/*
- * "$Id: socket.c 7881 2008-08-28 20:21:56Z mike $"
+ * AppSocket backend for CUPS.
*
- * AppSocket backend for the Common UNIX Printing System (CUPS).
+ * Copyright 2007-2016 by Apple Inc.
+ * Copyright 1997-2007 by Easy Software Products, all rights reserved.
*
- * Copyright 2007-2009 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/".
*
- * 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/".
- *
- * This file is subject to the Apple OS-Developed Software exception.
- *
- * Contents:
- *
- * main() - Send a file to the printer or server.
- * wait_bc() - Wait for back-channel data...
+ * This file is subject to the Apple OS-Developed Software exception.
*/
/*
* Local functions...
*/
-static int wait_bc(int device_fd, int secs);
+static ssize_t wait_bc(int device_fd, int secs);
/*
sep; /* Option separator */
int print_fd; /* Print file */
int copies; /* Number of copies to print */
- time_t start_time, /* Time of first connect */
- current_time, /* Current time */
- wait_time; /* Time to wait before shutting down socket */
+ time_t start_time; /* Time of first connect */
int contimeout; /* Connection timeout */
int waiteof; /* Wait for end-of-file? */
int port; /* Port number */
- char portname[255]; /* Port name */
int delay; /* Delay for retries... */
int device_fd; /* AppSocket */
int error; /* Error code (if any) */
http_addrlist_t *addrlist, /* Address list */
*addr; /* Connected address */
char addrname[256]; /* Address name */
+ int snmp_enabled = 1; /* Is SNMP enabled? */
int snmp_fd, /* SNMP socket */
start_count, /* Page count via SNMP at start */
page_count, /* Page count via SNMP */
have_supplies; /* Printer supports supply levels? */
- ssize_t tbytes; /* Total number of bytes written */
+ ssize_t bytes = 0, /* Initial bytes read */
+ tbytes; /* Total number of bytes written */
+ char buffer[1024]; /* Initial print buffer */
#if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
struct sigaction action; /* Actions for POSIX signals */
#endif /* HAVE_SIGACTION && !HAVE_SIGSET */
else if (argc < 6 || argc > 7)
{
_cupsLangPrintf(stderr,
- _("Usage: %s job-id user title copies options [file]\n"),
+ _("Usage: %s job-id user title copies options [file]"),
argv[0]);
return (CUPS_BACKEND_FAILED);
}
if ((print_fd = open(argv[6], O_RDONLY)) < 0)
{
- _cupsLangPrintf(stderr,
- _("ERROR: Unable to open print file \"%s\": %s\n"),
- argv[6], strerror(errno));
+ _cupsLangPrintError("ERROR", _("Unable to open print file"));
return (CUPS_BACKEND_FAILED);
}
* Extract the hostname and port number from the URI...
*/
- if ((device_uri = cupsBackendDeviceURI(argv)) == NULL)
- return (CUPS_BACKEND_FAILED);
+ while ((device_uri = cupsBackendDeviceURI(argv)) == NULL)
+ {
+ _cupsLangPrintFilter(stderr, "INFO", _("Unable to locate printer."));
+ sleep(10);
+
+ if (getenv("CLASS") != NULL)
+ return (CUPS_BACKEND_FAILED);
+ }
httpSeparateURI(HTTP_URI_CODING_ALL, device_uri, scheme, sizeof(scheme),
username, sizeof(username), hostname, sizeof(hostname), &port,
* Process the option...
*/
- if (!strcasecmp(name, "waiteof"))
+ if (!_cups_strcasecmp(name, "waiteof"))
{
/*
* Set the wait-for-eof value...
*/
- waiteof = !value[0] || !strcasecmp(value, "on") ||
- !strcasecmp(value, "yes") || !strcasecmp(value, "true");
+ waiteof = !value[0] || !_cups_strcasecmp(value, "on") ||
+ !_cups_strcasecmp(value, "yes") || !_cups_strcasecmp(value, "true");
+ }
+ else if (!_cups_strcasecmp(name, "snmp"))
+ {
+ /*
+ * Enable/disable SNMP stuff...
+ */
+
+ snmp_enabled = !value[0] || !_cups_strcasecmp(value, "on") ||
+ !_cups_strcasecmp(value, "yes") ||
+ !_cups_strcasecmp(value, "true");
}
- else if (!strcasecmp(name, "contimeout"))
+ else if (!_cups_strcasecmp(name, "contimeout"))
{
/*
* Set the connection timeout...
}
/*
- * Then try to connect to the remote host...
+ * Then try finding the remote host...
*/
start_time = time(NULL);
- sprintf(portname, "%d", port);
+ addrlist = backendLookup(hostname, port, NULL);
- fputs("STATE: +connecting-to-device\n", stderr);
- fprintf(stderr, "DEBUG: Looking up \"%s\"...\n", hostname);
+ /*
+ * See if the printer supports SNMP...
+ */
+
+ if (snmp_enabled)
+ snmp_fd = _cupsSNMPOpen(addrlist->addr.addr.sa_family);
+ else
+ snmp_fd = -1;
+
+ if (snmp_fd >= 0)
+ have_supplies = !backendSNMPSupplies(snmp_fd, &(addrlist->addr),
+ &start_count, NULL);
+ else
+ have_supplies = start_count = 0;
- if ((addrlist = httpAddrGetList(hostname, AF_UNSPEC, portname)) == NULL)
+ /*
+ * Wait for data from the filter...
+ */
+
+ if (print_fd == 0)
{
- _cupsLangPrintf(stderr, _("ERROR: Unable to locate printer \'%s\'\n"),
- hostname);
- return (CUPS_BACKEND_STOP);
+ if (!backendWaitLoop(snmp_fd, &(addrlist->addr), 1, backendNetworkSideCB))
+ return (CUPS_BACKEND_OK);
+ else if ((bytes = read(0, buffer, sizeof(buffer))) <= 0)
+ return (CUPS_BACKEND_OK);
}
+ /*
+ * Connect to the printer...
+ */
+
fprintf(stderr, "DEBUG: Connecting to %s:%d\n", hostname, port);
- _cupsLangPuts(stderr, _("INFO: Connecting to printer...\n"));
+ _cupsLangPrintFilter(stderr, "INFO", _("Connecting to printer."));
for (delay = 5;;)
{
* available printer in the class.
*/
- _cupsLangPuts(stderr,
- _("INFO: Unable to contact printer, queuing on next "
- "printer in class...\n"));
+ _cupsLangPrintFilter(stderr, "INFO",
+ _("Unable to contact printer, queuing on next "
+ "printer in class."));
/*
* Sleep 5 seconds to keep the job from requeuing too rapidly...
return (CUPS_BACKEND_FAILED);
}
- if (error == ECONNREFUSED || error == EHOSTDOWN ||
- error == EHOSTUNREACH)
+ fprintf(stderr, "DEBUG: Connection error: %s\n", strerror(error));
+
+ if (errno == ECONNREFUSED || errno == EHOSTDOWN || errno == EHOSTUNREACH || errno == ETIMEDOUT || errno == ENOTCONN)
{
if (contimeout && (time(NULL) - start_time) > contimeout)
{
- _cupsLangPuts(stderr, _("ERROR: Printer not responding\n"));
+ _cupsLangPrintFilter(stderr, "ERROR",
+ _("The printer is not responding."));
return (CUPS_BACKEND_FAILED);
}
- _cupsLangPrintf(stderr,
- _("WARNING: Network host \'%s\' is busy; will retry in "
- "%d seconds...\n"), hostname, delay);
-
- sleep(delay);
+ switch (error)
+ {
+ case EHOSTDOWN :
+ _cupsLangPrintFilter(stderr, "WARNING",
+ _("The printer may not exist or "
+ "is unavailable at this time."));
+ break;
+
+ case EHOSTUNREACH :
+ default :
+ _cupsLangPrintFilter(stderr, "WARNING",
+ _("The printer is unreachable at this "
+ "time."));
+ break;
+
+ case ECONNREFUSED :
+ _cupsLangPrintFilter(stderr, "WARNING",
+ _("The printer is in use."));
+ break;
+ }
+
+ sleep((unsigned)delay);
if (delay < 30)
delay += 5;
}
else
{
- _cupsLangPrintf(stderr, "DEBUG: Connection error: %s\n",
- strerror(errno));
- _cupsLangPuts(stderr,
- _("ERROR: Unable to connect to printer; will retry in 30 "
- "seconds...\n"));
+ _cupsLangPrintFilter(stderr, "ERROR",
+ _("The printer is not responding."));
sleep(30);
}
}
}
fputs("STATE: -connecting-to-device\n", stderr);
- _cupsLangPuts(stderr, _("INFO: Connected to printer...\n"));
-
-#ifdef AF_INET6
- if (addr->addr.addr.sa_family == AF_INET6)
- fprintf(stderr, "DEBUG: Connected to [%s]:%d (IPv6)...\n",
- httpAddrString(&addr->addr, addrname, sizeof(addrname)),
- ntohs(addr->addr.ipv6.sin6_port));
- else
-#endif /* AF_INET6 */
- if (addr->addr.addr.sa_family == AF_INET)
- fprintf(stderr, "DEBUG: Connected to %s:%d (IPv4)...\n",
- httpAddrString(&addr->addr, addrname, sizeof(addrname)),
- ntohs(addr->addr.ipv4.sin_port));
-
- /*
- * See if the printer supports SNMP...
- */
+ _cupsLangPrintFilter(stderr, "INFO", _("Connected to printer."));
- if ((snmp_fd = _cupsSNMPOpen(addr->addr.addr.sa_family)) >= 0)
- {
- have_supplies = !backendSNMPSupplies(snmp_fd, &(addr->addr), &start_count,
- NULL);
- }
- else
- have_supplies = start_count = 0;
+ fprintf(stderr, "DEBUG: Connected to %s:%d...\n",
+ httpAddrString(&(addr->addr), addrname, sizeof(addrname)),
+ httpAddrPort(&(addr->addr)));
/*
* Print everything...
tbytes = 0;
+ if (bytes > 0)
+ tbytes += write(device_fd, buffer, (size_t)bytes);
+
while (copies > 0 && tbytes >= 0)
{
copies --;
lseek(print_fd, 0, SEEK_SET);
}
- tbytes = backendRunLoop(print_fd, device_fd, snmp_fd, &(addr->addr), 1, 0,
- backendNetworkSideCB);
+ tbytes = backendRunLoop(print_fd, device_fd, snmp_fd, &(addrlist->addr), 1,
+ 0, backendNetworkSideCB);
if (print_fd != 0 && tbytes >= 0)
- _cupsLangPrintf(stderr,
-#ifdef HAVE_LONG_LONG
- _("INFO: Sent print file, %lld bytes...\n"),
-#else
- _("INFO: Sent print file, %ld bytes...\n"),
-#endif /* HAVE_LONG_LONG */
- CUPS_LLCAST tbytes);
+ _cupsLangPrintFilter(stderr, "INFO", _("Print file sent."));
}
- /*
- * Wait up to 5 seconds to get any pending back-channel data...
- */
-
- wait_time = time(NULL) + 5;
- while (wait_time >= time(¤t_time))
- if (wait_bc(device_fd, wait_time - current_time) <= 0)
- break;
+ fputs("STATE: +cups-waiting-for-job-completed\n", stderr);
if (waiteof)
{
* Shutdown the socket and wait for the other end to finish...
*/
- _cupsLangPuts(stderr,
- _("INFO: Print file sent, waiting for printer to finish...\n"));
+ _cupsLangPrintFilter(stderr, "INFO", _("Waiting for printer to finish."));
shutdown(device_fd, 1);
* Collect the final page count as needed...
*/
- if (have_supplies &&
- !backendSNMPSupplies(snmp_fd, &(addr->addr), &page_count, NULL) &&
+ if (have_supplies &&
+ !backendSNMPSupplies(snmp_fd, &(addrlist->addr), &page_count, NULL) &&
page_count > start_count)
fprintf(stderr, "PAGE: total %d\n", page_count - start_count);
if (print_fd != 0)
close(print_fd);
- if (tbytes >= 0)
- _cupsLangPuts(stderr, _("INFO: Ready to print.\n"));
-
- return (tbytes < 0 ? CUPS_BACKEND_FAILED : CUPS_BACKEND_OK);
+ return (CUPS_BACKEND_OK);
}
* 'wait_bc()' - Wait for back-channel data...
*/
-static int /* O - # bytes read or -1 on error */
+static ssize_t /* O - # bytes read or -1 on error */
wait_bc(int device_fd, /* I - Socket */
int secs) /* I - Seconds to wait */
{
{
fprintf(stderr, "DEBUG: Received %d bytes of back-channel data\n",
(int)bytes);
- cupsBackChannelWrite(buffer, bytes, 1.0);
+ cupsBackChannelWrite(buffer, (size_t)bytes, 1.0);
}
return (bytes);
else
return (-1);
}
-
-
-/*
- * End of "$Id: socket.c 7881 2008-08-28 20:21:56Z mike $".
- */
projects / thirdparty / cups.git / blobdiff