From 87189d3f65cb66c95f0be5c3fb213bdc5741e634 Mon Sep 17 00:00:00 2001
From: Aleksey Veresov <aleksey@veresov.pro>
Date: Tue, 1 Dec 2020 20:46:50 +0300
Subject: Initial

---
 shelter.c | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 shelter.c

(limited to 'shelter.c')

diff --git a/shelter.c b/shelter.c
new file mode 100644
index 0000000..e8bdf9f
--- /dev/null
+++ b/shelter.c
@@ -0,0 +1,31 @@
+#include <stdio.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+
+int main()
+{
+    int p[2];
+    pid_t pid;
+    pipe(p);
+    pid = fork();
+    if (pid == -1) {
+        return 1;
+    } else if (pid) {
+        int c;
+        close(p[0]);
+        write(p[1], "echo -n \"", 6);
+        while ((c = getchar()) != EOF) {
+            write(p[1], &c, 1);
+        }
+        write(p[1], "\"", 1);
+        close(p[1]);
+        wait(0);
+    } else {
+        close(p[1]);
+        dup2(p[0], 0);
+        close(p[0]);
+        execl("/bin/sh", "/bin/sh", 0);
+    }
+    return 0;
+}
-- 
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