Annotation of embedaddon/curl/docs/examples/ftpget.c, revision 1.1
1.1 ! misho 1: /***************************************************************************
! 2: * _ _ ____ _
! 3: * Project ___| | | | _ \| |
! 4: * / __| | | | |_) | |
! 5: * | (__| |_| | _ <| |___
! 6: * \___|\___/|_| \_\_____|
! 7: *
! 8: * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
! 9: *
! 10: * This software is licensed as described in the file COPYING, which
! 11: * you should have received as part of this distribution. The terms
! 12: * are also available at https://curl.haxx.se/docs/copyright.html.
! 13: *
! 14: * You may opt to use, copy, modify, merge, publish, distribute and/or sell
! 15: * copies of the Software, and permit persons to whom the Software is
! 16: * furnished to do so, under the terms of the COPYING file.
! 17: *
! 18: * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
! 19: * KIND, either express or implied.
! 20: *
! 21: ***************************************************************************/
! 22: #include <stdio.h>
! 23:
! 24: #include <curl/curl.h>
! 25:
! 26: /* <DESC>
! 27: * Get a single file from an FTP server.
! 28: * </DESC>
! 29: */
! 30:
! 31: struct FtpFile {
! 32: const char *filename;
! 33: FILE *stream;
! 34: };
! 35:
! 36: static size_t my_fwrite(void *buffer, size_t size, size_t nmemb, void *stream)
! 37: {
! 38: struct FtpFile *out = (struct FtpFile *)stream;
! 39: if(!out->stream) {
! 40: /* open file for writing */
! 41: out->stream = fopen(out->filename, "wb");
! 42: if(!out->stream)
! 43: return -1; /* failure, can't open file to write */
! 44: }
! 45: return fwrite(buffer, size, nmemb, out->stream);
! 46: }
! 47:
! 48:
! 49: int main(void)
! 50: {
! 51: CURL *curl;
! 52: CURLcode res;
! 53: struct FtpFile ftpfile = {
! 54: "curl.tar.gz", /* name to store the file as if successful */
! 55: NULL
! 56: };
! 57:
! 58: curl_global_init(CURL_GLOBAL_DEFAULT);
! 59:
! 60: curl = curl_easy_init();
! 61: if(curl) {
! 62: /*
! 63: * You better replace the URL with one that works!
! 64: */
! 65: curl_easy_setopt(curl, CURLOPT_URL,
! 66: "ftp://ftp.example.com/curl/curl-7.9.2.tar.gz");
! 67: /* Define our callback to get called when there's data to be written */
! 68: curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, my_fwrite);
! 69: /* Set a pointer to our struct to pass to the callback */
! 70: curl_easy_setopt(curl, CURLOPT_WRITEDATA, &ftpfile);
! 71:
! 72: /* Switch on full protocol/debug output */
! 73: curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
! 74:
! 75: res = curl_easy_perform(curl);
! 76:
! 77: /* always cleanup */
! 78: curl_easy_cleanup(curl);
! 79:
! 80: if(CURLE_OK != res) {
! 81: /* we failed */
! 82: fprintf(stderr, "curl told us %d\n", res);
! 83: }
! 84: }
! 85:
! 86: if(ftpfile.stream)
! 87: fclose(ftpfile.stream); /* close the local file */
! 88:
! 89: curl_global_cleanup();
! 90:
! 91: return 0;
! 92: }
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