mirror of
https://github.com/samba-team/samba.git
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2a90c448bd
- make not finding smb.conf a level 1 message, not level 0. Most of our
tools handle no smb.conf, and those that don't should check for the
specific parameters they need, or use the defaults
(This used to be commit 8c17b61f8e
)
354 lines
8.2 KiB
C
354 lines
8.2 KiB
C
/*
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Unix SMB/CIFS implementation.
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SMB backend for the Common UNIX Printing System ("CUPS")
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Copyright 1999 by Easy Software Products
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Copyright Andrew Tridgell 1994-1998
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Copyright Andrew Bartlett 2002
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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/*
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* Local functions...
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*/
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static void list_devices(void);
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static struct smbcli_state *smb_connect(const char *, const char *, const char *, const char *, const char *);
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static int smb_print(struct smbcli_state *, char *, FILE *);
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/*
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* 'main()' - Main entry for SMB backend.
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*/
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int /* O - Exit status */
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main(int argc, /* I - Number of command-line arguments */
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char *argv[]) /* I - Command-line arguments */
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{
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int i; /* Looping var */
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int copies; /* Number of copies */
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char uri[1024], /* URI */
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*sep, /* Pointer to separator */
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*password; /* Password */
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const char *username, /* Username */
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*server, /* Server name */
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*printer; /* Printer name */
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const char *workgroup; /* Workgroup */
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FILE *fp; /* File to print */
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int status=0; /* Status of LPD job */
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struct smbcli_state *cli; /* SMB interface */
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/* we expect the URI in argv[0]. Detect the case where it is in argv[1] and cope */
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if (argc > 2 && strncmp(argv[0],"smb://", 6) && !strncmp(argv[1],"smb://", 6)) {
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argv++;
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argc--;
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}
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if (argc == 1)
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{
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/*
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* NEW! In CUPS 1.1 the backends are run with no arguments to list the
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* available devices. These can be devices served by this backend
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* or any other backends (i.e. you can have an SNMP backend that
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* is only used to enumerate the available network printers... :)
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*/
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list_devices();
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return (0);
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}
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if (argc < 6 || argc > 7)
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{
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fprintf(stderr, "Usage: %s [DEVICE_URI] job-id user title copies options [file]\n",
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argv[0]);
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fputs(" The DEVICE_URI environment variable can also contain the\n", stderr);
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fputs(" destination printer:\n", stderr);
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fputs("\n", stderr);
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fputs(" smb://[username:password@][workgroup/]server/printer\n", stderr);
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return (1);
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}
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/*
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* If we have 7 arguments, print the file named on the command-line.
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* Otherwise, print data from stdin...
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*/
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if (argc == 6)
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{
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/*
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* Print from Copy stdin to a temporary file...
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*/
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fp = stdin;
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copies = 1;
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}
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else if ((fp = fopen(argv[6], "rb")) == NULL)
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{
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perror("ERROR: Unable to open print file");
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return (1);
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}
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else
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copies = atoi(argv[4]);
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/*
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* Find the URI...
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*/
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if (strncmp(argv[0], "smb://", 6) == 0)
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strncpy(uri, argv[0], sizeof(uri) - 1);
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else if (getenv("DEVICE_URI") != NULL)
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strncpy(uri, getenv("DEVICE_URI"), sizeof(uri) - 1);
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else
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{
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fputs("ERROR: No device URI found in argv[0] or DEVICE_URI environment variable!\n", stderr);
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return (1);
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}
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uri[sizeof(uri) - 1] = '\0';
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/*
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* Extract the destination from the URI...
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*/
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if ((sep = strrchr_m(uri, '@')) != NULL)
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{
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username = uri + 6;
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*sep++ = '\0';
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server = sep;
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/*
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* Extract password as needed...
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*/
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if ((password = strchr_m(username, ':')) != NULL)
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*password++ = '\0';
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else
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password = "";
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}
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else
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{
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username = "";
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password = "";
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server = uri + 6;
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}
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if ((sep = strchr_m(server, '/')) == NULL)
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{
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fputs("ERROR: Bad URI - need printer name!\n", stderr);
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return (1);
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}
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*sep++ = '\0';
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printer = sep;
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if ((sep = strchr_m(printer, '/')) != NULL)
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{
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/*
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* Convert to smb://[username:password@]workgroup/server/printer...
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*/
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*sep++ = '\0';
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workgroup = server;
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server = printer;
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printer = sep;
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}
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else
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workgroup = NULL;
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/*
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* Setup the SAMBA server state...
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*/
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setup_logging("smbspool", DEBUG_STDOUT);
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if (!lp_load(dyn_CONFIGFILE))
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{
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fprintf(stderr, "ERROR: Can't load %s - run testparm to debug it\n", dyn_CONFIGFILE);
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return (1);
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}
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if (workgroup == NULL)
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workgroup = lp_workgroup();
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load_interfaces();
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do
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{
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if ((cli = smb_connect(workgroup, server, printer, username, password)) == NULL)
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{
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if (getenv("CLASS") == NULL)
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{
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fprintf(stderr, "ERROR: Unable to connect to SAMBA host, will retry in 60 seconds...");
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sleep (60);
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}
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else
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{
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fprintf(stderr, "ERROR: Unable to connect to SAMBA host, trying next printer...");
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return (1);
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}
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}
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}
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while (cli == NULL);
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/*
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* Now that we are connected to the server, ignore SIGTERM so that we
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* can finish out any page data the driver sends (e.g. to eject the
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* current page... Only ignore SIGTERM if we are printing data from
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* stdin (otherwise you can't cancel raw jobs...)
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*/
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if (argc < 7)
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CatchSignal(SIGTERM, SIG_IGN);
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/*
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* Queue the job...
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*/
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for (i = 0; i < copies; i ++)
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if ((status = smb_print(cli, argv[3] /* title */, fp)) != 0)
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break;
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talloc_free(cli);
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/*
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* Return the queue status...
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*/
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return (status);
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}
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/*
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* 'list_devices()' - List the available printers seen on the network...
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*/
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static void
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list_devices(void)
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{
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/*
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* Eventually, search the local workgroup for available hosts and printers.
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*/
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puts("network smb \"Unknown\" \"Windows Printer via SAMBA\"");
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}
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/*
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* 'smb_connect()' - Return a connection to a server.
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*/
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static struct smbcli_state * /* O - SMB connection */
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smb_connect(const char *workgroup, /* I - Workgroup */
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const char *server, /* I - Server */
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const char *share, /* I - Printer */
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const char *username, /* I - Username */
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const char *password) /* I - Password */
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{
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struct smbcli_state *c; /* New connection */
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char *myname; /* Client name */
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NTSTATUS nt_status;
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/*
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* Get the names and addresses of the client and server...
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*/
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myname = get_myname();
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nt_status = smbcli_full_connection(NULL, &c, myname, server, 0, share, NULL,
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username, workgroup, password, NULL);
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free(myname);
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if (!NT_STATUS_IS_OK(nt_status)) {
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fprintf(stderr, "ERROR: Connection failed with error %s\n", nt_errstr(nt_status));
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return NULL;
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}
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/*
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* Return the new connection...
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*/
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return (c);
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}
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/*
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* 'smb_print()' - Queue a job for printing using the SMB protocol.
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*/
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static int /* O - 0 = success, non-0 = failure */
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smb_print(struct smbcli_state *cli, /* I - SMB connection */
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char *title, /* I - Title/job name */
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FILE *fp) /* I - File to print */
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{
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int fnum; /* File number */
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int nbytes, /* Number of bytes read */
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tbytes; /* Total bytes read */
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char buffer[8192], /* Buffer for copy */
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*ptr; /* Pointer into tile */
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/*
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* Sanitize the title...
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*/
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for (ptr = title; *ptr; ptr ++)
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if (!isalnum((int)*ptr) && !isspace((int)*ptr))
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*ptr = '_';
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/*
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* Open the printer device...
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*/
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if ((fnum = smbcli_open(cli, title, O_RDWR | O_CREAT | O_TRUNC, DENY_NONE)) == -1)
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{
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fprintf(stderr, "ERROR: %s opening remote file %s\n",
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smbcli_errstr(cli), title);
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return (1);
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}
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/*
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* Copy the file to the printer...
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*/
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if (fp != stdin)
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rewind(fp);
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tbytes = 0;
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while ((nbytes = fread(buffer, 1, sizeof(buffer), fp)) > 0)
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{
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if (smbcli_write(cli, fnum, 0, buffer, tbytes, nbytes) != nbytes)
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{
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fprintf(stderr, "ERROR: Error writing file: %s\n", smbcli_errstr(cli));
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break;
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}
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tbytes += nbytes;
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}
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if (!smbcli_close(cli, fnum))
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{
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fprintf(stderr, "ERROR: %s closing remote file %s\n",
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smbcli_errstr(cli), title);
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return (1);
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}
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else
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return (0);
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}
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