From: Duncaen <mail@duncano.de>
Date: Wed, 30 Jan 2019 20:06:15 +0000 (+0100)
Subject: libopenbsd/closefrom: correctly handle snprintf truncation
X-Git-Tag: v6.6~38
X-Git-Url: https://git.armaanb.net/?p=opendoas.git;a=commitdiff_plain;h=365f92247952a8be6d8e40b6770589dbe169825c

libopenbsd/closefrom: correctly handle snprintf truncation
---

diff --git a/libopenbsd/closefrom.c b/libopenbsd/closefrom.c
index 9380b33..b56476a 100644
--- a/libopenbsd/closefrom.c
+++ b/libopenbsd/closefrom.c
@@ -77,7 +77,7 @@ closefrom(int lowfd)
 
     /* Check for a /proc/$$/fd directory. */
     len = snprintf(fdpath, sizeof(fdpath), "/proc/%ld/fd", (long)getpid());
-    if (len > 0 && (size_t)len <= sizeof(fdpath) && (dirp = opendir(fdpath))) {
+    if (len > 0 && (size_t)len < sizeof(fdpath) && (dirp = opendir(fdpath))) {
 	while ((dent = readdir(dirp)) != NULL) {
 	    fd = strtol(dent->d_name, &endp, 10);
 	    if (dent->d_name != endp && *endp == '\0' &&