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-rw-r--r--source4/printing/print_svid.c144
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diff --git a/source4/printing/print_svid.c b/source4/printing/print_svid.c
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+++ b/source4/printing/print_svid.c
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+/*
+ * Copyright (C) 1997-1998 by Norm Jacobs, Colorado Springs, Colorado, USA
+ * Copyright (C) 1997-1998 by Sun Microsystem, Inc.
+ * All Rights Reserved
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ * This module implements support for gathering and comparing available
+ * printer information on a SVID or XPG4 compliant system. It does this
+ * through the use of the SVID/XPG4 command "lpstat(1)".
+ *
+ * The expectations is that execution of the command "lpstat -v" will
+ * generate responses in the form of:
+ *
+ * device for serial: /dev/term/b
+ * system for fax: server
+ * system for color: server (as printer chroma)
+ */
+
+
+#include "includes.h"
+
+#ifdef SYSV
+
+typedef struct printer {
+ char *name;
+ struct printer *next;
+} printer_t;
+static printer_t *printers = NULL;
+
+static void populate_printers(void)
+{
+ char **lines;
+ int i;
+
+ lines = file_lines_pload("/usr/bin/lpstat -v", NULL);
+ if (!lines) return;
+
+ for (i=0;lines[i];i++) {
+ printer_t *ptmp;
+ char *name, *tmp;
+ char *buf = lines[i];
+
+ /* eat "system/device for " */
+ if (((tmp = strchr_m(buf, ' ')) == NULL) ||
+ ((tmp = strchr_m(++tmp, ' ')) == NULL))
+ continue;
+
+ /*
+ * In case we're only at the "for ".
+ */
+
+ if(!strncmp("for ",++tmp,4)) {
+ tmp=strchr_m(tmp, ' ');
+ tmp++;
+ }
+
+ /* Eat whitespace. */
+
+ while(*tmp == ' ')
+ ++tmp;
+
+ /*
+ * On HPUX there is an extra line that can be ignored.
+ * d.thibadeau 2001/08/09
+ */
+ if(!strncmp("remote to",tmp,9))
+ continue;
+
+ name = tmp;
+
+ /* truncate the ": ..." */
+ if ((tmp = strchr_m(name, ':')) != NULL)
+ *tmp = '\0';
+
+ /* add it to the cache */
+ if ((ptmp = malloc(sizeof (*ptmp))) != NULL) {
+ ZERO_STRUCTP(ptmp);
+ if((ptmp->name = strdup(name)) == NULL)
+ DEBUG(0,("populate_printers: malloc fail in strdup !\n"));
+ ptmp->next = printers;
+ printers = ptmp;
+ } else {
+ DEBUG(0,("populate_printers: malloc fail for ptmp\n"));
+ }
+ }
+
+ file_lines_free(lines);
+}
+
+
+/*
+ * provide the equivalent of pcap_printer_fn() for SVID/XPG4 conforming
+ * systems. It was unclear why pcap_printer_fn() was tossing names longer
+ * than 8 characters. I suspect that its a protocol limit, but amazingly
+ * names longer than 8 characters appear to work with my test
+ * clients (Win95/NT).
+ */
+void sysv_printer_fn(void (*fn)(char *, char *))
+{
+ printer_t *tmp;
+
+ if (printers == NULL)
+ populate_printers();
+ for (tmp = printers; tmp != NULL; tmp = tmp->next)
+ (fn)(tmp->name, "");
+}
+
+
+/*
+ * provide the equivalent of pcap_printername_ok() for SVID/XPG4 conforming
+ * systems.
+ */
+int sysv_printername_ok(const char *name)
+{
+ printer_t *tmp;
+
+ if (printers == NULL)
+ populate_printers();
+ for (tmp = printers; tmp != NULL; tmp = tmp->next)
+ if (strcmp(tmp->name, name) == 0)
+ return (True);
+ return (False);
+}
+
+#else
+/* this keeps fussy compilers happy */
+ void print_svid_dummy(void);
+ void print_svid_dummy(void) {}
+#endif