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authorGravatar Denis Vlasenko <vda.linux@googlemail.com>2007-01-12 20:59:31 +0000
committerGravatar Denis Vlasenko <vda.linux@googlemail.com>2007-01-12 20:59:31 +0000
commit5d68724d5b89fbf2856fdfbf36b85ac36a8f4464 (patch)
tree755b7393aab965f03de260a833f77cc4d51e6187 /libbb/xconnect.c
parent2c91652bbcc82c794c26230806058b04f1711033 (diff)
downloadbusybox-5d68724d5b89fbf2856fdfbf36b85ac36a8f4464.tar.gz
busybox-5d68724d5b89fbf2856fdfbf36b85ac36a8f4464.tar.bz2
next part of ipv6-ization. mostly netcat.
Diffstat (limited to 'libbb/xconnect.c')
-rw-r--r--libbb/xconnect.c50
1 files changed, 34 insertions, 16 deletions
diff --git a/libbb/xconnect.c b/libbb/xconnect.c
index f5a7e6dc8..65554b24e 100644
--- a/libbb/xconnect.c
+++ b/libbb/xconnect.c
@@ -32,7 +32,7 @@ void xconnect(int s, const struct sockaddr *s_addr, socklen_t addrlen)
}
}
-/* Return network byte ordered port number for a service.
+/* Return port number for a service.
* If "port" is a number use it as the port.
* If "port" is a name it is looked up in /etc/services, if it isnt found return
* default_port */
@@ -81,7 +81,21 @@ int xconnect_tcp_v4(struct sockaddr_in *s_addr)
/* "New" networking API */
-void set_port(len_and_sockaddr *lsa, unsigned port)
+int get_nport(len_and_sockaddr *lsa)
+{
+#if ENABLE_FEATURE_IPV6
+ if (lsa->sa.sa_family == AF_INET6) {
+ return lsa->sin6.sin6_port;
+ }
+#endif
+ if (lsa->sa.sa_family == AF_INET) {
+ return lsa->sin.sin_port;
+ }
+ return -1;
+ /* What? UNIX socket? IPX?? :) */
+}
+
+void set_nport(len_and_sockaddr *lsa, unsigned port)
{
#if ENABLE_FEATURE_IPV6
if (lsa->sa.sa_family == AF_INET6) {
@@ -146,7 +160,7 @@ static len_and_sockaddr* str2sockaddr(const char *host, int port, int ai_flags)
r = xmalloc(offsetof(len_and_sockaddr, sa) + result->ai_addrlen);
r->len = result->ai_addrlen;
memcpy(&r->sa, result->ai_addr, result->ai_addrlen);
- set_port(r, htons(port));
+ set_nport(r, htons(port));
freeaddrinfo(result);
return r;
}
@@ -161,19 +175,27 @@ static len_and_sockaddr* dotted2sockaddr(const char *host, int port)
return str2sockaddr(host, port, NI_NUMERICHOST);
}
-static int xsocket_stream(len_and_sockaddr *lsa)
+int xsocket_stream(len_and_sockaddr **lsap)
{
+ len_and_sockaddr *lsa;
int fd;
+ int len = sizeof(struct sockaddr_in);
+ int family = AF_INET;
+
#if ENABLE_FEATURE_IPV6
fd = socket(AF_INET6, SOCK_STREAM, 0);
- lsa->sa.sa_family = AF_INET6;
- lsa->len = sizeof(struct sockaddr_in6);
- if (fd >= 0)
- return fd;
+ if (fd >= 0) {
+ len = sizeof(struct sockaddr_in6);
+ family = AF_INET6;
+ } else
#endif
- fd = xsocket(AF_INET, SOCK_STREAM, 0);
- lsa->sa.sa_family = AF_INET;
- lsa->len = sizeof(struct sockaddr_in);
+ {
+ fd = xsocket(AF_INET, SOCK_STREAM, 0);
+ }
+ lsa = xzalloc(offsetof(len_and_sockaddr, sa) + len);
+ lsa->len = len;
+ lsa->sa.sa_family = family;
+ *lsap = lsa;
return fd;
}
@@ -190,11 +212,7 @@ int create_and_bind_stream_or_die(const char *bindaddr, int port)
/* user specified bind addr dictates family */
fd = xsocket(lsa->sa.sa_family, SOCK_STREAM, 0);
} else {
- lsa = xzalloc(offsetof(len_and_sockaddr, sa) +
- USE_FEATURE_IPV6(sizeof(struct sockaddr_in6))
- SKIP_FEATURE_IPV6(sizeof(struct sockaddr_in))
- );
- fd = xsocket_stream(lsa);
+ fd = xsocket_stream(&lsa);
}
setsockopt_reuseaddr(fd);
xbind(fd, &lsa->sa, lsa->len);