/*
* "$Id: main.c 7925 2008-09-10 17:47:26Z mike $"
*
- * Scheduler main loop for the Common UNIX Printing System (CUPS).
+ * Main loop for the CUPS scheduler.
*
- * Copyright 2007-2009 by Apple Inc.
+ * Copyright 2007-2011 by Apple Inc.
* Copyright 1997-2007 by Easy Software Products, all rights reserved.
*
* These coded instructions, statements, and computer programs are the
*
* Contents:
*
- * main() - Main entry for the CUPS scheduler.
- * cupsdClosePipe() - Close a pipe as necessary.
- * cupsdOpenPipe() - Create a pipe which is closed on exec.
- * 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() - Check-out with launchd.
- * 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.
+ * 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.
+ * cupsdClosePipe() - Close a pipe as necessary.
+ * cupsdFreeStrings() - Free an array of strings.
+ * cupsdHoldSignals() - Hold child and termination signals.
+ * cupsdMakeUUID() - Make a UUID URI conforming to RFC 4122.
+ * cupsdOpenPipe() - Create a pipe which is closed on exec.
+ * cupsdReleaseSignals() - Release signals for delivery.
+ * cupsdSetString() - Set a string value.
+ * cupsdSetStringf() - Set a formatted string value.
+ * cupsd_clean_files() - Clean out old files.
+ * 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.
*/
/*
#include <syslog.h>
#include <grp.h>
#include <cups/dir.h>
+#include <fnmatch.h>
#ifdef HAVE_LAUNCH_H
# include <launch.h>
# include <libgen.h>
-# define CUPS_KEEPALIVE CUPS_CACHEDIR "/org.cups.cupsd"
+# define CUPS_KEEPALIVE CUPS_CACHEDIR "/org.cups.cupsd"
/* Name of the launchd KeepAlive file */
# ifndef LAUNCH_JOBKEY_KEEPALIVE
# define LAUNCH_JOBKEY_KEEPALIVE "KeepAlive"
# include <notify.h>
#endif /* HAVE_NOTIFY_H */
-#if defined(__APPLE__) && defined(HAVE_DLFCN_H)
-# include <dlfcn.h>
-#endif /* __APPLE__ && HAVE_DLFCN_H */
-
/*
* Local functions...
*/
+static void cupsd_clean_files(const char *path,
+ const char *pattern);
#ifdef HAVE_LAUNCHD
static void launchd_checkin(void);
static void launchd_checkout(void);
static int stop_scheduler = 0;
/* Should the scheduler stop? */
-#if defined(__APPLE__) && defined(HAVE_DLFCN_H)
-static const char *PSQLibPath = "/usr/lib/libPrintServiceQuota.dylib";
-static const char *PSQLibFuncName = "PSQUpdateQuota";
-static void *PSQLibRef; /* libPrintServiceQuota.dylib */
-#endif /* HAVE_DLFCN_H */
-
/*
* 'main()' - Main entry for the CUPS scheduler.
senddoc_time, /* Send-Document time */
expire_time, /* Subscription expire time */
report_time, /* Malloc/client/job report time */
- event_time; /* Last time an event notification was done */
+ event_time; /* Last event notification time */
long timeout; /* Timeout for cupsdDoSelect() */
struct rlimit limit; /* Runtime limit */
#if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
if (i >= argc)
{
_cupsLangPuts(stderr, _("cupsd: Expected config filename "
- "after \"-c\" option\n"));
+ "after \"-c\" option."));
usage(1);
}
if ((current = malloc(1024)) == NULL)
{
_cupsLangPuts(stderr,
- _("cupsd: Unable to get current directory\n"));
+ _("cupsd: Unable to get current directory."));
return (1);
}
if (!getcwd(current, 1024))
{
_cupsLangPuts(stderr,
- _("cupsd: Unable to get current directory\n"));
+ _("cupsd: Unable to get current directory."));
free(current);
return (1);
}
fg = 1;
#else
_cupsLangPuts(stderr, _("cupsd: launchd(8) support not compiled "
- "in, running in normal mode.\n"));
+ "in, running in normal mode."));
fg = 0;
#endif /* HAVE_LAUNCHD */
break;
case 'p' : /* Stop immediately for profiling */
- puts("Warning: -p (startup profiling) is for internal testing use only!");
+ fputs("cupsd: -p (startup profiling) is for internal testing "
+ "use only!\n", stderr);
stop_scheduler = 1;
fg = 1;
break;
case 'P' : /* Disable security profiles */
- puts("Warning: -P (disable security profiles) is for internal testing use only!");
+ fputs("cupsd: -P (disable security profiles) is for internal "
+ "testing use only!\n", stderr);
UseProfiles = 0;
break;
#ifdef __APPLE__
case 'S' : /* Disable system management functions */
- puts("Warning: -S (disable system management) for internal testing use only!");
+ fputs("cupsd: -S (disable system management) for internal "
+ "testing use only!\n", stderr);
use_sysman = 0;
break;
#endif /* __APPLE__ */
default : /* Unknown option */
_cupsLangPrintf(stderr, _("cupsd: Unknown option \"%c\" - "
- "aborting\n"), *opt);
+ "aborting."), *opt);
usage(1);
break;
}
else
{
- _cupsLangPrintf(stderr, _("cupsd: Unknown argument \"%s\" - aborting\n"),
+ _cupsLangPrintf(stderr, _("cupsd: Unknown argument \"%s\" - aborting."),
argv[i]);
usage(1);
}
return (0);
}
- if (!strncmp(TempDir, RequestRoot, strlen(RequestRoot)))
- {
- /*
- * Clean out the temporary directory...
- */
-
- cups_dir_t *dir; /* Temporary directory */
- cups_dentry_t *dent; /* Directory entry */
- char tempfile[1024]; /* Temporary filename */
-
-
- if ((dir = cupsDirOpen(TempDir)) != NULL)
- {
- cupsdLogMessage(CUPSD_LOG_INFO,
- "Cleaning out old temporary files in \"%s\"...", TempDir);
-
- while ((dent = cupsDirRead(dir)) != NULL)
- {
- snprintf(tempfile, sizeof(tempfile), "%s/%s", TempDir, dent->filename);
+ /*
+ * Clean out old temp files and printer cache data.
+ */
- if (unlink(tempfile))
- cupsdLogMessage(CUPSD_LOG_ERROR,
- "Unable to remove temporary file \"%s\" - %s",
- tempfile, strerror(errno));
- else
- cupsdLogMessage(CUPSD_LOG_DEBUG, "Removed temporary file \"%s\"...",
- tempfile);
- }
+ if (!strncmp(TempDir, RequestRoot, strlen(RequestRoot)))
+ cupsd_clean_files(TempDir, NULL);
- cupsDirClose(dir);
- }
- else
- cupsdLogMessage(CUPSD_LOG_ERROR,
- "Unable to open temporary directory \"%s\" - %s",
- TempDir, strerror(errno));
- }
+ cupsd_clean_files(CacheDir, "*.ipp");
#if HAVE_LAUNCHD
if (Launchd)
}
#endif /* HAVE_LAUNCHD */
-#if defined(__APPLE__) && defined(HAVE_DLFCN_H)
- /*
- * Load Print Service quota enforcement library (X Server only)
- */
-
- PSQLibRef = dlopen(PSQLibPath, RTLD_LAZY);
-
- if (PSQLibRef)
- PSQUpdateQuotaProc = dlsym(PSQLibRef, PSQLibFuncName);
-#endif /* __APPLE__ && HAVE_DLFCN_H */
-
/*
* Startup the server...
*/
+ httpInitialize();
+
cupsdStartServer();
/*
* Shutdown the server...
*/
+ DoingShutdown = 1;
+
cupsdStopServer();
/*
if (Launchd)
{
/*
- * If we were started by launchd get the listen sockets file descriptors...
+ * If we were started by launchd, get the listen socket file
+ * descriptors...
*/
launchd_checkin();
* Startup the server...
*/
+ DoingShutdown = 0;
+
cupsdStartServer();
/*
!cupsArrayCount(ActiveJobs) &&
(!Browsing ||
(!BrowseRemoteProtocols &&
- (!NumBrowsers || !BrowseLocalProtocols ||
- cupsArrayCount(Printers) == 0))))
+ (!BrowseLocalProtocols || !cupsArrayCount(Printers)))))
{
timeout = LaunchdTimeout;
launchd_idle_exit = 1;
cupsArrayCount(PrintingJobs) > 0)
{
SleepJobs = 0;
- cupsdStopAllJobs(CUPSD_JOB_DEFAULT, 10);
+ cupsdStopAllJobs(CUPSD_JOB_DEFAULT, 5);
}
#endif /* __APPLE__ */
* Close all network clients...
*/
+ DoingShutdown = 1;
+
cupsdStopServer();
#ifdef HAVE_LAUNCHD
krb5_free_context(KerberosContext);
#endif /* HAVE_GSSAPI */
-#if defined(__APPLE__) && defined(HAVE_DLFCN_H)
- /*
- * Unload Print Service quota enforcement library (X Server only)
- */
-
- PSQUpdateQuotaProc = NULL;
- if (PSQLibRef)
- {
- dlclose(PSQLibRef);
- PSQLibRef = NULL;
- }
-#endif /* __APPLE__ && HAVE_DLFCN_H */
-
#ifdef __sgi
/*
* Remove the fake IRIX lpsched lock file, but only if the existing
}
+/*
+ * 'cupsdAddString()' - Copy and add a string to an array.
+ */
+
+int /* O - 1 on success, 0 on failure */
+cupsdAddString(cups_array_t **a, /* IO - String array */
+ const char *s) /* I - String to copy and add */
+{
+ if (!*a)
+ *a = cupsArrayNew3((cups_array_func_t)strcmp, NULL,
+ (cups_ahash_func_t)NULL, 0,
+ (cups_acopy_func_t)_cupsStrAlloc,
+ (cups_afree_func_t)_cupsStrFree);
+
+ return (cupsArrayAdd(*a, (char *)s));
+}
+
+
/*
* 'cupsdCheckProcess()' - Tell the main loop to check for dead children.
*/
}
+/*
+ * 'cupsdClearString()' - Clear a string.
+ */
+
+void
+cupsdClearString(char **s) /* O - String value */
+{
+ if (s && *s)
+ {
+ _cupsStrFree(*s);
+ *s = NULL;
+ }
+}
+
+
/*
* 'cupsdClosePipe()' - Close a pipe as necessary.
*/
}
+/*
+ * 'cupsdFreeStrings()' - Free an array of strings.
+ */
+
+void
+cupsdFreeStrings(cups_array_t **a) /* IO - String array */
+{
+ if (*a)
+ {
+ cupsArrayDelete(*a);
+ *a = NULL;
+ }
+}
+
+
+/*
+ * 'cupsdHoldSignals()' - Hold child and termination signals.
+ */
+
+void
+cupsdHoldSignals(void)
+{
+#if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
+ sigset_t newmask; /* New POSIX signal mask */
+#endif /* HAVE_SIGACTION && !HAVE_SIGSET */
+
+
+ holdcount ++;
+ if (holdcount > 1)
+ return;
+
+#ifdef HAVE_SIGSET
+ sighold(SIGTERM);
+ sighold(SIGCHLD);
+#elif defined(HAVE_SIGACTION)
+ sigemptyset(&newmask);
+ sigaddset(&newmask, SIGTERM);
+ sigaddset(&newmask, SIGCHLD);
+ sigprocmask(SIG_BLOCK, &newmask, &holdmask);
+#endif /* HAVE_SIGSET */
+}
+
+
+/*
+ * 'cupsdMakeUUID()' - Make a UUID URI conforming to RFC 4122.
+ *
+ * The buffer needs to be at least 46 bytes in size.
+ */
+
+char * /* I - UUID string */
+cupsdMakeUUID(const char *name, /* I - Object name */
+ int number, /* I - Object number */
+ char *buffer, /* I - String buffer */
+ size_t bufsize) /* I - Size of buffer */
+{
+ char data[1024]; /* Source string for MD5 */
+ _cups_md5_state_t md5state; /* MD5 state */
+ unsigned char md5sum[16]; /* MD5 digest/sum */
+
+
+ /*
+ * Build a version 3 UUID conforming to RFC 4122.
+ *
+ * Start with the MD5 sum of the ServerName, RemotePort, object name and
+ * number, and some random data on the end.
+ */
+
+ snprintf(data, sizeof(data), "%s:%d:%s:%d:%04x:%04x", ServerName,
+ RemotePort, name ? name : ServerName, number,
+ CUPS_RAND() & 0xffff, CUPS_RAND() & 0xffff);
+
+ _cupsMD5Init(&md5state);
+ _cupsMD5Append(&md5state, (unsigned char *)data, strlen(data));
+ _cupsMD5Finish(&md5state, md5sum);
+
+ /*
+ * Generate the UUID from the MD5...
+ */
+
+ snprintf(buffer, bufsize,
+ "urn:uuid:%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-"
+ "%02x%02x%02x%02x%02x%02x",
+ md5sum[0], md5sum[1], md5sum[2], md5sum[3], md5sum[4], md5sum[5],
+ (md5sum[6] & 15) | 0x30, md5sum[7], (md5sum[8] & 0x3f) | 0x40,
+ md5sum[9], md5sum[10], md5sum[11], md5sum[12], md5sum[13],
+ md5sum[14], md5sum[15]);
+
+ return (buffer);
+}
+
+
/*
* 'cupsdOpenPipe()' - Create a pipe which is closed on exec.
*/
}
-/*
- * 'cupsdClearString()' - Clear a string.
- */
-
-void
-cupsdClearString(char **s) /* O - String value */
-{
- if (s && *s)
- {
- _cupsStrFree(*s);
- *s = NULL;
- }
-}
-
-
-/*
- * 'cupsdHoldSignals()' - Hold child and termination signals.
- */
-
-void
-cupsdHoldSignals(void)
-{
-#if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
- sigset_t newmask; /* New POSIX signal mask */
-#endif /* HAVE_SIGACTION && !HAVE_SIGSET */
-
-
- holdcount ++;
- if (holdcount > 1)
- return;
-
-#ifdef HAVE_SIGSET
- sighold(SIGTERM);
- sighold(SIGCHLD);
-#elif defined(HAVE_SIGACTION)
- sigemptyset(&newmask);
- sigaddset(&newmask, SIGTERM);
- sigaddset(&newmask, SIGCHLD);
- sigprocmask(SIG_BLOCK, &newmask, &holdmask);
-#endif /* HAVE_SIGSET */
-}
-
-
/*
* 'cupsdReleaseSignals()' - Release signals for delivery.
*/
}
+/*
+ * 'cupsd_clean_files()' - Clean out old files.
+ */
+
+static void
+cupsd_clean_files(const char *path, /* I - Directory to clean */
+ const char *pattern) /* I - Filename pattern or NULL */
+{
+ cups_dir_t *dir; /* Directory */
+ cups_dentry_t *dent; /* Directory entry */
+ char filename[1024]; /* Filename */
+ int status; /* Status from unlink/rmdir */
+
+
+ cupsdLogMessage(CUPSD_LOG_DEBUG,
+ "cupsd_clean_files(path=\"%s\", pattern=\"%s\")", path,
+ pattern ? pattern : "(null)");
+
+ if ((dir = cupsDirOpen(path)) == NULL)
+ {
+ cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to open directory \"%s\" - %s",
+ path, strerror(errno));
+ return;
+ }
+
+ cupsdLogMessage(CUPSD_LOG_INFO, "Cleaning out old files in \"%s\"...", path);
+
+ while ((dent = cupsDirRead(dir)) != NULL)
+ {
+ if (pattern && fnmatch(pattern, dent->filename, 0))
+ continue;
+
+ snprintf(filename, sizeof(filename), "%s/%s", path, dent->filename);
+
+ if (S_ISDIR(dent->fileinfo.st_mode))
+ {
+ cupsd_clean_files(filename, pattern);
+
+ status = rmdir(filename);
+ }
+ else
+ status = unlink(filename);
+
+ if (status)
+ cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to remove \"%s\" - %s", filename,
+ strerror(errno));
+ else
+ cupsdLogMessage(CUPSD_LOG_DEBUG, "Removed \"%s\"...", filename);
+ }
+
+ cupsDirClose(dir);
+}
+
+
#ifdef HAVE_LAUNCHD
/*
* 'launchd_checkin()' - Check-in with launchd and collect the listening fds.
launchd_checkin(void)
{
size_t i, /* Looping var */
- count; /* Numebr of listeners */
+ count; /* Number of listeners */
+# ifdef HAVE_SSL
int portnum; /* Port number */
+# endif /* HAVE_SSL */
launch_data_t ld_msg, /* Launch data message */
ld_resp, /* Launch data response */
ld_array, /* Launch data array */
if ((lis = calloc(1, sizeof(cupsd_listener_t))) == NULL)
{
cupsdLogMessage(CUPSD_LOG_ERROR,
- "launchd_checkin: Unable to allocate listener - %s.",
- strerror(errno));
+ "launchd_checkin: Unable to allocate listener - "
+ "%s.", strerror(errno));
exit(EXIT_FAILURE);
}
* shared printers to advertise...
*/
- if ((cupsArrayCount(ActiveJobs) || NumPolled ||
- (Browsing &&
- (BrowseRemoteProtocols ||
- (BrowseLocalProtocols && NumBrowsers && cupsArrayCount(Printers))))))
+ if (cupsArrayCount(ActiveJobs) || NumPolled ||
+ (Browsing &&
+ (BrowseRemoteProtocols ||
+ (BrowseLocalProtocols && cupsArrayCount(Printers)))))
{
cupsdLogMessage(CUPSD_LOG_DEBUG,
- "Creating launchd keepalive file \"" CUPS_KEEPALIVE "\"...");
+ "Creating launchd keepalive file \"" CUPS_KEEPALIVE
+ "\"...");
if ((fd = open(CUPS_KEEPALIVE, O_RDONLY | O_CREAT | O_EXCL, S_IRUSR)) >= 0)
close(fd);
else
{
cupsdLogMessage(CUPSD_LOG_DEBUG,
- "Removing launchd keepalive file \"" CUPS_KEEPALIVE "\"...");
+ "Removing launchd keepalive file \"" CUPS_KEEPALIVE
+ "\"...");
unlink(CUPS_KEEPALIVE);
}
job->backend = -pid;
if (status && status != SIGTERM && status != SIGKILL &&
- job->status >= 0)
+ status != SIGPIPE && job->status >= 0)
{
/*
* An error occurred; save the exit status so we know to stop
{
strlcpy(job->printer->state_message, message,
sizeof(job->printer->state_message));
- cupsdAddPrinterHistory(job->printer);
}
if (!job->attrs)
job->printer_message = ippAddString(job->attrs, IPP_TAG_JOB,
IPP_TAG_TEXT,
"job-printer-state-message",
- NULL, "");
+ NULL, NULL);
}
if (job->printer_message)
* filters are done, and if so move to the next file.
*/
- if (job->current_file < job->num_files)
+ if (job->current_file < job->num_files && job->printer)
{
for (i = 0; job->filters[i] < 0; i ++);
- if (!job->filters[i])
+ if (!job->filters[i] &&
+ (!job->printer->pc || !job->printer->pc->single_file ||
+ job->backend <= 0))
{
/*
* Process the next file...
cupsdContinueJob(job);
}
}
- else if (job->state_value == IPP_JOB_CANCELED)
+ else if (job->state_value >= IPP_JOB_CANCELED)
{
/*
* Remove the job from the active list if there are no processes still
"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);
+ }
else if (status)
{
if (WIFEXITED(status))
static void
usage(int status) /* O - Exit status */
{
- _cupsLangPuts(status ? stderr : stdout,
- _("Usage: cupsd [-c config-file] [-f] [-F] [-h] [-l]\n"
- "\n"
- "-c config-file Load alternate configuration file\n"
- "-f Run in the foreground\n"
- "-F Run in the foreground but detach\n"
- "-h Show this usage message\n"
- "-l Run cupsd from launchd(8)\n"));
+ FILE *fp = status ? stderr : stdout; /* Output file */
+
+
+ _cupsLangPuts(fp, _("Usage: cupsd [options]"));
+ _cupsLangPuts(fp, _("Options:"));
+ _cupsLangPuts(fp, _(" -c config-file Load alternate configuration "
+ "file."));
+ _cupsLangPuts(fp, _(" -f Run in the foreground."));
+ _cupsLangPuts(fp, _(" -F Run in the foreground but "
+ "detach from console."));
+ _cupsLangPuts(fp, _(" -h Show this usage message."));
+ _cupsLangPuts(fp, _(" -l Run cupsd from launchd(8)."));
+ _cupsLangPuts(fp, _(" -t Test the configuration "
+ "file."));
+
exit(status);
}
projects / thirdparty / cups.git / blobdiff