static int authenticate_to_floppyd(char fullauth, int sock, char *display,
int protoversion)
{
off_t filelen=0;
Byte buf[16];
const char *command[] = { "xauth", "xauth", "extract", "-", 0, 0 };
char *xcookie = NULL;
Dword errcode;
int bytesRead;
if (fullauth) {
command[4] = display;
filelen=strlen(display);
filelen += 100;
xcookie = (char *) safe_malloc(filelen+4);
filelen = safePopenOut(command, xcookie+4, filelen);
if(filelen < 1)
return AUTH_AUTHFAILED;
}
dword2byte(4,buf);
dword2byte(protoversion,buf+4);
write(sock, buf, 8);
bytesRead = read_dword(sock);
if (bytesRead != 4 && bytesRead != 12) {
return AUTH_WRONGVERSION;
}
errcode = read_dword(sock);
if (errcode != AUTH_SUCCESS) {
return errcode;
}
if(bytesRead == 8) {
protoversion = read_dword(sock);
read_dword(sock);
}
fprintf(stderr, "Protocol Version=%d\n", protoversion);
if (fullauth) {
dword2byte(filelen, (Byte *) xcookie);
write(sock, xcookie, filelen+4);
if (read_dword(sock) != 4) {
return AUTH_PACKETOVERSIZE;
}
errcode = read_dword(sock);
}
return errcode;
}
const char *expand(const char *input, char *ans)
{
int last;
char buf[256];
char *command[] = { "/bin/sh", "sh", "-c", 0, 0 };
ans[EXPAND_BUF-1]='\0';
if (input == NULL)
return(NULL);
if (*input == '\0')
return("");
/* any thing to expand? */
if (!strpbrk(input, "$*(){}[]\\?`~")) {
strncpy(ans, input, EXPAND_BUF-1);
return(ans);
}
/* popen an echo */
#ifdef HAVE_SNPRINTF
snprintf(buf, 255, "echo %s", input);
#else
sprintf(buf, "echo %s", input);
#endif
command[3]=buf;
last=safePopenOut(command, ans, EXPAND_BUF-1);
if(last<0) {
perror("Pipe read error");
exit(1);
}
if(last)
ans[last-1] = '\0';
else
strncpy(ans, input, EXPAND_BUF-1);
return ans;
}