X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Futils.c;h=2e07d4ff0b6d366268755b7969dab0d58199385e;hp=3cdb6b76063caf4545761a93b52523dd2c39b14c;hb=83c50c540631cb2cd9cd099a801f2329a5c4b8bf;hpb=a1e4ab8b82429320c5f962038c0f28b874f8ea6f

diff --git a/src/common/utils.c b/src/common/utils.c
index 3cdb6b760..2e07d4ff0 100644
--- a/src/common/utils.c
+++ b/src/common/utils.c
@@ -324,7 +324,7 @@ error:
  * The returned string was allocated in the function, it is thus of
  * the responsibility of the caller to free this memory.
  */
-LTTNG_HIDDEN
+static
 char *_utils_expand_path(const char *path, bool keep_symlink)
 {
 	int ret;
@@ -1501,3 +1501,35 @@ int utils_get_memory_total(size_t *value)
 {
 	return read_proc_meminfo_field(PROC_MEMINFO_MEMTOTAL_LINE, value);
 }
+
+LTTNG_HIDDEN
+int utils_change_working_directory(const char *path)
+{
+	int ret;
+
+	assert(path);
+
+	DBG("Changing working directory to \"%s\"", path);
+	ret = chdir(path);
+	if (ret) {
+		PERROR("Failed to change working directory to \"%s\"", path);
+		goto end;
+	}
+
+	/* Check for write access */
+	if (access(path, W_OK)) {
+		if (errno == EACCES) {
+			/*
+			 * Do not treat this as an error since the permission
+			 * might change in the lifetime of the process
+			 */
+			DBG("Working directory \"%s\" is not writable", path);
+		} else {
+			PERROR("Failed to check if working directory \"%s\" is writable",
+					path);
+		}
+	}
+
+end:
+	return ret;
+}