NASM - The Netwide Assembler
NASM Forum => Programming with NASM => Topic started by: ngochuan1st on August 28, 2013, 05:26:26 AM
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i want to send mail by nasm using Gmail account??
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Gunner gave you some pretty good hints to get started here:
http://forum.nasm.us/index.php?topic=1497.msg6133#msg6133
Socket, connect, read or recv. It'll probably say something like "+OK Gmail ready", but check. Then write or send your username. It'll be picky about the fact that it needs to end in both a carriage return and linefeed. Then read or recv again. Maybe just say "+OK" but might say something about more authentification needed. Write/send your password (CRLF again). Read/recv again - hopefully it'll say "+OK logged in"! (no use in continuing if you get an error at any point along the line!) Write/send the command to send mail - I imagine it's "post"(CRLF) but check those links Gunner gave you. Read/recv "+OK"? Write/send your mail. It'll need a certain minimal header - To: From: Date:, at least. End the header with a blank line (CRLFCRLF), then the content of your mail. End with a single '.' on a line by itself. Read/recv to make sure it's okay. Write/send the "quit" command. You really should close your socket, but if you just exit the OS will take care of that, I think.
Yeah... I know you want an example. I don't have an example of sending mail at hand. Would an example of getting a web page help you at all?
Best,
Frank
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This code C++ but doesn't work:
#include <windows.h>
#include <stdio.h>
#include <conio.h>
#include <io.h>
#pragma comment(lib,"ws2_32.lib")
#define snprintf _snprintf
static void sendmail_write(const int sock, const char *str, const char *arg)
{
char buf[4096];
if (arg != NULL)
snprintf(buf, sizeof(buf), str, arg);
else
snprintf(buf, sizeof(buf), str);
send(sock, buf, strlen(buf), 0);
}
static int sendmail(const char *from, const char *to, const char *subject, const char *body, const char *hostname, const int port)
{
struct hostent *host;
struct sockaddr_in saddr_in;
int sock = 0;
WSADATA wsaData;
if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0)
{
return -1;
}
sock = socket(AF_INET, SOCK_STREAM, 0);
host = gethostbyname(hostname);
saddr_in.sin_family = AF_INET;
saddr_in.sin_port = htons((u_short)port);
saddr_in.sin_addr.s_addr = 0;
memcpy((char*)&(saddr_in.sin_addr), host->h_addr, host->h_length);
if (connect(sock, (struct sockaddr*)&saddr_in, sizeof(saddr_in)) == -1)
{
return -2;
}
sendmail_write(sock, "HELO %s\n", "Testname"); // greeting****************
sendmail_write(sock, "MAIL FROM: %s\n", from); // from
sendmail_write(sock, "RCPT TO: %s\n", to); // to
sendmail_write(sock, "DATA\n", NULL); // begin data
// next comes mail headers
sendmail_write(sock, "From: %s\n", from);
sendmail_write(sock, "To: %s\n", to);
sendmail_write(sock, "Subject: %s\n", subject);
sendmail_write(sock, "\n", NULL);
sendmail_write(sock, "%s\n", body); // data
sendmail_write(sock, ".\n", NULL); // end data
sendmail_write(sock, "QUIT\n", NULL); // terminate
close(sock);//*******************************
return 0;
}
int main(int argc, char *argv[]) {
int ret = sendmail("from@gmail.com", "to@gmail.com", "Subject", "body", "smtp.gmail.com", 25);
if (ret != 0)
fprintf(stderr, "Failed to send mail (code: %i).\n", ret);
else
fprintf(stdout, "Mail successfully sent.\n");
getch();
return ret;
}