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3 | * |
3 | * |
4 | * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
4 | * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
5 | * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team |
5 | * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team |
6 | * Copyright (©) 1992,2007 Frank Tore Johansen |
6 | * Copyright (©) 1992,2007 Frank Tore Johansen |
7 | * |
7 | * |
8 | * Deliantra is free software: you can redistribute it and/or modify |
8 | * Deliantra is free software: you can redistribute it and/or modify it under |
9 | * it under the terms of the GNU General Public License as published by |
9 | * the terms of the Affero GNU General Public License as published by the |
10 | * the Free Software Foundation, either version 3 of the License, or |
10 | * Free Software Foundation, either version 3 of the License, or (at your |
11 | * (at your option) any later version. |
11 | * option) any later version. |
12 | * |
12 | * |
13 | * This program is distributed in the hope that it will be useful, |
13 | * This program is distributed in the hope that it will be useful, |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | * GNU General Public License for more details. |
16 | * GNU General Public License for more details. |
17 | * |
17 | * |
18 | * You should have received a copy of the GNU General Public License |
18 | * You should have received a copy of the Affero GNU General Public License |
19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
19 | * and the GNU General Public License along with this program. If not, see |
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20 | * <http://www.gnu.org/licenses/>. |
20 | * |
21 | * |
21 | * The authors can be reached via e-mail to <support@deliantra.net> |
22 | * The authors can be reached via e-mail to <support@deliantra.net> |
22 | */ |
23 | */ |
23 | |
24 | |
24 | /* |
25 | /* |
25 | * General convenience functions for crossfire. |
26 | * General convenience functions for deliantra. |
26 | */ |
27 | */ |
27 | |
28 | |
28 | #include <cstdlib> |
29 | #include <cstdlib> |
29 | #include <sys/types.h> |
30 | #include <sys/types.h> |
30 | #include <unistd.h> |
31 | #include <unistd.h> |
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409 | } |
410 | } |
410 | } |
411 | } |
411 | result[resultlen] = '\0'; |
412 | result[resultlen] = '\0'; |
412 | } |
413 | } |
413 | |
414 | |
414 | /** |
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415 | * Taking a string as an argument, mutate it into a string that looks like a list. |
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416 | * a 'list' for the purposes here, is a string of items, seperated by commas, except |
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417 | * for the last entry, which has an 'and' before it, and a full stop (period) after it. |
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418 | * This function will also strip all trailing non alphanumeric characters. |
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419 | * It does not insert an oxford comma. |
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420 | */ |
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421 | void |
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422 | make_list_like (char *input) |
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423 | { |
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424 | char *p, tmp[MAX_BUF]; |
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425 | int i; |
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426 | |
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427 | if (!input || strlen (input) > MAX_BUF - 5) |
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428 | return; |
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429 | /* bad stuff would happen if we continued here, the -5 is to make space for ' and ' */ |
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430 | |
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431 | strncpy (tmp, input, MAX_BUF - 5); |
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432 | /*trim all trailing commas, spaces etc. */ |
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433 | for (i = strlen (tmp); !isalnum (tmp[i]) && i >= 0; i--) |
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434 | tmp[i] = '\0'; |
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435 | |
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436 | strcat (tmp, "."); |
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437 | |
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438 | p = strrchr (tmp, ','); |
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439 | if (p) |
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440 | { |
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441 | *p = '\0'; |
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442 | strcpy (input, tmp); |
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443 | p++; |
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444 | strcat (input, " and"); |
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445 | strcat (input, p); |
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446 | } |
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447 | else |
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448 | strcpy (input, tmp); |
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449 | |
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450 | return; |
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451 | } |
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452 | |
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453 | /******************************************************************************/ |
415 | /******************************************************************************/ |
454 | |
416 | |
455 | /* Checks a player-provided string which will become the msg property of |
417 | /* Checks a player-provided string which will become the msg property of |
456 | * an object for dangerous input. |
418 | * an object for dangerous input. |
457 | */ |
419 | */ |
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459 | msg_is_safe (const char *msg) |
421 | msg_is_safe (const char *msg) |
460 | { |
422 | { |
461 | bool safe = true; |
423 | bool safe = true; |
462 | |
424 | |
463 | /* Trying to cheat by getting data into the object */ |
425 | /* Trying to cheat by getting data into the object */ |
464 | if (!strncmp (msg, "endmsg", strlen ("endmsg")) || strstr (msg, "\nendmsg")) |
426 | if (!strncmp (msg, "endmsg", sizeof ("endmsg") - 1) |
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427 | || strstr (msg, "\nendmsg")) |
465 | safe = false; |
428 | safe = false; |
466 | |
429 | |
467 | /* Trying to make the object talk, and potentially access arbitrary code */ |
430 | /* Trying to make the object talk, and potentially access arbitrary code */ |
468 | if (object::msg_has_dialogue (msg)) |
431 | if (object::msg_has_dialogue (msg)) |
469 | safe = false; |
432 | safe = false; |
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610 | memcpy (dst, src, ++len); |
573 | memcpy (dst, src, ++len); |
611 | |
574 | |
612 | return len; |
575 | return len; |
613 | } |
576 | } |
614 | |
577 | |
615 | const char * |
578 | char * |
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579 | vformat (const char *format, va_list ap) |
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580 | { |
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581 | static dynbuf_text buf; buf.clear (); |
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582 | buf.vprintf (format, ap); |
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583 | return buf; |
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584 | } |
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585 | |
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586 | char * |
616 | format (const char *format, ...) |
587 | format (const char *format, ...) |
617 | { |
588 | { |
618 | static dynbuf_text buf; |
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619 | |
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620 | buf.clear (); |
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621 | |
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622 | va_list ap; |
589 | va_list ap; |
623 | va_start (ap, format); |
590 | va_start (ap, format); |
624 | buf.vprintf (format, ap); |
591 | char *buf = vformat (format, ap); |
625 | va_end (ap); |
592 | va_end (ap); |
626 | |
593 | |
627 | return buf; |
594 | return buf; |
628 | } |
595 | } |
629 | |
596 | |