diff options
Diffstat (limited to 'source4/client/smbspool.c')
| -rw-r--r-- | source4/client/smbspool.c | 353 |
1 files changed, 353 insertions, 0 deletions
diff --git a/source4/client/smbspool.c b/source4/client/smbspool.c new file mode 100644 index 0000000000..df867d5fef --- /dev/null +++ b/source4/client/smbspool.c @@ -0,0 +1,353 @@ +/* + Unix SMB/CIFS implementation. + SMB backend for the Common UNIX Printing System ("CUPS") + Copyright 1999 by Easy Software Products + Copyright Andrew Tridgell 1994-1998 + Copyright Andrew Bartlett 2002 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "includes.h" + +/* + * Local functions... + */ + +static void list_devices(void); +static struct smbcli_state *smb_connect(const char *, const char *, const char **, const char *, const char *, const char *); +static int smb_print(struct smbcli_state *, char *, FILE *); + + +/* + * 'main()' - Main entry for SMB backend. + */ + + int /* O - Exit status */ + main(int argc, /* I - Number of command-line arguments */ + char *argv[]) /* I - Command-line arguments */ +{ + int i; /* Looping var */ + int copies; /* Number of copies */ + char uri[1024], /* URI */ + *sep, /* Pointer to separator */ + *password; /* Password */ + const char *username, /* Username */ + *server, /* Server name */ + *printer; /* Printer name */ + const char *workgroup; /* Workgroup */ + FILE *fp; /* File to print */ + int status=0; /* Status of LPD job */ + struct smbcli_state *cli; /* SMB interface */ + struct loadparm_context *lp_ctx; + + /* we expect the URI in argv[0]. Detect the case where it is in argv[1] and cope */ + if (argc > 2 && strncmp(argv[0],"smb://", 6) && !strncmp(argv[1],"smb://", 6)) { + argv++; + argc--; + } + + if (argc == 1) + { + /* + * NEW! In CUPS 1.1 the backends are run with no arguments to list the + * available devices. These can be devices served by this backend + * or any other backends (i.e. you can have an SNMP backend that + * is only used to enumerate the available network printers... :) + */ + + list_devices(); + return (0); + } + + if (argc < 6 || argc > 7) + { + fprintf(stderr, "Usage: %s [DEVICE_URI] job-id user title copies options [file]\n", + argv[0]); + fputs(" The DEVICE_URI environment variable can also contain the\n", stderr); + fputs(" destination printer:\n", stderr); + fputs("\n", stderr); + fputs(" smb://[username:password@][workgroup/]server/printer\n", stderr); + return (1); + } + + /* + * If we have 7 arguments, print the file named on the command-line. + * Otherwise, print data from stdin... + */ + + if (argc == 6) + { + /* + * Print from Copy stdin to a temporary file... + */ + + fp = stdin; + copies = 1; + } + else if ((fp = fopen(argv[6], "rb")) == NULL) + { + perror("ERROR: Unable to open print file"); + return (1); + } + else + copies = atoi(argv[4]); + + /* + * Find the URI... + */ + + if (strncmp(argv[0], "smb://", 6) == 0) + strncpy(uri, argv[0], sizeof(uri) - 1); + else if (getenv("DEVICE_URI") != NULL) + strncpy(uri, getenv("DEVICE_URI"), sizeof(uri) - 1); + else + { + fputs("ERROR: No device URI found in argv[0] or DEVICE_URI environment variable!\n", stderr); + return (1); + } + + uri[sizeof(uri) - 1] = '\0'; + + /* + * Extract the destination from the URI... + */ + + if ((sep = strrchr_m(uri, '@')) != NULL) + { + username = uri + 6; + *sep++ = '\0'; + + server = sep; + + /* + * Extract password as needed... + */ + + if ((password = strchr_m(username, ':')) != NULL) + *password++ = '\0'; + else + password = ""; + } + else + { + username = ""; + password = ""; + server = uri + 6; + } + + if ((sep = strchr_m(server, '/')) == NULL) + { + fputs("ERROR: Bad URI - need printer name!\n", stderr); + return (1); + } + + *sep++ = '\0'; + printer = sep; + + if ((sep = strchr_m(printer, '/')) != NULL) + { + /* + * Convert to smb://[username:password@]workgroup/server/printer... + */ + + *sep++ = '\0'; + + workgroup = server; + server = printer; + printer = sep; + } + else + workgroup = NULL; + + /* + * Setup the SAMBA server state... + */ + + setup_logging(argv[0], DEBUG_STDOUT); + + lp_ctx = loadparm_init(talloc_autofree_context()); + + if (!lp_load(lp_ctx, dyn_CONFIGFILE)) { + fprintf(stderr, "ERROR: Can't load %s - run testparm to debug it\n", lp_config_file()); + return (1); + } + + if (workgroup == NULL) + workgroup = lp_workgroup(lp_ctx); + + do + { + if ((cli = smb_connect(workgroup, server, lp_smb_ports(lp_ctx), printer, username, password)) == NULL) + { + if (getenv("CLASS") == NULL) + { + fprintf(stderr, "ERROR: Unable to connect to SAMBA host, will retry in 60 seconds..."); + sleep (60); + } + else + { + fprintf(stderr, "ERROR: Unable to connect to SAMBA host, trying next printer..."); + return (1); + } + } + } + while (cli == NULL); + + /* + * Now that we are connected to the server, 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 (argc < 7) + CatchSignal(SIGTERM, SIG_IGN); + + /* + * Queue the job... + */ + + for (i = 0; i < copies; i ++) + if ((status = smb_print(cli, argv[3] /* title */, fp)) != 0) + break; + + talloc_free(cli); + + /* + * Return the queue status... + */ + + return (status); +} + + +/* + * 'list_devices()' - List the available printers seen on the network... + */ + +static void +list_devices(void) +{ + /* + * Eventually, search the local workgroup for available hosts and printers. + */ + + puts("network smb \"Unknown\" \"Windows Printer via SAMBA\""); +} + + +/* + * 'smb_connect()' - Return a connection to a server. + */ + +static struct smbcli_state * /* O - SMB connection */ +smb_connect(const char *workgroup, /* I - Workgroup */ + const char *server, /* I - Server */ + const char **ports, /* I - Ports */ + const char *share, /* I - Printer */ + const char *username, /* I - Username */ + const char *password) /* I - Password */ +{ + struct smbcli_state *c; /* New connection */ + char *myname; /* Client name */ + NTSTATUS nt_status; + + /* + * Get the names and addresses of the client and server... + */ + + myname = get_myname(); + + nt_status = smbcli_full_connection(NULL, &c, myname, server, ports, share, + NULL, username, workgroup, password, NULL); + + free(myname); + if (!NT_STATUS_IS_OK(nt_status)) { + fprintf(stderr, "ERROR: Connection failed with error %s\n", nt_errstr(nt_status)); + return NULL; + } + + /* + * Return the new connection... + */ + + return (c); +} + + +/* + * 'smb_print()' - Queue a job for printing using the SMB protocol. + */ + +static int /* O - 0 = success, non-0 = failure */ +smb_print(struct smbcli_state *cli, /* I - SMB connection */ + char *title, /* I - Title/job name */ + FILE *fp) /* I - File to print */ +{ + int fnum; /* File number */ + int nbytes, /* Number of bytes read */ + tbytes; /* Total bytes read */ + char buffer[8192], /* Buffer for copy */ + *ptr; /* Pointer into tile */ + + + /* + * Sanitize the title... + */ + + for (ptr = title; *ptr; ptr ++) + if (!isalnum((int)*ptr) && !isspace((int)*ptr)) + *ptr = '_'; + + /* + * Open the printer device... + */ + + if ((fnum = smbcli_open(cli, title, O_RDWR | O_CREAT | O_TRUNC, DENY_NONE)) == -1) + { + fprintf(stderr, "ERROR: %s opening remote file %s\n", + smbcli_errstr(cli), title); + return (1); + } + + /* + * Copy the file to the printer... + */ + + if (fp != stdin) + rewind(fp); + + tbytes = 0; + + while ((nbytes = fread(buffer, 1, sizeof(buffer), fp)) > 0) + { + if (smbcli_write(cli, fnum, 0, buffer, tbytes, nbytes) != nbytes) + { + fprintf(stderr, "ERROR: Error writing file: %s\n", smbcli_errstr(cli)); + break; + } + + tbytes += nbytes; + } + + if (!smbcli_close(cli, fnum)) + { + fprintf(stderr, "ERROR: %s closing remote file %s\n", + smbcli_errstr(cli), title); + return (1); + } + else + return (0); +} |