dedup

commit 9af5dd1c8a0f4ed051b7247ca759263f5cfee054
parent 1f27546ac6b0a4fd6f0c5198afa34d5220e57107
Author: sin <sin@2f30.org>
Date:   Thu, 21 Feb 2019 14:57:30 +0000

Ensure chunker is refilled up to capacity

Previously we were not refilling the chunker up to its max capacity
when reading from a pipe.

Diffstat:
M
chunker.c
 | 
15
++++++++++-----

1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/chunker.c b/chunker.c
@@ -81,11 +81,16 @@ fill_chunker(struct chunker *chunker)
 	uint8_t *bp;
 	ssize_t n;
 
-	bp = &chunker->buf[chunker->wpos];
-	n = read(chunker->fd, bp, chunker->cap - chunker->wpos);
-	if (n < 0)
-		err(1, "read");
-	chunker->wpos += n;
+	while (chunker->cap != chunker->wpos) {
+		bp = &chunker->buf[chunker->wpos];
+		n = read(chunker->fd, bp, chunker->cap - chunker->wpos);
+		if (n < 0)
+			err(1, "read");
+		else if (n == 0)
+			break;
+		chunker->wpos += n;
+	}
+
 	return chunker->wpos;
 }