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Diffstat (limited to 'socket_recv6.c')
-rw-r--r--socket_recv6.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/socket_recv6.c b/socket_recv6.c
new file mode 100644
index 0000000..dfbd781
--- /dev/null
+++ b/socket_recv6.c
@@ -0,0 +1,42 @@
+#include <sys/param.h>
+#include "sockaddr_in6.h"
+#include "byte.h"
+#include "socket.h"
+#include "ip6.h"
+#include "haveip6.h"
+#include "error.h"
+
+int socket_recv6(int s,char *buf,unsigned int len,char ip[16],uint16 *port,uint32 *scope_id)
+{
+#ifdef LIBC_HAS_IP6
+ struct sockaddr_in6 sa;
+#else
+ struct sockaddr_in sa;
+#endif
+ unsigned int dummy = sizeof sa;
+ int r;
+
+ byte_zero(&sa,dummy);
+ r = recvfrom(s,buf,len,0,(struct sockaddr *) &sa,&dummy);
+ if (r == -1) return -1;
+
+#ifdef LIBC_HAS_IP6
+ if (noipv6 || sa.sin6_family==AF_INET || sa.sin6_family==PF_INET) {
+ struct sockaddr_in *sa4=(struct sockaddr_in *)&sa;
+ byte_copy(ip,12,V4mappedprefix);
+ byte_copy(ip+12,4,(char *) &sa4->sin_addr);
+ uint16_unpack_big((char *) &sa4->sin_port,port);
+ return r;
+ }
+ byte_copy(ip,16,(char *) &sa.sin6_addr);
+ uint16_unpack_big((char *) &sa.sin6_port,port);
+ if (scope_id) *scope_id=sa.sin6_scope_id;
+#else
+ byte_copy(ip,12,(char *)V4mappedprefix);
+ byte_copy(ip+12,4,(char *) &sa.sin_addr);
+ uint16_unpack_big((char *) &sa.sin_port,port);
+ if (scope_id) *scope_id=0;
+#endif
+
+ return r;
+}