From b82884f23c2dc9e9079d73777a3296eed0a6839b Mon Sep 17 00:00:00 2001
From: XANTRONIX Development <dev@xantronix.com>
Date: Sat, 16 Feb 2019 01:39:43 -0600
Subject: [PATCH] ohhh yeah that's the good shit

---
 examples/Makefile  |  5 +++--
 examples/capture.c |  2 +-
 src/capture.c      | 14 +++++++-------
 3 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/examples/Makefile b/examples/Makefile
index 507be12..361dfd9 100644
--- a/examples/Makefile
+++ b/examples/Makefile
@@ -6,6 +6,7 @@ INCLUDE_PATH	= ../include
 
 CFLAGS		+= -I$(INCLUDE_PATH)
 LDFLAGS		= -L../src -lhexagram
+STATIC		= ../src/libhexagram.a
 
 EXAMPLES	= capture convert pcapread replay
 
@@ -13,8 +14,8 @@ RM		= /bin/rm
 
 all: $(EXAMPLES)
 
-$(EXAMPLES): %: %.c
-	$(CC) $(CFLAGS) $< -o $@ ../src/libhexagram.a
+$(EXAMPLES): %: %.c $(STATIC)
+	$(CC) $(CFLAGS) $< -o $@ $(STATIC)
 
 clean:
 	$(RM) -f $(EXAMPLES)
diff --git a/examples/capture.c b/examples/capture.c
index 16c43a3..2bed423 100644
--- a/examples/capture.c
+++ b/examples/capture.c
@@ -44,7 +44,7 @@ int main(int argc, char **argv) {
             goto error_capture_open;
         }
     } else if (argc == 3) {
-        if ((capture = hexagram_capture_open_file(argv[2], O_CREAT | O_WRONLY)) == NULL) {
+        if ((capture = hexagram_capture_open_file(argv[2], O_CREAT | O_TRUNC | O_WRONLY)) == NULL) {
             perror("hexagram_capture_open_file()");
 
             goto error_capture_open;
diff --git a/src/capture.c b/src/capture.c
index 2171949..85f8d79 100644
--- a/src/capture.c
+++ b/src/capture.c
@@ -96,7 +96,7 @@ ssize_t hexagram_capture_read(hexagram_capture *capture,
 
     if ((len = read(capture->fd, &data, sizeof(data))) < 0) {
         goto error_io;
-    } else if (len < sizeof(data)) {
+    } else if (len && len < sizeof(data)) {
         goto error_io;
     }
 
@@ -143,18 +143,18 @@ error_gettimeofday:
 int hexagram_capture_replay(hexagram_capture *capture,
                             hexagram_can_if *can_if,
                             float speed) {
-    ssize_t len;
-
     uint32_t timestamp[2],
              usec_last = 0;
 
     struct can_frame frame;
 
     while (1) {
-        if ((len = hexagram_capture_read(capture,
-                                         &timestamp[0],
-                                         &timestamp[1],
-                                         &frame)) < 0) {
+        ssize_t len = hexagram_capture_read(capture,
+                                            &timestamp[0],
+                                            &timestamp[1],
+                                            &frame);
+
+        if (len < 0) {
             goto error_io;
         } else if (len == 0) {
             break;