timeadd: Adds a timestamp before every line

2 files changed, 32 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 41c3812..c5daf30 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@ xcbviewfs: xcbviewfs.c colorlookup.c
 	$(CC) $(XCBV_CFLAGS) -o $@ $< colorlookup.c $(XCBV_LDFLAGS)
 
 %: %.c
-	$(CC) -g -Wall -Werror -Wextra -o $(OUTDIR)$@ $<
+	$(CC) -g -Wall -Werror -Wextra $(CFLAGS) -o $(OUTDIR)$@ $<
 
 colorlookup.c: $(RGB_TXT) colorlookupgen
 	./colorlookupgen $(RGB_TXT) > $@
diff --git a/timeadd.c b/timeadd.c
new file mode 100644
index 0000000..061a0ae
--- /dev/null
+++ b/timeadd.c
@@ -0,0 +1,31 @@
+/*
+ * Adds a timestamp before every line.
+ *
+ * Author: Peter Wu <lekensteyn@gmail.com>
+ * Date: 2013-10-04
+ */
+#include <stdio.h>
+#include <time.h>
+#include <string.h>
+#include <stdlib.h>
+
+int main() {
+	char buf[4096];
+
+	while (fgets(buf, sizeof(buf), stdin) != NULL) {
+		char *newline = strrchr(buf, '\n');
+		struct timespec tp;
+
+		clock_gettime(CLOCK_MONOTONIC, &tp);
+
+		if (newline)
+			*newline = '\0';
+
+		printf("[%5llu.%06lu] %s\n",
+			(long long) tp.tv_sec,
+			tp.tv_nsec / 1000,
+			buf);
+	}
+
+	return 0;
+}