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- #include <stdio.h>
- #include <string.h>
- #include <curl/curl.h>
- #define FROM "<sender@example.org>"
- #define TO "<recipient@example.org>"
- static const char *payload_text[] = {
- "Date: Mon, 29 Nov 2010 21:54:29 +1100\n",
- "To: " TO "\n",
- "From: " FROM "(Example User)\n",
- "Message-ID: <dcd7cb36-11db-487a-9f3a-e652a9458efd@rfcpedant.example.org>\n",
- "Subject: SMTP example message\n",
- "\n", /* empty line to divide headers from body, see RFC5322 */
- ".The body of the message starts here.\n",
- "\n",
- ".\n",
- "It could be a lot of lines, could be MIME encoded, whatever.\n",
- "Check RFC5322.\n",
- NULL
- };
- struct upload_status {
- int lines_read;
- };
- static size_t payload_source(void *ptr, size_t size, size_t nmemb, void *userp)
- {
- struct upload_status *upload_ctx = (struct upload_status *)userp;
- const char *data;
- if((size == 0) || (nmemb == 0) || ((size*nmemb) < 1)) {
- return 0;
- }
- data = payload_text[upload_ctx->lines_read];
- if(data) {
- size_t len = strlen(data);
- memcpy(ptr, data, len);
- upload_ctx->lines_read++;
- return len;
- }
- return 0;
- }
- int main(void)
- {
- CURL *curl;
- CURLcode res = CURLE_OK;
- struct curl_slist *recipients = NULL;
- struct upload_status upload_ctx;
- upload_ctx.lines_read = 0;
- curl = curl_easy_init();
- if(curl) {
- curl_easy_setopt(curl, CURLOPT_URL, "smtp://localhost");
- curl_easy_setopt(curl, CURLOPT_MAIL_FROM, FROM);
- recipients = curl_slist_append(recipients, TO);
- curl_easy_setopt(curl, CURLOPT_MAIL_RCPT, recipients);
- 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_CRLF, 1L);
- 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 (int)res;
- }
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