From a8899ea71d8539d9032ed14e2342a95f3b33f42c Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Wed, 18 Jun 2025 13:39:02 +0000
Subject:  Add mkdirp

Signed-off-by: Laurent Bercot <ska@appnovation.com>
---
 src/include/skalibs/posixplz.h |  1 +
 src/libposixplz/mkdirp.c       | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+)
 create mode 100644 src/libposixplz/mkdirp.c

(limited to 'src')

diff --git a/src/include/skalibs/posixplz.h b/src/include/skalibs/posixplz.h
index c7e8dd2..2f17f8a 100644
--- a/src/include/skalibs/posixplz.h
+++ b/src/include/skalibs/posixplz.h
@@ -41,6 +41,7 @@ extern pid_t fork_newpid (void) ;
 extern int touch (char const *) ;
 extern unsigned int millisleep (unsigned int) ;
 
+extern int mkdirp (char *, mode_t) ;
 extern int mkfiletemp (char *, create_func_ref, mode_t, void *) ;
 extern int mklinktemp (char const *, char *, link_func_ref) ;
 extern int mkptemp (char *) ;
diff --git a/src/libposixplz/mkdirp.c b/src/libposixplz/mkdirp.c
new file mode 100644
index 0000000..921d8e3
--- /dev/null
+++ b/src/libposixplz/mkdirp.c
@@ -0,0 +1,34 @@
+/* ISC license. */
+
+#include <skalibs/bsdsnowflake.h>
+
+#include <string.h>
+#include <errno.h>
+
+#include <skalibs/stat.h>
+#include <skalibs/posixplz.h>
+
+static int domkdir (char const *s, mode_t mode)
+{
+  return !mkdir(s, mode) || errno == EEXIST ;
+}
+
+int mkdirp (char *s, mode_t mode)
+{
+  mode_t m = umask(0) ;
+  size_t len = strlen(s) ;
+  size_t i = 2 ;
+  for (; i < len ; i++) if (s[i] == '/')
+  {
+    s[i] = 0 ;
+    if (!domkdir(s, 02755)) goto err ;
+    s[i] = '/' ;
+  }
+  if (!domkdir(s, mode)) goto err ;
+  umask(m) ;
+  return 0 ;
+
+ err:
+  umask(m) ;
+  return -1 ;
+}
-- 
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