/*
- * "$Id: socket.c 5099 2006-02-13 02:46:10Z mike $"
+ * "$Id: socket.c 7583 2008-05-16 17:47:16Z mike $"
*
* AppSocket backend for the Common UNIX Printing System (CUPS).
*
- * Copyright 1997-2006 by Easy Software Products, all rights reserved.
+ * Copyright 2007-2008 by Apple Inc.
+ * Copyright 1997-2007 by Easy Software Products, all rights reserved.
*
* These coded instructions, statements, and computer programs are the
- * property of Easy Software Products and are protected by Federal
- * copyright law. Distribution and use rights are outlined in the file
+ * 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 please contact Easy Software Products
- * at:
- *
- * Attn: CUPS Licensing Information
- * Easy Software Products
- * 44141 Airport View Drive, Suite 204
- * Hollywood, Maryland 20636 USA
- *
- * Voice: (301) 373-9600
- * EMail: cups-info@cups.org
- * WWW: http://www.cups.org
+ * 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.
+ * main() - Send a file to the printer or server.
+ * wait_bc() - Wait for back-channel data...
*/
/*
* Include necessary headers.
*/
-#include <cups/backend.h>
#include <cups/http-private.h>
-#include <cups/cups.h>
-#include <stdio.h>
-#include <stdlib.h>
+#include "backend-private.h"
#include <stdarg.h>
-#include <cups/string.h>
-#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
-#include <signal.h>
#ifdef WIN32
# include <winsock.h>
#endif /* WIN32 */
+/*
+ * Local functions...
+ */
+
+static int wait_bc(int device_fd, int secs);
+
+
/*
* 'main()' - Send a file to the printer or server.
*
main(int argc, /* I - Number of command-line arguments (6 or 7) */
char *argv[]) /* I - Command-line arguments */
{
+ const char *device_uri; /* Device URI */
char method[255], /* Method in URI */
hostname[1024], /* Hostname */
username[255], /* Username info (not used) */
resource[1024], /* Resource info (not used) */
*options, /* Pointer to options */
- name[255], /* Name of option */
- value[255], /* Value of option */
- *ptr; /* Pointer into name or value */
- int fp; /* Print file */
+ *name, /* Name of option */
+ *value, /* Value of option */
+ sep; /* Option separator */
+ int print_fd; /* Print file */
int copies; /* Number of copies to print */
+ time_t start_time, /* Time of first connect */
+ wait_time; /* Time to wait before shutting down socket */
+ int recoverable; /* Recoverable error shown? */
+ 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 fd; /* AppSocket */
+ int device_fd; /* AppSocket */
int error; /* Error code (if any) */
- http_addrlist_t *addrlist; /* Address list */
- int rbytes; /* Number of bytes read */
- int wbytes; /* Number of bytes written */
- int nbytes; /* Number of bytes read */
- size_t tbytes; /* Total number of bytes written */
- char buffer[8192], /* Output buffer */
- *bufptr; /* Pointer into buffer */
- struct timeval timeout; /* Timeout for select() */
- fd_set input, /* Input set for select() */
- output; /* Output set for select() */
+ http_addrlist_t *addrlist, /* Address list */
+ *addr; /* Connected address */
+ char addrname[256]; /* Address name */
+ int snmp_fd, /* SNMP socket */
+ start_count, /* Page count via SNMP at start */
+ page_count; /* Page count via SNMP */
+ ssize_t tbytes; /* Total number of bytes written */
#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)
{
- fprintf(stderr, "Usage: %s job-id user title copies options [file]\n",
- argv[0]);
+ _cupsLangPrintf(stderr,
+ _("Usage: %s job-id user title copies options [file]\n"),
+ argv[0]);
return (CUPS_BACKEND_FAILED);
}
if (argc == 6)
{
- fp = 0;
- copies = 1;
+ print_fd = 0;
+ copies = 1;
}
else
{
* Try to open the print file...
*/
- if ((fp = open(argv[6], O_RDONLY)) < 0)
+ if ((print_fd = open(argv[6], O_RDONLY)) < 0)
{
- perror("ERROR: unable to open print file");
+ _cupsLangPrintf(stderr,
+ _("ERROR: Unable to open print file \"%s\": %s\n"),
+ argv[6], strerror(errno));
return (CUPS_BACKEND_FAILED);
}
* Extract the hostname and port number from the URI...
*/
- httpSeparateURI(HTTP_URI_CODING_ALL, cupsBackendDeviceURI(argv),
+ if ((device_uri = cupsBackendDeviceURI(argv)) == NULL)
+ return (CUPS_BACKEND_FAILED);
+
+ httpSeparateURI(HTTP_URI_CODING_ALL, device_uri,
method, sizeof(method), username, sizeof(username),
hostname, sizeof(hostname), &port,
resource, sizeof(resource));
* Get options, if any...
*/
- waiteof = 1;
+ waiteof = 1;
+ contimeout = 7 * 24 * 60 * 60;
if ((options = strchr(resource, '?')) != NULL)
{
* Get the name...
*/
- for (ptr = name; *options && *options != '=';)
- if (ptr < (name + sizeof(name) - 1))
- *ptr++ = *options++;
- *ptr = '\0';
+ name = options;
+
+ while (*options && *options != '=' && *options != '+' && *options != '&')
+ options ++;
+
+ if ((sep = *options) != '\0')
+ *options++ = '\0';
- if (*options == '=')
+ if (sep == '=')
{
/*
* Get the value...
*/
- options ++;
-
- for (ptr = value; *options && *options != '+' && *options != '&';)
- if (ptr < (value + sizeof(value) - 1))
- *ptr++ = *options++;
- *ptr = '\0';
+ value = options;
- if (*options == '+' || *options == '&')
+ while (*options && *options != '+' && *options != '&')
options ++;
+
+ if (*options)
+ *options++ = '\0';
}
else
- value[0] = '\0';
+ value = (char *)"";
/*
* Process the option...
waiteof = !value[0] || !strcasecmp(value, "on") ||
!strcasecmp(value, "yes") || !strcasecmp(value, "true");
}
+ else if (!strcasecmp(name, "contimeout"))
+ {
+ /*
+ * Set the connection timeout...
+ */
+
+ if (atoi(value) > 0)
+ contimeout = atoi(value);
+ }
}
}
* Then try to connect to the remote host...
*/
+ recoverable = 0;
+ start_time = time(NULL);
+
sprintf(portname, "%d", port);
if ((addrlist = httpAddrGetList(hostname, AF_UNSPEC, portname)) == NULL)
{
- fprintf(stderr, "ERROR: Unable to locate printer \'%s\'!\n", hostname);
+ _cupsLangPrintf(stderr, _("ERROR: Unable to locate printer \'%s\'!\n"),
+ hostname);
return (CUPS_BACKEND_STOP);
}
- fprintf(stderr, "INFO: Attempting to connect to host %s on port %d\n",
- hostname, port);
+ _cupsLangPrintf(stderr,
+ _("INFO: Attempting to connect to host %s on port %d\n"),
+ hostname, port);
- wbytes = 0;
+ fputs("STATE: +connecting-to-device\n", stderr);
- while (copies > 0)
+ for (delay = 5;;)
{
- for (delay = 5;;)
+ if ((addr = httpAddrConnect(addrlist, &device_fd)) == NULL)
{
- if (!httpAddrConnect(addrlist, &fd))
+ error = errno;
+ device_fd = -1;
+
+ if (getenv("CLASS") != NULL)
{
- error = errno;
- fd = -1;
+ /*
+ * If the CLASS environment variable is set, the job was submitted
+ * to a class and not to a specific queue. In this case, we want
+ * to abort immediately so that the job can be requeued on the next
+ * available printer in the class.
+ */
- if (getenv("CLASS") != NULL)
- {
- /*
- * If the CLASS environment variable is set, the job was submitted
- * to a class and not to a specific queue. In this case, we want
- * to abort immediately so that the job can be requeued on the next
- * available printer in the class.
- */
+ _cupsLangPuts(stderr,
+ _("INFO: Unable to contact printer, queuing on next "
+ "printer in class...\n"));
- fprintf(stderr, "INFO: Unable to connect to \"%s\", queuing on next printer in class...\n",
- hostname);
+ /*
+ * Sleep 5 seconds to keep the job from requeuing too rapidly...
+ */
- /*
- * Sleep 5 seconds to keep the job from requeuing too rapidly...
- */
+ sleep(5);
- sleep(5);
+ return (CUPS_BACKEND_FAILED);
+ }
- return (CUPS_BACKEND_FAILED);
+ if (error == ECONNREFUSED || error == EHOSTDOWN ||
+ error == EHOSTUNREACH)
+ {
+ if (contimeout && (time(NULL) - start_time) > contimeout)
+ {
+ _cupsLangPuts(stderr, _("ERROR: Printer not responding!\n"));
+ return (CUPS_BACKEND_FAILED);
}
- if (error == ECONNREFUSED || error == EHOSTDOWN ||
- error == EHOSTUNREACH)
- {
- fprintf(stderr, "INFO: Network host \'%s\' is busy; will retry in %d seconds...\n",
- hostname, delay);
- sleep(delay);
+ recoverable = 1;
- if (delay < 30)
- delay += 5;
- }
- else
- {
- perror("ERROR: Unable to connect to printer (retrying in 30 seconds)");
- sleep(30);
- }
+ _cupsLangPrintf(stderr,
+ _("WARNING: recoverable: Network host \'%s\' is busy; "
+ "will retry in %d seconds...\n"),
+ hostname, delay);
+
+ sleep(delay);
+
+ if (delay < 30)
+ delay += 5;
}
else
- break;
+ {
+ recoverable = 1;
+
+ _cupsLangPrintf(stderr, "DEBUG: Connection error: %s\n",
+ strerror(errno));
+ _cupsLangPuts(stderr,
+ _("ERROR: recoverable: Unable to connect to printer; "
+ "will retry in 30 seconds...\n"));
+ sleep(30);
+ }
}
+ else
+ break;
+ }
+ if (recoverable)
+ {
/*
- * Now that we are "connected" to the port, ignore SIGTERM so that we
- * can finish out any page data the driver sends (e.g. to eject the
- * current page... Only ignore SIGTERM if we are printing data from
- * stdin (otherwise you can't cancel raw jobs...)
+ * If we've shown a recoverable error make sure the printer proxies
+ * have a chance to see the recovered message. Not pretty but
+ * necessary for now...
*/
- if (argc < 7)
+ fputs("INFO: recovered: \n", stderr);
+ sleep(5);
+ }
+
+ fputs("STATE: -connecting-to-device\n", stderr);
+ _cupsLangPrintf(stderr, _("INFO: Connected to %s...\n"), hostname);
+
+#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...
+ */
+
+ if ((snmp_fd = _cupsSNMPOpen(addr->addr.addr.sa_family)) >= 0)
+ {
+ if (backendSNMPSupplies(snmp_fd, &(addr->addr), &start_count, NULL))
{
-#ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */
- sigset(SIGTERM, SIG_IGN);
-#elif defined(HAVE_SIGACTION)
- memset(&action, 0, sizeof(action));
+ /*
+ * No, close it...
+ */
- sigemptyset(&action.sa_mask);
- action.sa_handler = SIG_IGN;
- sigaction(SIGTERM, &action, NULL);
-#else
- signal(SIGTERM, SIG_IGN);
-#endif /* HAVE_SIGSET */
+ _cupsSNMPClose(snmp_fd);
+ snmp_fd = -1;
}
+ }
+ else
+ start_count = 0;
- /*
- * Finally, send the print file...
- */
+ /*
+ * Print everything...
+ */
+
+ tbytes = 0;
+ while (copies > 0 && tbytes >= 0)
+ {
copies --;
- if (fp != 0)
+ if (print_fd != 0)
{
fputs("PAGE: 1 1\n", stderr);
- lseek(fp, 0, SEEK_SET);
+ lseek(print_fd, 0, SEEK_SET);
}
- fputs("INFO: Connected to host, sending print job...\n", stderr);
+ tbytes = backendRunLoop(print_fd, device_fd, snmp_fd, &(addr->addr), 1,
+ backendNetworkSideCB);
- tbytes = 0;
- while ((nbytes = read(fp, buffer, sizeof(buffer))) > 0)
- {
- /*
- * Write the print data to the printer...
- */
+ 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);
+ }
- tbytes += nbytes;
- bufptr = buffer;
+ /*
+ * Wait up to 5 seconds to get any pending back-channel data...
+ */
- while (nbytes > 0)
- {
- /*
- * See if we are ready to read or write...
- */
+ wait_time = time(NULL) + 5;
+ while (wait_time >= time(NULL))
+ if (wait_bc(device_fd, 1) <= 0)
+ break;
- do
- {
- FD_ZERO(&input);
- FD_SET(fd, &input);
- FD_ZERO(&output);
- FD_SET(fd, &output);
- }
- while (select(fd + 1, &input, &output, NULL, NULL) < 0);
-
- if (FD_ISSET(fd, &input))
- {
- /*
- * Read backchannel data...
- */
-
- if ((rbytes = recv(fd, resource, sizeof(resource), 0)) > 0)
- {
- fprintf(stderr, "DEBUG: Received %d bytes of back-channel data!\n",
- rbytes);
- cupsBackChannelWrite(resource, rbytes, 1.0);
- }
- }
+ if (waiteof)
+ {
+ /*
+ * Shutdown the socket and wait for the other end to finish...
+ */
- if (FD_ISSET(fd, &output))
- {
- /*
- * Write print data...
- */
-
- if ((wbytes = send(fd, bufptr, nbytes, 0)) < 0)
- {
- /*
- * Check for retryable errors...
- */
-
- if (errno != EAGAIN && errno != EINTR)
- {
- perror("ERROR: Unable to send print file to printer");
- break;
- }
- }
- else
- {
- /*
- * Update count and pointer...
- */
-
- nbytes -= wbytes;
- bufptr += wbytes;
- }
- }
- }
+ _cupsLangPuts(stderr,
+ _("INFO: Print file sent, waiting for printer to finish...\n"));
- if (wbytes < 0)
- break;
+ shutdown(device_fd, 1);
- if (argc > 6)
- fprintf(stderr, "INFO: Sending print file, %lu bytes...\n",
- (unsigned long)tbytes);
- }
+ while (wait_bc(device_fd, 90) > 0);
+ }
- if (waiteof)
- {
- /*
- * Shutdown the socket and wait for the other end to finish...
- */
+ /*
+ * Collect the final page count as needed...
+ */
- fputs("INFO: Print file sent, waiting for printer to finish...\n", stderr);
+ if (snmp_fd >= 0 &&
+ !backendSNMPSupplies(snmp_fd, &(addr->addr), &page_count, NULL) &&
+ page_count > start_count)
+ fprintf(stderr, "PAGE: total %d\n", page_count - start_count);
- shutdown(fd, 1);
+ /*
+ * Close the socket connection...
+ */
- for (;;)
- {
- /*
- * Wait a maximum of 90 seconds for backchannel data or a closed
- * connection...
- */
+ close(device_fd);
- timeout.tv_sec = 90;
- timeout.tv_usec = 0;
+ httpAddrFreeList(addrlist);
- FD_ZERO(&input);
- FD_SET(fd, &input);
+ /*
+ * Close the input file and return...
+ */
- #ifdef __hpux
- if (select(fd + 1, (int *)&input, NULL, NULL, &timeout) > 0)
- #else
- if (select(fd + 1, &input, NULL, NULL, &timeout) > 0)
- #endif /* __hpux */
- {
- /*
- * Grab the data coming back and spit it out to stderr...
- */
-
- if ((rbytes = recv(fd, resource, sizeof(resource), 0)) > 0)
- {
- fprintf(stderr, "DEBUG: Received %d bytes of back-channel data!\n",
- rbytes);
- cupsBackChannelWrite(resource, rbytes, 1.0);
- }
- else
- break;
- }
- else
- break;
- }
- }
+ if (print_fd != 0)
+ close(print_fd);
- /*
- * Close the socket connection...
- */
+ if (tbytes >= 0)
+ _cupsLangPuts(stderr, _("INFO: Ready to print.\n"));
- close(fd);
- }
+ return (tbytes < 0 ? CUPS_BACKEND_FAILED : CUPS_BACKEND_OK);
+}
+
+
+/*
+ * 'wait_bc()' - Wait for back-channel data...
+ */
+
+static int /* O - # bytes read or -1 on error */
+wait_bc(int device_fd, /* I - Socket */
+ int secs) /* I - Seconds to wait */
+{
+ struct timeval timeout; /* Timeout for select() */
+ fd_set input; /* Input set for select() */
+ ssize_t bytes; /* Number of back-channel bytes read */
+ char buffer[1024]; /* Back-channel buffer */
- httpAddrFreeList(addrlist);
/*
- * Close the input file and return...
+ * Wait up to "secs" seconds for backchannel data...
*/
- if (fp != 0)
- close(fp);
+ timeout.tv_sec = secs;
+ timeout.tv_usec = 0;
- if (wbytes >= 0)
- fputs("INFO: Ready to print.\n", stderr);
+ FD_ZERO(&input);
+ FD_SET(device_fd, &input);
- return (wbytes < 0 ? CUPS_BACKEND_FAILED : CUPS_BACKEND_OK);
+ if (select(device_fd + 1, &input, NULL, NULL, &timeout) > 0)
+ {
+ /*
+ * Grab the data coming back and spit it out to stderr...
+ */
+
+ if ((bytes = read(device_fd, buffer, sizeof(buffer))) > 0)
+ {
+ fprintf(stderr, "DEBUG: Received %d bytes of back-channel data!\n",
+ (int)bytes);
+ cupsBackChannelWrite(buffer, bytes, 1.0);
+ }
+
+ return (bytes);
+ }
+ else
+ return (-1);
}
/*
- * End of "$Id: socket.c 5099 2006-02-13 02:46:10Z mike $".
+ * End of "$Id: socket.c 7583 2008-05-16 17:47:16Z mike $".
*/
projects / thirdparty / cups.git / blobdiff