/* generate all startup events of a given process */
void generate_startup_debug_events( struct process *process, void *entry )
{
struct list *ptr;
struct thread *thread, *first_thread = get_process_first_thread( process );
/* generate creation events */
LIST_FOR_EACH_ENTRY( thread, &process->thread_list, struct thread, proc_entry )
{
if (thread == first_thread)
generate_debug_event( thread, CREATE_PROCESS_DEBUG_EVENT, entry );
else
generate_debug_event( thread, CREATE_THREAD_DEBUG_EVENT, NULL );
}
/* generate dll events (in loading order, i.e. reverse list order) */
ptr = list_tail( &process->dlls );
while (ptr)
{
struct process_dll *dll = LIST_ENTRY( ptr, struct process_dll, entry );
generate_debug_event( first_thread, LOAD_DLL_DEBUG_EVENT, dll );
ptr = list_prev( &process->dlls, ptr );
}
}
/* receive a file descriptor on the process socket */
int receive_fd( struct process *process )
{
struct iovec vec;
struct send_fd data;
struct msghdr msghdr;
int fd = -1, ret;
#ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
msghdr.msg_accrightslen = sizeof(int);
msghdr.msg_accrights = (void *)&fd;
#else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
char cmsg_buffer[256];
msghdr.msg_control = cmsg_buffer;
msghdr.msg_controllen = sizeof(cmsg_buffer);
msghdr.msg_flags = 0;
#endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
msghdr.msg_name = NULL;
msghdr.msg_namelen = 0;
msghdr.msg_iov = &vec;
msghdr.msg_iovlen = 1;
vec.iov_base = (void *)&data;
vec.iov_len = sizeof(data);
ret = recvmsg( get_unix_fd( process->msg_fd ), &msghdr, 0 );
#ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
if (ret > 0)
{
struct cmsghdr *cmsg;
for (cmsg = CMSG_FIRSTHDR( &msghdr ); cmsg; cmsg = CMSG_NXTHDR( &msghdr, cmsg ))
{
if (cmsg->cmsg_level != SOL_SOCKET) continue;
if (cmsg->cmsg_type == SCM_RIGHTS) fd = *(int *)CMSG_DATA(cmsg);
}
}
#endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
if (ret == sizeof(data))
{
struct thread *thread;
if (data.tid) thread = get_thread_from_id( data.tid );
else thread = (struct thread *)grab_object( get_process_first_thread( process ));
if (!thread || thread->process != process || thread->state == TERMINATED)
{
if (debug_level)
fprintf( stderr, "%04x: *fd* %d <- %d bad thread id\n",
data.tid, data.fd, fd );
close( fd );
}
else
{
if (debug_level)
fprintf( stderr, "%04x: *fd* %d <- %d\n",
thread->id, data.fd, fd );
thread_add_inflight_fd( thread, data.fd, fd );
}
if (thread) release_object( thread );
return 0;
}
if (!ret)
{
kill_process( process, 0 );
}
else if (ret > 0)
{
fprintf( stderr, "Protocol error: process %04x: partial recvmsg %d for fd\n",
process->id, ret );
if (fd != -1) close( fd );
kill_process( process, 1 );
}
else
{
if (errno != EWOULDBLOCK && errno != EAGAIN)
{
fprintf( stderr, "Protocol error: process %04x: ", process->id );
perror( "recvmsg" );
kill_process( process, 1 );
}
}
return -1;
}
/* receive a file descriptor on the process socket */
int receive_fd( struct process *process )
{
struct send_fd data;
int fd, ret;
#ifdef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
msghdr.msg_accrightslen = sizeof(int);
msghdr.msg_accrights = (void *)&fd;
#else /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
msghdr.msg_control = &cmsg;
msghdr.msg_controllen = sizeof(cmsg.header) + sizeof(fd);
cmsg.fd = -1;
#endif /* HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS */
myiovec.iov_base = (void *)&data;
myiovec.iov_len = sizeof(data);
ret = recvmsg( get_unix_fd( process->msg_fd ), &msghdr, 0 );
#ifndef HAVE_STRUCT_MSGHDR_MSG_ACCRIGHTS
fd = cmsg.fd;
#endif
if (ret == sizeof(data))
{
struct thread *thread;
if (data.tid) thread = get_thread_from_id( data.tid );
else thread = (struct thread *)grab_object( get_process_first_thread( process ));
if (!thread || thread->process != process || thread->state == TERMINATED)
{
if (debug_level)
fprintf( stderr, "%04x: *fd* %d <- %d bad thread id\n",
data.tid, data.fd, fd );
close( fd );
}
else
{
if (debug_level)
fprintf( stderr, "%04x: *fd* %d <- %d\n",
thread->id, data.fd, fd );
thread_add_inflight_fd( thread, data.fd, fd );
}
if (thread) release_object( thread );
return 0;
}
if (!ret)
{
kill_process( process, NULL, 0 );
}
else if (ret > 0)
{
fprintf( stderr, "Protocol error: process %04x: partial recvmsg %d for fd\n",
process->id, ret );
kill_process( process, NULL, 1 );
}
else
{
if (errno != EWOULDBLOCK && errno != EAGAIN)
{
fprintf( stderr, "Protocol error: process %04x: ", process->id );
perror( "recvmsg" );
kill_process( process, NULL, 1 );
}
}
return -1;
}
