| 1 | /*
|
|---|
| 2 | Unix SMB/CIFS implementation.
|
|---|
| 3 | printcap parsing
|
|---|
| 4 | Copyright (C) Karl Auer 1993-1998
|
|---|
| 5 |
|
|---|
| 6 | Re-working by Martin Kiff, 1994
|
|---|
| 7 |
|
|---|
| 8 | Re-written again by Andrew Tridgell
|
|---|
| 9 |
|
|---|
| 10 | Modified for SVID support by Norm Jacobs, 1997
|
|---|
| 11 |
|
|---|
| 12 | Modified for CUPS support by Michael Sweet, 1999
|
|---|
| 13 |
|
|---|
| 14 | This program is free software; you can redistribute it and/or modify
|
|---|
| 15 | it under the terms of the GNU General Public License as published by
|
|---|
| 16 | the Free Software Foundation; either version 3 of the License, or
|
|---|
| 17 | (at your option) any later version.
|
|---|
| 18 |
|
|---|
| 19 | This program is distributed in the hope that it will be useful,
|
|---|
| 20 | but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 21 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|---|
| 22 | GNU General Public License for more details.
|
|---|
| 23 |
|
|---|
| 24 | You should have received a copy of the GNU General Public License
|
|---|
| 25 | along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|---|
| 26 | */
|
|---|
| 27 |
|
|---|
| 28 | /*
|
|---|
| 29 | * This module contains code to parse and cache printcap data, possibly
|
|---|
| 30 | * in concert with the CUPS/SYSV/AIX-specific code found elsewhere.
|
|---|
| 31 | *
|
|---|
| 32 | * The way this module looks at the printcap file is very simplistic.
|
|---|
| 33 | * Only the local printcap file is inspected (no searching of NIS
|
|---|
| 34 | * databases etc).
|
|---|
| 35 | *
|
|---|
| 36 | * There are assumed to be one or more printer names per record, held
|
|---|
| 37 | * as a set of sub-fields separated by vertical bar symbols ('|') in the
|
|---|
| 38 | * first field of the record. The field separator is assumed to be a colon
|
|---|
| 39 | * ':' and the record separator a newline.
|
|---|
| 40 | *
|
|---|
| 41 | * Lines ending with a backspace '\' are assumed to flag that the following
|
|---|
| 42 | * line is a continuation line so that a set of lines can be read as one
|
|---|
| 43 | * printcap entry.
|
|---|
| 44 | *
|
|---|
| 45 | * A line stating with a hash '#' is assumed to be a comment and is ignored
|
|---|
| 46 | * Comments are discarded before the record is strung together from the
|
|---|
| 47 | * set of continuation lines.
|
|---|
| 48 | *
|
|---|
| 49 | * Opening a pipe for "lpc status" and reading that would probably
|
|---|
| 50 | * be pretty effective. Code to do this already exists in the freely
|
|---|
| 51 | * distributable PCNFS server code.
|
|---|
| 52 | */
|
|---|
| 53 |
|
|---|
| 54 | /* printcap parsing specific code moved here from printing/pcap.c */
|
|---|
| 55 |
|
|---|
| 56 |
|
|---|
| 57 | #include "includes.h"
|
|---|
| 58 | #include "system/filesys.h"
|
|---|
| 59 | #include "printing/pcap.h"
|
|---|
| 60 |
|
|---|
| 61 | /* handle standard printcap - moved from pcap_printer_fn() */
|
|---|
| 62 | bool std_pcap_cache_reload(const char *pcap_name)
|
|---|
| 63 | {
|
|---|
| 64 | XFILE *pcap_file;
|
|---|
| 65 | char *pcap_line;
|
|---|
| 66 |
|
|---|
| 67 | if ((pcap_file = x_fopen(pcap_name, O_RDONLY, 0)) == NULL) {
|
|---|
| 68 | DEBUG(0, ("Unable to open printcap file %s for read!\n", pcap_name));
|
|---|
| 69 | return false;
|
|---|
| 70 | }
|
|---|
| 71 |
|
|---|
| 72 | for (; (pcap_line = fgets_slash(NULL, 1024, pcap_file)) != NULL; free(pcap_line)) {
|
|---|
| 73 | char name[MAXPRINTERLEN+1];
|
|---|
| 74 | char comment[62];
|
|---|
| 75 | char *p, *q;
|
|---|
| 76 |
|
|---|
| 77 | if (*pcap_line == '#' || *pcap_line == 0)
|
|---|
| 78 | continue;
|
|---|
| 79 |
|
|---|
| 80 | /* now we have a real printer line - cut at the first : */
|
|---|
| 81 | if ((p = strchr_m(pcap_line, ':')) != NULL)
|
|---|
| 82 | *p = 0;
|
|---|
| 83 |
|
|---|
| 84 | /*
|
|---|
| 85 | * now find the most likely printer name and comment
|
|---|
| 86 | * this is pure guesswork, but it's better than nothing
|
|---|
| 87 | */
|
|---|
| 88 | for (*name = *comment = 0, p = pcap_line; p != NULL; p = q) {
|
|---|
| 89 | bool has_punctuation;
|
|---|
| 90 |
|
|---|
| 91 | if ((q = strchr_m(p, '|')) != NULL)
|
|---|
| 92 | *q++ = 0;
|
|---|
| 93 |
|
|---|
| 94 | has_punctuation = (strchr_m(p, ' ') ||
|
|---|
| 95 | strchr_m(p, '\t') ||
|
|---|
| 96 | strchr_m(p, '"') ||
|
|---|
| 97 | strchr_m(p, '\'') ||
|
|---|
| 98 | strchr_m(p, ';') ||
|
|---|
| 99 | strchr_m(p, ',') ||
|
|---|
| 100 | strchr_m(p, '(') ||
|
|---|
| 101 | strchr_m(p, ')'));
|
|---|
| 102 |
|
|---|
| 103 | if (strlen(p) > strlen(comment) && has_punctuation) {
|
|---|
| 104 | strlcpy(comment, p, sizeof(comment));
|
|---|
| 105 | continue;
|
|---|
| 106 | }
|
|---|
| 107 |
|
|---|
| 108 | if (strlen(p) <= MAXPRINTERLEN && *name == '\0' && !has_punctuation) {
|
|---|
| 109 | strlcpy(name, p, sizeof(name));
|
|---|
| 110 | continue;
|
|---|
| 111 | }
|
|---|
| 112 |
|
|---|
| 113 | if (!strchr_m(comment, ' ') &&
|
|---|
| 114 | strlen(p) > strlen(comment)) {
|
|---|
| 115 | strlcpy(comment, p, sizeof(comment));
|
|---|
| 116 | continue;
|
|---|
| 117 | }
|
|---|
| 118 | }
|
|---|
| 119 |
|
|---|
| 120 | if (*name && !pcap_cache_add(name, comment, NULL)) {
|
|---|
| 121 | x_fclose(pcap_file);
|
|---|
| 122 | return false;
|
|---|
| 123 | }
|
|---|
| 124 | }
|
|---|
| 125 |
|
|---|
| 126 | x_fclose(pcap_file);
|
|---|
| 127 | return true;
|
|---|
| 128 | }
|
|---|
