From e9caf5798ac31ddb12954bfc9acf2499ed0746fb Mon Sep 17 00:00:00 2001
From: Luna Mendes <lkmnds@gmail.com>
Date: Sat, 2 Dec 2017 02:43:22 -0300
Subject: [PATCH] it works

---
 Makefile |   3 ++
 log.h    |   9 ++++
 rsudo.c  | 142 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 154 insertions(+)
 create mode 100644 log.h
 create mode 100644 rsudo.c

diff --git a/Makefile b/Makefile
index e69de29..c738ac7 100644
--- a/Makefile
+++ b/Makefile
@@ -0,0 +1,3 @@
+
+all:
+	gcc -o ./rsudo rsudo.c
diff --git a/log.h b/log.h
new file mode 100644
index 0000000..d932abb
--- /dev/null
+++ b/log.h
@@ -0,0 +1,9 @@
+#ifndef __LOG_H__
+#define __LOG_H__
+
+#define LOG_DEBUG(m, s) printf("[DEBUG] [%s] %s\n", m, s)
+#define LOG_INFO(m, s) printf("[INFO] [%s] %s\n", m, s)
+#define LOG_WARN(m, s) printf("[WARN] [%s] %s\n", m, s)
+#define LOG_ERROR(m, s) printf("[ERROR] [%s] %s\n", m, s)
+
+#endif
diff --git a/rsudo.c b/rsudo.c
new file mode 100644
index 0000000..dbb5a44
--- /dev/null
+++ b/rsudo.c
@@ -0,0 +1,142 @@
+/*
+  rsudo - request sudo
+
+  this file and distributions are
+  memework property.
+
+  unauthorized distribution of this file
+  and related files (like header files)
+  is strictly prohibited by people other than the owner.
+
+  Copyright (C) Luna Mendes 2017
+*/
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <string.h>
+
+#include "log.h"
+
+const char* sock_path = "/home/luna/local.git/memed/memed.succ";
+
+struct header_s {
+    unsigned int len;
+    int op;
+};
+
+char *join(const char* s1, const char* s2)
+{
+    char* result = malloc(strlen(s1) + strlen(s2) + 1);
+
+    if (result)
+    {
+        strcpy(result, s1);
+        strcat(result, s2);
+    }
+
+    return result;
+}
+
+int main(int argc, char **argv)
+{
+    // the idea here is to open the socket
+    // send a message to it and run asap
+    struct sockaddr_un addr;
+
+    // receiving data from socket
+    struct header_s header;
+    char buffer[1024];
+
+    // fd file descriptor
+    // rc read count
+    int fd, rc;
+
+    if ( (fd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
+    {
+        perror("socket error");
+        exit(-1);
+    }
+
+    memset(&addr, 0, sizeof(addr));
+    addr.sun_family = AF_UNIX;
+
+    strncpy(addr.sun_path, sock_path, sizeof(addr.sun_path)-1);
+
+    LOG_INFO("main", "connecting");
+    if ( connect(fd, (struct sockaddr*)&addr, sizeof(addr)) == -1 )
+    {
+        perror("connect error");
+        exit(-1);
+    }
+
+    // read the hello
+    // We start by reading and filling our header
+    if ((rc = recv(fd, &header, 8, 0)) < 0)
+    {
+        perror("recv");
+        exit(-1);
+    }
+
+    printf("%d %d\n", header.len, header.op);
+
+    // Then we proceed to, with the data from header,
+    // read the message
+    if ((rc = recv(fd, &buffer, header.len, 0)) < 0)
+    {
+        perror("recv");
+        exit(-1);
+    }
+
+
+    if(strlen(buffer) - 1 != header.len)
+    {
+        printf("%u %d\n", strlen(buffer), header.len);
+        LOG_ERROR("main", "hello length != header length");
+        exit(-1);
+    }
+
+    if(header.op != 0)
+    {
+        LOG_ERROR("main", "incorrect header op");
+        exit(-1);
+    }
+
+    LOG_INFO("main", "finished hello");
+
+    char *tot = "";
+    for(int i = 1; i < argc; i++)
+    {
+        char *arg = argv[i];
+        tot = join(tot, arg);
+
+        if(i != argc - 1) tot = join(tot, " ");
+    }
+
+    printf("sending command: %s\n", tot);
+
+    // encode our data
+    struct header_s send_h;
+    send_h.len = strlen(tot);
+    send_h.op = 2;
+    
+    if (send(fd, &send_h, sizeof(send_h), 0) < 0)
+    {
+        perror("send req");
+        exit(-1);
+    }
+    
+    if (send(fd, tot, strlen(tot), 0) < 0)
+    {
+        perror("send req total");
+        exit(-1);
+    }
+
+    shutdown(fd, SHUT_RDWR);
+
+    printf("Successfully communicated your command to memed!\n");
+
+    close(fd);
+    exit(0);
+}