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我试图通过对libcurl的发送电子邮件，但我似乎无法使它发挥发送电子邮件：通过libcurl中（C）
我的代码是挂在发送序列结束如下：
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
* Hostname was NOT found in DNS cache
[New Thread 0x7ffff2bf7700 (LWP 27664)]
[Thread 0x7ffff2bf7700 (LWP 27664) exited]
* Trying 2a00:f60::1:22...
* Connected to smtp.xxxxx.com (2a00:f60::1:22) port 25 (#0)
< 220 net3-nl-proxy-12.xxxxx.net ESMTP Postfix
> EHLO barrybackup
< 250-net3-nl-proxy-12.xxxxx.net
< 250-PIPELINING
< 250-SIZE 262144000
< 250-ETRN
< 250-STARTTLS
< 250-ENHANCEDSTATUSCODES
< 250-8BITMIME
< 250 DSN
> STARTTLS
< 220 2.0.0 Ready to start TLS
* successfully set certificate verify locations:
* CAfile: none
CApath: /etc/ssl/certs
* SSL connection using TLSv1.2/DHE-RSA-AES256-GCM-SHA384
* Server certificate:
* subject: OU=Domain Control Validated; OU=Hosted by xxxxx Services bv; OU=PositiveSSL; CN=smtp.xxxxx.com
* start date: 2015-06-23 00:00:00 GMT
* expire date: 2016-06-27 23:59:59 GMT
* issuer: C=GB; ST=Greater Manchester; L=Salford; O=COMODO CA Limited; CN=COMODO RSA Domain Validation Secure Server CA
* SSL certificate verify ok.
> EHLO barrybackup
< 250-net3-nl-proxy-12.xxxxx.net
< 250-PIPELINING
< 250-SIZE 262144000
< 250-ETRN
< 250-AUTH PLAIN LOGIN
< 250-ENHANCEDSTATUSCODES
< 250-8BITMIME
< 250 DSN
> AUTH LOGIN
< 334 VXNlcm5hbWU6
> aW5mb0BjdW1idWNrZXQubmw=
< 334 UGFzc3dvcmQ6
> Rmw0cGRyMGwyMDEy
< 235 2.7.0 Authentication successful
> MAIL FROM:<[email protected]>
< 250 2.1.0 Ok
> RCPT TO:<[email protected]>
< 250 2.1.5 Ok
> DATA
< 354 End data with <CR><LF>.<CR><LF>
我似乎无法找出任何线索，并完全卡住。
代码：
typedef struct {
const char* toEmail;
const char* toName;
const char* fromEmail;
const char* fromName;
const char** subject;
const char** email;
size_t pos;
} EmailData;
EmailData* initEmailData(EmailData* data, const char* toEmail,const char* toName,const char* fromEmail, const char* fromName, const char* subject, const char* body) {
data->toEmail = toEmail;
data->toName = toName;
data->fromEmail = fromEmail;
data->fromName = fromName;
// the added numbers to the length of the string are the pre-computed
// lengths of the strings to be concatenated + 1 (for termination char)
size_t htmlSize = strlen(body) + 24;
char *html = malloc(htmlSize);
snprintf(html, htmlSize, "%s%s", body, "\r\n");
size_t headerSize = strlen(subject) + 14;
char *header = malloc(1);
snprintf(header, headerSize, "%s%s%s", "Subject: ", subject, "\r\n");
size_t receiverSize = strlen(toName)+strlen(toEmail) + 30;
char *receiver = malloc(receiverSize);
snprintf(receiver, receiverSize, "%s%s (%s)%s", "To: ", toEmail, toName, "\r\n");
size_t senderSize = strlen(fromEmail) + strlen(fromName) + 30;
char *sender = malloc(senderSize);
snprintf(sender, senderSize, "%s%s (%s)%s", "From: ", fromEmail, fromName, "\r\n");
size_t timeSize = 40;
char* timeString = malloc(timeSize);
time_t rawtime = 0;
time(&rawtime);
struct tm *timeinfo = localtime(&rawtime);
strftime (timeString, timeSize, "Date: %a, %d %b %Y %T %z\r\n", timeinfo);
const char **payload = malloc(sizeof(char*) * 18);
const char* setup[] =
{
"MIME-Version: 1.0\r\n",
timeString,
receiver,
sender,
header,
// describe the data contained in the body
// https://tools.ietf.org/html/rfc2046#section-5.1.1
"Content-Type: multipart/alternative; boundary=border\r\n",
// empty line to divide headers from body, see RFC5322
"\r\n",
// all boundaries must start with two hyphens
"--border\r\n",
// let recipient interpret displaying text, send plain text & HTML
// specify the plain text encoding
"Content-Type: text/plain; charset=UTF-8\r\n",
"\r\n",
body,
"\r\n",
"--border\r\n",
// specify the HTML encoding
"Content-Type: text/html; charset=UTF-8\r\n",
"\r\n",
html,
"\r\n",
// final boundary ends with two hyphens as well
"--border--\r\n",
NULL
};
int i;
for (i = 0; setup[i]; i++) {
*(payload + i) = setup[i];
}
data->email = payload;
data->pos = 0;
return data;
}
size_t readCallback(char *ptr, size_t size, size_t nmemb, void *userp)
{
if((size == 0) || (nmemb == 0) || ((size * nmemb) < 1)) return 0;
EmailData *upload = (EmailData*) userp;
const char *email = upload->email[upload->pos];
if(email)
{
size_t len = strlen(email);
if (len > size * nmemb) return CURL_READFUNC_ABORT;
memcpy(ptr, email, len);
upload->pos++;
return len;
}
return 0;
}
int sendMailUsingCurl(char* toEmail, char* toName,char* fromEmail, char* fromName, char* subject,char* body) {
CURLcode res = CURLE_OK;
struct curl_slist *recipients = NULL;
EmailData data = {0};
initEmailData(&data,toEmail,toName,fromEmail,fromName,subject,body);
CURL *curl = curl_easy_init();
if (curl)
{
// set username and password
curl_easy_setopt(curl, CURLOPT_USERNAME, "[email protected]");
curl_easy_setopt(curl, CURLOPT_PASSWORD, "xxxxx");
curl_easy_setopt(curl, CURLOPT_URL, "smtp://smtp.x.com:25/");
curl_easy_setopt(curl, CURLOPT_USE_SSL, (long)CURLUSESSL_ALL);
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
curl_easy_setopt(curl, CURLOPT_MAIL_FROM, fromEmail);
recipients = curl_slist_append(recipients, toEmail);
curl_easy_setopt(curl, CURLOPT_MAIL_RCPT, recipients);
curl_easy_setopt(curl, CURLOPT_READFUNCTION, readCallback);
curl_easy_setopt(curl, CURLOPT_READDATA, &data);
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
// useful for debugging encryped traffic
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
// send the message
res = curl_easy_perform(curl);
if(res != CURLE_OK) fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));
curl_slist_free_all(recipients);
curl_easy_cleanup(curl);
}
return 1;
}
不幸的是，GDB没有返回任何东西，我不明白的代码错误，但仍然是没有发送任何。
每一条线索都会被认可。