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Message-Id: <20210629133130.143543-1-aleksei.kodanev@bell-sw.com>
Date: Tue, 29 Jun 2021 16:31:30 +0300
From: Alexey Kodanev <aleksei.kodanev@...l-sw.com>
To: musl@...ts.openwall.com
Cc: Alexey Kodanev <aleksei.kodanev@...l-sw.com>
Subject: [PATCH] nice: return EPERM instead of EACCES
To comply with POSIX, change errno from EACCES to EPERM
when the caller did not have the required privilege.
---
src/unistd/nice.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/src/unistd/nice.c b/src/unistd/nice.c
index 6c25c8c3..1c2295ff 100644
--- a/src/unistd/nice.c
+++ b/src/unistd/nice.c
@@ -1,4 +1,5 @@
#include <unistd.h>
+#include <errno.h>
#include <sys/resource.h>
#include <limits.h>
#include "syscall.h"
@@ -12,5 +13,11 @@ int nice(int inc)
prio += getpriority(PRIO_PROCESS, 0);
if (prio > NZERO-1) prio = NZERO-1;
if (prio < -NZERO) prio = -NZERO;
- return setpriority(PRIO_PROCESS, 0, prio) ? -1 : prio;
+ if (setpriority(PRIO_PROCESS, 0, prio)) {
+ if (errno == EACCES)
+ errno = EPERM;
+ return -1;
+ } else {
+ return prio;
+ }
}
--
2.25.1
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