git: d84fd89ecd40 - main - dlopen(3): mention fdlopen for capsicum(4)
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Date: Tue, 07 May 2024 13:10:06 UTC
The branch main has been updated by emaste:
URL: https://cgit.FreeBSD.org/src/commit/?id=d84fd89ecd404ffbf629381d2dde14fd79b39402
commit d84fd89ecd404ffbf629381d2dde14fd79b39402
Author: Ed Maste <emaste@FreeBSD.org>
AuthorDate: 2024-05-07 01:45:50 +0000
Commit: Ed Maste <emaste@FreeBSD.org>
CommitDate: 2024-05-07 13:09:59 +0000
dlopen(3): mention fdlopen for capsicum(4)
Capsicum-sandboxed applications generally cannot use dlopen, as absolute
and cwd-relative paths cannot be accessed. Mention that fdlopen is
useful for sandboxed applications.
PR: 277169
Reviewed by: markj, oshogbo
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D45108
---
lib/libc/gen/dlopen.3 | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/lib/libc/gen/dlopen.3 b/lib/libc/gen/dlopen.3
index 9871029a84b5..340545114114 100644
--- a/lib/libc/gen/dlopen.3
+++ b/lib/libc/gen/dlopen.3
@@ -29,7 +29,7 @@
.\"
.\" Copyright (c) 1991 Sun Microsystems, Inc.
.\"
-.Dd May 14, 2020
+.Dd May 7, 2024
.Dt DLOPEN 3
.Os
.Sh NAME
@@ -199,6 +199,10 @@ The
function can be used by the code that needs to perform
additional checks on the loaded objects, to prevent races with
symlinking or renames.
+Applications sandboxed using
+.Xr capsicum 4
+can also make beneficial use of
+.Fn fdlopen .
.Pp
The
.Fn dlsym