void shuffle(string_array *array, int n)
{
srand(time(NULL));
if (n > 1)
{
int i;
for (i = 0; i < n - 1; i++)
{
int j = i + rand() / (RAND_MAX / (n - i) + 1);
string_swap(array,i,j);
}
}
}
void showhelp(char *source, char *chan, char *args)
{
struct buffer_block *dyn = NULL;
char buffer[512], word[80], *ptr;
int i, l, index = 0, found = 0, file, linecount = 0;
if (CurrentSendQ > HIGHSENDQTHRESHOLD)
{
notice(source, "Cannot process your request at this time. Try again later.");
return;
}
GetWord(0, args, word);
if (!*word)
strcpy(word, "help");
listinit();
/* find the command index */
for (i = 0; i <= N; i++)
{
if (!strcasecmp(word, commands[i].name))
{
found = 1;
index = i;
break;
}
else if (!strncasecmp(word, commands[i].name, strlen(word)))
{
found++;
index = i;
}
}
if (found > 1)
{
sprintf(buffer, "%s is ambiguous", word);
notice(source, buffer);
return;
}
else if (found == 0)
{
if (!strcasecmp(word, "INFO"))
{
sprintf(buffer, "%s/INFO", HELP_DIR);
}
else if (!strcasecmp(word, "FORM"))
{
sprintf(buffer, "%s/FORM", HELP_DIR);
}
else
{
sprintf(buffer, "No help on %s. Please use "
"showcommands to get a list of commands "
"available to you", word);
notice(source, buffer);
return;
}
}
else
{
sprintf(buffer, "%s/%s", HELP_DIR, commands[index].file);
}
alarm(2);
file = open(buffer, O_RDONLY);
alarm(0);
if (file < 0)
{
if (found)
sprintf(buffer, "The help file for command %s "
"is not available", commands[index].name);
else
sprintf(buffer, "This help file is not available");
notice(source, buffer);
return;
}
if (found)
{
sprintf(buffer,
" HELP on %-20s Minimum access: %4d ",
commands[index].name, commands[index].Access);
notice(source, buffer);
}
alarm(3);
while ((l = read(file, buffer, 511)) > 0)
{
copy_to_buffer(&dyn, buffer, l);
}
alarm(0);
close(file);
while (dyn != NULL)
{
copy_from_buffer(&dyn, buffer, '\n', 199);
if ((ptr = strchr(buffer, '\n')) != NULL)
*ptr = '\0';
else
continue;
if (*buffer == '\0')
strcpy(buffer, " ");
string_swap(buffer, 512, "$NICK", mynick);
string_swap(buffer, 512, "$SERVER", SERVERNAME);
notice(source, buffer);
linecount++;
}
if (linecount > 0)
CheckFloodFlood(source, linecount);
}