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