Thread: trying to read a file using cgi scripting and C

i have a flex interface ...
I have a program that reads data from standard in and writes to a file..
Very simple. The problem is..
when i try to access the file with a url the .jpg file gives me trash and not the picture...

I am not exactly sure what i am doing wrong.. I have 2 post...
i will use the code tag for both...

The info in the image file...

Code:

# more  /opt/moneylikes/tmp/*  
::::::::::::::
/opt/moneylikes/tmp/file
::::::::::::::
------------cH2gL6gL6GI3KM7ei4ae0gL6KM7ae0
Content-Disposition: form-data; name="Filename"

Botanical Garden 239.JPG
------------cH2gL6gL6GI3KM7ei4ae0gL6KM7ae0
Content-Disposition: form-data; name="Filedata"; filename="Botanical Garden 239.JPG"
Content-Type: application/octet-stream

ÿØÿáPHExifMM*
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# mv  /opt/moneylikes/tmp/file /opt/moneylikes/tmp/file.jpg
# more  /opt/moneylikes/tmp/*                              
------------cH2KM7Ij5Ef1ae0cH2ae0KM7ei4Ef1
Content-Disposition: form-data; name="Filename"

Botanical Garden 239.JPG
------------cH2KM7Ij5Ef1ae0cH2ae0KM7ei4Ef1
Content-Disposition: form-data; name="Filedata"; filename="Botanical Garden 239.JPG"
Content-Type: application/octet-stream

ÿØÿáPHExifMM*
(1âi    ^L^LE8ê



EASTMAN KODAK COMPANYKODAK EASYSHARE C613 ZOOM DIGITAL CAMERAààKODAK EASYSHARE C613 ZOOM DIGITAL CAMERA'òú"'0221
*2
:B
J|1¸R..0100....
àÁ..9îhiµ..E«1¥½PÛÆzqâ¬çN+ùR¨Ó±/a¸Tr1..Hä)LJÉõíS®[jJÈH¤eÚÙ"æ¢þ2I¢z½'È9Å>$Ó        ÏøÁíÅJØwIjlÒ¤òÀÆ
              Ön¸ÏÖpx5<²±¹Ç8¨BHÍY·ÿZ£tQ,Ð..)Û*HÛp¤d,ÀqR*m&ÔÖWHW;Fìtõ¨Ä¥»T¯ÓßAQM4FIÁ
                                                                                  5Hî#}sZE«398ó7UòsÇ..Y##ØÔ~W4àÒZ$õæ¥v&£õÀÍ:Pö¨£}Iò½OÿÙ
------------cH2KM7Ij5Ef1ae0cH2ae0KM7ei4Ef1
Content-Disposition: form-data; name="Upload"

Submit Query
------------cH2KM7Ij5Ef1ae0cH2ae0KM7ei4Ef1

Source code...

Code:

main() {

//char *querystring;
int querylen;
char *line;
FILE *fp;
FILE *fp2;

if ( getenv("CONTENT_LENGTH") != NULL ) {
        querylen=atoi(getenv("CONTENT_LENGTH"));
        line=malloc(querylen*512);
        //querystring=malloc(querylen*512);

} else {
        querylen=10240;
        line=malloc(querylen*512);
        //querystring=malloc(querylen*512);
}

char querystring[querylen];

fread ( querystring, querylen, 1, stdin );
printf("Content-type: text/plain\n\n");
fp=fopen("/opt/moneylikes/tmp/file", "wb+");
fwrite(querystring, querylen, 1, fp);

exit(0);
}

I want to say thanks in advanced to anyone who can help me fill in the missing info..
I am pretty sure it is how i handle the headder info with the CGI.. i am just not sure what exactly it is i am doing wrong..

sorry.. Not sure i stated clearly what i am doing...... files are uploaded via a interface using flex.. flex sends the selected picture or video file to the url noted in the code...

ok.. i tried that ...
my file is much smaller...

i still think it has to do with the encoding or something..