1 files changed, 80 insertions, 0 deletions
diff --git a/src/cmd/mkdir.c b/src/cmd/mkdir.c
new file mode 100644
index 00000000..1c16565d
--- /dev/null
+++ b/src/cmd/mkdir.c
@@ -0,0 +1,80 @@
+#include <u.h>
+#include <libc.h>
+
+char *e;
+ulong mode = 0777L;
+
+void
+usage(void)
+{
+	fprint(2, "usage: mkdir [-p] [-m mode] dir...\n");
+	exits("usage");
+}
+
+int
+makedir(char *s)
+{
+	int f;
+
+	if(access(s, AEXIST) == 0){
+		fprint(2, "mkdir: %s already exists\n", s);
+		e = "error";
+		return -1;
+	}
+	f = create(s, OREAD, DMDIR | mode);
+	if(f < 0){
+		fprint(2, "mkdir: can't create %s: %r\n", s);
+		e = "error";
+		return -1;
+	}
+	close(f);
+	return 0;
+}
+
+void
+mkdirp(char *s)
+{
+	char *p;
+
+	for(p=strchr(s+1, '/'); p; p=strchr(p+1, '/')){
+		*p = 0;
+		if(access(s, AEXIST) != 0 && makedir(s) < 0)
+			return;
+		*p = '/';
+	}
+	if(access(s, AEXIST) != 0)
+		makedir(s);
+}
+
+
+void
+main(int argc, char *argv[])
+{
+	int i, pflag;
+	char *m;
+
+	pflag = 0;
+	ARGBEGIN{
+	default:
+		usage();
+	case 'm':
+		m = ARGF();
+		if(m == nil)
+			usage();
+		mode = strtoul(m, &m, 8);
+		if(mode > 0777)
+			usage();
+		break;
+	case 'p':
+		pflag = 1;
+		break;
+	}ARGEND
+
+	for(i=0; i<argc; i++){
+		if(pflag)
+			mkdirp(argv[i]);
+		else
+			makedir(argv[i]);
+	}
+	exits(e);
+}