iw: add option to print human readable event time
Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Link: https://lore.kernel.org/r/20210206150432.10456-1-markus.theil@tu-ilmenau.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/event.c b/event.c
index 61395f8..14f101b 100644
--- a/event.c
+++ b/event.c
@@ -3,6 +3,7 @@
#include <net/if.h>
#include <errno.h>
#include <inttypes.h>
+#include <time.h>
#include "iw.h"
static int no_seq_check(struct nl_msg *msg, void *arg)
@@ -905,12 +906,13 @@
int rem_nst;
__u16 status;
- if (args->time || args->reltime) {
+ if (args->time || args->reltime || args->ctime) {
unsigned long long usecs, previous;
previous = 1000000ULL * args->ts.tv_sec + args->ts.tv_usec;
gettimeofday(&args->ts, NULL);
usecs = 1000000ULL * args->ts.tv_sec + args->ts.tv_usec;
+
if (args->reltime) {
if (!args->have_ts) {
usecs = 0;
@@ -918,7 +920,17 @@
} else
usecs -= previous;
}
- printf("%llu.%06llu: ", usecs/1000000, usecs % 1000000);
+
+ if (args->ctime) {
+ struct tm *tm = localtime(&args->ts.tv_sec);
+ char buf[255];
+
+ memset(buf, 0, 255);
+ strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", tm);
+ printf("[%s.%06lu]: ", buf, args->ts.tv_usec);
+ } else {
+ printf("%llu.%06llu: ", usecs/1000000, usecs % 1000000);
+ }
}
nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
@@ -1407,6 +1419,7 @@
enum id_input id)
{
struct print_event_args args;
+ int num_time_formats = 0;
int ret;
memset(&args, 0, sizeof(args));
@@ -1417,17 +1430,22 @@
while (argc > 0) {
if (strcmp(argv[0], "-f") == 0)
args.frame = true;
- else if (strcmp(argv[0], "-t") == 0)
+ else if (strcmp(argv[0], "-t") == 0) {
+ num_time_formats++;
args.time = true;
- else if (strcmp(argv[0], "-r") == 0)
+ } else if (strcmp(argv[0], "-T") == 0) {
+ num_time_formats++;
+ args.ctime = true;
+ } else if (strcmp(argv[0], "-r") == 0) {
+ num_time_formats++;
args.reltime = true;
- else
+ } else
return 1;
argc--;
argv++;
}
- if (args.time && args.reltime)
+ if (num_time_formats > 1)
return 1;
if (argc)
@@ -1442,5 +1460,6 @@
TOPLEVEL(event, "[-t|-r] [-f]", 0, 0, CIB_NONE, print_events,
"Monitor events from the kernel.\n"
"-t - print timestamp\n"
+ "-T - print absolute, human-readable timestamp\n"
"-r - print relative timestamp\n"
"-f - print full frame for auth/assoc etc.");
diff --git a/iw.h b/iw.h
index 807adec..7f7f4fc 100644
--- a/iw.h
+++ b/iw.h
@@ -181,7 +181,7 @@
struct print_event_args {
struct timeval ts; /* internal */
bool have_ts; /* must be set false */
- bool frame, time, reltime;
+ bool frame, time, reltime, ctime;
};
__u32 listen_events(struct nl80211_state *state,
