[libvirt] [PATCH] util: Don't overflow on errno in virFileAccessibleAs
If we need to virFork() to check assess() under different
UID+GID we need to translate returned status via WEXITSTATUS().
Otherwise, we may return values greater than 255 which is
obviously wrong.
---
src/util/util.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/src/util/util.c b/src/util/util.c
index 548ed1c..15e6cfa 100644
--- a/src/util/util.c
+++ b/src/util/util.c
@@ -724,8 +724,13 @@ virFileAccessibleAs(const char *path, int mode,
return -1;
}
+ if (!WIFEXITED(status)) {
+ errno = EINTR;
+ return -1;
+ }
+
if (status) {
- errno = status;
+ errno = WEXITSTATUS(status);
return -1;
}
--
1.7.8.5