LXR linux-old/include/asm-x86

   1#ifndef SOCKET32_H
   2#define SOCKET32_H 1
   3
   4/* XXX This really belongs in some header file... -DaveM */
   5#define MAX_SOCK_ADDR   128             /* 108 for Unix domain - 
   6                                           16 for IP, 16 for IPX,
   7                                           24 for IPv6,
   8                                           about 80 for AX.25 */
   9
  10extern struct socket *sockfd_lookup(int fd, int *err);
  11
  12/* XXX This as well... */
  13extern __inline__ void sockfd_put(struct socket *sock)
  14{
  15        fput(sock->file);
  16}
  17
  18struct msghdr32 {
  19        u32               msg_name;
  20        int               msg_namelen;
  21        u32               msg_iov;
  22        __kernel_size_t32 msg_iovlen;
  23        u32               msg_control;
  24        __kernel_size_t32 msg_controllen;
  25        unsigned          msg_flags;
  26};
  27
  28struct cmsghdr32 {
  29        __kernel_size_t32 cmsg_len;
  30        int               cmsg_level;
  31        int               cmsg_type;
  32};
  33
  34/* Bleech... */
  35#define __CMSG32_NXTHDR(ctl, len, cmsg, cmsglen) __cmsg32_nxthdr((ctl),(len),(cmsg),(cmsglen))
  36#define CMSG32_NXTHDR(mhdr, cmsg, cmsglen) cmsg32_nxthdr((mhdr), (cmsg), (cmsglen))
  37
  38#define CMSG32_ALIGN(len) ( ((len)+sizeof(int)-1) & ~(sizeof(int)-1) )
  39
  40#define CMSG32_DATA(cmsg)       ((void *)((char *)(cmsg) + CMSG32_ALIGN(sizeof(struct cmsghdr32))))
  41#define CMSG32_SPACE(len) (CMSG32_ALIGN(sizeof(struct cmsghdr32)) + CMSG32_ALIGN(len))
  42#define CMSG32_LEN(len) (CMSG32_ALIGN(sizeof(struct cmsghdr32)) + (len))
  43
  44#define __CMSG32_FIRSTHDR(ctl,len) ((len) >= sizeof(struct cmsghdr32) ? \
  45                                    (struct cmsghdr32 *)(ctl) : \
  46                                    (struct cmsghdr32 *)NULL)
  47#define CMSG32_FIRSTHDR(msg)    __CMSG32_FIRSTHDR((msg)->msg_control, (msg)->msg_controllen)
  48#define CMSG32_OK(ucmlen, ucmsg, mhdr) \
  49        ((ucmlen) >= sizeof(struct cmsghdr32) && \
  50         (ucmlen) <= (unsigned long) \
  51         ((mhdr)->msg_controllen - \
  52          ((char *)(ucmsg) - (char *)(mhdr)->msg_control)))
  53
  54__inline__ struct cmsghdr32 *__cmsg32_nxthdr(void *__ctl, __kernel_size_t __size,
  55                                              struct cmsghdr32 *__cmsg, int __cmsg_len)
  56{
  57        struct cmsghdr32 * __ptr;
  58
  59        __ptr = (struct cmsghdr32 *)(((unsigned char *) __cmsg) +
  60                                     CMSG32_ALIGN(__cmsg_len));
  61        if ((unsigned long)((char*)(__ptr+1) - (char *) __ctl) > __size)
  62                return NULL;
  63
  64        return __ptr;
  65}
  66
  67__inline__ struct cmsghdr32 *cmsg32_nxthdr (struct msghdr *__msg,
  68                                            struct cmsghdr32 *__cmsg,
  69                                            int __cmsg_len)
  70{
  71        return __cmsg32_nxthdr(__msg->msg_control, __msg->msg_controllen,
  72                               __cmsg, __cmsg_len);
  73}
  74
  75#endif
  76