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Comparing deliantra/server/common/porting.C (file contents):
Revision 1.6 by root, Tue Sep 12 23:22:32 2006 UTC vs.
Revision 1.20 by root, Tue May 6 16:55:25 2008 UTC

1
2/* 1/*
3 * static char *rcsid_porting_c = 2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
4 * "$Id: porting.C,v 1.6 2006/09/12 23:22:32 root Exp $"; 3 *
4 * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 *
8 * Deliantra is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 *
21 * The authors can be reached via e-mail to <support@deliantra.net>
5 */ 22 */
6
7/*
8 CrossFire, A Multiplayer game for X-windows
9
10 Copyright (C) 2002 Mark Wedel & Crossfire Development Team
11 Copyright (C) 1992 Frank Tore Johansen
12
13 This program is free software; you can redistribute it and/or modify
14 it under the terms of the GNU General Public License as published by
15 the Free Software Foundation; either version 2 of the License, or
16 (at your option) any later version.
17
18 This program is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 GNU General Public License for more details.
22
23 You should have received a copy of the GNU General Public License
24 along with this program; if not, write to the Free Software
25 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26
27 The authors can be reached via e-mail at crossfire-devel@real-time.com
28*/
29 23
30/* This file contains various functions that are not really unique for 24/* This file contains various functions that are not really unique for
31 * crossfire, but rather provides what should be standard functions 25 * crossfire, but rather provides what should be standard functions
32 * for systems that do not have them. In this way, most of the 26 * for systems that do not have them. In this way, most of the
33 * nasty system dependent stuff is contained here, with the program 27 * nasty system dependent stuff is contained here, with the program
34 * calling these functions. 28 * calling these functions.
35 */ 29 */
36 30
37 31
38#ifdef WIN32 /* ---win32 exclude/include headers */
39# include "process.h"
40# define pid_t int /* we include it non global, because there is a redefinition in python.h */
41#else
42# include <ctype.h>
43# include <sys/stat.h>
44# include <sys/wait.h>
45
46# include <sys/param.h>
47# include <stdio.h>
48
49/* Need to pull in the HAVE_... values somehow */ 32/* Need to pull in the HAVE_... values somehow */
50 33
51/* win32 reminder: always put this in a ifndef win32 block */
52# include <autoconf.h> 34#include <autoconf.h>
53#endif
54 35
36#include <cstdio>
37#include <cstdlib>
38#include <cstdarg>
55 39
56#ifdef HAVE_STDLIB_H 40#include <cctype>
57# include <stdlib.h>
58#endif
59 41
60#ifdef HAVE_UNISTD_H 42#include <sys/stat.h>
61# include <unistd.h> 43#include <sys/wait.h>
62#endif
63 44
45#include <sys/param.h>
46
64#include <stdarg.h> 47#include <unistd.h>
65 48
66/* Has to be after above includes so we don't redefine some values */ 49/* Has to be after above includes so we don't redefine some values */
67#include "global.h" 50#include "global.h"
68
69static unsigned int curtmp = 0;
70
71/*****************************************************************************
72 * File related functions
73 ****************************************************************************/
74
75/*
76 * A replacement for the tempnam() function since it's not defined
77 * at some unix variants.
78 */
79
80char *
81tempnam_local (const char *dir, const char *pfx)
82{
83 char *name;
84 pid_t pid = getpid ();
85
86/* HURD does not have a hard limit, but we do */
87#ifndef MAXPATHLEN
88# define MAXPATHLEN 4096
89#endif
90
91 if (!(name = (char *) malloc (MAXPATHLEN)))
92 return (NULL);
93
94 if (!pfx)
95 pfx = "cftmp.";
96
97 /* This is a pretty simple method - put the pid as a hex digit and
98 * just keep incrementing the last digit. Check to see if the file
99 * already exists - if so, we'll just keep looking - eventually we should
100 * find one that is free.
101 */
102 if (dir != NULL)
103 {
104 do
105 {
106#ifdef HAVE_SNPRINTF
107 (void) snprintf (name, MAXPATHLEN, "%s/%s%hx.%d", dir, pfx, pid, curtmp);
108#else
109 (void) sprintf (name, "%s/%s%hx%d", dir, pfx, pid, curtmp);
110#endif
111 curtmp++;
112 }
113 while (access (name, F_OK) != -1);
114 return (name);
115 }
116 return (NULL);
117}
118
119
120 51
121/* This function removes everything in the directory. */ 52/* This function removes everything in the directory. */
122void 53void
123remove_directory (const char *path) 54remove_directory (const char *path)
124{ 55{
… …
162 { 93 {
163 LOG (llevError, "Unable to remove directory %s\n", path); 94 LOG (llevError, "Unable to remove directory %s\n", path);
164 } 95 }
165} 96}
166 97
167#if defined(sgi)
168
169# include <stdio.h>
170# include <stdlib.h>
171# include <string.h>
172
173# define popen fixed_popen
174
175FILE *
176popen_local (const char *command, const char *type)
177{
178 int fd[2];
179 int pd;
180 FILE *ret;
181
182 if (!strcmp (type, "r"))
183 pd = STDOUT_FILENO;
184 else if (!strcmp (type, "w"))
185 pd = STDIN_FILENO;
186 else
187 return NULL;
188
189 if (pipe (fd) != -1)
190 {
191 switch (fork ())
192 {
193 case -1:
194 close (fd[0]);
195 close (fd[1]);
196 break;
197 case 0:
198 close (fd[0]);
199 if ((fd[1] == pd) || (dup2 (fd[1], pd) == pd))
200 {
201 if (fd[1] != pd)
202 {
203 close (fd[1]);
204 }
205 execl ("/bin/sh", "sh", "-c", command, NULL);
206 close (pd);
207 }
208 _exit (1);
209 break;
210 default:
211 close (fd[1]);
212 if (ret = fdopen (fd[0], type))
213 {
214 return ret;
215 }
216 close (fd[0]);
217 break;
218 }
219 }
220 return NULL;
221}
222
223#endif /* defined(sgi) */
224
225
226/*****************************************************************************
227 * String related function
228 ****************************************************************************/
229
230/*
231 * A replacement of strdup(), since it's not defined at some
232 * unix variants.
233 */
234char *
235strdup_local (const char *str)
236{
237 char *c = (char *) malloc (sizeof (char) * (strlen (str) + 1));
238
239 strcpy (c, str);
240 return c;
241}
242
243
244#define DIGIT(x) (isdigit(x) ? (x) - '0' : \ 98#define DIGIT(x) (isdigit(x) ? (x) - '0' : \
245islower (x) ? (x) + 10 - 'a' : (x) + 10 - 'A') 99islower (x) ? (x) + 10 - 'a' : (x) + 10 - 'A')
246#define MBASE ('z' - 'a' + 1 + 10) 100#define MBASE ('z' - 'a' + 1 + 10)
247
248/* This seems to be lacking on some system */
249#if !defined(HAVE_STRNCASECMP)
250int
251strncasecmp (const char *s1, const char *s2, int n)
252{
253 register int c1, c2;
254
255 while (*s1 && *s2 && n)
256 {
257 c1 = tolower (*s1);
258 c2 = tolower (*s2);
259 if (c1 != c2)
260 return (c1 - c2);
261 s1++;
262 s2++;
263 n--;
264 }
265 if (!n)
266 return (0);
267 return (int) (*s1 - *s2);
268}
269#endif
270
271#if !defined(HAVE_STRCASECMP)
272int
273strcasecmp (const char *s1, const char *s2)
274{
275 register int c1, c2;
276
277 while (*s1 && *s2)
278 {
279 c1 = tolower (*s1);
280 c2 = tolower (*s2);
281 if (c1 != c2)
282 return (c1 - c2);
283 s1++;
284 s2++;
285 }
286 if (*s1 == '\0' && *s2 == '\0')
287 return 0;
288 return (int) (*s1 - *s2);
289}
290#endif
291 101
292char * 102char *
293strcasestr_local (const char *s, const char *find) 103strcasestr_local (const char *s, const char *find)
294{ 104{
295 char c, sc; 105 char c, sc;
… …
312 s--; 122 s--;
313 } 123 }
314 return (char *) s; 124 return (char *) s;
315} 125}
316 126
317#if !defined(HAVE_SNPRINTF)
318
319int
320snprintf (char *dest, int max, const char *format, ...)
321{
322 va_list var;
323 int ret;
324
325 va_start (var, format);
326 ret = vsprintf (dest, format, var);
327 va_end (var);
328 if (ret > max)
329 abort ();
330
331 return ret;
332}
333#endif
334
335
336/*
337 * Based on (n+1)^2 = n^2 + 2n + 1
338 * given that 1^2 = 1, then
339 * 2^2 = 1 + (2 + 1) = 1 + 3 = 4
340 * 3^2 = 4 + (4 + 1) = 4 + 5 = 1 + 3 + 5 = 9
341 * 4^2 = 9 + (6 + 1) = 9 + 7 = 1 + 3 + 5 + 7 = 16
342 * ...
343 * In other words, a square number can be express as the sum of the
344 * series n^2 = 1 + 3 + ... + (2n-1)
345 */
346int
347isqrt (int n)
348{
349 int result, sum, prev;
350
351 result = 0;
352 prev = sum = 1;
353 while (sum <= n)
354 {
355 prev += 2;
356 sum += prev;
357 ++result;
358 }
359 return result;
360}
361
362
363/* 127/*
364 * returns a char-pointer to a static array, in which a representation 128 * returns a char-pointer to a static array, in which a representation
365 * of the decimal number given will be stored. 129 * of the decimal number given will be stored.
366 */ 130 */
367
368char * 131char *
369ltostr10 (signed long n) 132ltostr10 (signed long n)
370{ 133{
371 static char buf[12]; /* maximum size is n=-2 billion, i.e. 11 characters+1 134 static char buf[12]; /* maximum size is n=-2 billion, i.e. 11 characters+1
372 character for the trailing nul character */ 135 character for the trailing nul character */
… …
388 * then it opens it and returns the file-pointer. 151 * then it opens it and returns the file-pointer.
389 */ 152 */
390FILE * 153FILE *
391open_and_uncompress (const char *name, int flag, int *compressed) 154open_and_uncompress (const char *name, int flag, int *compressed)
392{ 155{
393 size_t i;
394 FILE *fp;
395
396 *compressed = 0; 156 *compressed = 0;
397 return fopen (name, "r"); 157 return fopen (name, "r");
398} 158}
399 159
400/* 160/*
… …
417 char buf[MAX_BUF], *cp = buf; 177 char buf[MAX_BUF], *cp = buf;
418 struct stat statbuf; 178 struct stat statbuf;
419 179
420 if (!filename || !*filename) 180 if (!filename || !*filename)
421 return; 181 return;
182
422 strcpy (buf, filename); 183 assign (buf, filename);
423 184
424 while ((cp = strchr (cp + 1, (int) '/'))) 185 while ((cp = strchr (cp + 1, (int) '/')))
425 { 186 {
426 *cp = '\0'; 187 *cp = '\0';
427 if (stat (buf, &statbuf) || !S_ISDIR (statbuf.st_mode)) 188 if (stat (buf, &statbuf) || !S_ISDIR (statbuf.st_mode))

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