wendy

commit cff44da04995e9f4eda7483b47047295d345f1e6
parent 0176b6dc43a8dfb6682c3a76634e7b78e8354ed6
Author: Willy Goiffon <dev@z3bra.org>
Date:   Fri, 13 Mar 2020 11:04:36 +0100

Add -l flag to list numeric values of events

Diffstat:
M
wendy.1
 | 
4
+++-
M
wendy.c
 | 
22
++++++++++++++++++++--

2 files changed, 23 insertions(+), 3 deletions(-)
diff --git a/wendy.1 b/wendy.1
@@ -6,7 +6,7 @@
 .Nd inotify based event watcher
 .Sh SYNOPSIS
 .Nm wendy
-.Op Fl adrv
+.Op Fl adlrv
 .Op Fl m Ar mask
 .Op Fl w Ar inode
 .Op command Op Ar args...
@@ -24,6 +24,8 @@ Directory mode. Only directories will be watched, while regular
 files will be skipped (even if explicitely set with -w). See IN_ONLYDIR
 from
 .Xr inotify 7 .
+.It Fl l
+List events along with their numeric values.
 .It Fl r
 Recursive mode. Everytime an IN_CREATE event is triggered,
 a watch is added on the target file/directory.
diff --git a/wendy.c b/wendy.c
@@ -22,7 +22,7 @@ struct watcher {
 
 SLIST_HEAD(watchers, watcher) head;
 
-char *evname[] = {
+char *evname[IN_ALL_EVENTS] = {
 	[IN_ACCESS] =        "ACCESS",
 	[IN_MODIFY] =        "MODIFY",
 	[IN_ATTRIB] =        "ATTRIB",
@@ -38,7 +38,7 @@ char *evname[] = {
 };
 
 int verbose = 0;
-int aflag = 0, dflag = 0, rflag = 0;
+int aflag = 0, dflag = 0, lflag = 0, rflag = 0;
 
 void
 usage(char *name)
@@ -54,6 +54,16 @@ basename(char *p)
 	return *b ? b + 1 : p;
 }
 
+int
+listevents(char **ev)
+{
+	int i;
+	for (i=0; i<IN_ALL_EVENTS; i++)
+		if (ev[i])
+			printf("%s\t%d\n", ev[i], i);
+	return 0;
+}
+
 struct watcher *
 getwatcher(struct watchers *h, int wd)
 {
@@ -147,6 +157,9 @@ main (int argc, char **argv)
 	case 'd':
 		dflag = 1;
 		break;
+	case 'l':
+		lflag = 1;
+		break;
 	case 'r':
 		rflag = 1;
 		break;
@@ -163,6 +176,11 @@ main (int argc, char **argv)
 		usage(argv0);
 	} ARGEND;
 
+	if (lflag) {
+		listevents(evname);
+		return 0;
+	}
+
 	/* remaining arguments is the command to run on event */
 	cmd = (argc > 0) ? argv : NULL;