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From fb071c302b8cad8837bc1e57407dc3ffa14d3f99 Mon Sep 17 00:00:00 2001
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From: Kamil Dudka <kdudka@redhat.com>
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Date: Thu, 31 Oct 2013 19:24:35 +0100
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Subject: [PATCH] libacl: fix SIGSEGV of getfacl -e on overly long group name
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We simply make sure that at least one tab is used for indentation.
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---
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libacl/__acl_to_any_text.c | 5 +++++
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test/root/getfacl.test | 17 +++++++++++++++++
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2 files changed, 22 insertions(+), 0 deletions(-)
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create mode 100644 test/root/getfacl.test
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diff --git a/libacl/__acl_to_any_text.c b/libacl/__acl_to_any_text.c
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index a4f9c34..1d10e81 100644
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--- a/libacl/__acl_to_any_text.c
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+++ b/libacl/__acl_to_any_text.c
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@@ -247,6 +247,11 @@ acl_entry_to_any_str(const acl_entry_t entry_d, char *text_p, ssize_t size,
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options & TEXT_ALL_EFFECTIVE) {
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x = (options & TEXT_SMART_INDENT) ?
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((text_p - orig_text_p)/8) : TABS-1;
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+
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+ /* use at least one tab for indentation */
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+ if (x > (TABS-1))
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+ x = (TABS-1);
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+
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strncpy(text_p, tabs+x, size);
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ADVANCE(TABS-x);
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diff --git a/test/root/getfacl.test b/test/root/getfacl.test
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new file mode 100644
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index 0000000..f84e25d
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--- /dev/null
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+++ b/test/root/getfacl.test
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@@ -0,0 +1,17 @@
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+Make sure that getfacl always adds at least one space between the permissions
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+in an acl entry and the effective permissions comment.
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+
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+ $ umask 022
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+ $ mkdir d
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+ $ groupadd loooooooooooooooooooooooonggroup
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+ $ setfacl -dm group:loooooooooooooooooooooooonggroup:rwx d
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+ $ getfacl -cde d
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+ > user::rwx
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+ > group::r-x #effective:r-x
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+ > group:loooooooooooooooooooooooonggroup:rwx #effective:rwx
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+ > mask::rwx
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+ > other::r-x
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+ >
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+
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+ $ groupdel loooooooooooooooooooooooonggroup
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+ $ rm -r d
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--
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1.7.1
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