CGI problems with query_string

JBE · - Joined: 05 Apr 2005 Posts: 1

Hi All

I have the following C++ CGI program (compiled with Borland Builder 6 and shown at the end of the message). The problem is that the query_string don't get transfer correctly to the program.

When the program is called with:
http://localhost/ctoolwww.exe?jb
I get jb as a parameter (argc=1). However when the call is
http://localhost/ctoolwww.exe?jb=1
I don't get any parameter (argc=0). What am I doing wrong???

Any help with be greatly appriciated Jørgen

Program listning:

int main(int argc, char *argv[],char *env[]) {

puts("Content-type: text/html\n");
puts("<html><head><title>C-TOOL v6 </title></head>");
puts("<body><form action=\"http://localhost/ctoolwww.exe\" method=get>");
puts("<H1> Generelle bedrifts data </H1><br />");
puts("JB nummer <select name=\"jb\">");
puts("<p><input type=\"submit\" value=\"næste>\">");
for (int i=0;i<10;i++)
puts(argv[i]);
char* qs = getenv("QUERY_STRING");
if (qs)
puts(qs);
else
puts("NULL ");
puts("</body></html>");
return 0;
}

aprelium · - Joined: 22 Mar 2002 Posts: 6800

JBE,

The first URL is called an ISINDEX URL and its query string is passed in the QUERY_STRING environment variable and as an argument. It is a special case for query strings that do not contain the characters = or &.

It seems that the small test program doesn't work properly because you are asking it to display argv[i] for i ranging from 0 to 10. If the arguments count is not 10, this will lead to pointer problems and may crash the program or display non-sense.

Please replace 10 in the program with argc. We have tested it with this modification and it worked fine.

If the problem persists on your side, please send to support@aprelium.com your source code and your abyss.conf files.
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