG_NET_UDP
FAR struct socket *psock;
#endif
int sockfd;
int err;
/* Only PF_INET or PF_INET6 domains supported */
#ifdef CONFIG_NET_IPv6
if ( domain != PF_INET6)
#else
if ( domain != PF_INET)
#endif
{
err = EAFNOSUPPORT;
goto errout;
}
/* Only SOCK_STREAM and possible SOCK_DRAM are supported */
#ifdef CONFIG_NET_UDP
if (protocol != 0 || (type != SOCK_STREAM && type != SOCK_DGRAM))
#else
if (protocol != 0 || type != SOCK_STREAM)
#endif
{
err = EPROTONOSUPPORT;
goto errout;
}
/* Everything looks good. Allocate a socket descriptor */
sockfd = sockfd_allocate();
if (sockfd < 0)
{
err = ENFILE;
goto errout;
}
/* Initialize the socket structure */
#ifdef CONFIG_NET_UDP
psock = sockfd_socket(sockfd);
if (psock)
{
/* Save the protocol type */
psock->s_type = type;
}
#endif
return sockfd;
errout:
*get_errno_ptr() = err;
return ERROR;
}
#endif /* CONFIG_NET */