diff options
| -rw-r--r-- | docs/examples/smtp-multi.c | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/docs/examples/smtp-multi.c b/docs/examples/smtp-multi.c index 895dd2c15..5a3125b7c 100644 --- a/docs/examples/smtp-multi.c +++ b/docs/examples/smtp-multi.c @@ -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; } - - |