Initial commit

diff --git a/README b/README
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+mkdir_p, a very simple `mkdir -p` implementation in C
+======================================================
+
+Just a simple helper code for recursively creating directories.

diff --git a/mkdir_p.c b/mkdir_p.c
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+++ b/mkdir_p.c
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+/*
+ * mkdir_p, a very simple `mkdir -p` implementation in C
+ * Copyright (C) 2016  Rafał Długołęcki
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include "mkdir_p.h"
+
+int mkdir_p(const char *pathname, mode_t mode)
+{
+       int i = 0;
+       int error = 0;
+       char * path = NULL;
+       int len = 0;
+       
+       if (pathname == NULL) {
+               return -1;
+       }
+       
+       len = strlen(pathname);
+
+       if (pathname[0] == MKDIR_P_SEPARATOR) {
+               i = 1;
+       }
+
+       while ((i <= len) && !error) {
+               if ((i + 1 < len) && (pathname[i + 1] == MKDIR_P_SEPARATOR)) {
+                       path = malloc(sizeof(char) * (i + 2));
+                       strncpy(path, pathname, i + 1);
+                       path[i + 1] = '\0';
+               }
+               else if ((i + 1 == len) && (pathname[i] != MKDIR_P_SEPARATOR)) {
+                       path = malloc(sizeof(char) * (i + 2));
+                       strncpy(path, pathname, i + 1);
+                       path[i + 1] = '\0';
+               }
+
+
+               if (path != NULL) {
+                       error = mkdir(path, mode);
+
+                       if ((error != 0) && (errno != EEXIST)) {
+                               perror("Unable to create directory");
+                       }
+                       else {
+                               error = 0;
+                       }
+
+                       free(path);
+                       path = NULL;
+               }
+               i++;
+       }
+
+       return error;
+}
+
+#ifdef _MKDIR_P_STANDALONE
+
+int main(int argc, char ** argv)
+{
+       if (argc == 2) {
+               return mkdir_p(argv[1], 0700);
+       }
+       else {
+               puts("mkdir_p, a very simple `mkdir -p` implementation in C");
+               puts("Version: " MKDIR_P_VERSION);
+               puts("\n\tUsage: mkdir_p PATH\n\n");
+       }
+       
+       return 0;
+}
+
+#endif /* _MKDIR_P_STANDALONE */

diff --git a/mkdir_p.h b/mkdir_p.h
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+++ b/mkdir_p.h
@@ -0,0 +1,32 @@
+/*
+ * mkdir_p, a very simple `mkdir -p` implementation in C
+ * Copyright (C) 2016  Rafał Długołęcki
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MKDIR_P_H
+#define __MKDIR_P_H
+
+#include <sys/types.h>
+
+#define MKDIR_P_VERSION "0.1"
+#define MKDIR_P_SEPARATOR '/'
+
+/**
+ * Creates directory, when parent directories are missing, creates them too
+ *
+ * @param pathname NULL terminated string containing directory path
+ * @param mode specifies permissions for created directories (parameter is
+ *             passed directly to the mkdir)
+ */
+int mkdir_p(const char *pathname, mode_t mode);
+
+#endif /* __MKDIR_P_H */