Add mkdirp

Signed-off-by: Laurent Bercot <ska@appnovation.com>

1 files changed, 34 insertions, 0 deletions

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 ;
+}