Hello all
In case anyone is interested: I've added logging capabilities to
Slock. The patch is attached. It will enable logging of all locks,
unlocks and failed unlock attempts to ~/.slock.log, if compiled with
the ENABLE_LOGGING flag.
--Danilo
diff -up /tmp/slock-0.9/config.mk slock-0.9/config.mk
--- /tmp/slock-0.9/config.mk 2008-07-29 20:22:46.000000000 +0200
+++ slock-0.9/config.mk 2010-11-11 16:55:19.164582000 +0100
@@ -14,7 +14,7 @@ INCS = -I. -I/usr/include -I${X11INC}
LIBS = -L/usr/lib -lc -lcrypt -L${X11LIB} -lX11 -lXext
# flags
-CPPFLAGS = -DVERSION=\"${VERSION}\" -DHAVE_SHADOW_H
+CPPFLAGS = -DVERSION=\"${VERSION}\" -DHAVE_SHADOW_H -DENABLE_LOGGING
CFLAGS = -std=c99 -pedantic -Wall -Os ${INCS} ${CPPFLAGS}
LDFLAGS = -s ${LIBS}
Only in slock-0.9: slock
diff -up /tmp/slock-0.9/slock.c slock-0.9/slock.c
--- /tmp/slock-0.9/slock.c 2008-07-29 20:22:46.000000000 +0200
+++ slock-0.9/slock.c 2010-11-11 16:42:10.181248668 +0100
@@ -22,6 +22,10 @@
#include <bsd_auth.h>
#endif
+#ifdef ENABLE_LOGGING
+#include <time.h>
+#endif
+
static void
die(const char *errstr, ...) {
va_list ap;
@@ -123,6 +127,18 @@ main(int argc, char **argv) {
len = 0;
XSync(dpy, False);
+#ifdef ENABLE_LOGGING
+ FILE *logfile;
+ char logfile_path[1024];
+ if (snprintf(logfile_path, sizeof logfile_path, "%s/%s", getenv("HOME"), ".slock.log")
+ >= sizeof logfile_path)
+ die("slock: log file path too long");
+ time_t rawtime;
+ time(&rawtime);
+ logfile = fopen(logfile_path, "a+");
+ fprintf(logfile, "Locked: %s", ctime(&rawtime));
+#endif
+
/* main event loop */
while(running && !XNextEvent(dpy, &ev)) {
if(len == 0 && DPMSCapable(dpy)) {
@@ -150,8 +166,13 @@ main(int argc, char **argv) {
#else
running = strcmp(crypt(passwd, pws), pws);
#endif
- if (running != 0)
+ if (running != 0) {
XBell(dpy, 100);
+#ifdef ENABLE_LOGGING
+ time(&rawtime);
+ fprintf(logfile, "Failed unlock attempt: %s", ctime(&rawtime));
+#endif
+ }
len = 0;
break;
case XK_Escape:
@@ -174,5 +195,12 @@ main(int argc, char **argv) {
XFreePixmap(dpy, pmap);
XDestroyWindow(dpy, w);
XCloseDisplay(dpy);
+
+#ifdef ENABLE_LOGGING
+ time(&rawtime);
+ fprintf(logfile, "Unlocked: %s", strcat(ctime(&rawtime), "\n"));
+ fclose(logfile);
+#endif
+
return 0;
}
Only in slock-0.9: slock.o
