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kdlhangman: Fallback to thread names when fortune is missing 

When loading from the boot drivers tgz without a mounted boot
partition, fall back to thread names to find words.
This commit is contained in:
François Revol 2012-11-05 11:48:43 +01:00
parent 0a361580ad
commit 1a1e2020f9
1 changed files with 53 additions and 2 deletions
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53
src/add-ons/kernel/debugger/hangman/hangman.c
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@ -76,6 +76,7 @@ char bigbuffer[BIGBUFFSZ];
#define BIT_FROM_LETTER(l) (0x1 << (l - 'a'))
status_t init_words(char *from);
status_t init_words_from_threadnames(void);
void print_hangman(int fails);
void display_word(int current, uint32 tried_letters);
int play_hangman(void);
@ -169,6 +170,51 @@ init_words(char *from)
}
status_t
init_words_from_threadnames(void)
{
size_t sz, got;
int current, beg, end, i;
thread_info ti;
memset((void *)words, 0, sizeof(words));
srand((unsigned int)(system_time() & 0x0ffffffff));
for (current = 0; current < MAX_CACHED_WORDS; ) {
int offset;
char *p;
if (get_thread_info(rand() % 200, &ti) != B_OK)
continue;
sz = strnlen(ti.name, B_OS_NAME_LENGTH);
if (sz <= MIN_LETTERS)
continue;
offset = (rand() % (sz - MIN_LETTERS));
//dprintf("thread '%-.32s' + %d\n", ti.name, offset);
p = ti.name + offset;
got = sz - offset;
for (beg = 0; beg < got && isalpha(p[beg]); beg++);
for (; beg < got && !isalpha(p[beg]); beg++);
if (beg + 1 < got && isalpha(p[beg])) {
for (end = beg; end < got && isalpha(p[end]); end++);
if (end < got && !isalpha(p[end]) && beg + MIN_LETTERS < end) {
/* got one */
/* tolower */
for (i = beg; i < end; i++)
p[i] = tolower(p[i]);
strncpy(&(words[current][0]), &(p[beg]), end - beg);
} else
continue;
} else
continue;
current++;
}
/*
for (current = 0; current < MAX_CACHED_WORDS; current++)
dprintf("%s\n", words[current]);
*/
return B_OK;
}
void
print_hangman(int fails)
{
@ -456,8 +502,13 @@ std_ops(int32 op, ...)
if (err < B_OK) {
dprintf("hangman: error reading fortune file: %s\n",
strerror(err));
err = init_words_from_threadnames();
if (err < B_OK) {
dprintf("hangman: error getting thread names: %s\n",
strerror(err));
return B_ERROR;
}
}
add_debugger_command("kdlhangman", kdlhangman, KCMD_HELP);
return B_OK;
case B_MODULE_UNINIT:
@ -497,7 +548,7 @@ kdl_trip(void)
fd = open("/dev/misc/hangman", O_WRONLY);
if (fd < B_OK) {
puts("hey, you're pissing me off, no /dev/"DEV_ENTRY" !!!");
system("/bin/alert --stop 'It would work better with the hangman driver enabled...\nyou really deserves a forced reboot :P'");
system("/bin/alert --stop 'It would work better with the hangman driver enabled...\nyou really deserve a forced reboot :P'");
return;
}
write(fd, "hangme!", 7);