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* nis/nis_callback.c (__nis_create_callback): Calls to

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svcudp_bufcreate and svctcp_create can fail.  Free ->xprt if
	asprintf call fails.
This commit is contained in:
Ulrich Drepper 2006-05-19 08:23:43 +00:00
parent 429bb1833e
commit 882bfe73fd
2 changed files with 17 additions and 3 deletions
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4
ChangeLog
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@ -1,5 +1,9 @@
2006-05-19 Ulrich Drepper <drepper@redhat.com>
* nis/nis_callback.c (__nis_create_callback): Calls to
svcudp_bufcreate and svctcp_create can fail. Free ->xprt if
asprintf call fails.
* sysdeps/unix/sysv/linux/ifaddrs.c (__netlink_sendreq): Make sure
no uninitialized memory is passed to sendto.

16
nis/nis_callback.c
View File

@ -276,6 +276,7 @@ __nis_create_callback (int (*callback) (const_nis_name, const nis_object *,
struct sockaddr_in sin;
socklen_t len = sizeof (struct sockaddr_in);
unsigned short port;
int nomsg = 0;
cb = (struct nis_cb *) calloc (1,
sizeof (struct nis_cb) + sizeof (nis_server));
@ -324,8 +325,14 @@ __nis_create_callback (int (*callback) (const_nis_name, const nis_object *,
cb->serv->ep.ep_val[0].proto = strdup ((flags & USE_DGRAM) ? "udp" : "tcp");
if (__builtin_expect (cb->serv->ep.ep_val[0].proto == NULL, 0))
goto failed;
cb->xprt = (flags & USE_DGRAM) ? svcudp_bufcreate (sock, 100, 8192) :
svctcp_create (sock, 100, 8192);
cb->xprt = ((flags & USE_DGRAM)
? svcudp_bufcreate (sock, 100, 8192)
: svctcp_create (sock, 100, 8192));
if (cb->xprt == NULL)
{
nomsg = 1;
goto failed;
}
cb->sock = cb->xprt->xp_sock;
if (!svc_register (cb->xprt, CB_PROG, CB_VERS, cb_prog_1, 0))
{
@ -359,11 +366,14 @@ __nis_create_callback (int (*callback) (const_nis_name, const nis_object *,
failed:
if (cb)
{
if (cb->xprt)
svc_destroy (cb->xprt);
if (cb->serv)
xdr_free ((xdrproc_t) _xdr_nis_server, (char *) cb->serv);
free (cb);
}
syslog (LOG_ERR, "NIS+: out of memory allocating callback");
if (!nomsg)
syslog (LOG_ERR, "NIS+: out of memory allocating callback");
return NULL;
}