void
ExecExitScript()
{
char *file, *paths;
paths = wstrconcat(wusergnusteppath(), "/Library/WindowMaker");
paths = wstrappend(paths, ":"DEF_CONFIG_PATHS);
file = wfindfile(paths, DEF_EXIT_SCRIPT);
wfree(paths);
if (file) {
if (system(file) != 0) {
wsyserror(_("%s:could not execute exit script"), file);
}
#if 0
if (fork()==0) {
execl("/bin/sh", "/bin/sh", "-c", file, NULL);
wsyserror(_("%s:could not execute exit script"), file);
exit(1);
}
#endif
wfree(file);
}
}
void
Restart(char *manager, Bool abortOnFailure)
{
char *prog=NULL;
char *argv[MAX_RESTART_ARGS];
int i;
if (manager && manager[0]!=0) {
prog = argv[0] = strtok(manager, " ");
for (i=1; i<MAX_RESTART_ARGS; i++) {
argv[i]=strtok(NULL, " ");
if (argv[i]==NULL) {
break;
}
}
}
if (dpy) {
#ifdef XSMP_ENABLED
wSessionDisconnectManager();
#endif
XCloseDisplay(dpy);
dpy = NULL;
}
if (!prog) {
execvp(Arguments[0], Arguments);
wfatal(_("failed to restart Window Maker."));
} else {
execvp(prog, argv);
wsyserror(_("could not exec %s"), prog);
}
if (abortOnFailure)
exit(7);
}
void
ExecuteShellCommand(WScreen *scr, char *command)
{
static char *shell = NULL;
pid_t pid;
/*
* This have a problem: if the shell is tcsh (not sure about others)
* and ~/.tcshrc have /bin/stty erase ^H somewhere on it, the shell
* will block and the command will not be executed.
if (!shell) {
shell = getenv("SHELL");
if (!shell)
shell = "/bin/sh";
}
*/
shell = "/bin/sh";
pid = fork();
if (pid==0) {
SetupEnvironment(scr);
#ifdef HAVE_SETSID
setsid();
#endif
execl(shell, shell, "-c", command, NULL);
wsyserror("could not execute %s -c %s", shell, command);
Exit(-1);
} else if (pid < 0) {
wsyserror("cannot fork a new process");
} else {
_tuple *data = wmalloc(sizeof(_tuple));
data->scr = scr;
data->command = wstrdup(command);
wAddDeathHandler(pid, (WDeathHandler*)shellCommandHandler, data);
}
}
static char*
getuserhomedir(char *username)
{
struct passwd *user;
user = getpwnam(username);
if (!user) {
wsyserror(_("could not get password entry for user %s"), username);
return NULL;
}
if (!user->pw_dir) {
return "/";
} else {
return user->pw_dir;
}
}
char*
wgethomedir()
{
char *home = getenv("HOME");
struct passwd *user;
if (home)
return home;
user = getpwuid(getuid());
if (!user) {
wsyserror(_("could not get password entry for UID %i"), getuid());
return "/";
}
if (!user->pw_dir) {
return "/";
} else {
return user->pw_dir;
}
}
static char*
username()
{
char *tmp;
tmp = getlogin();
if (!tmp) {
struct passwd *user;
user = getpwuid(getuid());
if (!user) {
wsyserror(_("could not get password entry for UID %i"), getuid());
return NULL;
}
if (!user->pw_name) {
return NULL;
} else {
return user->pw_name;
}
}
return tmp;
}
int showCrashDialog(int sig)
{
int crashAction;
dpy = XOpenDisplay(NULL);
if (dpy) {
/* XXX TODO make sure that window states are saved and restored via netwm */
XGrabServer(dpy);
crashAction = wShowCrashingDialogPanel(sig);
XCloseDisplay(dpy);
dpy = NULL;
} else {
wsyserror(_("cannot open connection for crashing dialog panel. Aborting."));
crashAction = WMAbort;
}
if (crashAction == WMStartAlternate)
{
int i;
wmessage(_("trying to start alternate window manager..."));
for (i=0; i<WMGetArrayItemCount(wPreferences.fallbackWMs); i++) {
Restart(WMGetFromArray(wPreferences.fallbackWMs, i), False);
}
wfatal(_("failed to start alternate window manager. Aborting."));
return 0;
}
else if (crashAction == WMAbort)
return 0;
else
return 1;
}
static pid_t
downloadFile(WMScreen *scr, _Panel *panel, char *file)
{
pid_t pid;
pid = fork();
if (pid < 0) {
wsyserror("could not fork() process");
WMRunAlertPanel(scr, GetWindow(panel), _("Error"),
"Could not start download. fork() failed",
_("OK"), NULL, NULL);
return -1;
}
if (pid != 0) {
return pid;
}
close(ConnectionNumber(WMScreenDisplay(scr)));
exit(1);
}
int MonitorLoop(int argc, char **argv)
{
pid_t pid, exited;
char **child_argv= wmalloc(sizeof(char*)*(argc+2));
int i, status;
time_t last_start;
Bool error = False;
for (i= 0; i < argc; i++)
child_argv[i]= argv[i];
child_argv[i++]= "--for-real";
child_argv[i]= NULL;
for (;;)
{
last_start= time(NULL);
/* Start Window Maker */
pid = fork();
if (pid == 0)
{
execvp(child_argv[0], child_argv);
wsyserror(_("Error respawning Window Maker"));
exit(1);
}
else if (pid < 0)
{
wsyserror(_("Error respawning Window Maker"));
exit(1);
}
do {
if ((exited=waitpid(-1, &status, 0)) < 0)
{
wsyserror(_("Error during monitoring of Window Maker process."));
error = True;
break;
}
} while (exited != pid);
if (error)
break;
child_argv[argc]= "--for-real-";
/* Check if the wmaker process exited due to a crash */
if (WIFSIGNALED(status) &&
(WTERMSIG(status) == SIGSEGV ||
WTERMSIG(status) == SIGBUS ||
WTERMSIG(status) == SIGILL ||
WTERMSIG(status) == SIGABRT ||
WTERMSIG(status) == SIGFPE))
{
/* If so, we check when was the last restart.
* If it was less than 3s ago, it's a bad sign, so we show
* the crash panel and ask the user what to do */
if (time(NULL) - last_start < 3)
{
if (showCrashDialog(WTERMSIG(status)) == 0) {
return 1;
}
}
wwarning(_("Window Maker exited due to a crash (signal %i) and will be restarted."),
WTERMSIG(status));
}
else
break;
}
return 0;
}
char*
wexpandpath(char *path)
{
char *origpath = path;
char buffer2[PATH_MAX+2];
char buffer[PATH_MAX+2];
int i;
memset(buffer, 0, PATH_MAX+2);
if (*path=='~') {
char *home;
path++;
if (*path=='/' || *path==0) {
home = wgethomedir();
if (strlen(home) > PATH_MAX)
goto error;
strcat(buffer, home);
} else {
int j;
j = 0;
while (*path!=0 && *path!='/') {
if (j > PATH_MAX)
goto error;
buffer2[j++] = *path;
buffer2[j] = 0;
path++;
}
home = getuserhomedir(buffer2);
if (!home || strlen(home) > PATH_MAX)
goto error;
strcat(buffer, home);
}
}
i = strlen(buffer);
while (*path!=0 && i <= PATH_MAX) {
char *tmp;
if (*path=='$') {
int j = 0;
path++;
/* expand $(HOME) or $HOME style environment variables */
if (*path=='(') {
path++;
while (*path!=0 && *path!=')') {
if (j > PATH_MAX)
goto error;
buffer2[j++] = *(path++);
buffer2[j] = 0;
}
if (*path==')') {
path++;
tmp = getenv(buffer2);
} else {
tmp = NULL;
}
if (!tmp) {
if ((i += strlen(buffer2)+2) > PATH_MAX)
goto error;
buffer[i] = 0;
strcat(buffer, "$(");
strcat(buffer, buffer2);
if (*(path-1)==')') {
if (++i > PATH_MAX)
goto error;
strcat(buffer, ")");
}
} else {
if ((i += strlen(tmp)) > PATH_MAX)
goto error;
strcat(buffer, tmp);
}
} else {
while (*path!=0 && *path!='/') {
if (j > PATH_MAX)
goto error;
buffer2[j++] = *(path++);
buffer2[j] = 0;
}
tmp = getenv(buffer2);
if (!tmp) {
if ((i += strlen(buffer2)+1) > PATH_MAX)
goto error;
strcat(buffer, "$");
strcat(buffer, buffer2);
} else {
if ((i += strlen(tmp)) > PATH_MAX)
goto error;
strcat(buffer, tmp);
}
}
} else {
buffer[i++] = *path;
path++;
}
}
if (*path!=0)
goto error;
return wstrdup(buffer);
error:
errno = ENAMETOOLONG;
wsyserror(_("could not expand %s"), origpath);
/* FIXME: too many functions handle a return value of NULL incorrectly */
exit(1);
}
