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--- dbus/dbus-sysdeps-unix.c.orig Thu Sep 14 01:07:11 2006
+++ dbus/dbus-sysdeps-unix.c Sat Oct 7 12:23:40 2006
@@ -719,16 +719,16 @@ write_credentials_byte (int
{
int bytes_written;
char buf[1] = { '\0' };
-#if defined(HAVE_CMSGCRED) && !defined(LOCAL_CREDS)
- struct {
+#if defined(HAVE_CMSGCRED)
+ union {
struct cmsghdr hdr;
- struct cmsgcred cred;
+ char cred[CMSG_SPACE (sizeof (struct cmsgcred))];
} cmsg;
struct iovec iov;
struct msghdr msg;
#endif
-#if defined(HAVE_CMSGCRED) && !defined(LOCAL_CREDS)
+#if defined(HAVE_CMSGCRED)
iov.iov_base = buf;
iov.iov_len = 1;
@@ -736,10 +736,10 @@ write_credentials_byte (int
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
- msg.msg_control = &cmsg;
- msg.msg_controllen = sizeof (cmsg);
+ msg.msg_control = (caddr_t) &cmsg;
+ msg.msg_controllen = CMSG_SPACE (sizeof (struct cmsgcred));
memset (&cmsg, 0, sizeof (cmsg));
- cmsg.hdr.cmsg_len = sizeof (cmsg);
+ cmsg.hdr.cmsg_len = CMSG_LEN (sizeof (struct cmsgcred));
cmsg.hdr.cmsg_level = SOL_SOCKET;
cmsg.hdr.cmsg_type = SCM_CREDS;
#endif
@@ -748,7 +748,7 @@ write_credentials_byte (int
again:
-#if defined(HAVE_CMSGCRED) && !defined(LOCAL_CREDS)
+#if defined(HAVE_CMSGCRED)
bytes_written = sendmsg (server_fd, &msg, 0);
#else
bytes_written = write (server_fd, buf, 1);
@@ -806,9 +806,10 @@ _dbus_read_credentials_unix_socket (int
char buf;
#ifdef HAVE_CMSGCRED
- struct {
+ struct cmsgcred *cred;
+ union {
struct cmsghdr hdr;
- struct cmsgcred cred;
+ char cred[CMSG_SPACE (sizeof (struct cmsgcred))];
} cmsg;
#elif defined(LOCAL_CREDS)
@@ -845,8 +846,8 @@ _dbus_read_credentials_unix_socket (int
#if defined(HAVE_CMSGCRED) || defined(LOCAL_CREDS)
memset (&cmsg, 0, sizeof (cmsg));
- msg.msg_control = &cmsg;
- msg.msg_controllen = sizeof (cmsg);
+ msg.msg_control = (caddr_t) &cmsg;
+ msg.msg_controllen = CMSG_SPACE (sizeof (struct cmsgcred));
#endif
again:
@@ -869,7 +870,8 @@ _dbus_read_credentials_unix_socket (int
}
#if defined(HAVE_CMSGCRED) || defined(LOCAL_CREDS)
- if (cmsg.hdr.cmsg_len < sizeof (cmsg) || cmsg.hdr.cmsg_type != SCM_CREDS)
+ if (cmsg.hdr.cmsg_len < CMSG_LEN (sizeof (struct cmsgcred))
+ || cmsg.hdr.cmsg_type != SCM_CREDS)
{
dbus_set_error (error, DBUS_ERROR_FAILED,
"Message from recvmsg() was not SCM_CREDS");
@@ -897,9 +899,10 @@ _dbus_read_credentials_unix_socket (int
cr_len, (int) sizeof (cr), _dbus_strerror (errno));
}
#elif defined(HAVE_CMSGCRED)
- credentials->pid = cmsg.cred.cmcred_pid;
- credentials->uid = cmsg.cred.cmcred_euid;
- credentials->gid = cmsg.cred.cmcred_groups[0];
+ cred = (struct cmsgcred *) CMSG_DATA (&cmsg);
+ credentials->pid = cred->cmcred_pid;
+ credentials->uid = cred->cmcred_euid;
+ credentials->gid = cred->cmcred_groups[0];
#elif defined(LOCAL_CREDS)
credentials->pid = DBUS_PID_UNSET;
credentials->uid = cmsg.cred.sc_uid;
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