lib/fileutils: add mkdir_p() from libmount

1 files changed, 36 insertions, 0 deletions

diff --git a/lib/fileutils.c b/lib/fileutils.c
index 92b474cef..3d4553179 100644
--- a/lib/fileutils.c
+++ b/lib/fileutils.c
@@ -81,3 +81,39 @@ int main(void)
 	return EXIT_FAILURE;
 }
 #endif
+
+
+int mkdir_p(const char *path, mode_t mode)
+{
+	char *p, *dir;
+	int rc = 0;
+
+	if (!path || !*path)
+		return -EINVAL;
+
+	dir = p = strdup(path);
+	if (!dir)
+		return -ENOMEM;
+
+	if (*p == '/')
+		p++;
+
+	while (p && *p) {
+		char *e = strchr(p, '/');
+		if (e)
+			*e = '\0';
+		if (*p) {
+			rc = mkdir(dir, mode);
+			if (rc && errno != EEXIST)
+				break;
+			rc = 0;
+		}
+		if (!e)
+			break;
+		*e = '/';
+		p = e + 1;
+	}
+
+	free(dir);
+	return rc;
+}