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(handle_tcp): always do getpeername, we can't trust recvfrom to return

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anything sensible


git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@6421 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Assar Westerlund
1999-07-05 19:07:05 +00:00
parent 0117755210
commit faca5a7f19
1 changed files with 10 additions and 7 deletions
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17
kdc/connect.c
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@@ -656,17 +656,20 @@ handle_tcp(struct descr *d, int index, int min_free)
}
sa = (struct sockaddr *)sa_buf;
from_len = sa_size;
n = recvfrom(d[index].s, buf, sizeof(buf), 0,
sa, &from_len);
/*
* We can't trust recvfrom to return an address so we always call
* getpeername.
*/
n = recvfrom(d[index].s, buf, sizeof(buf), 0, NULL, NULL);
if(n < 0){
krb5_warn(context, errno, "recvfrom");
goto out;
}
/* sometimes recvfrom doesn't return an address */
if(from_len == 0) {
from_len = sa_size;
getpeername(d[index].s, sa, &from_len);
from_len = sa_size;
if (getpeername(d[index].s, sa, &from_len) < 0) {
krb5_warn(context, errno, "getpeername");
goto out;
}
addr_to_string(sa, from_len, addr, sizeof(addr));
if (grow_descr (&d[index], n))