[gentoo-commits] proj/sandbox:master commit in: libsandbox/

[Mike Gilbert]

commit:     1c9a17d40de6dd3ea5b7aacaa76878357350881b
Author:     Mike Gilbert <floppym <AT> gentoo <DOT> org>
AuthorDate: Sat Aug  5 19:14:09 2023 +0000
Commit:     Mike Gilbert <floppym <AT> gentoo <DOT> org>
CommitDate: Sat Aug  5 20:08:10 2023 +0000
URL:        https://gitweb.gentoo.org/proj/sandbox.git/commit/?id=1c9a17d4

erealpath: leave space for a trailing '\0' in readlink's buffer

Signed-off-by: Mike Gilbert <floppym <AT> gentoo.org>

 libsandbox/canonicalize.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libsandbox/canonicalize.c b/libsandbox/canonicalize.c
index f282bdd..6c9a2d6 100644
--- a/libsandbox/canonicalize.c
+++ b/libsandbox/canonicalize.c
@@ -102,7 +102,7 @@ erealpath(const char *name, char *resolved)
                                if (lstat64(rpath, &st))
                                        break;
                                if (S_ISLNK(st.st_mode)) {
-                                       ssize_t cnt = readlink(rpath, rpath, 
SB_PATH_MAX);
+                                       ssize_t cnt = readlink(rpath, rpath, 
SB_PATH_MAX - 1);
                                        if (cnt == -1)
                                                break;
                                        rpath[cnt] = '\0';