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getLocalAddress(): return 127.0.0.1 if the hostname doesn't resolve.

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This code already does this if IPv6 support is compiled in. It
was dereferencing a NULL pointer in the IPv4 only case.
This commit is contained in:
matthieu 2009-01-30 21:46:35 +00:00
parent fef4aae88f
commit 8fd38b9171
1 changed files with 11 additions and 2 deletions
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13
app/xdm/access.c
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@ -139,8 +139,17 @@ getLocalAddress (void)
struct hostent *hostent;
hostent = gethostbyname (localHostname());
XdmcpAllocARRAY8 (&localAddress, hostent->h_length);
memmove( localAddress.data, hostent->h_addr, hostent->h_length);
if (hostent != NULL) {
XdmcpAllocARRAY8 (&localAddress, hostent->h_length);
memmove(localAddress.data, hostent->h_addr, hostent->h_length);
} else {
/* Assume 127.0.0.1 */
XdmcpAllocARRAY8 (&localAddress, 4);
localAddress.data[0] = 127;
localAddress.data[1] = 0;
localAddress.data[2] = 0;
localAddress.data[3] = 1;
}
#endif
}