| 1 | /* |
1 | /* |
| 2 | CrossFire, A Multiplayer game for X-windows |
2 | * This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game. |
| 3 | |
3 | * |
| 4 | Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team |
4 | * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team |
| 5 | Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
5 | * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team |
| 6 | Copyright (C) 1992 Frank Tore Johansen |
6 | * Copyright (©) 1992,2007 Frank Tore Johansen |
| 7 | |
7 | * |
| 8 | This program is free software; you can redistribute it and/or modify |
8 | * Crossfire TRT is free software; you can redistribute it and/or modify it |
| 9 | it under the terms of the GNU General Public License as published by |
9 | * under the terms of the GNU General Public License as published by the Free |
| 10 | the Free Software Foundation; either version 2 of the License, or |
10 | * Software Foundation; either version 2 of the License, or (at your option) |
| 11 | (at your option) any later version. |
11 | * 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, but |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 16 | GNU General Public License for more details. |
16 | * 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 GNU General Public License along |
| 19 | along with this program; if not, write to the Free Software |
19 | * with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51 |
| 20 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
20 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 21 | |
21 | * |
| 22 | The authors can be reached via e-mail at <crossfire@schmorp.de> |
22 | * The authors can be reached via e-mail to <crossfire@schmorp.de> |
| 23 | */ |
23 | */ |
| 24 | |
24 | |
| 25 | /* This file contains various functions that are not really unique for |
25 | /* This file contains various functions that are not really unique for |
| 26 | * crossfire, but rather provides what should be standard functions |
26 | * crossfire, but rather provides what should be standard functions |
| 27 | * for systems that do not have them. In this way, most of the |
27 | * for systems that do not have them. In this way, most of the |
| 28 | * nasty system dependent stuff is contained here, with the program |
28 | * nasty system dependent stuff is contained here, with the program |
| … | |
… | |
| 47 | |
47 | |
| 48 | #include <unistd.h> |
48 | #include <unistd.h> |
| 49 | |
49 | |
| 50 | /* Has to be after above includes so we don't redefine some values */ |
50 | /* Has to be after above includes so we don't redefine some values */ |
| 51 | #include "global.h" |
51 | #include "global.h" |
| 52 | |
|
|
| 53 | static unsigned int curtmp = 0; |
|
|
| 54 | |
52 | |
| 55 | /* This function removes everything in the directory. */ |
53 | /* This function removes everything in the directory. */ |
| 56 | void |
54 | void |
| 57 | remove_directory (const char *path) |
55 | remove_directory (const char *path) |
| 58 | { |
56 | { |
| … | |
… | |
| 126 | } |
124 | } |
| 127 | return (char *) s; |
125 | return (char *) s; |
| 128 | } |
126 | } |
| 129 | |
127 | |
| 130 | /* |
128 | /* |
| 131 | * Based on (n+1)^2 = n^2 + 2n + 1 |
|
|
| 132 | * given that 1^2 = 1, then |
|
|
| 133 | * 2^2 = 1 + (2 + 1) = 1 + 3 = 4 |
|
|
| 134 | * 3^2 = 4 + (4 + 1) = 4 + 5 = 1 + 3 + 5 = 9 |
|
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| 135 | * 4^2 = 9 + (6 + 1) = 9 + 7 = 1 + 3 + 5 + 7 = 16 |
|
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| 136 | * ... |
|
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| 137 | * In other words, a square number can be express as the sum of the |
|
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| 138 | * series n^2 = 1 + 3 + ... + (2n-1) |
|
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| 139 | */ |
|
|
| 140 | int |
|
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| 141 | isqrt (int n) |
|
|
| 142 | { |
|
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| 143 | int result, sum, prev; |
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| 144 | |
|
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| 145 | result = 0; |
|
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| 146 | prev = sum = 1; |
|
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| 147 | while (sum <= n) |
|
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| 148 | { |
|
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| 149 | prev += 2; |
|
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| 150 | sum += prev; |
|
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| 151 | ++result; |
|
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| 152 | } |
|
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| 153 | return result; |
|
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| 154 | } |
|
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| 155 | |
|
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| 156 | /* |
|
|
| 157 | * returns a char-pointer to a static array, in which a representation |
129 | * returns a char-pointer to a static array, in which a representation |
| 158 | * of the decimal number given will be stored. |
130 | * of the decimal number given will be stored. |
| 159 | */ |
131 | */ |
| 160 | char * |
132 | char * |
| 161 | ltostr10 (signed long n) |
133 | ltostr10 (signed long n) |
| … | |
… | |
| 206 | char buf[MAX_BUF], *cp = buf; |
178 | char buf[MAX_BUF], *cp = buf; |
| 207 | struct stat statbuf; |
179 | struct stat statbuf; |
| 208 | |
180 | |
| 209 | if (!filename || !*filename) |
181 | if (!filename || !*filename) |
| 210 | return; |
182 | return; |
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|
183 | |
| 211 | strcpy (buf, filename); |
184 | assign (buf, filename); |
| 212 | |
185 | |
| 213 | while ((cp = strchr (cp + 1, (int) '/'))) |
186 | while ((cp = strchr (cp + 1, (int) '/'))) |
| 214 | { |
187 | { |
| 215 | *cp = '\0'; |
188 | *cp = '\0'; |
| 216 | if (stat (buf, &statbuf) || !S_ISDIR (statbuf.st_mode)) |
189 | if (stat (buf, &statbuf) || !S_ISDIR (statbuf.st_mode)) |
