From 35fd53f6f2f5c911532572e889333c4b43927afa Mon Sep 17 00:00:00 2001
From: bakkeby <bakkeby@gmail.com>
Date: Thu, 9 Sep 2021 11:07:56 +0200
Subject: [PATCH] Adding secret password patch

---
 README.md     |  5 ++++-
 config.def.h  |  7 +++++++
 patches.def.h |  5 +++++
 slock.c       | 21 +++++++++++++++++++++
 4 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 3e1779faaf18a03f84551f7c43cbd1d5b9f750cc..34f0e86bbc8126a716852b2d05b9d259d58aa879 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ slock tool, how to install it and how it works.
 
 ### Changelog:
 
-2021-09-09 - Added the failure-command patch
+2021-09-09 - Added the failure-command and secret-password patches
 
 2021-06-08 - Added the color message patch
 
@@ -88,6 +88,9 @@ slock tool, how to install it and how it works.
       - this can be useful if you forgot to disable xautolock during an activity that requires no
         input (e.g. reading text, watching video, etc.)
 
+   - [secret-password](https://tools.suckless.org/slock/patches/secret-password/)
+      - allows for commands to be executed when the user enters special passwords
+
    - [terminalkeys](https://tools.suckless.org/slock/patches/terminalkeys/)
       - adds key commands that are commonly used in terminal applications (in particular the login
         prompt)
diff --git a/config.def.h b/config.def.h
index 8ed45ace27cbf0f9fb2f1d9f78af1214f6fb13fd..c009a752dbad843325d52bd6baba15cc483b5aae 100644
--- a/config.def.h
+++ b/config.def.h
@@ -65,6 +65,13 @@ static const int failcount = 0;
 static const char *failcommand = "shutdown";
 #endif // FAILURE_COMMAND_PATCH
 
+#if SECRET_PASSWORD_PATCH
+static const secretpass scom[] = {
+	/* Password             command */
+	{ "shutdown",           "doas poweroff"},
+};
+#endif // SECRET_PASSWORD_PATCH
+
 #if BLUR_PIXELATED_SCREEN_PATCH
 /* Enable blur */
 #define BLUR
diff --git a/patches.def.h b/patches.def.h
index 790427c7c9356a3123bd305b4922f9c129520128..ff68ce80b56d2f4f708ba1db56ff3fcde4ea50ec 100644
--- a/patches.def.h
+++ b/patches.def.h
@@ -102,6 +102,11 @@
  */
 #define QUICKCANCEL_PATCH 0
 
+/* This patch allows for commands to be executed when the user enters special passwords.
+ * https://tools.suckless.org/slock/patches/secret-password/
+ */
+#define SECRET_PASSWORD_PATCH 0
+
 /* Adds key commands that are commonly used in terminal applications (in particular the
  * login prompt) to slock.
  * https://tools.suckless.org/slock/patches/terminalkeys/
diff --git a/slock.c b/slock.c
index 6f781ab135bd6c0d4bc248f64fe92d123a2770b8..bb8efa53d729799c4cd20f321e0186abc9e297f8 100644
--- a/slock.c
+++ b/slock.c
@@ -1,5 +1,6 @@
 /* See LICENSE file for license details. */
 #define _XOPEN_SOURCE 500
+#define LENGTH(X) (sizeof X / sizeof X[0])
 #if HAVE_SHADOW_H
 #include <shadow.h>
 #endif
@@ -77,6 +78,14 @@ struct lock {
 	unsigned long colors[NUMCOLS];
 };
 
+#if SECRET_PASSWORD_PATCH
+typedef struct secretpass secretpass;
+struct secretpass {
+	char *pass;
+	char *command;
+};
+#endif // SECRET_PASSWORD_PATCH
+
 struct xrandr {
 	int active;
 	int evbase;
@@ -245,6 +254,18 @@ readpw(Display *dpy, struct xrandr *rr, struct lock **locks, int nscreens,
 			case XK_Return:
 				passwd[len] = '\0';
 				errno = 0;
+
+				#if SECRET_PASSWORD_PATCH
+				for (int i = 0; i < LENGTH(scom); i++) {
+					if (strcmp(scom[i].pass, passwd) == 0) {
+						system(scom[i].command);
+						#if FAILURE_COMMAND_PATCH
+						failtrack = -1;
+						#endif // FAILURE_COMMAND_PATCH
+					}
+				}
+				#endif // SECRET_PASSWORD_PATCH
+
 				#if PAMAUTH_PATCH
 				retval = pam_start(pam_service, hash, &pamc, &pamh);
 				color = PAM;