decode the querystring

[Unregistered]

Can anyone help me with this?
I can't get the correct result, and don't know what is wrong.

After the program runs, the myName variable is supposed to contain the value I pass to the cgi program

#include <stdio.h>
#include <stdlib.h>

// Helper macro to convert two-character hex strings to character value
#define ToHex(Y) (Y>='0'&&Y<='9'?Y-'0':Y-'A'+10)

char InputData[4096];

void getAllParams() {
// Determing if it is a POST or GET method
if( getenv( "REQUEST_METHOD" ) == 0 ) {
printf("No REQUEST_METHOD, must be running in DOS mode");
return;
} else if (strcmp( getenv("REQUEST_METHOD"), "POST") == 0) {
// If POST
char *endptr; // quite useless, but required
char *len1 = getenv("CONTENT_LENGTH");
int contentlength = strtol(len1, &endptr, 10);
fread(InputData , contentlength, 1, stdin);
} else {
// If GET
strcpy(InputData, getenv("QUERY_STRING"));
}
}

void getParam(const char *Name, char *Dest, char *Default) {
char *pArg = strstr(InputData, Name);

if (pArg) {
pArg += strlen(Name);

if (*pArg == '=') { // Make sure there is an '=' where we expect it
pArg++;

while (*pArg && *pArg != '&') {
if (*pArg == '%') { // Convert it to a single ASCII character and store at our destination
Dest += (char)ToHex(pArg[1]) * 16 + ToHex(pArg[2]);
pArg += 3;
} else if( *pArg=='+' ) { // If it's a '+', store a space at our destination
Dest += ' ';
pArg++;
} else {
Dest += *pArg++; // Otherwise, just store the character at our destination
}
}

return;
}

}
Dest = Default; // If param not found, then use default parameter
return;
}

int main() {

char *myName = "";

printf("Content-Type:text/html \n\n");
getAllParams();
getParam("Name", myName, "No Name");
printf("QueryString: %s", InputData);
printf("<br>");
printf("Name: %s", myName);

return 0;
}

[swoopy]

Try this.

void getParam(const char *Name, char *Dest, char *Default) { 
char *pArg = strstr(InputData, Name); 

if (pArg) { 
pArg += strlen(Name); 

if (*pArg == '=') { // Make sure there is an '=' where we expect it 
pArg++; 

while (*pArg && *pArg != '&') { 
if (*pArg == '%') { // Convert it to a single ASCII character and store at our destination 
*Dest++ = (char)ToHex(pArg[1]) * 16 + ToHex(pArg[2]); 
pArg += 3; 
} else if( *pArg=='+' ) { // If it's a '+', store a space at our destination 
*Dest++ = ' '; 
pArg++; 
} else { 
*Dest++ = *pArg++; // Otherwise, just store the character at our destination 
} 
} 

*Dest++ = '\0';
return; 
} 

} 
Dest = Default; // If param not found, then use default parameter 
return; 
}

Also in main()

int main() { 

>char *myName = ""; 
//Change this to:
char myName[80] = "";