From 4290816865ccc42a26255c53843100b4f3291d2c Mon Sep 17 00:00:00 2001
From: nidhijainpnp <12njain06@gmail.com>
Date: Wed, 29 Jul 2020 11:18:12 +0530
Subject: [PATCH] changes in driverless.c file to list IPPS printers

(cherry picked from commit d3384bb12278cbdf845540bf744268244d895c32)
---
 utils/driverless.1 |  7 ++++++-
 utils/driverless.c | 14 ++++++++++++--
 2 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/utils/driverless.1 b/utils/driverless.1
index 189a612f5..364421725 100644
--- a/utils/driverless.1
+++ b/utils/driverless.1
@@ -5,7 +5,7 @@
 .SH SYNOPSIS
 .nf
 .fam C
-\fBdriverless\fP [\fB-h\fP | \fB--help\fP | \fB--version\fP] [\fB-d\fP | \fB-v\fP | \fB--debug\fP] [\fBlist\fP] | [\fBcat\fP \fIdriver URI\fP] | [\fIIPP printer URI\fP]
+\fBdriverless\fP [\fB-h\fP | \fB--help\fP | \fB--version\fP] [\fB-d\fP | \fB-v\fP | \fB--debug\fP] [\fBlist\fP] [\fB_ipps._tcp\fP] | [\fBcat\fP \fIdriver URI\fP] | [\fIIPP printer URI\fP]
 
 .fam T
 .fi
@@ -52,6 +52,11 @@ List the driver URIs and metadata for all available IPP printers suitable
 for driverless PPD file generation (to be used by CUPS).
 .TP
 .B
+\fB_ipps._tcp\fP
+List the driver URIs and metadata for all available IPPS printers suitable
+for driverless PPD file generation (to be used by CUPS).
+.TP
+.B
 \fBcat\fP \fIdriver URI\fP
 Generate the PPD file for the supplied \fIdriver URI\fP from the output of "list"
 (to be used by CUPS).
diff --git a/utils/driverless.c b/utils/driverless.c
index 4ec1f1d94..45aab1226 100644
--- a/utils/driverless.c
+++ b/utils/driverless.c
@@ -90,6 +90,8 @@ list_printers (int mode)
 
   i = 0;
   ippfind_argv[i++] = "ippfind";
+  if(mode == 3)
+    ippfind_argv[i++] = "_ipps._tcp";
   ippfind_argv[i++] = "-T";               /* Bonjour poll timeout */
   ippfind_argv[i++] = "3";                /* 3 seconds */
   ippfind_argv[i++] = "!";                /* ! --txt printer-type */
@@ -384,8 +386,8 @@ list_printers (int mode)
 	snprintf(driverless_info, 255, "%s", driverless_support_strs[driverless_support]);
 	driverless_info[255] = '\0';
 
-	if (mode == 1)
-	  /* Call with "list" argument (PPD generator in list mode */
+	if (mode == 1 || mode == 3)
+	  /* Call with "list" argument or with "_ipps._tcp" argument (PPD generator in list mode)   */
 	  printf("\"driverless:%s\" en \"%s\" \"%s, %s, cups-filters " VERSION
 		 "\" \"%s\"\n", service_uri, make, make_and_model, driverless_info, device_id);
 	else
@@ -630,6 +632,11 @@ int main(int argc, char*argv[]) {
 	   driverless printing */
 	debug = 1;
 	exit(list_printers(1));
+      } else if (!strcasecmp(argv[i], "_ipps._tcp")) {
+	/* List a driver URI and metadata for "IPPS" printer suitable for
+	   driverless printing */
+	debug = 1;
+	exit(list_printers(3));
       } else if (!strncasecmp(argv[i], "cat", 3)) {
 	/* Generate the PPD file for the given driver URI */
 	debug = 1;
@@ -688,6 +695,9 @@ int main(int argc, char*argv[]) {
 	  "  list                    List the driver URIs and metadata for all available\n"
 	  "                          IPP printers supporting driverless printing (to be\n"
 	  "                          used by CUPS).\n"
+    "  _ipps._tcp              List the driver URIs and metadata for all available\n"
+	  "                          IPPS printers supporting driverless printing (to be\n"
+	  "                          used by CUPS).\n"
 	  "  cat <driver URI>        Generate the PPD file for the driver URI\n"
 	  "                          <driver URI> (to be used by CUPS).\n"
 	  "  <printer URI>           Generate the PPD file for the IPP printer URI\n"
-- 
2.47.3