patch-2.1.22 linux/include/linux/socket.h
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- Lines: 50
- Date:
Sun Jan 19 15:47:26 1997
- Orig file:
v2.1.21/linux/include/linux/socket.h
- Orig date:
Mon Dec 30 15:39:16 1996
diff -u --recursive --new-file v2.1.21/linux/include/linux/socket.h linux/include/linux/socket.h
@@ -63,9 +63,16 @@
#define CMSG_ALIGN(len) ( ((len)+sizeof(long)-1) & ~(sizeof(long)-1) )
-#define CMSG_FIRST(msg) ((msg)->msg_controllen >= sizeof(struct cmsghdr) ? \
- (struct cmsghdr *)(msg)->msg_control : \
- (struct cmsghdr *)NULL)
+/* Stevens's Adv. API specifies CMSG_SPACE & CMSG_LENGTH,
+ * I cannot understand, what the differenece? --ANK
+ */
+
+#define CMSG_SPACE(len) CMSG_ALIGN((len)+sizeof(struct cmsghdr))
+#define CMSG_LENGTH(len) CMSG_ALIGN((len)+sizeof(struct cmsghdr))
+
+#define CMSG_FIRSTHDR(msg) ((msg)->msg_controllen >= sizeof(struct cmsghdr) ? \
+ (struct cmsghdr *)(msg)->msg_control : \
+ (struct cmsghdr *)NULL)
extern __inline__ struct cmsghdr * cmsg_nxthdr(struct msghdr *mhdr,
struct cmsghdr *cmsg)
@@ -83,20 +90,6 @@
return (struct cmsghdr *) ptr;
}
-#ifdef __KERNEL__
-
-#define KCMSG_NXTHDR(msg, cmsg) ({ \
- struct cmsghdr * __cmptr = (struct cmsghdr *)((unsigned char*)(cmsg) + CMSG_ALIGN(kcm.cmsg_len)); \
- ( (void *)(__cmptr + 1) <= (msg)->msg_control + (msg)->msg_controllen && \
- !copy_from_user(&kcm, __cmptr, sizeof(struct cmsghdr)) ? __cmptr : NULL); })
-
-#define KCMSG_FIRSTHDR(msg) ((msg)->msg_control && (msg)->msg_controllen >= sizeof(struct cmsghdr) \
- && !copy_from_user(&kcm, (msg)->msg_control, sizeof(struct cmsghdr)) ? \
- (struct cmsghdr *)(msg)->msg_control : \
- (struct cmsghdr *)NULL)
-
-#endif
-
/* "Socket"-level control message types: */
#define SCM_RIGHTS 0x01 /* rw: access rights (array of int) */
@@ -154,7 +147,7 @@
#define PF_AAL5 AF_AAL5
#define PF_X25 AF_X25
#define PF_INET6 AF_INET6
-#define PR_ROSE AF_ROSE
+#define PF_ROSE AF_ROSE
#define PF_DECNET AF_DECNET
#define PF_NETBEUI AF_NETBEUI
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