summaryrefslogtreecommitdiff
path: root/src/socket_connect.c
diff options
context:
space:
mode:
authorJannis Hoffmann <jannis@fehcom.de>2024-07-09 13:58:20 +0200
committerJannis Hoffmann <jannis@fehcom.de>2024-07-09 13:58:20 +0200
commit249866e3d1e11dc72eaa1305f4bb479ded92ef38 (patch)
tree7118c5f58e29fe61c100e4d067bb90ba8d52589e /src/socket_connect.c
parent96cf8dffe4f7b0b910f790066ae622dc429eb522 (diff)
reorganized file structure
Moved c files into src/. Corrected VERSION file. Removed BUILD and FILES.
Diffstat (limited to 'src/socket_connect.c')
-rw-r--r--src/socket_connect.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/src/socket_connect.c b/src/socket_connect.c
new file mode 100644
index 0000000..7b20659
--- /dev/null
+++ b/src/socket_connect.c
@@ -0,0 +1,66 @@
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <errno.h>
+#include "byte.h"
+#include "socket_if.h"
+#include "ip.h"
+
+/**
+ @file socket_connect.c
+ @author djb, fefe, feh, kp
+ @source qmail, ucscpi-tcp6
+ @brief connection to remote IP host
+*/
+
+int socket_connect6(int s,const char ip[16],uint16 port,uint32 scope_id)
+{
+ struct sockaddr_in6 sa;
+
+ byte_zero(&sa,sizeof(sa));
+ sa.sin6_family = AF_INET6;
+ uint16_pack_big((char *)&sa.sin6_port,port);
+ sa.sin6_flowinfo = 0;
+ sa.sin6_scope_id = scope_id;
+ byte_copy((char *)&sa.sin6_addr,16,ip);
+
+ return connect(s,(struct sockaddr *)&sa,sizeof(sa));
+}
+
+/* this explizit declaration is needed to prevent compiler warnings */
+int read(int _str, void *_buf, int _b);
+
+int socket_connect4(int s,const char ip[4],uint16 port)
+{
+ struct sockaddr_in sa;
+
+ byte_zero(&sa,sizeof(sa));
+ sa.sin_family = AF_INET;
+ uint16_pack_big((char *)&sa.sin_port,port);
+ byte_copy((char *)&sa.sin_addr,4,ip);
+
+ return connect(s,(struct sockaddr *)&sa,sizeof(sa));
+}
+
+int socket_connect(int s,const char ip[16],uint16 port,uint32 scope_id)
+{
+ if (ip6_isv4mapped(ip))
+ return socket_connect4(s,ip + 12,port);
+
+ return socket_connect6(s,ip,port,scope_id);
+}
+
+int socket_connected(int s)
+{
+ struct sockaddr_in6 sa;
+ int dummy;
+ char ch;
+
+ dummy = sizeof(sa);
+ if (getpeername(s,(struct sockaddr *)&sa,(socklen_t *)&dummy) == -1) {
+ read(s,&ch,1); /* sets errno */
+ return 0;
+ }
+ return 1;
+}