From 5e745434fc03fe7dfca347b4dd7a469800900602 Mon Sep 17 00:00:00 2001
From: Mark <alnyan@airmail.cc>
Date: Tue, 7 Jul 2020 21:27:15 +0300
Subject: [PATCH] Add ucat

---
 .gitignore            |  1 +
 etc/inittab           |  3 +++
 progs/base/bin/ucat.c | 38 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 42 insertions(+)
 create mode 100644 etc/inittab
 create mode 100644 progs/base/bin/ucat.c

diff --git a/.gitignore b/.gitignore
index bf6dcb5..20bfbf6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 kernel-hdr
 build
 progs/rsh
+progs/rc
diff --git a/etc/inittab b/etc/inittab
new file mode 100644
index 0000000..90659da
--- /dev/null
+++ b/etc/inittab
@@ -0,0 +1,3 @@
+# Runlevels: 1
+
+l0:1:once:/bin/login
diff --git a/progs/base/bin/ucat.c b/progs/base/bin/ucat.c
new file mode 100644
index 0000000..aaef2c0
--- /dev/null
+++ b/progs/base/bin/ucat.c
@@ -0,0 +1,38 @@
+#include <sys/socket.h>
+#include <string.h>
+#include <ygg/un.h>
+#include <unistd.h>
+#include <stdio.h>
+
+int main(int argc, char **argv) {
+    struct sockaddr_un un;
+    ssize_t rd;
+    int fd;
+    char buf[1024];
+
+    if (argc != 2) {
+        fprintf(stderr, "usage: %s SOCKET\n", argv[0]);
+        return -1;
+    }
+
+    un.sun_family = AF_UNIX;
+    strcpy(un.sun_path, argv[1]);
+
+    if ((fd = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) {
+        perror("socket()");
+        return -1;
+    }
+
+    if (connect(fd, (struct sockaddr *) &un, sizeof(un)) != 0) {
+        perror("connect()");
+        return -1;
+    }
+
+    while ((rd = recv(fd, buf, sizeof(buf), 0)) > 0) {
+        write(STDOUT_FILENO, buf, rd);
+    }
+
+    close(fd);
+
+    return 0;
+}