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authorSimo Sorce <ssorce@redhat.com>2010-05-13 14:23:23 -0400
committerGünther Deschner <gd@samba.org>2010-05-14 14:14:55 +0200
commitf36396f90f925ff1f41e6e58c0a51245eab21784 (patch)
tree042299b8eb5d2f8a6ce38c3b1ab40c5bc5632d4a /source3/printing/print_standard.c
parent566418f1a1c6514333965069cda435598fb0a2d4 (diff)
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Move standard printcap parsing to print_standard.c
Signed-off-by: Günther Deschner <gd@samba.org>
Diffstat (limited to 'source3/printing/print_standard.c')
-rw-r--r--source3/printing/print_standard.c129
1 files changed, 129 insertions, 0 deletions
diff --git a/source3/printing/print_standard.c b/source3/printing/print_standard.c
new file mode 100644
index 0000000000..91d1c336e3
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+++ b/source3/printing/print_standard.c
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+/*
+ Unix SMB/CIFS implementation.
+ printcap parsing
+ Copyright (C) Karl Auer 1993-1998
+
+ Re-working by Martin Kiff, 1994
+
+ Re-written again by Andrew Tridgell
+
+ Modified for SVID support by Norm Jacobs, 1997
+
+ Modified for CUPS support by Michael Sweet, 1999
+
+ 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/>.
+*/
+
+/*
+ * This module contains code to parse and cache printcap data, possibly
+ * in concert with the CUPS/SYSV/AIX-specific code found elsewhere.
+ *
+ * The way this module looks at the printcap file is very simplistic.
+ * Only the local printcap file is inspected (no searching of NIS
+ * databases etc).
+ *
+ * There are assumed to be one or more printer names per record, held
+ * as a set of sub-fields separated by vertical bar symbols ('|') in the
+ * first field of the record. The field separator is assumed to be a colon
+ * ':' and the record separator a newline.
+ *
+ * Lines ending with a backspace '\' are assumed to flag that the following
+ * line is a continuation line so that a set of lines can be read as one
+ * printcap entry.
+ *
+ * A line stating with a hash '#' is assumed to be a comment and is ignored
+ * Comments are discarded before the record is strung together from the
+ * set of continuation lines.
+ *
+ * Opening a pipe for "lpc status" and reading that would probably
+ * be pretty effective. Code to do this already exists in the freely
+ * distributable PCNFS server code.
+ */
+
+/* printcap parsing specific code moved here from printing/pcap.c */
+
+
+#include "includes.h"
+
+/* handle standard printcap - moved from pcap_printer_fn() */
+bool std_pcap_cache_reload(const char *pcap_name)
+{
+ XFILE *pcap_file;
+ char *pcap_line;
+
+ if ((pcap_file = x_fopen(pcap_name, O_RDONLY, 0)) == NULL) {
+ DEBUG(0, ("Unable to open printcap file %s for read!\n", pcap_name));
+ return false;
+ }
+
+ for (; (pcap_line = fgets_slash(NULL, 1024, pcap_file)) != NULL; free(pcap_line)) {
+ char name[MAXPRINTERLEN+1];
+ char comment[62];
+ char *p, *q;
+
+ if (*pcap_line == '#' || *pcap_line == 0)
+ continue;
+
+ /* now we have a real printer line - cut at the first : */
+ if ((p = strchr_m(pcap_line, ':')) != NULL)
+ *p = 0;
+
+ /*
+ * now find the most likely printer name and comment
+ * this is pure guesswork, but it's better than nothing
+ */
+ for (*name = *comment = 0, p = pcap_line; p != NULL; p = q) {
+ bool has_punctuation;
+
+ if ((q = strchr_m(p, '|')) != NULL)
+ *q++ = 0;
+
+ has_punctuation = (strchr_m(p, ' ') ||
+ strchr_m(p, '\t') ||
+ strchr_m(p, '(') ||
+ strchr_m(p, ')'));
+
+ if (strlen(p) > strlen(comment) && has_punctuation) {
+ strlcpy(comment, p, sizeof(comment));
+ continue;
+ }
+
+ if (strlen(p) <= MAXPRINTERLEN &&
+ strlen(p) > strlen(name) && !has_punctuation) {
+ if (!*comment) {
+ strlcpy(comment, name, sizeof(comment));
+ }
+ strlcpy(name, p, sizeof(name));
+ continue;
+ }
+
+ if (!strchr_m(comment, ' ') &&
+ strlen(p) > strlen(comment)) {
+ strlcpy(comment, p, sizeof(comment));
+ continue;
+ }
+ }
+
+ comment[60] = 0;
+ name[MAXPRINTERLEN] = 0;
+
+ if (*name && !pcap_cache_add(name, comment)) {
+ x_fclose(pcap_file);
+ return false;
+ }
+ }
+
+ x_fclose(pcap_file);
+ return true;
+}