Initial commit.

1 files changed, 35 insertions, 0 deletions

diff --git a/main.c b/main.c
new file mode 100644
index 0000000..6b6e15a
--- /dev/null
+++ b/main.c
@@ -0,0 +1,35 @@
+#define _GNU_SOURCE
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+int
+main(int argc, char *argv[])
+{
+	char buf[1024];
+	int mfd, n, cs;
+
+	mfd = memfd_create("", MFD_CLOEXEC);
+	if(mfd < 0)
+		exit(1);
+
+	while((n = read(0, buf, sizeof buf)) > 0)
+		if(write(mfd, buf, n) != n)
+			exit(2);
+
+	switch(fork()){
+	case -1:
+		exit(3);
+	case 0:
+		snprintf(buf, sizeof buf, "/proc/self/fd/%d", mfd);
+		execl(buf, "", NULL);
+		exit(66);
+	default:
+		wait(&cs);
+	}
+	exit(cs);
+}