2 Unix SMB/Netbios implementation.
5 Copyright (C) Karl Auer 1993-1998
7 Re-working by Martin Kiff, 1994
9 Re-written again by Andrew Tridgell
11 Modified for SVID support by Norm Jacobs, 1997
13 Modified for CUPS support by Michael Sweet, 1999
15 This program is free software; you can redistribute it and/or modify
16 it under the terms of the GNU General Public License as published by
17 the Free Software Foundation; either version 2 of the License, or
18 (at your option) any later version.
20 This program is distributed in the hope that it will be useful,
21 but WITHOUT ANY WARRANTY; without even the implied warranty of
22 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 GNU General Public License for more details.
25 You should have received a copy of the GNU General Public License
26 along with this program; if not, write to the Free Software
27 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
31 * Parse printcap file.
33 * This module does exactly one thing - it looks into the printcap file
34 * and tells callers if a specified string appears as a printer name.
36 * The way this module looks at the printcap file is very simplistic.
37 * Only the local printcap file is inspected (no searching of NIS
40 * There are assumed to be one or more printer names per record, held
41 * as a set of sub-fields separated by vertical bar symbols ('|') in the
42 * first field of the record. The field separator is assumed to be a colon
43 * ':' and the record separator a newline.
45 * Lines ending with a backspace '\' are assumed to flag that the following
46 * line is a continuation line so that a set of lines can be read as one
49 * A line stating with a hash '#' is assumed to be a comment and is ignored
50 * Comments are discarded before the record is strung together from the
51 * set of continuation lines.
53 * Opening a pipe for "lpc status" and reading that would probably
54 * be pretty effective. Code to do this already exists in the freely
55 * distributable PCNFS server code.
57 * Modified to call SVID/XPG4 support if printcap name is set to "lpstat"
58 * in smb.conf under Solaris.
60 * Modified to call CUPS support if printcap name is set to "cups"
68 extern int DEBUGLEVEL;
71 /* ******************************************
72 Extend for AIX system and qconfig file
73 from 'boulard@univ-rennes1.fr
74 ****************************************** */
75 static int strlocate(char *xpLine,char *xpS)
86 if (strncmp(p,xpS,iS) == 0) {iRet =1;break;};
90 /*DEBUG(3,(" strlocate %s in line '%s',ret=%d\n",xpS,xpLine,iRet));*/
96 /* ******************************************************************* */
97 /* * Scan qconfig and search all virtual printer (device printer) * */
98 /* ******************************************************************* */
99 static void ScanQconfig_fn(char *psz,void (*fn)(char *, char *))
104 pstring name,comment;
109 if ((pfile = x_fopen(psz, O_RDONLY, 0)) == NULL)
111 DEBUG(0,( "Unable to open qconfig file %s for read!\n", psz));
116 /* scan qconfig file for searching <printername>: */
117 for (;(line = fgets_slash(NULL,sizeof(pstring),pfile)); free(line))
119 if (*line == '*' || *line == 0)
123 case 0: /* locate an entry */
124 if (*line == '\t' || *line == ' ') continue;
125 if ((p=strchr_m(line,':')))
128 p = strtok(line,":");
129 if (strcmp(p,"bsh")!=0)
137 case 1: /* scanning device stanza */
138 if (*line == '*' || *line == 0) continue;
139 if (*line != '\t' && *line != ' ')
141 /* name is found without stanza device */
142 /* probably a good printer ??? */
148 if (strlocate(line,"backend"))
150 /* it's a device, not a virtual printer*/
153 else if (strlocate(line,"device"))
155 /* it's a good virtual printer */
166 /* Scan qconfig file and locate de printername */
168 static BOOL ScanQconfig(char *psz,char *pszPrintername)
177 if ((pszPrintername!= NULL) && ((iLg = strlen(pszPrintername)) > 0))
178 pName = malloc(iLg+10);
181 DEBUG(0,(" Unable to allocate memory for printer %s\n",pszPrintername));
184 if ((pfile = x_fopen(psz, O_RDONLY, 0)) == NULL)
186 DEBUG(0,( "Unable to open qconfig file %s for read!\n", psz));
190 slprintf(pName, iLg + 9, "%s:",pszPrintername);
192 /*DEBUG(3,( " Looking for entry %s\n",pName));*/
194 /* scan qconfig file for searching <printername>: */
195 for (;(line = fgets_slash(NULL,sizeof(pstring),pfile)); free(line))
197 if (*line == '*' || *line == 0)
201 case 0: /* scanning entry */
202 if (strncmp(line,pName,iLg) == 0)
208 case 1: /* scanning device stanza */
209 if (*line == '*' || *line == 0) continue;
210 if (*line != '\t' && *line != ' ')
212 /* name is found without stanza device */
213 /* probably a good printer ??? */
220 if (strlocate(line,"backend"))
222 /* it's a device, not a virtual printer*/
225 else if (strlocate(line,"device"))
227 /* it's a good virtual printer */
243 /***************************************************************************
244 Scan printcap file pszPrintcapname for a printer called pszPrintername.
245 Return True if found, else False. Returns False on error, too, after logging
246 the error at level 0. For generality, the printcap name may be passed - if
247 passed as NULL, the configuration will be queried for the name. pszPrintername
248 must be in DOS codepage.
249 The xxx_printername_ok functions need fixing to understand they are being
250 given a DOS codepage. FIXME !! JRA.
251 ***************************************************************************/
252 BOOL pcap_printername_ok(char *pszPrintername, char *pszPrintcapname)
259 if (pszPrintername == NULL || pszPrintername[0] == '\0')
261 DEBUG(0,( "Attempt to locate null printername! Internal error?\n"));
265 /* only go looking if no printcap name supplied */
266 if ((psz = pszPrintcapname) == NULL || psz[0] == '\0')
267 if (((psz = lp_printcapname()) == NULL) || (psz[0] == '\0'))
269 DEBUG(0,( "No printcap file name configured!\n"));
274 if (strequal(psz, "cups"))
275 return (cups_printername_ok(pszPrintername));
276 #endif /* HAVE_CUPS */
279 if (strequal(psz, "lpstat"))
280 return (sysv_printername_ok(pszPrintername));
284 if (strlocate(psz,"/qconfig"))
285 return(ScanQconfig(psz,pszPrintername));
288 if ((pfile = x_fopen(psz, O_RDONLY, 0)) == NULL)
290 DEBUG(0,( "Unable to open printcap file %s for read!\n", psz));
294 for (;(line = fgets_slash(NULL,sizeof(pstring),pfile)); free(line))
296 if (*line == '#' || *line == 0)
299 /* now we have a real printer line - cut it off at the first : */
300 p = strchr_m(line,':');
303 /* now just check if the name is in the list */
304 /* NOTE: I avoid strtok as the fn calling this one may be using it */
307 if ((q = strchr_m(p,'|'))) *q++ = 0;
309 if (strequal(p,pszPrintername))
311 /* normalise the case */
312 pstrcpy(pszPrintername,p);
326 /***************************************************************************
327 run a function on each printer name in the printcap file. The function is
328 passed the primary name and the comment (if possible). Note the fn() takes
329 strings in DOS codepage. This means the xxx_printer_fn() calls must be fixed
330 to return DOS codepage. FIXME !! JRA.
331 ***************************************************************************/
332 void pcap_printer_fn(void (*fn)(char *, char *))
334 pstring name,comment;
340 /* only go looking if no printcap name supplied */
341 if (((psz = lp_printcapname()) == NULL) || (psz[0] == '\0'))
343 DEBUG(0,( "No printcap file name configured!\n"));
348 if (strequal(psz, "cups")) {
352 #endif /* HAVE_CUPS */
355 if (strequal(psz, "lpstat")) {
362 if (strlocate(psz,"/qconfig"))
364 ScanQconfig_fn(psz,fn);
369 if ((pfile = x_fopen(psz, O_RDONLY, 0)) == NULL)
371 DEBUG(0,( "Unable to open printcap file %s for read!\n", psz));
375 for (;(line = fgets_slash(NULL,sizeof(pstring),pfile)); free(line))
377 if (*line == '#' || *line == 0)
380 /* now we have a real printer line - cut it off at the first : */
381 p = strchr_m(line,':');
384 /* now find the most likely printer name and comment
385 this is pure guesswork, but it's better than nothing */
390 BOOL has_punctuation;
391 if ((q = strchr_m(p,'|'))) *q++ = 0;
393 has_punctuation = (strchr_m(p,' ') || strchr_m(p,'\t') || strchr_m(p,'(') || strchr_m(p,')'));
395 if (strlen(p)>strlen(comment) && has_punctuation)
397 StrnCpy(comment,p,sizeof(comment)-1);
401 if (strlen(p) <= MAXPRINTERLEN && strlen(p)>strlen(name) && !has_punctuation)
403 if (!*comment) pstrcpy(comment,name);
408 if (!strchr_m(comment,' ') &&
409 strlen(p) > strlen(comment))
411 StrnCpy(comment,p,sizeof(comment)-1);
417 name[MAXPRINTERLEN] = 0;