diff options
Diffstat (limited to 'src/socket_tcp.c')
-rw-r--r-- | src/socket_tcp.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/socket_tcp.c b/src/socket_tcp.c new file mode 100644 index 0000000..1ff050e --- /dev/null +++ b/src/socket_tcp.c @@ -0,0 +1,63 @@ +#include <sys/types.h> +#include <sys/param.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <errno.h> +#include "close.h" /* better use unistd.h ? */ +#include "ndelay.h" +#include "socket_if.h" +#include "error.h" + +#ifndef EAFNOSUPPORT +#define EAFNOSUPPORT EINVAL +#endif + +/** + @file socket_tcp.c + @author djb, fefe, feh + @source ucspi-tcp6 + @brief setup TCP stream socket +*/ + +int socket_tcp4(void) +{ + int s; + + s = socket(AF_INET,SOCK_STREAM,0); + if (s != -1) + if (ndelay_on(s) == -1) { close(s); return -1; } + + return s; +} + +int socket_tcp6(void) +{ + int s; + + s = socket(AF_INET6,SOCK_STREAM,0); + if (s != -1) + if (ndelay_on(s) == -1) { close(s); return -1; } + + return s; +} + +int socket_tcp(void) +{ + int s; + + s = socket(AF_INET6,SOCK_STREAM,0); + if (s == -1) + if (errno == EINVAL || errno == EAFNOSUPPORT || errno == EPROTO || errno == EPROTONOSUPPORT) + s = socket(AF_INET,SOCK_STREAM,0); + + if (s != -1) + if (ndelay_on(s) == -1) { close(s); return -1; } + + return s; +} + +int socket_tcpnodelay(int s) +{ + int opt = 1; + return setsockopt(s,IPPROTO_TCP,1,&opt,sizeof(opt)); /* 1 == TCP_NODELAY */ +} |