X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udev_rules.c;h=35db958c8df4959fbb68664b1aed7afb0124a3aa;hp=0dcbf156ea14d9708b4b53b5d9cd60b4b956e0ff;hb=79ef8431c952349d9f31c899adb579c3ff83a80b;hpb=03f65fe6a9cd32a5861b1a929cdf4f7eddbd593f

diff --git a/udev_rules.c b/udev_rules.c
index 0dcbf156e..35db958c8 100644
--- a/udev_rules.c
+++ b/udev_rules.c
@@ -475,10 +475,12 @@ static int pass_env_to_socket(const char *sockname, const char *devpath, const c
 
 	bufpos = snprintf(buf, sizeof(buf)-1, "%s@%s", action, devpath);
 	bufpos++;
-	for (i = 0; environ[i] != NULL && bufpos < sizeof(buf); i++) {
+	for (i = 0; environ[i] != NULL && bufpos < (sizeof(buf)-1); i++) {
 		bufpos += strlcpy(&buf[bufpos], environ[i], sizeof(buf) - bufpos-1);
 		bufpos++;
 	}
+	if (bufpos > sizeof(buf))
+		bufpos = sizeof(buf);
 
 	count = sendto(sock, &buf, bufpos, 0, (struct sockaddr *)&saddr, addrlen);
 	if (count < 0)