From: Xinwei Hu <hxinwei@gmail.com>
Date: Tue, 27 May 2008 17:35:03 +0000 (+0200)
Subject: collect: realloc buffer, if needed
X-Git-Tag: 174~1690
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=b5254b42032b39e393f5c89102ca71c2b3fa0d11;hp=2aae673c967a16276c85726975cade2413b5307b

collect: realloc buffer, if needed
---

diff --git a/extras/collect/collect.c b/extras/collect/collect.c
index 0a852f2db..feb0e7576 100644
--- a/extras/collect/collect.c
+++ b/extras/collect/collect.c
@@ -271,7 +271,11 @@ static int missing(int fd)
 		if (him->state == STATE_NONE) {
 			ret++;
 		} else {
-			sprintf(buf, "%s ", him->name);
+			while (strlen(him->name)+1 >= bufsize) {
+				bufsize = bufsize << 1;
+				buf = realloc(buf, bufsize);
+			}
+			snprintf(buf, strlen(him->name)+2, "%s ", him->name);
 			write(fd, buf, strlen(buf));
 		}
 	}