From: Sebastian Harl <sh@tokkee.org>
Date: Fri, 16 May 2014 06:48:40 +0000 (+0200)
Subject: strbuf utils: Fixed resizing in append.
X-Git-Tag: sysdb-0.1.0~15
X-Git-Url: https://git.tokkee.org/?p=sysdb.git;a=commitdiff_plain;h=4fd156c45f4875aad3a12123e67082de33908bc4

strbuf utils: Fixed resizing in append.

Previously, resizing happened "too early" which may possibly generate
avoidable memory churn.
---

diff --git a/src/utils/strbuf.c b/src/utils/strbuf.c
index 6c881be..0474677 100644
--- a/src/utils/strbuf.c
+++ b/src/utils/strbuf.c
@@ -154,8 +154,8 @@ sdb_strbuf_vappend(sdb_strbuf_t *strbuf, const char *fmt, va_list ap)
 	}
 
 	/* 'status' does not include nul-byte */
-	if ((size_t)status >= strbuf->size - strbuf->pos - 1) {
-		if (strbuf_resize(strbuf, strbuf->size + (size_t)status + 1)) {
+	if ((size_t)status >= strbuf->size - strbuf->pos) {
+		if (strbuf_resize(strbuf, strbuf->pos + (size_t)status + 1)) {
 			va_end(aq);
 			return -1;
 		}