Add Music Manager's curl 7.21.2 source.

Change-Id: I259a43fa52d581524a5ce8ae1711467acb1d9d50

1 files changed, 161 insertions, 0 deletions

diff --git a/docs/examples/ftpuploadresume.c b/docs/examples/ftpuploadresume.c
new file mode 100644
index 0000000..81a790a
--- /dev/null
+++ b/docs/examples/ftpuploadresume.c
@@ -0,0 +1,161 @@
+/*****************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ *
+ * 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++ */
+#ifdef __MINGW32__
+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;
+}