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#include <stdio.h>
#include <netdb.h>
#include <netinet/in.h>
#include <sys/socket.h>
static void sendmail_write(const int sock,const char *str,const char *arg)
{
char buf[500];
if (arg != NULL)
snprintf(buf, sizeof(buf), str, arg);
else
snprintf(buf, sizeof(buf), str);
printf("%s \n",buf);
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;
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", from);
sendmail_write(sock, "MAIL FROM: %s\n", from);
sendmail_write(sock, "RCPT TO: %s\n", to);
sendmail_write(sock, "DATA\n", NULL);
sendmail_write(sock, "Subject: %s\n", subject);
sendmail_write(sock, "From: %s\n", from);
sendmail_write(sock, "To: %s\n", to);
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[])
{
char texte[100];
char texte1[100];
char texte2[200];
char texte3[1024];
char texte4[100];
//from
printf("votre addresse: \n");
scanf("%s",texte);
char * from = texte;
//destinataire
printf("destinataire: \n");
scanf("%s",texte1);
char * to = texte1;
//sujet
printf("sujet: \n");
scanf("%s",texte2);
char * sujet = texte2;
//corps du texte
printf("texte: \n");
scanf("%s",texte3);
char * data = texte3;
//hostname
printf("hostname: \n");
scanf("%s",texte4);
char * hN = texte4;
int ret = sendmail(
from, /* from */
to, /* to */
sujet, /* sujet */
data, /* data */
hN, /* hostname */
25 /* port */
);
if (ret != 0)
fprintf(stderr, "erreur d'envoi du mail (code: %i).\n", ret);
else
fprintf(stdout, "mail envoyé avec succès à %s.\n", to);
return ret;
} |
