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examples: Added comments to SMTP multi example based on other MAIL examples

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This commit is contained in:
Steve Holme 2014-01-12 16:44:59 +00:00
parent 5d25d626b1
commit 190e41f840
1 changed files with 24 additions and 8 deletions
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32
docs/examples/smtp-multi.c
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@ -114,23 +114,38 @@ int main(void)
if(!mcurl)
return 2;
/* This is the URL for your mailserver */
curl_easy_setopt(curl, CURLOPT_URL, "smtp://mail.example.com");
/* Note that this option isn't strictly required, omitting it will result in
* libcurl sending the MAIL FROM command with empty sender data. All
* autoresponses should have an empty reverse-path, and should be directed
* to the address in the reverse-path which triggered them. Otherwise, they
* could cause an endless loop. See RFC 5321 Section 4.5.5 for more details.
*/
curl_easy_setopt(curl, CURLOPT_MAIL_FROM, FROM);
/* Add two recipients, in this particular case they correspond to the
* To: and Cc: addressees in the header, but they could be any kind of
* recipient. */
recipients = curl_slist_append(recipients, TO);
recipients = curl_slist_append(recipients, CC);
curl_easy_setopt(curl, CURLOPT_MAIL_RCPT, recipients);
curl_easy_setopt(curl, CURLOPT_URL, "smtp://smtp.example.com");
/* We're using a callback function to specify the payload (the headers and
* body of the message). You could just use the CURLOPT_READDATA option to
* specify a FILE pointer to read from. */
curl_easy_setopt(curl, CURLOPT_READFUNCTION, payload_source);
curl_easy_setopt(curl, CURLOPT_READDATA, &upload_ctx);
curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
curl_easy_setopt(curl, CURLOPT_MAIL_FROM, FROM);
curl_easy_setopt(curl, CURLOPT_MAIL_RCPT, recipients);
/* Tell the multi stack about our easy handle */
curl_multi_add_handle(mcurl, curl);
/* Record the start time which we can use later */
mp_start = tvnow();
/* we start some action by calling perform right away */
/* We start some action by calling perform right away */
curl_multi_perform(mcurl, &still_running);
while(still_running) {
@ -148,7 +163,7 @@ int main(void)
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
/* set a suitable timeout to play around with */
/* Set a suitable timeout to play around with */
timeout.tv_sec = 1;
timeout.tv_usec = 0;
@ -161,7 +176,7 @@ int main(void)
timeout.tv_usec = (curl_timeo % 1000) * 1000;
}
/* get file descriptors from the transfers */
/* Get file descriptors from the transfers */
curl_multi_fdset(mcurl, &fdread, &fdwrite, &fdexcep, &maxfd);
/* In a real-world program you OF COURSE check the return code of the
@ -188,7 +203,10 @@ int main(void)
}
}
/* Free the list of recipients */
curl_slist_free_all(recipients);
/* Always cleanup */
curl_multi_remove_handle(mcurl, curl);
curl_multi_cleanup(mcurl);
curl_easy_cleanup(curl);
@ -196,5 +214,3 @@ int main(void)
return 0;
}