Hi:
I am using apache/cgi/c++ to do a school project on a unix machine.
i wrote a c++ program to get user input from the forms and prints it out.
i compiled the program named it hi.cgi and put its path in the action
field of my html form.
But when I enter the form, instead of running or processing the cgi
program, the browser asks me if i wanna download hi.cgi. I have
already set the permission string of hi.cgi to (chmod 755). I am
pulling my hair trying to figure out what is wrong. Any help would be
appreciated.
Below is my cpp program code:
#include <iostream>
using namespace std;
void EncodeURL(char * buff);
int main(){
cout << "content-type: text/html\n\n" << endl;
char * query_string = getenv("QUERY_STRING");
char name[100];
int n = 0;
for(int i=0; query_string[i] != '\0'; i++){
name[i] = query_string[i];
}
//cout << "Content-type: text/html/\n\n" << endl;
cout << "<HTML><HEAD><TITLE>Your name</TITLE></HEAD>\n";
cout << "<BODY>\n";
EncodeURL(name);
for(int i=0; name[i] != '\0'; i++){
cout << name[i];
}
cout << "</BODY></HTML>" << endl;
}
void EncodeURL(char * buff){
int x, y;
char * buff2;
char * hexstr;
for(x=0, y=0; x < strlen(buff); x++, y++){
switch (buff[x]){
/* Convert all + chars to space chars */
case '+':
buff2[y] = ' ';
break;
/* Convert all %xy hex codes into ASCII chars */
case '%':
/* Copy the two bytes following the % */
strncpy(hexstr, &buff[x + 1], 2);
/* Skip over the hex */
x = x + 2;
/* Convert the hex to ASCII */
/* Prevent user from altering URL delimiter sequence */
if( ((strcmp(hexstr,"26")==0)) || ((strcmp(hexstr,"3D")==0)) )
{
buff2[y]='%';
y++;
strcpy(buff2,hexstr);
y=y+2;
break;
}
buff2[y] = (char)strtol(hexstr, NULL, 16);
break;
/* Make an exact copy of anything else */
default:
buff2[y] = buff[x];
break;
}
}
strcpy(buff, buff2);
}
And the link to the form is here: http://pdc-lab.poly.edu/~rkuang01/index.html
If you type something into the form and press the enter button, the
browser will ask if you wanna save the hi.cgi instead of running it.
Once again, I have set the permission string to 755. Thanks in
advance for your help.
Best,
Ben
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