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Message-ID: <20241029030111.708854-1-lihua.zhao.cn@windriver.com>
Date: Tue, 29 Oct 2024 11:01:11 +0800
From: <lihua.zhao.cn@...driver.com>
To: <musl@...ts.openwall.com>
CC: <lihua.zhao.cn@...driver.com>
Subject: [PATCH] fix sem_unlink reporting wrong errno
From: Lihua Zhao <lihua.zhao.cn@...driver.com>
When the input name is invalid, it should set errno with ENOENT, but
this routine is also used by shm_open(), it set the errno with EINVAL.
Signed-off-by: Lihua Zhao <lihua.zhao.cn@...driver.com>
---
src/mman/shm_open.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/src/mman/shm_open.c b/src/mman/shm_open.c
index 79784bd3..8383ffad 100644
--- a/src/mman/shm_open.c
+++ b/src/mman/shm_open.c
@@ -38,6 +38,10 @@ int shm_open(const char *name, int flag, mode_t mode)
int shm_unlink(const char *name)
{
char buf[NAME_MAX+10];
- if (!(name = __shm_mapname(name, buf))) return -1;
+ if (!(name = __shm_mapname(name, buf))) {
+ if (errno == EINVAL) errno = ENOENT;
+ return -1;
+ }
+
return unlink(name);
}
--
2.43.0
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