From: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Date: Sun, 28 Apr 2019 22:06:11 +0000 (-0400)
Subject: Fix: directory handle credentials parameter is not const
X-Git-Tag: v2.11.0-rc2~13
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=6992f9f122f8bad7a1ed7ecb30b3f318a8ca8711;p=lttng-tools.git

Fix: directory handle credentials parameter is not const

There is no reason for the "as user" operations on a directory
handle not to take the credentials as a const parameter. Not
passing credentials as const makes their ownership ambiguous
and makes it harder to write const-correct code.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---

diff --git a/src/common/compat/directory-handle.c b/src/common/compat/directory-handle.c
index 7077378e0..781f2574b 100644
--- a/src/common/compat/directory-handle.c
+++ b/src/common/compat/directory-handle.c
@@ -418,7 +418,7 @@ LTTNG_HIDDEN
 int lttng_directory_handle_create_subdirectory_as_user(
 		const struct lttng_directory_handle *handle,
 		const char *subdirectory,
-		mode_t mode, struct lttng_credentials *creds)
+		mode_t mode, const struct lttng_credentials *creds)
 {
 	int ret;
 
@@ -438,7 +438,7 @@ LTTNG_HIDDEN
 int lttng_directory_handle_create_subdirectory_recursive_as_user(
 		const struct lttng_directory_handle *handle,
 		const char *subdirectory_path,
-		mode_t mode, struct lttng_credentials *creds)
+		mode_t mode, const struct lttng_credentials *creds)
 {
 	int ret;
 
diff --git a/src/common/compat/directory-handle.h b/src/common/compat/directory-handle.h
index a24bbd8db..7d2cab339 100644
--- a/src/common/compat/directory-handle.h
+++ b/src/common/compat/directory-handle.h
@@ -78,7 +78,7 @@ LTTNG_HIDDEN
 int lttng_directory_handle_create_subdirectory_as_user(
 		const struct lttng_directory_handle *handle,
 		const char *subdirectory,
-		mode_t mode, struct lttng_credentials *creds);
+		mode_t mode, const struct lttng_credentials *creds);
 
 /*
  * Recursively create a directory relative to a directory handle.
@@ -97,6 +97,6 @@ LTTNG_HIDDEN
 int lttng_directory_handle_create_subdirectory_recursive_as_user(
 		const struct lttng_directory_handle *handle,
 		const char *subdirectory_path,
-		mode_t mode, struct lttng_credentials *creds);
+		mode_t mode, const struct lttng_credentials *creds);
 
 #endif /* _COMPAT_PATH_HANDLE_H */
diff --git a/src/common/utils.c b/src/common/utils.c
index aada37fe7..f058e2003 100644
--- a/src/common/utils.c
+++ b/src/common/utils.c
@@ -679,7 +679,7 @@ int utils_mkdir(const char *path, mode_t mode, int uid, int gid)
 {
 	int ret;
 	struct lttng_directory_handle handle;
-	struct lttng_credentials creds = {
+	const struct lttng_credentials creds = {
 		.uid = (uid_t) uid,
 		.gid = (gid_t) gid,
 	};
@@ -703,7 +703,7 @@ int utils_mkdir_recursive(const char *path, mode_t mode, int uid, int gid)
 {
 	int ret;
 	struct lttng_directory_handle handle;
-	struct lttng_credentials creds = {
+	const struct lttng_credentials creds = {
 		.uid = (uid_t) uid,
 		.gid = (gid_t) gid,
 	};