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9f14d10366
The parsing code made some strange assumptions about what is a printer name, and what is a comment. Autobuild-User: Jeremy Allison <jra@samba.org> Autobuild-Date: Fri May 20 22:52:23 CEST 2011 on sn-devel-104
129 lines
3.8 KiB
C
129 lines
3.8 KiB
C
/*
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Unix SMB/CIFS implementation.
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printcap parsing
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Copyright (C) Karl Auer 1993-1998
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Re-working by Martin Kiff, 1994
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Re-written again by Andrew Tridgell
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Modified for SVID support by Norm Jacobs, 1997
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Modified for CUPS support by Michael Sweet, 1999
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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 3 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, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* This module contains code to parse and cache printcap data, possibly
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* in concert with the CUPS/SYSV/AIX-specific code found elsewhere.
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*
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* The way this module looks at the printcap file is very simplistic.
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* Only the local printcap file is inspected (no searching of NIS
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* databases etc).
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*
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* There are assumed to be one or more printer names per record, held
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* as a set of sub-fields separated by vertical bar symbols ('|') in the
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* first field of the record. The field separator is assumed to be a colon
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* ':' and the record separator a newline.
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*
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* Lines ending with a backspace '\' are assumed to flag that the following
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* line is a continuation line so that a set of lines can be read as one
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* printcap entry.
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*
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* A line stating with a hash '#' is assumed to be a comment and is ignored
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* Comments are discarded before the record is strung together from the
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* set of continuation lines.
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*
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* Opening a pipe for "lpc status" and reading that would probably
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* be pretty effective. Code to do this already exists in the freely
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* distributable PCNFS server code.
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*/
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/* printcap parsing specific code moved here from printing/pcap.c */
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#include "includes.h"
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#include "system/filesys.h"
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#include "printing/pcap.h"
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/* handle standard printcap - moved from pcap_printer_fn() */
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bool std_pcap_cache_reload(const char *pcap_name)
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{
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XFILE *pcap_file;
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char *pcap_line;
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if ((pcap_file = x_fopen(pcap_name, O_RDONLY, 0)) == NULL) {
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DEBUG(0, ("Unable to open printcap file %s for read!\n", pcap_name));
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return false;
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}
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for (; (pcap_line = fgets_slash(NULL, 1024, pcap_file)) != NULL; free(pcap_line)) {
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char name[MAXPRINTERLEN+1];
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char comment[62];
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char *p, *q;
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if (*pcap_line == '#' || *pcap_line == 0)
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continue;
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/* now we have a real printer line - cut at the first : */
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if ((p = strchr_m(pcap_line, ':')) != NULL)
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*p = 0;
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/*
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* now find the most likely printer name and comment
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* this is pure guesswork, but it's better than nothing
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*/
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for (*name = *comment = 0, p = pcap_line; p != NULL; p = q) {
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bool has_punctuation;
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if ((q = strchr_m(p, '|')) != NULL)
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*q++ = 0;
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has_punctuation = (strchr_m(p, ' ') ||
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strchr_m(p, '\t') ||
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strchr_m(p, '"') ||
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strchr_m(p, '\'') ||
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strchr_m(p, ';') ||
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strchr_m(p, ',') ||
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strchr_m(p, '(') ||
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strchr_m(p, ')'));
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if (strlen(p) > strlen(comment) && has_punctuation) {
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strlcpy(comment, p, sizeof(comment));
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continue;
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}
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if (strlen(p) <= MAXPRINTERLEN && *name == '\0' && !has_punctuation) {
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strlcpy(name, p, sizeof(name));
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continue;
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}
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if (!strchr_m(comment, ' ') &&
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strlen(p) > strlen(comment)) {
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strlcpy(comment, p, sizeof(comment));
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continue;
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}
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}
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if (*name && !pcap_cache_add(name, comment, NULL)) {
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x_fclose(pcap_file);
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return false;
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}
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}
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x_fclose(pcap_file);
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return true;
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}
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