From 1bcce7eed7a41aea705523063a947ec2c494b6d8 Mon Sep 17 00:00:00 2001
From: leitner <leitner>
Date: Mon, 5 Feb 2001 19:06:12 +0000
Subject: [PATCH] even more stuff

---
 .cvsignore                |  1 +
 haven2i.h                 |  1 +
 socket/socket_getifidx.c  | 13 ++++++++++
 socket/socket_getifname.c | 21 ++++++++++++++++
 socket/socket_local4.c    | 18 ++++++++++++++
 socket/socket_local6.c    | 40 +++++++++++++++++++++++++++++++
 socket/socket_remote4.c   | 18 ++++++++++++++
 socket/socket_remote6.c   | 40 +++++++++++++++++++++++++++++++
 socket/socket_send4.c     | 16 +++++++++++++
 socket/socket_send6.c     | 39 ++++++++++++++++++++++++++++++
 socket/socket_sendfile.c  | 50 +++++++++++++++++++++++++++++++++++++++
 11 files changed, 257 insertions(+)
 create mode 100644 .cvsignore
 create mode 100644 haven2i.h
 create mode 100644 socket/socket_getifidx.c
 create mode 100644 socket/socket_getifname.c
 create mode 100644 socket/socket_local4.c
 create mode 100644 socket/socket_local6.c
 create mode 100644 socket/socket_remote4.c
 create mode 100644 socket/socket_remote6.c
 create mode 100644 socket/socket_send4.c
 create mode 100644 socket/socket_send6.c
 create mode 100644 socket/socket_sendfile.c

diff --git a/.cvsignore b/.cvsignore
new file mode 100644
index 0000000..718f4d2
--- /dev/null
+++ b/.cvsignore
@@ -0,0 +1 @@
+t
diff --git a/haven2i.h b/haven2i.h
new file mode 100644
index 0000000..fd50644
--- /dev/null
+++ b/haven2i.h
@@ -0,0 +1 @@
+#define HAVE_N2I
diff --git a/socket/socket_getifidx.c b/socket/socket_getifidx.c
new file mode 100644
index 0000000..c71fc48
--- /dev/null
+++ b/socket/socket_getifidx.c
@@ -0,0 +1,13 @@
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include "socket.h"
+#include "haven2i.h"
+
+uint32 socket_getifidx(const char* ifname) {
+#ifdef HAVE_N2I
+  return if_nametoindex(ifname);
+#else
+  return 0;
+#endif
+}
diff --git a/socket/socket_getifname.c b/socket/socket_getifname.c
new file mode 100644
index 0000000..72b2d0c
--- /dev/null
+++ b/socket/socket_getifname.c
@@ -0,0 +1,21 @@
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include "socket.h"
+#include "haven2i.h"
+
+#ifdef HAVE_N2I
+static char ifname[IFNAMSIZ];
+
+const char* socket_getifname(uint32 interface) {
+  char *tmp=if_indextoname(interface,ifname);
+  if (tmp)
+    return tmp;
+  else
+    return "[unknown]";
+}
+#else
+const char* socket_getifname(uint32 interface) {
+  return "[unknown]";
+}
+#endif
diff --git a/socket/socket_local4.c b/socket/socket_local4.c
new file mode 100644
index 0000000..0a82496
--- /dev/null
+++ b/socket/socket_local4.c
@@ -0,0 +1,18 @@
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include "byte.h"
+#include "socket.h"
+
+int socket_local4(int s,char ip[4],uint16 *port)
+{
+  struct sockaddr_in si;
+  unsigned int len = sizeof si;
+
+  if (getsockname(s,(struct sockaddr *) &si,&len) == -1) return -1;
+  *(uint32*)ip = *(uint32*)&si.sin_addr;
+  uint16_unpack_big((char *) &si.sin_port,port);
+  return 0;
+}
+
diff --git a/socket/socket_local6.c b/socket/socket_local6.c
new file mode 100644
index 0000000..ba1e01f
--- /dev/null
+++ b/socket/socket_local6.c
@@ -0,0 +1,40 @@
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include "byte.h"
+#include "socket.h"
+#include "ip6.h"
+#include "haveip6.h"
+#include "error.h"
+#include "uint32.h"
+
+int socket_local6(int s,char ip[16],uint16 *port,uint32 *scope_id)
+{
+#ifdef LIBC_HAS_IP6
+  struct sockaddr_in6 si;
+#else
+  struct sockaddr_in si;
+#endif
+  unsigned int len = sizeof si;
+
+  if (getsockname(s,(struct sockaddr *) &si,&len) == -1) return -1;
+#ifdef LIBC_HAS_IP6
+  if (si.sin6_family==AF_INET) {
+    struct sockaddr_in *si4=(struct sockaddr_in*)&si;
+    byte_copy(ip,12,V4mappedprefix);
+    byte_copy(ip+12,4,(char *) &si4->sin_addr);
+    uint16_unpack_big((char *) &si4->sin_port,port);
+    return 0;
+  }
+  byte_copy(ip,16,(char *) &si.sin6_addr);
+  uint16_unpack_big((char *) &si.sin6_port,port);
+  if (scope_id) *scope_id=si.sin6_scope_id;
+#else
+  byte_copy(ip,12,V4mappedprefix);
+  byte_copy(ip+12,4,(char *) &si.sin_addr);
+  uint16_unpack_big((char *) &si.sin_port,port);
+  if (scope_id) *scope_id=0;
+#endif
+  return 0;
+}
diff --git a/socket/socket_remote4.c b/socket/socket_remote4.c
new file mode 100644
index 0000000..b3c99c8
--- /dev/null
+++ b/socket/socket_remote4.c
@@ -0,0 +1,18 @@
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include "byte.h"
+#include "socket.h"
+
+int socket_remote4(int s,char ip[4],uint16 *port)
+{
+  struct sockaddr_in si;
+  unsigned int len = sizeof si;
+
+  if (getpeername(s,(struct sockaddr *) &si,&len) == -1) return -1;
+  *(uint32*)ip = *(uint32*)&si.sin_addr;
+  uint16_unpack_big((char *) &si.sin_port,port);
+  return 0;
+}
+
diff --git a/socket/socket_remote6.c b/socket/socket_remote6.c
new file mode 100644
index 0000000..6d80aff
--- /dev/null
+++ b/socket/socket_remote6.c
@@ -0,0 +1,40 @@
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include "byte.h"
+#include "socket.h"
+#include "ip6.h"
+#include "haveip6.h"
+#include "error.h"
+#include "uint32.h"
+
+int socket_remote6(int s,char ip[16],uint16 *port,uint32 *scope_id)
+{
+#ifdef LIBC_HAS_IP6
+  struct sockaddr_in6 si;
+#else
+  struct sockaddr_in si;
+#endif
+  unsigned int len = sizeof si;
+
+  if (getpeername(s,(struct sockaddr *) &si,&len) == -1) return -1;
+#ifdef LIBC_HAS_IP6
+  if (si.sin6_family==AF_INET) {
+    struct sockaddr_in *si4=(struct sockaddr_in*)&si;
+    byte_copy(ip,12,V4mappedprefix);
+    byte_copy(ip+12,4,(char *) &si4->sin_addr);
+    uint16_unpack_big((char *) &si4->sin_port,port);
+    return 0;
+  }
+  byte_copy(ip,16,(char *) &si.sin6_addr);
+  uint16_unpack_big((char *) &si.sin6_port,port);
+  if (scope_id) *scope_id=si.sin6_scope_id;
+#else
+  byte_copy(ip,12,V4mappedprefix);
+  byte_copy(ip+12,4,(char *) &si.sin_addr);
+  uint16_unpack_big((char *) &si.sin_port,port);
+  if (scope_id) *scope_id=0;
+#endif
+  return 0;
+}
diff --git a/socket/socket_send4.c b/socket/socket_send4.c
new file mode 100644
index 0000000..e76a603
--- /dev/null
+++ b/socket/socket_send4.c
@@ -0,0 +1,16 @@
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include "byte.h"
+#include "socket.h"
+
+int socket_send4(int s,const char *buf,unsigned int len,const char ip[4],uint16 port) {
+  struct sockaddr_in si;
+
+  byte_zero(&si,sizeof si);
+  si.sin_family = AF_INET;
+  uint16_pack_big((char*) &si.sin_port,port);
+  *((uint32*)&si.sin_addr) = *((uint32*)ip);
+  return sendto(s,buf,len,0,(struct sockaddr *) &si,sizeof si);
+}
diff --git a/socket/socket_send6.c b/socket/socket_send6.c
new file mode 100644
index 0000000..75f23e8
--- /dev/null
+++ b/socket/socket_send6.c
@@ -0,0 +1,39 @@
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <errno.h>
+#include "byte.h"
+#include "socket.h"
+#include "ip6.h"
+#include "haveip6.h"
+
+int socket_send6(int s,const char *buf,unsigned int len,const char ip[16],uint16 port,uint32 scope_id)
+{
+#ifdef LIBC_HAS_IP6
+  struct sockaddr_in6 si;
+#else
+  struct sockaddr_in si;
+#endif
+
+  byte_zero(&si,sizeof si);
+#ifdef LIBC_HAS_IP6
+  if (noipv6) {
+#endif
+    if (ip6_isv4mapped(ip))
+      return socket_send4(s,buf,len,ip+12,port);
+    if (byte_equal(ip,16,V6loopback))
+      return socket_send4(s,buf,len,ip4loopback,port);
+#ifdef LIBC_HAS_IP6
+    errno=EPROTO;
+    return -1;
+  }
+  si.sin6_family = AF_INET6;
+  uint16_pack_big((char *) &si.sin6_port,port);
+  byte_copy((char *) &si.sin6_addr,16,ip);
+  return sendto(s,buf,len,0,(struct sockaddr *) &si,sizeof si);
+#else
+  errno=EPROTO;
+  return -1;
+#endif
+}
diff --git a/socket/socket_sendfile.c b/socket/socket_sendfile.c
new file mode 100644
index 0000000..8a674de
--- /dev/null
+++ b/socket/socket_sendfile.c
@@ -0,0 +1,50 @@
+#include <unistd.h>
+#include "socket.h"
+
+#ifdef __linux__
+
+#ifdef __GLIBC__
+#include <sys/sendfile.h>
+#else
+#ifdef __dietlibc__
+#include <sys/sendfile.h>
+#else
+#include <linux/unistd.h>
+_syscall4(int,sendfile,int,out,int,in,long *,offset,unsigned long,count)
+#endif
+#endif
+
+int socket_sendfile(int out,int in,uint32 offset,uint32 bytes) {
+  return sendfile(out,in,&offset,bytes);
+}
+
+#else
+
+#ifdef _HPUX_SOURCE
+
+/* http://www.devresource.hp.com/STK/man/10.30/sendfile_2.html */
+#include <sys/socket.h>
+int socket_sendfile(int out,int in,uint32 offset,uint32 bytes) {
+  return sendfile(out,in,offset,bytes,0,0);
+}
+
+#else
+
+#define BUFSIZE 16384
+
+int socket_sendfile(int out,int in,uint32 offset,uint32 bytes) {
+  char buf[BUFSIZE];
+  int n,m;
+  int sent=0;
+  if (lseek(in,offset,SEEK_SET) == -1)
+    return -1;
+  if ((n=read(in,buf,(bytes<BUFSIZE)?bytes:BUFSIZE))<0)
+    return (sent?sent:-1);
+  if ((m=write(out,buf,n))<0)
+    return -1;
+  return n;
+}
+
+#endif
+
+#endif