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--- dbus/dbus-sysdeps.c.orig Tue Nov 22 15:37:00 2005
+++ dbus/dbus-sysdeps.c Sat Dec 31 13:08:04 2005
@@ -781,16 +781,16 @@ 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;
@@ -798,10 +798,10 @@ 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
@@ -810,7 +810,7 @@ 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);
@@ -868,9 +868,10 @@ _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;
#endif
@@ -886,7 +887,7 @@ _dbus_read_credentials_unix_socket (int
_dbus_credentials_clear (credentials);
-#if defined(LOCAL_CREDS) && defined(HAVE_CMSGCRED)
+#if defined(LOCAL_CREDS) && !defined(HAVE_CMSGCRED)
/* Set the socket to receive credentials on the next message */
{
int on = 1;
@@ -907,8 +908,8 @@ _dbus_read_credentials_unix_socket (int
#ifdef HAVE_CMSGCRED
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:
@@ -931,7 +932,8 @@ _dbus_read_credentials_unix_socket (int
}
#ifdef HAVE_CMSGCRED
- 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");
@@ -959,9 +961,10 @@ _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(HAVE_GETPEEREID)
uid_t euid;
gid_t egid;
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