/*
- * "$Id: main.c 7925 2008-09-10 17:47:26Z mike $"
+ * "$Id$"
*
- * Main loop for the CUPS scheduler.
+ * Main loop for the CUPS scheduler.
*
- * Copyright 2007-2011 by Apple Inc.
- * Copyright 1997-2007 by Easy Software Products, all rights reserved.
+ * Copyright 2007-2013 by Apple Inc.
+ * Copyright 1997-2007 by Easy Software Products, all rights reserved.
*
- * These coded instructions, statements, and computer programs are the
- * property of Apple Inc. and are protected by Federal copyright
- * law. Distribution and use rights are outlined in the file "LICENSE.txt"
- * "LICENSE" which should have been included with this file. If this
- * file is missing or damaged, see the license at "http://www.cups.org/".
- *
- * Contents:
- *
- * main() - Main entry for the CUPS scheduler.
- * cupsdAddString() - Copy and add a string to an array.
- * cupsdCheckProcess() - Tell the main loop to check for dead children.
- * cupsdClearString() - Clear a string.
- * cupsdFreeStrings() - Free an array of strings.
- * cupsdHoldSignals() - Hold child and termination signals.
- * cupsdReleaseSignals() - Release signals for delivery.
- * cupsdSetString() - Set a string value.
- * cupsdSetStringf() - Set a formatted string value.
- * launchd_checkin() - Check-in with launchd and collect the listening
- * fds.
- * launchd_checkout() - Update the launchd KeepAlive file as needed.
- * parent_handler() - Catch USR1/CHLD signals...
- * process_children() - Process all dead children...
- * select_timeout() - Calculate the select timeout value.
- * sigchld_handler() - Handle 'child' signals from old processes.
- * sighup_handler() - Handle 'hangup' signals to reconfigure the
- * scheduler.
- * sigterm_handler() - Handle 'terminate' signals that stop the scheduler.
- * usage() - Show scheduler usage.
+ * These coded instructions, statements, and computer programs are the
+ * property of Apple Inc. and are protected by Federal copyright
+ * law. Distribution and use rights are outlined in the file "LICENSE.txt"
+ * "LICENSE" which should have been included with this file. If this
+ * file is missing or damaged, see the license at "http://www.cups.org/".
*/
/*
#if defined(HAVE_MALLOC_H) && defined(HAVE_MALLINFO)
# include <malloc.h>
#endif /* HAVE_MALLOC_H && HAVE_MALLINFO */
+
#ifdef HAVE_NOTIFY_H
# include <notify.h>
#endif /* HAVE_NOTIFY_H */
+#ifdef HAVE_SYS_PARAM_H
+# include <sys/param.h>
+#endif /* HAVE_SYS_PARAM_H */
+
/*
* Local functions...
static void sighup_handler(int sig);
static void sigterm_handler(int sig);
static long select_timeout(int fds);
-static void usage(int status);
+static void usage(int status) __attribute__((noreturn));
/*
cupsd_listener_t *lis; /* Current listener */
time_t current_time, /* Current time */
activity, /* Client activity timer */
- browse_time, /* Next browse send time */
senddoc_time, /* Send-Document time */
expire_time, /* Subscription expire time */
report_time, /* Malloc/client/job report time */
#if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
struct sigaction action; /* Actions for POSIX signals */
#endif /* HAVE_SIGACTION && !HAVE_SIGSET */
-#ifdef __sgi
- cups_file_t *fp; /* Fake lpsched lock file */
- struct stat statbuf; /* Needed for checking lpsched FIFO */
-#endif /* __sgi */
int run_as_child = 0;
/* Needed for background fork/exec */
#ifdef __APPLE__
char *current; /* Current directory */
-
/*
* Allocate a buffer for the current working directory to
* reduce run-time stack usage; this approximates the
UseProfiles = 0;
break;
+ case 's' : /* Set cups-files.conf location */
+ i ++;
+ if (i >= argc)
+ {
+ _cupsLangPuts(stderr, _("cupsd: Expected cups-files.conf "
+ "filename after \"-s\" option."));
+ usage(1);
+ }
+
+ if (argv[i][0] != '/')
+ {
+ /*
+ * Relative filename not allowed...
+ */
+
+ _cupsLangPuts(stderr, _("cupsd: Relative cups-files.conf "
+ "filename not allowed."));
+ usage(1);
+ }
+
+ cupsdSetString(&CupsFilesFile, argv[i]);
+ break;
+
#ifdef __APPLE__
case 'S' : /* Disable system management functions */
fputs("cupsd: -S (disable system management) for internal "
if (!ConfigurationFile)
cupsdSetString(&ConfigurationFile, CUPS_SERVERROOT "/cupsd.conf");
+ if (!CupsFilesFile)
+ {
+ char *filename, /* Copy of cupsd.conf filename */
+ *slash; /* Final slash in cupsd.conf filename */
+ size_t len; /* Size of buffer */
+
+ len = strlen(ConfigurationFile) + 15;
+ if ((filename = malloc(len)) == NULL)
+ {
+ _cupsLangPrintf(stderr,
+ _("cupsd: Unable to get path to "
+ "cups-files.conf file."));
+ return (1);
+ }
+
+ strlcpy(filename, ConfigurationFile, len);
+ if ((slash = strrchr(filename, '/')) == NULL)
+ {
+ _cupsLangPrintf(stderr,
+ _("cupsd: Unable to get path to "
+ "cups-files.conf file."));
+ return (1);
+ }
+
+ strlcpy(slash, "/cups-files.conf", len - (slash - filename));
+ cupsdSetString(&CupsFilesFile, filename);
+ free(filename);
+ }
+
/*
* If the user hasn't specified "-f", run in the background...
*/
}
}
-#ifdef __OpenBSD__
+#if defined(__OpenBSD__) && OpenBSD < 201211
/*
* Call _thread_sys_closefrom() so the child process doesn't reset the
* parent's file descriptors to be blocking. This is a workaround for a
- * limitation of userland libpthread on OpenBSD.
+ * limitation of userland libpthread on older versions of OpenBSD.
*/
_thread_sys_closefrom(0);
-#endif /* __OpenBSD__ */
+#endif /* __OpenBSD__ && OpenBSD < 201211 */
/*
* Since CoreFoundation and DBUS both create fork-unsafe data on execution of
*/
if (!cupsdReadConfiguration())
- {
- if (TestConfigFile)
- printf("%s contains errors\n", ConfigurationFile);
- else
- syslog(LOG_LPR, "Unable to read configuration file \'%s\' - exiting!",
- ConfigurationFile);
return (1);
- }
else if (TestConfigFile)
{
- printf("%s is OK\n", ConfigurationFile);
+ printf("\"%s\" is OK.\n", CupsFilesFile);
+ printf("\"%s\" is OK.\n", ConfigurationFile);
return (0);
}
signal(SIGTERM, sigterm_handler);
#endif /* HAVE_SIGSET */
-#ifdef __sgi
- /*
- * Try to create a fake lpsched lock file if one is not already there.
- * Some Adobe applications need it under IRIX in order to enable
- * printing...
- */
-
- if ((fp = cupsFileOpen("/var/spool/lp/SCHEDLOCK", "w")) == NULL)
- {
- syslog(LOG_LPR, "Unable to create fake lpsched lock file "
- "\"/var/spool/lp/SCHEDLOCK\"\' - %s!",
- strerror(errno));
- }
- else
- {
- fchmod(cupsFileNumber(fp), 0644);
- fchown(cupsFileNumber(fp), User, Group);
-
- cupsFileClose(fp);
- }
-#endif /* __sgi */
-
/*
* Initialize authentication certificates...
*/
*/
current_time = time(NULL);
- browse_time = current_time;
event_time = current_time;
expire_time = current_time;
fds = 1;
for (con = (cupsd_client_t *)cupsArrayFirst(Clients);
con;
con = (cupsd_client_t *)cupsArrayNext(Clients))
- if (con->http.state == HTTP_WAITING)
+ if (httpGetState(con->http) == HTTP_WAITING)
cupsdCloseClient(con);
else
- con->http.keep_alive = HTTP_KEEPALIVE_OFF;
+ con->http->keep_alive = HTTP_KEEPALIVE_OFF;
cupsdPauseListening();
}
* inactivity...
*/
- if (timeout == 86400 && Launchd && LaunchdTimeout && !NumPolled &&
+ if (timeout == 86400 && Launchd && LaunchdTimeout &&
!cupsArrayCount(ActiveJobs) &&
- (!Browsing ||
- (!BrowseRemoteProtocols &&
- (!BrowseLocalProtocols || !cupsArrayCount(Printers)))))
+ (!Browsing || !BrowseLocalProtocols || !cupsArrayCount(Printers)))
{
timeout = LaunchdTimeout;
launchd_idle_exit = 1;
* Got an error from select!
*/
-#ifdef HAVE_DNSSD
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
cupsd_printer_t *p; /* Current printer */
-#endif /* HAVE_DNSSD */
+#endif /* HAVE_DNSSD || HAVE_AVAHI */
if (errno == EINTR) /* Just interrupted by a signal */
i ++, con = (cupsd_client_t *)cupsArrayNext(Clients))
cupsdLogMessage(CUPSD_LOG_EMERG,
"Clients[%d] = %d, file = %d, state = %d",
- i, con->http.fd, con->file, con->http.state);
+ i, con->number, con->file, httpGetState(con->http));
for (i = 0, lis = (cupsd_listener_t *)cupsArrayFirst(Listeners);
lis;
i ++, lis = (cupsd_listener_t *)cupsArrayNext(Listeners))
cupsdLogMessage(CUPSD_LOG_EMERG, "Listeners[%d] = %d", i, lis->fd);
- cupsdLogMessage(CUPSD_LOG_EMERG, "BrowseSocket = %d", BrowseSocket);
-
cupsdLogMessage(CUPSD_LOG_EMERG, "CGIPipes[0] = %d", CGIPipes[0]);
#ifdef __APPLE__
job->print_pipes[0], job->print_pipes[1],
job->back_pipes[0], job->back_pipes[1]);
-#ifdef HAVE_DNSSD
+#if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
for (p = (cupsd_printer_t *)cupsArrayFirst(Printers);
p;
p = (cupsd_printer_t *)cupsArrayNext(Printers))
cupsdLogMessage(CUPSD_LOG_EMERG, "printer[%s] reg_name=\"%s\"", p->name,
p->reg_name ? p->reg_name : "(null)");
-#endif /* HAVE_DNSSD */
+#endif /* HAVE_DNSSD || HAVE_AVAHI */
break;
}
expire_time = current_time;
}
- /*
- * Update the browse list as needed...
- */
-
- if (Browsing)
- {
-#ifdef HAVE_LIBSLP
- if ((BrowseRemoteProtocols & BROWSE_SLP) &&
- BrowseSLPRefresh <= current_time)
- cupsdUpdateSLPBrowse();
-#endif /* HAVE_LIBSLP */
-
-#ifdef HAVE_LDAP
- if ((BrowseRemoteProtocols & BROWSE_LDAP) &&
- BrowseLDAPRefresh <= current_time)
- cupsdUpdateLDAPBrowse();
-#endif /* HAVE_LDAP */
- }
-
- if (Browsing && current_time > browse_time)
- {
- cupsdSendBrowseList();
- browse_time = current_time;
- }
-
#ifndef HAVE_AUTHORIZATION_H
/*
* Update the root certificate once every 5 minutes if we have client
*/
cupsdDeleteCert(0);
- cupsdAddCert(0, "root", NULL);
+ cupsdAddCert(0, "root", cupsdDefaultAuthType());
}
#endif /* !HAVE_AUTHORIZATION_H */
* Process pending data in the input buffer...
*/
- if (con->http.used)
+ // TODO: Use httpGetReady()
+ if (con->http->used)
{
cupsdReadClient(con);
continue;
* Check the activity and close old clients...
*/
+ // TODO: Use httpGetActivity()
activity = current_time - Timeout;
- if (con->http.activity < activity && !con->pipe_pid)
+ if (con->http->activity < activity && !con->pipe_pid)
{
cupsdLogMessage(CUPSD_LOG_DEBUG,
"Closing client %d after %d seconds of inactivity...",
- con->http.fd, Timeout);
+ con->number, Timeout);
cupsdCloseClient(con);
continue;
if ((current_time - senddoc_time) >= 10)
{
cupsdCheckJobs();
- cupsdCleanJobs();
senddoc_time = current_time;
}
+ /*
+ * Clean job history...
+ */
+
+ if (JobHistoryUpdate && current_time >= JobHistoryUpdate)
+ cupsdCleanJobs();
+
/*
* Log statistics at most once a minute when in debug mode...
*/
cupsArrayCount(ActiveJobs));
cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: printers=%d",
cupsArrayCount(Printers));
- cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: printers-implicit=%d",
- cupsArrayCount(ImplicitPrinters));
string_count = _cupsStrStatistics(&alloc_bytes, &total_bytes);
cupsdLogMessage(CUPSD_LOG_DEBUG,
cupsdStopSystemMonitor();
#endif /* __APPLE__ */
-#ifdef HAVE_GSSAPI
- /*
- * Free the scheduler's Kerberos context...
- */
-
-# ifdef __APPLE__
- /*
- * If the weak-linked GSSAPI/Kerberos library is not present, don't try
- * to use it...
- */
-
- if (krb5_init_context != NULL)
-# endif /* __APPLE__ */
- if (KerberosContext)
- krb5_free_context(KerberosContext);
-#endif /* HAVE_GSSAPI */
-
-#ifdef __sgi
- /*
- * Remove the fake IRIX lpsched lock file, but only if the existing
- * file is not a FIFO which indicates that the real IRIX lpsched is
- * running...
- */
-
- if (!stat("/var/spool/lp/FIFO", &statbuf))
- if (!S_ISFIFO(statbuf.st_mode))
- unlink("/var/spool/lp/SCHEDLOCK");
-#endif /* __sgi */
-
cupsdStopSelect();
return (!stop_scheduler);
const char *f, /* I - Printf-style format string */
...) /* I - Additional args as needed */
{
- char v[4096]; /* Formatting string value */
+ char v[65536 + 64]; /* Formatting string value */
va_list ap; /* Argument pointer */
char *olds; /* Old string */
lis->fd = fd;
# ifdef HAVE_SSL
- if (_httpAddrPort(&(lis->address)) == 443)
+ if (httpAddrPort(&(lis->address)) == 443)
lis->encryption = HTTP_ENCRYPT_ALWAYS;
# endif /* HAVE_SSL */
}
* shared printers to advertise...
*/
- if (cupsArrayCount(ActiveJobs) || NumPolled ||
- (Browsing &&
- (BrowseRemoteProtocols ||
- (BrowseLocalProtocols && cupsArrayCount(Printers)))))
+ if (cupsArrayCount(ActiveJobs) ||
+ (Browsing && BrowseLocalProtocols && cupsArrayCount(Printers)))
{
cupsdLogMessage(CUPSD_LOG_DEBUG,
"Creating launchd keepalive file \"" CUPS_KEEPALIVE
cupsd_job_t *job; /* Current job */
int i; /* Looping var */
char name[1024]; /* Process name */
+ const char *type; /* Type of program */
cupsdLogMessage(CUPSD_LOG_DEBUG2, "process_children()");
* Handle completed job filters...
*/
- if (job_id > 0 && (job = cupsdFindJob(job_id)) != NULL)
+ if (job_id > 0)
+ job = cupsdFindJob(job_id);
+ else
+ job = NULL;
+
+ if (job)
{
for (i = 0; job->filters[i]; i ++)
if (job->filters[i] == pid)
*/
if (job->filters[i])
+ {
job->filters[i] = -pid;
+ type = "Filter";
+ }
else
+ {
job->backend = -pid;
+ type = "Backend";
+ }
if (status && status != SIGTERM && status != SIGKILL &&
- status != SIGPIPE && job->status >= 0)
+ status != SIGPIPE)
{
/*
* An error occurred; save the exit status so we know to stop
*
* A negative status indicates that the backend failed and the
* printer needs to be stopped.
+ *
+ * In order to preserve the most serious status, we always log
+ * when a process dies due to a signal (e.g. SIGABRT, SIGSEGV,
+ * and SIGBUS) and prefer to log the backend exit status over a
+ * filter's.
*/
- if (job->filters[i])
- job->status = status; /* Filter failed */
- else
- job->status = -status; /* Backend failed */
+ int old_status = abs(job->status);
+
+ if (WIFSIGNALED(status) || /* This process crashed, or */
+ !job->status || /* No process had a status, or */
+ (!job->filters[i] && WIFEXITED(old_status)))
+ { /* Backend and filter didn't crash */
+ if (job->filters[i])
+ job->status = status; /* Filter failed */
+ else
+ job->status = -status; /* Backend failed */
+ }
if (job->state_value == IPP_JOB_PROCESSING &&
- job->status_level > CUPSD_LOG_ERROR)
+ job->status_level > CUPSD_LOG_ERROR &&
+ (job->filters[i] || !WIFEXITED(status)))
{
char message[1024]; /* New printer-state-message */
job->status_level = CUPSD_LOG_ERROR;
- snprintf(message, sizeof(message), "%s failed", name);
+ snprintf(message, sizeof(message), "%s failed", type);
if (job->printer)
{
if (status == SIGTERM || status == SIGKILL)
{
- cupsdLogMessage(CUPSD_LOG_DEBUG,
- "PID %d (%s) was terminated normally with signal %d.",
- pid, name, status);
+ cupsdLogJob(job, CUPSD_LOG_DEBUG,
+ "PID %d (%s) was terminated normally with signal %d.", pid,
+ name, status);
}
else if (status == SIGPIPE)
{
- cupsdLogMessage(CUPSD_LOG_DEBUG,
- "PID %d (%s) did not catch or ignore signal %d.",
- pid, name, status);
+ cupsdLogJob(job, CUPSD_LOG_DEBUG,
+ "PID %d (%s) did not catch or ignore signal %d.", pid, name,
+ status);
}
else if (status)
{
int code = WEXITSTATUS(status); /* Exit code */
if (code > 100)
- cupsdLogMessage(CUPSD_LOG_DEBUG,
- "PID %d (%s) stopped with status %d (%s)", pid, name,
- code, strerror(code - 100));
+ cupsdLogJob(job, CUPSD_LOG_DEBUG,
+ "PID %d (%s) stopped with status %d (%s)", pid, name,
+ code, strerror(code - 100));
else
- cupsdLogMessage(CUPSD_LOG_DEBUG,
- "PID %d (%s) stopped with status %d.", pid, name,
- code);
+ cupsdLogJob(job, CUPSD_LOG_DEBUG,
+ "PID %d (%s) stopped with status %d.", pid, name, code);
}
else
- cupsdLogMessage(CUPSD_LOG_ERROR, "PID %d (%s) crashed on signal %d.",
- pid, name, WTERMSIG(status));
+ cupsdLogJob(job, CUPSD_LOG_DEBUG, "PID %d (%s) crashed on signal %d.",
+ pid, name, WTERMSIG(status));
if (LogLevel < CUPSD_LOG_DEBUG)
- cupsdLogMessage(CUPSD_LOG_INFO,
- "Hint: Try setting the LogLevel to \"debug\" to find "
- "out more.");
+ cupsdLogJob(job, CUPSD_LOG_INFO,
+ "Hint: Try setting the LogLevel to \"debug\" to find out "
+ "more.");
}
else
- cupsdLogMessage(CUPSD_LOG_DEBUG, "PID %d (%s) exited with no errors.",
- pid, name);
+ cupsdLogJob(job, CUPSD_LOG_DEBUG, "PID %d (%s) exited with no errors.",
+ pid, name);
}
/*
long timeout; /* Timeout for select */
time_t now; /* Current time */
cupsd_client_t *con; /* Client information */
- cupsd_printer_t *p; /* Printer information */
cupsd_job_t *job; /* Job information */
cupsd_subscription_t *sub; /* Subscription information */
const char *why; /* Debugging aid */
+ cupsdLogMessage(CUPSD_LOG_DEBUG2, "select_timeout: JobHistoryUpdate=%ld",
+ (long)JobHistoryUpdate);
+
/*
* Check to see if any of the clients have pending data to be
* processed; if so, the timeout should be 0...
*/
+ // TODO: Use httpGetReady()
for (con = (cupsd_client_t *)cupsArrayFirst(Clients);
con;
con = (cupsd_client_t *)cupsArrayNext(Clients))
- if (con->http.used > 0)
+ if (con->http->used > 0)
return (0);
/*
* Check the activity and close old clients...
*/
+ // TODO: Use httpGetActivity()
for (con = (cupsd_client_t *)cupsArrayFirst(Clients);
con;
con = (cupsd_client_t *)cupsArrayNext(Clients))
- if ((con->http.activity + Timeout) < timeout)
+ if ((con->http->activity + Timeout) < timeout)
{
- timeout = con->http.activity + Timeout;
+ timeout = con->http->activity + Timeout;
why = "timeout a client connection";
}
- /*
- * Update the browse list as needed...
- */
-
- if (Browsing && BrowseLocalProtocols)
- {
-#ifdef HAVE_LIBSLP
- if ((BrowseLocalProtocols & BROWSE_SLP) && (BrowseSLPRefresh < timeout))
- {
- timeout = BrowseSLPRefresh;
- why = "update SLP browsing";
- }
-#endif /* HAVE_LIBSLP */
-
-#ifdef HAVE_LDAP
- if ((BrowseLocalProtocols & BROWSE_LDAP) && (BrowseLDAPRefresh < timeout))
- {
- timeout = BrowseLDAPRefresh;
- why = "update LDAP browsing";
- }
-#endif /* HAVE_LDAP */
-
- if ((BrowseLocalProtocols & BROWSE_CUPS) && NumBrowsers)
- {
- for (p = (cupsd_printer_t *)cupsArrayFirst(Printers);
- p;
- p = (cupsd_printer_t *)cupsArrayNext(Printers))
- {
- if (p->type & CUPS_PRINTER_REMOTE)
- {
- if ((p->browse_time + BrowseTimeout) < timeout)
- {
- timeout = p->browse_time + BrowseTimeout;
- why = "browse timeout a printer";
- }
- }
- else if (p->shared && !(p->type & CUPS_PRINTER_IMPLICIT))
- {
- if (BrowseInterval && (p->browse_time + BrowseInterval) < timeout)
- {
- timeout = p->browse_time + BrowseInterval;
- why = "send browse update";
- }
- }
- }
- }
- }
-
/*
* Write out changes to configuration and state files...
*/
}
/*
- * Check for any active jobs...
+ * Check for any job activity...
*/
+ if (JobHistoryUpdate && timeout > JobHistoryUpdate)
+ {
+ timeout = JobHistoryUpdate;
+ why = "update job history";
+ }
+
for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs);
job;
job = (cupsd_job_t *)cupsArrayNext(ActiveJobs))
{
+ if (job->cancel_time && job->cancel_time < timeout)
+ {
+ timeout = job->cancel_time;
+ why = "cancel stuck jobs";
+ }
+
if (job->kill_time && job->kill_time < timeout)
{
timeout = job->kill_time;
timeout = job->hold_until;
why = "release held jobs";
}
- else if (job->state_value == IPP_JOB_PENDING && timeout > (now + 10))
+
+ if (job->state_value == IPP_JOB_PENDING && timeout > (now + 10))
{
timeout = now + 10;
why = "start pending jobs";
}
/*
- * Adjust from absolute to relative time. If p->browse_time above
- * was 0 then we can end up with a negative value here, so check.
- * We add 1 second to the timeout since events occur after the
- * timeout expires, and limit the timeout to 86400 seconds (1 day)
- * to avoid select() timeout limits present on some operating
+ * Adjust from absolute to relative time. We add 1 second to the timeout since
+ * events occur after the timeout expires, and limit the timeout to 86400
+ * seconds (1 day) to avoid select() timeout limits present on some operating
* systems...
*/
_cupsLangPuts(fp, _("Usage: cupsd [options]"));
_cupsLangPuts(fp, _("Options:"));
- _cupsLangPuts(fp, _(" -c config-file Load alternate configuration "
- "file."));
+ _cupsLangPuts(fp, _(" -c cupsd.conf Set cupsd.conf file to use."));
_cupsLangPuts(fp, _(" -f Run in the foreground."));
_cupsLangPuts(fp, _(" -F Run in the foreground but "
"detach from console."));
/*
- * End of "$Id: main.c 7925 2008-09-10 17:47:26Z mike $".
+ * End of "$Id$".
*/
projects / thirdparty / cups.git / blobdiff