diff options
| -rw-r--r-- | nx-X11/programs/Xserver/dix/globals.c | 1 | ||||
| -rw-r--r-- | nx-X11/programs/Xserver/hw/nxagent/man/nxagent.1 | 7 | ||||
| -rw-r--r-- | nx-X11/programs/Xserver/include/opaque.h | 1 | ||||
| -rw-r--r-- | nx-X11/programs/Xserver/os/connection.c | 76 | ||||
| -rw-r--r-- | nx-X11/programs/Xserver/os/utils.c | 10 |
5 files changed, 69 insertions, 26 deletions
diff --git a/nx-X11/programs/Xserver/dix/globals.c b/nx-X11/programs/Xserver/dix/globals.c index a0af50fa8..5a3e22c26 100644 --- a/nx-X11/programs/Xserver/dix/globals.c +++ b/nx-X11/programs/Xserver/dix/globals.c @@ -149,6 +149,7 @@ int defaultColorVisualClass = -1; int monitorResolution = 0; char *display; +int displayfd; CARD32 TimeOutValue = DEFAULT_TIMEOUT * MILLI_PER_SECOND; int argcGlobal; diff --git a/nx-X11/programs/Xserver/hw/nxagent/man/nxagent.1 b/nx-X11/programs/Xserver/hw/nxagent/man/nxagent.1 index af5fc88f8..66f25b438 100644 --- a/nx-X11/programs/Xserver/hw/nxagent/man/nxagent.1 +++ b/nx-X11/programs/Xserver/hw/nxagent/man/nxagent.1 @@ -178,6 +178,13 @@ different from the user's real uid. .B \-core causes the server to generate a core dump on fatal errors. .TP 8 +.B \-displayfd \fIfd\fP +specifies a file descriptor in the launching process. Rather than specify +a display number, the X server will attempt to listen on successively higher +display numbers, and upon finding a free one, will write the port number back +on this file descriptor as a newline-terminated string. The \-pn option is +ignored when using \-displayfd. +.TP 8 .B \-deferglyphs \fIwhichfonts\fP specifies the types of fonts for which the server should attempt to use deferred glyph loading. \fIwhichfonts\fP can be all (all fonts), diff --git a/nx-X11/programs/Xserver/include/opaque.h b/nx-X11/programs/Xserver/include/opaque.h index bd286ba12..8f98bf1be 100644 --- a/nx-X11/programs/Xserver/include/opaque.h +++ b/nx-X11/programs/Xserver/include/opaque.h @@ -52,6 +52,7 @@ extern int defaultScreenSaverAllowExposures; extern int argcGlobal; extern char **argvGlobal; extern char *display; +extern int displayfd; extern int defaultBackingStore; extern Bool disableBackingStore; diff --git a/nx-X11/programs/Xserver/os/connection.c b/nx-X11/programs/Xserver/os/connection.c index 2fa8ad12d..6dc0ff64d 100644 --- a/nx-X11/programs/Xserver/os/connection.c +++ b/nx-X11/programs/Xserver/os/connection.c @@ -138,6 +138,7 @@ int NumNotifyWriteFd; /* Number of NotifyFd members with write set */ Bool NewOutputPending; /* not yet attempted to write some new output */ Bool AnyWritesPending; /* true if some client blocked on write or NotifyFd with write */ Bool RunFromSmartParent; /* send SIGUSR1 to parent process */ +static char dynamic_display[7]; /* display name */ Bool PartialNetwork; /* continue even if unable to bind all addrs */ static Pid_t ParentProcess; @@ -359,6 +360,10 @@ void NotifyParentProcess(void) { #if !defined(WIN32) + if (dynamic_display[0]) { + write(displayfd, dynamic_display, strlen(dynamic_display)); + close(displayfd); + } if (RunFromSmartParent) { if (ParentProcess > 1) { kill (ParentProcess, SIGUSR1); @@ -367,6 +372,18 @@ NotifyParentProcess(void) #endif } +static Bool +TryCreateSocket(int num, int *partial) +{ + char port[20]; + + snprintf(port, sizeof(port), "%d", num); + + return (_XSERVTransMakeAllCOTSServerListeners(port, partial, + &ListenTransCount, + &ListenTransConns) >= 0); +} + /***************** * CreateWellKnownSockets * At initialization, create the sockets to listen on for new clients. @@ -377,7 +394,6 @@ CreateWellKnownSockets(void) { int i; int partial; - char port[20]; FD_ZERO(&AllSockets); FD_ZERO(&AllClients); @@ -392,33 +408,41 @@ CreateWellKnownSockets(void) FD_ZERO (&WellKnownConnections); - sprintf (port, "%d", atoi (display)); - - if ((_XSERVTransMakeAllCOTSServerListeners (port, &partial, - &ListenTransCount, &ListenTransConns) >= 0) && - (ListenTransCount >= 1)) - { - if (!PartialNetwork && partial) - { - FatalError ("Failed to establish all listening sockets"); - } - else - { - ListenTransFds = (int *) malloc (ListenTransCount * sizeof (int)); - - for (i = 0; i < ListenTransCount; i++) - { - int fd = _XSERVTransGetConnectionNumber (ListenTransConns[i]); - - ListenTransFds[i] = fd; - FD_SET (fd, &WellKnownConnections); - - if (!_XSERVTransIsLocal (ListenTransConns[i])) - { - DefineSelf (fd); - } + /* display is initialized to "0" by main(). It is then set to the display + * number if specified on the command line, or to NULL when the -displayfd + * option is used. */ + if (display) { + if (TryCreateSocket(atoi(display), &partial) && + ListenTransCount >= 1) + if (!PartialNetwork && partial) + FatalError ("Failed to establish all listening sockets"); + } + else { /* -displayfd */ + Bool found = 0; + for (i = 0; i < 65535 - X_TCP_PORT; i++) { + if (TryCreateSocket(i, &partial) && !partial) { + found = 1; + break; } + else + CloseWellKnownConnections(); } + if (!found) + FatalError("Failed to find a socket to listen on"); + snprintf(dynamic_display, sizeof(dynamic_display), "%d", i); + display = dynamic_display; + } + + ListenTransFds = malloc(ListenTransCount * sizeof (int)); + + for (i = 0; i < ListenTransCount; i++) { + int fd = _XSERVTransGetConnectionNumber(ListenTransConns[i]); + + ListenTransFds[i] = fd; + FD_SET(fd, &WellKnownConnections); + + if (!_XSERVTransIsLocal(ListenTransConns[i])) + DefineSelf (fd); } if (!XFD_ANYSET (&WellKnownConnections)) diff --git a/nx-X11/programs/Xserver/os/utils.c b/nx-X11/programs/Xserver/os/utils.c index 25cbb1e87..929549168 100644 --- a/nx-X11/programs/Xserver/os/utils.c +++ b/nx-X11/programs/Xserver/os/utils.c @@ -780,6 +780,16 @@ ProcessCommandLine(int argc, char *argv[]) else UseMsg(); } + else if (strcmp(argv[i], "-displayfd") == 0) { + if (++i < argc) { + displayfd = atoi(argv[i]); + display = NULL; + nolock = TRUE; + } + else + UseMsg(); + } + #ifdef DPMSExtension else if ( strcmp( argv[i], "dpms") == 0) DPMSEnabledSwitch = TRUE; |