Like Tree1Likes
  • 1 Post By tabstop

Don't understand error...

This is a discussion on Don't understand error... within the C Programming forums, part of the General Programming Boards category; I have a syntax error which after searching around for 15 minutes, am unable to yield results. The error has ...

  1. #1
    Registered User
    Join Date
    Mar 2011
    Posts
    216

    Don't understand error...

    I have a syntax error which after searching around for 15 minutes, am unable to yield results. The error has been commented at lines 70-71. It's a syntax error, so it's missing something, but I don't know what.

    I want to make it be able to let you enter a file to upload, specify the ftp directory, and then rename the file to what you desire.

    Code:
    #include <stdio.h>
    #include <string.h>
     
    #include <curl/curl.h>
    #include <curl/types.h> 
    #include <curl/easy.h>
    #include <sys/types.h>
    #include <sys/stat.h>
    #include <fcntl.h>
    #include <errno.h>
    #ifdef WIN32
    #include <io.h>
    #else
    #include <unistd.h>
    #endif
     
    /* NOTE: if you want this example to work on Windows with libcurl as a
       DLL, you MUST also provide a read callback with CURLOPT_READFUNCTION.
       Failing to do so will give you a crash since a DLL may not use the
       variable's memory when passed in to it from an app like this. */ 
    static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *stream)
    {
      /* in real-world cases, this would probably get this data differently
         as this fread() stuff is exactly what the library already would do
         by default internally */ 
      size_t retcode = fread(ptr, size, nmemb, stream);
     
      printf("*** We read %d bytes from file\n", retcode);
      return retcode;
    }
     
    int main(void)
    {
      char LOCAL_FILE[16];
      char RENAME_FILE_TO[16];
      char UPLOAD_FILE_AS[16];
        
      CURL *curl;
      CURLcode res;
      FILE *hd_src;
      struct stat file_info;
      double speed_upload, total_time;
      curl_off_t fsize;
      
      char *REMOTE_URL = "ftp://example.com/upload_here/";
      char destination[26];
      
      printf("Enter filename to upload (file must be in same working directory ~ enclose filename in double quotes) - ");
      scanf("%s",LOCAL_FILE);
      
      strcpy(UPLOAD_FILE_AS, LOCAL_FILE);
      
      printf("\nEnter the new filename (enclose filename in double quotes) - ");
      scanf("%s",RENAME_FILE_TO);
      
      printf("Enter destination for file (including the new filename ~ leave blank for root)\n");
      printf("%s",REMOTE_URL);
      scanf("%s",destination);
      
      strcat(REMOTE_URL, destination);
     
      struct curl_slist *headerlist=NULL;
      static const char buf_1 [] = "RNFR " UPLOAD_FILE_AS; // Syntax error before UPLOAD_FILE_AS
      static const char buf_2 [] = "RNTO " RENAME_FILE_TO; // Syntax error before RENAME_FILE_TO
     
      /* get the file size of the local file */ 
      if(stat(LOCAL_FILE, &file_info)) {
        printf("Couldnt open '%s': %s\n", LOCAL_FILE, strerror(errno));
        return 1;
      }
      fsize = (curl_off_t)file_info.st_size;
     
      printf("Local file size: %" CURL_FORMAT_CURL_OFF_T " bytes.\n", fsize);
     
      /* get a FILE * of the same file */ 
      hd_src = fopen(LOCAL_FILE, "rb");
     
      /* In windows, this will init the winsock stuff */ 
      curl_global_init(CURL_GLOBAL_ALL);
     
      /* get a curl handle */ 
      curl = curl_easy_init();
      if(curl) {
        /* build a list of commands to pass to libcurl */ 
        headerlist = curl_slist_append(headerlist, buf_1);
        headerlist = curl_slist_append(headerlist, buf_2);
     
        /* we want to use our own read function */ 
        curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
     
        /* enable uploading */ 
        curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
     
        /* specify target */ 
        curl_easy_setopt(curl,CURLOPT_URL, REMOTE_URL);
     
        /* pass in that last of FTP commands to run after the transfer */ 
        curl_easy_setopt(curl, CURLOPT_POSTQUOTE, headerlist);
     
        /* now specify which file to upload */ 
        curl_easy_setopt(curl, CURLOPT_READDATA, hd_src);
        
        /* specify username and password for ftp */
        curl_easy_setopt(curl, CURLOPT_USERNAME, "username");
        curl_easy_setopt(curl, CURLOPT_PASSWORD, "password");
     
        /* Set the size of the file to upload (optional).  If you give a *_LARGE
           option you MUST make sure that the type of the passed-in argument is a
           curl_off_t. If you use CURLOPT_INFILESIZE (without _LARGE) you must
           make sure that to pass in a type 'long' argument. */ 
        curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
                         (curl_off_t)fsize);
                         
        /* enable verbose for easier tracing */ 
        curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
     
        /* Now run off and do what you've been told! */ 
        res = curl_easy_perform(curl);
        
        /* now extract transfer info */ 
        curl_easy_getinfo(curl, CURLINFO_SPEED_UPLOAD, &speed_upload);
        curl_easy_getinfo(curl, CURLINFO_TOTAL_TIME, &total_time);
     
        printf("Speed: %.3f bytes/sec during %.3f seconds\n", speed_upload, total_time);
     
        /* clean up the FTP commands list */ 
        curl_slist_free_all (headerlist);
     
        /* always cleanup */ 
        curl_easy_cleanup(curl);
      }
      fclose(hd_src); /* close the local file */ 
      curl_global_cleanup();
      getchar();
      return 0;
    }
    Thanks

  2. #2
    ATH0 quzah's Avatar
    Join Date
    Oct 2001
    Posts
    14,826
    Quote Originally Posted by binks View Post
    static const char buf_1 [] = "RNFR " UPLOAD_FILE_AS; // Syntax error before UPLOAD_FILE_AS
    static const char buf_2 [] = "RNTO " RENAME_FILE_TO; // Syntax error before RENAME_FILE_TO
    What on earth are you doing? RENAME_FILE_TO is an array you have defined at the top. You are basically doing:
    Code:
    char array1[ BUFSIZ ];
    char array2[] = "hello" array1;

    Quzah.
    Hope is the first step on the road to disappointment.

  3. #3
    Registered User
    Join Date
    Jan 2010
    Posts
    412
    I think he's trying to concatenate the strings.
    @OP: Look in to strncat

  4. #4
    and the Hat of Guessing tabstop's Avatar
    Join Date
    Nov 2007
    Posts
    14,185
    This sort of thing only works when you have two string literals:
    Code:
    "Hi" " " "there"
    in your source ends up being one string. If your RENAME_FILE_TO was a macro that expanded to a string, everybody would be happy. Since it's a real variable, then you have to actually treat it as such.

  5. #5
    Registered User
    Join Date
    Mar 2011
    Posts
    216
    So all I need to do is strcat UPLOAD_FILE_AS and RENAME_FILE_TO to buf_1 and buf_2?

  6. #6
    Banned
    Join Date
    Aug 2010
    Location
    Ontario Canada
    Posts
    9,547
    Quote Originally Posted by binks View Post
    So all I need to do is strcat UPLOAD_FILE_AS and RENAME_FILE_TO to buf_1 and buf_2?
    Being mindful that you have your dividers ( \ or / ) in the right places...

    It may not be as simple as sticking one on the end of another... you may have to strcopy() the first section to a buffer, strcat() the divider then strcat() the last part...

  7. #7
    Registered User
    Join Date
    Mar 2011
    Posts
    216
    It requires dividers? How so?

  8. #8
    and the Hat of Guessing tabstop's Avatar
    Join Date
    Nov 2007
    Posts
    14,185
    I believe Tater is referring to path dividers, as in C:\hey\look\a\file or yahoo.com/another/file.
    CommonTater likes this.

  9. #9
    Registered User
    Join Date
    Mar 2011
    Posts
    216
    Oh, I see

Popular pages Recent additions subscribe to a feed

Similar Threads

  1. Help I don't understand my seg error!
    By Kayl669 in forum C Programming
    Replies: 4
    Last Post: 09-29-2010, 10:39 AM
  2. Error i don't understand :(
    By jadehippo in forum C Programming
    Replies: 10
    Last Post: 07-14-2009, 11:09 PM
  3. Can't understand my error...
    By dnguyen1022 in forum C++ Programming
    Replies: 22
    Last Post: 03-27-2009, 10:33 AM
  4. I don't understand this error...
    By KneeGrow in forum C++ Programming
    Replies: 18
    Last Post: 11-16-2004, 11:59 PM
  5. Don't understand how to fix this error
    By mattyans in forum C Programming
    Replies: 1
    Last Post: 03-21-2002, 07:23 PM

Tags for this Thread


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21