diff options
Diffstat (limited to 'plugins/FTPFileYM/curl/docs/examples/ftpuploadresume.c')
| -rw-r--r-- | plugins/FTPFileYM/curl/docs/examples/ftpuploadresume.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/plugins/FTPFileYM/curl/docs/examples/ftpuploadresume.c b/plugins/FTPFileYM/curl/docs/examples/ftpuploadresume.c new file mode 100644 index 0000000000..55b8986c7c --- /dev/null +++ b/plugins/FTPFileYM/curl/docs/examples/ftpuploadresume.c @@ -0,0 +1,174 @@ +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * + * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al. + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms + * are also available at http://curl.haxx.se/docs/copyright.html. + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ***************************************************************************/ +/* Upload to FTP, resuming failed transfers + * + * Compile for MinGW like this: + * gcc -Wall -pedantic -std=c99 ftpuploadwithresume.c -o ftpuploadresume.exe + * -lcurl -lmsvcr70 + * + * Written by Philip Bock + */ + +#include <stdlib.h> +#include <stdio.h> + +#include <curl/curl.h> + +#if defined(_MSC_VER) && (_MSC_VER < 1300) +# error _snscanf requires MSVC 7.0 or later. +#endif + +/* The MinGW headers are missing a few Win32 function definitions, + you shouldn't need this if you use VC++ */ +#if defined(__MINGW32__) && !defined(__MINGW64__) +int __cdecl _snscanf(const char * input, size_t length, const char * format, ...); +#endif + + +/* parse headers for Content-Length */ +size_t getcontentlengthfunc(void *ptr, size_t size, size_t nmemb, void *stream) +{ + int r; + long len = 0; + + /* _snscanf() is Win32 specific */ + r = _snscanf(ptr, size * nmemb, "Content-Length: %ld\n", &len); + + if (r) /* Microsoft: we don't read the specs */ + *((long *) stream) = len; + + return size * nmemb; +} + +/* discard downloaded data */ +size_t discardfunc(void *ptr, size_t size, size_t nmemb, void *stream) +{ + return size * nmemb; +} + +/* read data to upload */ +size_t readfunc(void *ptr, size_t size, size_t nmemb, void *stream) +{ + FILE *f = stream; + size_t n; + + if (ferror(f)) + return CURL_READFUNC_ABORT; + + n = fread(ptr, size, nmemb, f) * size; + + return n; +} + + +int upload(CURL *curlhandle, const char * remotepath, const char * localpath, + long timeout, long tries) +{ + FILE *f; + long uploaded_len = 0; + CURLcode r = CURLE_GOT_NOTHING; + int c; + + f = fopen(localpath, "rb"); + if (f == NULL) { + perror(NULL); + return 0; + } + + curl_easy_setopt(curlhandle, CURLOPT_UPLOAD, 1L); + + curl_easy_setopt(curlhandle, CURLOPT_URL, remotepath); + + if (timeout) + curl_easy_setopt(curlhandle, CURLOPT_FTP_RESPONSE_TIMEOUT, timeout); + + curl_easy_setopt(curlhandle, CURLOPT_HEADERFUNCTION, getcontentlengthfunc); + curl_easy_setopt(curlhandle, CURLOPT_HEADERDATA, &uploaded_len); + + curl_easy_setopt(curlhandle, CURLOPT_WRITEFUNCTION, discardfunc); + + curl_easy_setopt(curlhandle, CURLOPT_READFUNCTION, readfunc); + curl_easy_setopt(curlhandle, CURLOPT_READDATA, f); + + curl_easy_setopt(curlhandle, CURLOPT_FTPPORT, "-"); /* disable passive mode */ + curl_easy_setopt(curlhandle, CURLOPT_FTP_CREATE_MISSING_DIRS, 1L); + + curl_easy_setopt(curlhandle, CURLOPT_VERBOSE, 1L); + + for (c = 0; (r != CURLE_OK) && (c < tries); c++) { + /* are we resuming? */ + if (c) { /* yes */ + /* determine the length of the file already written */ + + /* + * With NOBODY and NOHEADER, libcurl will issue a SIZE + * command, but the only way to retrieve the result is + * to parse the returned Content-Length header. Thus, + * getcontentlengthfunc(). We need discardfunc() above + * because HEADER will dump the headers to stdout + * without it. + */ + curl_easy_setopt(curlhandle, CURLOPT_NOBODY, 1L); + curl_easy_setopt(curlhandle, CURLOPT_HEADER, 1L); + + r = curl_easy_perform(curlhandle); + if (r != CURLE_OK) + continue; + + curl_easy_setopt(curlhandle, CURLOPT_NOBODY, 0L); + curl_easy_setopt(curlhandle, CURLOPT_HEADER, 0L); + + fseek(f, uploaded_len, SEEK_SET); + + curl_easy_setopt(curlhandle, CURLOPT_APPEND, 1L); + } + else { /* no */ + curl_easy_setopt(curlhandle, CURLOPT_APPEND, 0L); + } + + r = curl_easy_perform(curlhandle); + } + + fclose(f); + + if (r == CURLE_OK) + return 1; + else { + fprintf(stderr, "%s\n", curl_easy_strerror(r)); + return 0; + } +} + +int main(int c, char **argv) +{ + CURL *curlhandle = NULL; + + curl_global_init(CURL_GLOBAL_ALL); + curlhandle = curl_easy_init(); + + upload(curlhandle, "ftp://user:pass@example.com/path/file", "C:\\file", 0, 3); + + curl_easy_cleanup(curlhandle); + curl_global_cleanup(); + + return 0; +} |