lineread: Use ssize_t for line lengths

Functions and structures in lineread.c use plain int to record and report
the length of lines we receive.  This means we truncate the result from
read(2) in some circumstances.  Use ssize_t to avoid that.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/lineread.h b/lineread.h
index af86418..9203e28 100644
--- a/lineread.h
+++ b/lineread.h
@@ -18,14 +18,15 @@
  * @buf:	Buffer storing data read from file.
  */
 struct lineread {
-	int fd; int next_line;
-	int count;
+	int fd;
+	ssize_t next_line;
+	ssize_t count;
 
 	/* One extra byte for possible trailing \0 */
 	char buf[LINEREAD_BUFFER_SIZE+1];
 };
 
 void lineread_init(struct lineread *lr, int fd);
-int lineread_get(struct lineread *lr, char **line);
+ssize_t lineread_get(struct lineread *lr, char **line);
 
 #endif /* _LINEREAD_H */