From: Yousong Zhou <yszhou4tech@gmail.com>
Date: Tue, 16 Dec 2014 07:00:06 +0000 (+0800)
Subject: file: fix EOF check.
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=def58eba24cc53f8761903145fef8db65e6e4760;p=oweals%2Fuci.git

file: fix EOF check.

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
---

diff --git a/file.c b/file.c
index 1d2718a..3f02c11 100644
--- a/file.c
+++ b/file.c
@@ -48,8 +48,8 @@ __private void uci_getln(struct uci_context *ctx, int offset)
 		pctx->buf = uci_malloc(ctx, LINEBUF);
 		pctx->bufsz = LINEBUF;
 	}
-	/* `offset' may off by one */
-	if (offset >= pctx->bufsz) {
+	/* It takes 2 slots for fgets to read 1 char. */
+	if (offset >= pctx->bufsz - 1) {
 		pctx->bufsz *= 2;
 		pctx->buf = uci_realloc(ctx, pctx->buf, pctx->bufsz);
 	}