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/*
* Utility function to convert a textual representation of an X11
* auth hex cookie into binary auth data.
*/
#include "putty.h"
#include "ssh.h"
void *x11_dehexify(ptrlen hexpl, int *outlen)
{
int len, i;
unsigned char *ret;
len = hexpl.len / 2;
ret = snewn(len, unsigned char);
for (i = 0; i < len; i++) {
char bytestr[3];
unsigned val = 0;
bytestr[0] = ((const char *)hexpl.ptr)[2*i];
bytestr[1] = ((const char *)hexpl.ptr)[2*i+1];
bytestr[2] = '\0';
sscanf(bytestr, "%x", &val);
ret[i] = val;
}
*outlen = len;
return ret;
}
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