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authorDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2019-10-07 14:56:09 +0200
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2019-10-07 14:59:03 +0200
commit145dfce5f04a3a74a49cc016f15b0aa6d9996662 (patch)
tree919357d5a18934222741732c8444db7711421aa3 /lib/common/mkdir_p.c
parent7e1be3986b3b8229f0162431b6e02c24e04a5dba (diff)
Cleanup: move directory handling code to libcommon
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'lib/common/mkdir_p.c')
-rw-r--r--lib/common/mkdir_p.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/lib/common/mkdir_p.c b/lib/common/mkdir_p.c
new file mode 100644
index 0000000..cb433b3
--- /dev/null
+++ b/lib/common/mkdir_p.c
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * mkdir_p.c
+ *
+ * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
+ */
+#include "common.h"
+
+#include <string.h>
+#include <alloca.h>
+#include <stdio.h>
+#include <errno.h>
+
+int mkdir_p(const char *path)
+{
+ size_t i, len;
+ char *buffer;
+
+ while (path[0] == '/' && path[1] == '/')
+ ++path;
+
+ if (*path == '\0' || (path[0] == '/' && path[1] == '\0'))
+ return 0;
+
+ len = strlen(path) + 1;
+ buffer = alloca(len);
+
+ for (i = 0; i < len; ++i) {
+ if (i > 0 && (path[i] == '/' || path[i] == '\0')) {
+ buffer[i] = '\0';
+
+ if (mkdir(buffer, 0755) != 0) {
+ if (errno != EEXIST) {
+ fprintf(stderr, "mkdir %s: %s\n",
+ buffer, strerror(errno));
+ return -1;
+ }
+ }
+ }
+
+ buffer[i] = path[i];
+ }
+
+ return 0;
+}