along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <string.h>
-#include <unistd.h>
#include <errno.h>
-#include <stdlib.h>
-#include <stdio.h>
#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
#include <sys/statvfs.h>
+#include <unistd.h>
-#include "macro.h"
-#include "util.h"
+#include "fd-util.h"
+#include "fileio.h"
#include "log.h"
-#include "strv.h"
-#include "path-util.h"
+#include "macro.h"
#include "missing.h"
-#include "fileio.h"
+#include "path-util.h"
+#include "string-util.h"
+#include "strv.h"
+#include "util.h"
bool path_is_absolute(const char *p) {
return p[0] == '/';
strcpy(p, path);
return n;
}
+
+int parse_path_argument_and_warn(const char *path, bool suppress_root, char **arg) {
+ char *p;
+ int r;
+
+ /*
+ * This function is intended to be used in command line
+ * parsers, to handle paths that are passed in. It makes the
+ * path absolute, and reduces it to NULL if omitted or
+ * root (the latter optionally).
+ *
+ * NOTE THAT THIS WILL FREE THE PREVIOUS ARGUMENT POINTER ON
+ * SUCCESS! Hence, do not pass in uninitialized pointers.
+ */
+
+ if (isempty(path)) {
+ *arg = mfree(*arg);
+ return 0;
+ }
+
+ r = path_make_absolute_cwd(path, &p);
+ if (r < 0)
+ return log_error_errno(r, "Failed to parse path \"%s\" and make it absolute: %m", path);
+
+ path_kill_slashes(p);
+ if (suppress_root && path_equal(p, "/"))
+ p = mfree(p);
+
+ free(*arg);
+ *arg = p;
+ return 0;
+}