/************************************************************* * smtp.cpp - Use SMTP to send an eMail with an Attachment and verify * * Copyright (C) 2001-2002 by ShadowStar. * * Use and modify freely. * * http://shadowstar.126.com/ * ************************************************************* *///---------------------------------------------------------------------------
#include <winsock2.h>#include <string.h>#include <stdio.h>
const int BASE64_MAXLINE = 76;const char EOL[] = "/r/n";const char BASE64_TAB[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" "abcdefghijklmnopqrstuvwxyz0123456789+/";const char HEADER[] = "HELO support.com/r/n" //"AUTH LOGIN/r/n" //+ BASE64 USER + BASE64 PASS "MAIL FROM: chinansl@support.com/r/n" "RCPT TO: shadowstar@support.com/r/n" "DATA/r/n" "FROM: chinansl@support.com/r/n" "TO: shadowstar@support.com/r/n" "SUBJECT: this is a test/r/n" "Date: 2002-5-14/r/n" "X-Mailer: shadowstar's mailer/r/n" "MIME-Version: 1.0/r/n" "Content-type: multipart/mixed; boundary=/"#BOUNDARY#/"/r/n" //"Content-Type: text/plain; charset=gb2312/r/n" "/r/n";const char CONTENT[] = "/r/n--#BOUNDARY#/r/n" "Content-Type: text/plain; charset=gb2312/r/n" "Content-Transfer-Encoding: quoted-printable/r/n" "/r/n" "/*************************************************************" " * smtp.cpp - Use SMTP to send an eMail with an Attachment and verify *" " * Copyright (C) 2001-2002 by ShadowStar. *" " * Use and modify freely. *" " * http://shadowstar.126.com/ *" " *************************************************************" " *//r/n" "/r/n";const char ATT_HEADER[] = "/r/n--#BOUNDARY#/r/n" "Content-Type: application/octet-stream; name=smtp.exe/r/n" "Content-Disposition: attachment; filename=smtp.exe/r/n" "Content-Transfer-Encoding: base64/r/n" "/r/n";
//---------------------------------------------------------------------------int ANSIToBase64(const char *szInANSI, int nInLen, char *szOutBase64, int nOutLen);
int main(int argc, char* argv[]){ WSADATA wsaData; int SockFD; struct sockaddr_in ServAddr; char buf[0x100]; int x; FILE *fp; char *aatt = new char[0x400000]; char *batt = new char[0x555556];
WSAStartup(MAKEWORD(2,2), &wsaData);
LPHOSTENT pHost = gethostbyname("172.16.234.111"); SockFD = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); ServAddr.sin_family = AF_INET; ServAddr.sin_addr.s_addr = *(ULONG *)pHost->h_addr_list[0]; ServAddr.sin_port = htons(25);
connect(SockFD, (struct sockaddr *)&ServAddr, sizeof(ServAddr)); //send HEADER send(SockFD, HEADER, strlen(HEADER), 0); //send CONTENT send(SockFD, CONTENT, strlen(CONTENT), 0); //send ATT_HEADER send(SockFD, ATT_HEADER, strlen(ATT_HEADER), 0); //read attachment fp = fopen(argv[0], "rb"); fseek(fp, 0, 2); x = ftell(fp); if (x > 0x400000) x = 0; rewind(fp); fread(aatt, x, 1, fp); fclose(fp); x = ANSIToBase64(aatt, x, batt, 0x555556); //send base64 attachment send(SockFD, batt, x, 0);
send(SockFD, "./r/n", strlen("./r/n"), 0); //end send(SockFD, "QUIT/r/n", strlen("QUIT/r/n"), 0); //quit
closesocket(SockFD); WSACleanup();
delete []aatt; delete []batt; return 0;}//---------------------------------------------------------------------------int ANSIToBase64(const char *szInANSI, int nInLen, char *szOutBase64, int nOutLen){ //Input Parameter validation if ((szInANSI == NULL) || (nInLen == 0) || (szOutBase64 == NULL) || (nOutLen == 0)) return 0; if (nOutLen < (nInLen*4/3 + 1 + nInLen*4/3/BASE64_MAXLINE*2 + 1 + 4)) return 0;
//Set up the parameters prior to the main encoding loop int nInPos = 0; int nOutPos = 0; int nLineLen = 0; int c1, c2, c3; int i;
// Get three characters at a time from the input buffer and encode them for (i=0; i<nInLen/3; ++i) { //Get the next 2 characters c1 = szInANSI[nInPos++] & 0xFF; c2 = szInANSI[nInPos++] & 0xFF; c3 = szInANSI[nInPos++] & 0xFF;
//Encode into the 4 6 bit characters szOutBase64[nOutPos++] = BASE64_TAB[c1 >> 2]; szOutBase64[nOutPos++] = BASE64_TAB[((c1 << 4) | (c2 >> 4)) & 0x3F]; szOutBase64[nOutPos++] = BASE64_TAB[((c2 << 2) | (c3 >> 6)) & 0x3F]; szOutBase64[nOutPos++] = BASE64_TAB[c3 & 0x3F]; nLineLen += 4;
//Handle the case where we have gone over the max line boundary if (nLineLen > BASE64_MAXLINE - 4) { szOutBase64[nOutPos++] = EOL[0]; szOutBase64[nOutPos++] = EOL[1]; nLineLen = 0; } }
// Encode the remaining one or two characters in the input buffer switch (nInLen % 3) { case 0: { szOutBase64[nOutPos++] = EOL[0]; szOutBase64[nOutPos++] = EOL[1]; break; } case 1: { c1 = szInANSI[nInPos] & 0xFF; szOutBase64[nOutPos++] = BASE64_TAB[(c1 & 0xFC) >> 2]; szOutBase64[nOutPos++] = BASE64_TAB[((c1 & 0x03) << 4)]; szOutBase64[nOutPos++] = '='; szOutBase64[nOutPos++] = '='; szOutBase64[nOutPos++] = EOL[0]; szOutBase64[nOutPos++] = EOL[1]; break; } case 2: { c1 = szInANSI[nInPos++] & 0xFF; c2 = szInANSI[nInPos] & 0xFF; szOutBase64[nOutPos++] = BASE64_TAB[(c1 & 0xFC) >> 2]; szOutBase64[nOutPos++] = BASE64_TAB[((c1 & 0x03) << 4) | ((c2 & 0xF0) >> 4)]; szOutBase64[nOutPos++] = BASE64_TAB[((c2 & 0x0F) << 2)]; szOutBase64[nOutPos++] = '='; szOutBase64[nOutPos++] = EOL[0]; szOutBase64[nOutPos++] = EOL[1]; break; } default: { return 0; } }
szOutBase64[nOutPos] = 0;
return nOutPos;}
