From b232db436b7b9343c336ef941c47cf8b107d1f7e Mon Sep 17 00:00:00 2001
From: Hiltjo Posthuma <hiltjo@codemadness.org>
Date: Sun, 24 Dec 2017 12:58:44 +0100
Subject: format programs: ignore fields with an invalid time

this makes sure tail -f with multiple files ignores the ==> file <== lines too.
---
 sfeed_frames.c | 3 ++-
 sfeed_gph.c    | 3 ++-
 sfeed_html.c   | 3 ++-
 sfeed_mbox.c   | 3 ++-
 sfeed_plain.c  | 3 ++-
 5 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/sfeed_frames.c b/sfeed_frames.c
index 7df8528..34d6d4e 100644
--- a/sfeed_frames.c
+++ b/sfeed_frames.c
@@ -145,7 +145,8 @@ printfeed(FILE *fpitems, FILE *fpin, struct feed *f)
 			break;
 
 		parsedtime = 0;
-		strtotime(fields[FieldUnixTimestamp], &parsedtime);
+		if (strtotime(fields[FieldUnixTimestamp], &parsedtime))
+			continue;
 		if (!(tm = localtime(&parsedtime)))
 			err(1, "localtime");
 
diff --git a/sfeed_gph.c b/sfeed_gph.c
index addb457..df2b5b2 100644
--- a/sfeed_gph.c
+++ b/sfeed_gph.c
@@ -95,7 +95,8 @@ printfeed(FILE *fp, const char *feedname)
 			break;
 
 		parsedtime = 0;
-		strtotime(fields[FieldUnixTimestamp], &parsedtime);
+		if (strtotime(fields[FieldUnixTimestamp], &parsedtime))
+			continue;
 	        if (!(tm = localtime(&parsedtime)))
 			err(1, "localtime");
 
diff --git a/sfeed_html.c b/sfeed_html.c
index 9ddc44f..bdeb3dc 100644
--- a/sfeed_html.c
+++ b/sfeed_html.c
@@ -39,7 +39,8 @@ printfeed(FILE *fp, struct feed *f)
 			break;
 
 		parsedtime = 0;
-		strtotime(fields[FieldUnixTimestamp], &parsedtime);
+		if (strtotime(fields[FieldUnixTimestamp], &parsedtime))
+			continue;
 	        if (!(tm = localtime(&parsedtime)))
 			err(1, "localtime");
 
diff --git a/sfeed_mbox.c b/sfeed_mbox.c
index 9b9b5cf..995890b 100644
--- a/sfeed_mbox.c
+++ b/sfeed_mbox.c
@@ -125,7 +125,8 @@ printfeed(FILE *fp, const char *feedname)
 		if (!parseline(line, fields))
 			break;
 		parsedtime = 0;
-		strtotime(fields[FieldUnixTimestamp], &parsedtime);
+		if (strtotime(fields[FieldUnixTimestamp], &parsedtime))
+			continue;
 		/* can't convert: default to formatted time for time_t 0. */
 		if (!gmtime_r(&parsedtime, &tm) ||
 		    !strftime(timebuf, sizeof(timebuf),
diff --git a/sfeed_plain.c b/sfeed_plain.c
index b88a776..b2f5236 100644
--- a/sfeed_plain.c
+++ b/sfeed_plain.c
@@ -27,7 +27,8 @@ printfeed(FILE *fp, const char *feedname)
 			break;
 
 		parsedtime = 0;
-		strtotime(fields[FieldUnixTimestamp], &parsedtime);
+		if (strtotime(fields[FieldUnixTimestamp], &parsedtime))
+			continue;
 	        if (!(tm = localtime(&parsedtime)))
 			err(1, "localtime");
 
-- 
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