Merge pull request #10349 from poettering/bus-creds-shift-overflow

sd-bus creds bitshift overflow fix
2018-10-10 12:04:33 +02:00
parent 65f95765d0 92a40e20bf
commit 98359a012a
2 changed files with 11 additions and 4 deletions
@@ -39,3 +39,7 @@ static inline bool cap_test_all(uint64_t caps) {
 }

 bool ambient_capabilities_supported(void);
+
+/* Identical to linux/capability.h's CAP_TO_MASK(), but uses an unsigned 1U instead of a signed 1 for shifting left, in
+ * order to avoid complaints about shifting a signed int left by 31 bits, which would make it negative. */
+#define CAP_TO_MASK_CORRECTED(x) (1U << ((x) & 31U))