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41 lines
1.3 KiB
41 lines
1.3 KiB
8 months ago
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From 770b16b22dd0eec04fd1493dae644206c32f8e04 Mon Sep 17 00:00:00 2001
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From: Lennart Poettering <lennart@poettering.net>
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Date: Wed, 10 Oct 2018 11:12:54 +0200
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Subject: [PATCH] sd-bus: call cap_last_cap() only once in has_cap()
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Also, use the same type everywhere for dealing with it.
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(cherry picked from commit 92a40e20bf970c3ded8a50fbeeae882a7b970c9a)
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Resolves: #1683319
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---
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src/libsystemd/sd-bus/bus-creds.c | 7 +++++--
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1 file changed, 5 insertions(+), 2 deletions(-)
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diff --git a/src/libsystemd/sd-bus/bus-creds.c b/src/libsystemd/sd-bus/bus-creds.c
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index 6896bcf246..2a47c68ffc 100644
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--- a/src/libsystemd/sd-bus/bus-creds.c
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+++ b/src/libsystemd/sd-bus/bus-creds.c
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@@ -652,16 +652,19 @@ _public_ int sd_bus_creds_get_description(sd_bus_creds *c, const char **ret) {
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}
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static int has_cap(sd_bus_creds *c, size_t offset, int capability) {
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+ unsigned long lc;
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size_t sz;
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assert(c);
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assert(capability >= 0);
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assert(c->capability);
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- if ((unsigned) capability > cap_last_cap())
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+ lc = cap_last_cap();
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+
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+ if ((unsigned long) capability > lc)
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return 0;
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- sz = DIV_ROUND_UP(cap_last_cap(), 32U);
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+ sz = DIV_ROUND_UP(lc, 32LU);
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return !!(c->capability[offset * sz + CAP_TO_INDEX((uint32_t) capability)] & CAP_TO_MASK_CORRECTED((uint32_t) capability));
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}
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