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authorJeremy Hylton <jeremy@alum.mit.edu>2001-02-02 19:55:17 (GMT)
committerJeremy Hylton <jeremy@alum.mit.edu>2001-02-02 19:55:17 (GMT)
commitdbfb66296c81e7828f909ecb2cc14424b59b2995 (patch)
treefc18679a00935cade2236fc3d3a357efe2d7773f /Modules/socketmodule.c
parent96da8b6d88b8deba79760b62a6de29b05622e54d (diff)
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fix a couple last-minute bugs in the raw socket support
Diffstat (limited to 'Modules/socketmodule.c')
-rw-r--r--Modules/socketmodule.c48
1 files changed, 24 insertions, 24 deletions
diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index ca123ad..a9ad1b0 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -37,8 +37,8 @@ Module interface:
- an AF_PACKET socket address is a tuple containing a string
specifying the ethernet interface and an integer specifying
the Ethernet protocol number to be received. For example:
- ("eth0",0x1234). Optional 3rd and 4th elements in the tuple
- specify packet-type and ha-type -- these are ignored by
+ ("eth0",0x1234). Optional 3rd,4th,5th elements in the tuple
+ specify packet-type and ha-type/addr -- these are ignored by
networking code, but accepted since they are returned by the
getsockname() method.
@@ -534,7 +534,7 @@ makeipaddr(struct sockaddr_in *addr)
/*ARGSUSED*/
static PyObject *
-makesockaddr(struct sockaddr *addr, int addrlen)
+makesockaddr(int sockfd, struct sockaddr *addr, int addrlen)
{
if (addrlen == 0) {
/* No address -- may be recvfrom() from known socket */
@@ -575,20 +575,15 @@ makesockaddr(struct sockaddr *addr, int addrlen)
struct sockaddr_ll *a = (struct sockaddr_ll *)addr;
char *ifname = "";
struct ifreq ifr;
- int s;
- /* need a socket on which we can do an ioctl to look
- * up interface name from index, but only if index is
- * non-zero.
- */
- if (a->sll_ifindex
- && ((s = socket(AF_PACKET, SOCK_RAW, 0)) >= 0)) {
+ /* need to look up interface name give index */
+ if (a->sll_ifindex) {
ifr.ifr_ifindex = a->sll_ifindex;
- if (ioctl(s, SIOCGIFNAME, &ifr) == 0)
+ if (ioctl(sockfd, SIOCGIFNAME, &ifr) == 0)
ifname = ifr.ifr_name;
- close(s);
}
- return Py_BuildValue("shbh", ifname, ntohs(a->sll_protocol),
- a->sll_pkttype, a->sll_hatype);
+ return Py_BuildValue("shbhs#", ifname, ntohs(a->sll_protocol),
+ a->sll_pkttype, a->sll_hatype,
+ a->sll_addr, a->sll_halen);
}
#endif
@@ -612,7 +607,8 @@ makesockaddr(struct sockaddr *addr, int addrlen)
through len_ret. */
static int
-getsockaddrarg(PySocketSockObject *s, PyObject *args, struct sockaddr **addr_ret, int *len_ret)
+getsockaddrarg(PySocketSockObject *s, PyObject *args,
+ struct sockaddr **addr_ret, int *len_ret)
{
switch (s->sock_family) {
@@ -671,14 +667,17 @@ getsockaddrarg(PySocketSockObject *s, PyObject *args, struct sockaddr **addr_ret
int protoNumber;
int hatype = 0;
int pkttype = 0;
+ char *haddr;
- if (!PyArg_ParseTuple(args, "si|ii", &interfaceName,
- &protoNumber, &pkttype, &hatype))
+ if (!PyArg_ParseTuple(args, "si|iis", &interfaceName,
+ &protoNumber, &pkttype, &hatype, &haddr))
return 0;
strncpy(ifr.ifr_name, interfaceName, sizeof(ifr.ifr_name));
ifr.ifr_name[(sizeof(ifr.ifr_name))-1] = '\0';
- if (ioctl(s->sock_fd, SIOCGIFINDEX, &ifr))
+ if (ioctl(s->sock_fd, SIOCGIFINDEX, &ifr) < 0) {
+ PyErr_SetFromErrno(PySocket_Error);
return 0;
+ }
addr = &(s->sock_addr.ll);
addr->sll_family = AF_PACKET;
addr->sll_protocol = htons((short)protoNumber);
@@ -779,11 +778,12 @@ PySocketSock_accept(PySocketSockObject *s, PyObject *args)
SOCKETCLOSE(newfd);
goto finally;
}
- if (!(addr = makesockaddr((struct sockaddr *) addrbuf, addrlen)))
+ addr = makesockaddr(s->sock_fd, (struct sockaddr *)addrbuf,
+ addrlen);
+ if (addr == NULL)
goto finally;
- if (!(res = Py_BuildValue("OO", sock, addr)))
- goto finally;
+ res = Py_BuildValue("OO", sock, addr);
finally:
Py_XDECREF(sock);
@@ -1128,7 +1128,7 @@ PySocketSock_getsockname(PySocketSockObject *s, PyObject *args)
Py_END_ALLOW_THREADS
if (res < 0)
return PySocket_Err();
- return makesockaddr((struct sockaddr *) addrbuf, addrlen);
+ return makesockaddr(s->sock_fd, (struct sockaddr *) addrbuf, addrlen);
}
static char getsockname_doc[] =
@@ -1157,7 +1157,7 @@ PySocketSock_getpeername(PySocketSockObject *s, PyObject *args)
Py_END_ALLOW_THREADS
if (res < 0)
return PySocket_Err();
- return makesockaddr((struct sockaddr *) addrbuf, addrlen);
+ return makesockaddr(s->sock_fd, (struct sockaddr *) addrbuf, addrlen);
}
static char getpeername_doc[] =
@@ -1319,7 +1319,7 @@ PySocketSock_recvfrom(PySocketSockObject *s, PyObject *args)
if (n != len && _PyString_Resize(&buf, n) < 0)
return NULL;
- if (!(addr = makesockaddr((struct sockaddr *)addrbuf, addrlen)))
+ if (!(addr = makesockaddr(s->sock_fd, (struct sockaddr *)addrbuf, addrlen)))
goto finally;
ret = Py_BuildValue("OO", buf, addr);