1 | /* |
1 | /* |
2 | * static char *rcsid_porting_c = |
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3 | * "$Id: porting.C,v 1.4 2006/09/07 09:28:44 root Exp $"; |
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4 | */ |
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5 | |
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6 | /* |
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7 | CrossFire, A Multiplayer game for X-windows |
2 | * CrossFire, A Multiplayer game for X-windows |
8 | |
3 | * |
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4 | * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team |
9 | Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
5 | * Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
10 | Copyright (C) 1992 Frank Tore Johansen |
6 | * Copyright (C) 1992 Frank Tore Johansen |
11 | |
7 | * |
12 | This program is free software; you can redistribute it and/or modify |
8 | * This program is free software; you can redistribute it and/or modify |
13 | it under the terms of the GNU General Public License as published by |
9 | * it under the terms of the GNU General Public License as published by |
14 | the Free Software Foundation; either version 2 of the License, or |
10 | * the Free Software Foundation; either version 2 of the License, or |
15 | (at your option) any later version. |
11 | * (at your option) any later version. |
16 | |
12 | * |
17 | 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, |
18 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
20 | GNU General Public License for more details. |
16 | * GNU General Public License for more details. |
21 | |
17 | * |
22 | 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 |
23 | along with this program; if not, write to the Free Software |
19 | * along with this program; if not, write to the Free Software |
24 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
25 | |
21 | * |
26 | The authors can be reached via e-mail at crossfire-devel@real-time.com |
22 | * The authors can be reached via e-mail at <crossfire@schmorp.de> |
27 | */ |
23 | */ |
28 | |
24 | |
29 | /* This file contains various functions that are not really unique for |
25 | /* This file contains various functions that are not really unique for |
30 | * crossfire, but rather provides what should be standard functions |
26 | * crossfire, but rather provides what should be standard functions |
31 | * 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 |
32 | * nasty system dependent stuff is contained here, with the program |
28 | * nasty system dependent stuff is contained here, with the program |
33 | * calling these functions. |
29 | * calling these functions. |
34 | */ |
30 | */ |
35 | |
31 | |
36 | |
32 | |
37 | #ifdef WIN32 /* ---win32 exclude/include headers */ |
33 | /* Need to pull in the HAVE_... values somehow */ |
38 | #include "process.h" |
34 | |
39 | #define pid_t int /* we include it non global, because there is a redefinition in python.h */ |
35 | #include <autoconf.h> |
40 | #else |
36 | |
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37 | #include <cstdio> |
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38 | #include <cstdlib> |
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39 | #include <cstdarg> |
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40 | |
41 | #include <ctype.h> |
41 | #include <cctype> |
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42 | |
42 | #include <sys/stat.h> |
43 | #include <sys/stat.h> |
43 | #include <sys/wait.h> |
44 | #include <sys/wait.h> |
44 | |
45 | |
45 | #include <sys/param.h> |
46 | #include <sys/param.h> |
46 | #include <stdio.h> |
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47 | |
47 | |
48 | /* Need to pull in the HAVE_... values somehow */ |
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49 | /* win32 reminder: always put this in a ifndef win32 block */ |
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50 | #include <autoconf.h> |
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51 | #endif |
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52 | |
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53 | |
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54 | #ifdef HAVE_STDLIB_H |
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55 | #include <stdlib.h> |
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56 | #endif |
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57 | |
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58 | #ifdef HAVE_UNISTD_H |
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59 | #include <unistd.h> |
48 | #include <unistd.h> |
60 | #endif |
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61 | |
49 | |
62 | #include <stdarg.h> |
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63 | /* 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 */ |
64 | #include "global.h" |
51 | #include "global.h" |
65 | |
52 | |
66 | static unsigned int curtmp = 0; |
53 | static unsigned int curtmp = 0; |
67 | |
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68 | /***************************************************************************** |
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69 | * File related functions |
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70 | ****************************************************************************/ |
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71 | |
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72 | /* |
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73 | * A replacement for the tempnam() function since it's not defined |
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74 | * at some unix variants. |
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75 | */ |
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76 | |
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77 | char * |
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78 | tempnam_local (const char *dir, const char *pfx) |
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79 | { |
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80 | char *name; |
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81 | pid_t pid = getpid (); |
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82 | |
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83 | /* HURD does not have a hard limit, but we do */ |
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84 | #ifndef MAXPATHLEN |
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85 | #define MAXPATHLEN 4096 |
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86 | #endif |
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87 | |
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88 | if (!(name = (char *) malloc (MAXPATHLEN))) |
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89 | return (NULL); |
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90 | |
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91 | if (!pfx) |
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92 | pfx = "cftmp."; |
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93 | |
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94 | /* This is a pretty simple method - put the pid as a hex digit and |
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95 | * just keep incrementing the last digit. Check to see if the file |
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96 | * already exists - if so, we'll just keep looking - eventually we should |
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97 | * find one that is free. |
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98 | */ |
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99 | if (dir != NULL) |
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100 | { |
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101 | do |
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102 | { |
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103 | #ifdef HAVE_SNPRINTF |
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104 | (void) snprintf (name, MAXPATHLEN, "%s/%s%hx.%d", dir, pfx, pid, curtmp); |
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105 | #else |
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106 | (void) sprintf (name, "%s/%s%hx%d", dir, pfx, pid, curtmp); |
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107 | #endif |
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108 | curtmp++; |
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109 | } |
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110 | while (access (name, F_OK) != -1); |
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111 | return (name); |
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112 | } |
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113 | return (NULL); |
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114 | } |
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115 | |
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116 | |
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117 | |
54 | |
118 | /* This function removes everything in the directory. */ |
55 | /* This function removes everything in the directory. */ |
119 | void |
56 | void |
120 | remove_directory (const char *path) |
57 | remove_directory (const char *path) |
121 | { |
58 | { |
… | |
… | |
127 | if ((dirp = opendir (path)) != NULL) |
64 | if ((dirp = opendir (path)) != NULL) |
128 | { |
65 | { |
129 | struct dirent *de; |
66 | struct dirent *de; |
130 | |
67 | |
131 | for (de = readdir (dirp); de; de = readdir (dirp)) |
68 | for (de = readdir (dirp); de; de = readdir (dirp)) |
132 | { |
69 | { |
133 | /* Don't remove '.' or '..' In theory we should do a better |
70 | /* Don't remove '.' or '..' In theory we should do a better |
134 | * check for .., but the directories we are removing are fairly |
71 | * check for .., but the directories we are removing are fairly |
135 | * limited and should not have dot files in them. |
72 | * limited and should not have dot files in them. |
136 | */ |
73 | */ |
137 | if (de->d_name[0] == '.') |
74 | if (de->d_name[0] == '.') |
138 | continue; |
75 | continue; |
139 | |
76 | |
140 | /* Linux actually has a type field in the dirent structure, |
77 | /* Linux actually has a type field in the dirent structure, |
141 | * but that is not portable - stat should be portable |
78 | * but that is not portable - stat should be portable |
142 | */ |
79 | */ |
143 | status = stat (de->d_name, &statbuf); |
80 | status = stat (de->d_name, &statbuf); |
144 | if ((status != -1) && (S_ISDIR (statbuf.st_mode))) |
81 | if ((status != -1) && (S_ISDIR (statbuf.st_mode))) |
145 | { |
82 | { |
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83 | sprintf (buf, "%s/%s", path, de->d_name); |
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84 | remove_directory (buf); |
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85 | continue; |
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86 | } |
146 | sprintf (buf, "%s/%s", path, de->d_name); |
87 | sprintf (buf, "%s/%s", path, de->d_name); |
147 | remove_directory (buf); |
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148 | continue; |
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149 | } |
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150 | sprintf (buf, "%s/%s", path, de->d_name); |
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151 | if (unlink (buf)) |
88 | if (unlink (buf)) |
152 | { |
89 | { |
153 | LOG (llevError, "Unable to remove directory %s\n", path); |
90 | LOG (llevError, "Unable to remove directory %s\n", path); |
154 | } |
91 | } |
155 | } |
92 | } |
156 | closedir (dirp); |
93 | closedir (dirp); |
157 | } |
94 | } |
158 | if (rmdir (path)) |
95 | if (rmdir (path)) |
159 | { |
96 | { |
160 | LOG (llevError, "Unable to remove directory %s\n", path); |
97 | LOG (llevError, "Unable to remove directory %s\n", path); |
161 | } |
98 | } |
162 | } |
99 | } |
163 | |
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164 | #if defined(sgi) |
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165 | |
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166 | #include <stdio.h> |
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167 | #include <stdlib.h> |
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168 | #include <string.h> |
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169 | |
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170 | #define popen fixed_popen |
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171 | |
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172 | FILE * |
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173 | popen_local (const char *command, const char *type) |
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174 | { |
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175 | int fd[2]; |
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176 | int pd; |
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177 | FILE *ret; |
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178 | if (!strcmp (type, "r")) |
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179 | { |
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180 | pd = STDOUT_FILENO; |
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181 | } |
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182 | else if (!strcmp (type, "w")) |
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183 | { |
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184 | pd = STDIN_FILENO; |
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185 | } |
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186 | else |
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187 | { |
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188 | return NULL; |
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189 | } |
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190 | if (pipe (fd) != -1) |
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191 | { |
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192 | switch (fork ()) |
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193 | { |
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194 | case -1: |
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195 | close (fd[0]); |
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196 | close (fd[1]); |
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197 | break; |
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198 | case 0: |
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199 | close (fd[0]); |
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200 | if ((fd[1] == pd) || (dup2 (fd[1], pd) == pd)) |
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201 | { |
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202 | if (fd[1] != pd) |
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203 | { |
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204 | close (fd[1]); |
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205 | } |
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206 | execl ("/bin/sh", "sh", "-c", command, NULL); |
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207 | close (pd); |
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208 | } |
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209 | exit (1); |
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210 | break; |
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211 | default: |
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212 | close (fd[1]); |
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213 | if (ret = fdopen (fd[0], type)) |
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214 | { |
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215 | return ret; |
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216 | } |
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217 | close (fd[0]); |
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218 | break; |
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219 | } |
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220 | } |
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221 | return NULL; |
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222 | } |
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223 | |
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224 | #endif /* defined(sgi) */ |
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225 | |
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226 | |
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227 | /***************************************************************************** |
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228 | * String related function |
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229 | ****************************************************************************/ |
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230 | |
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231 | |
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232 | |
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233 | /* |
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234 | * A replacement of strdup(), since it's not defined at some |
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235 | * unix variants. |
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236 | */ |
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237 | char * |
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238 | strdup_local (const char *str) |
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239 | { |
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240 | char *c = (char *) malloc (sizeof (char) * (strlen (str) + 1)); |
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241 | strcpy (c, str); |
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242 | return c; |
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243 | } |
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244 | |
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245 | |
100 | |
246 | #define DIGIT(x) (isdigit(x) ? (x) - '0' : \ |
101 | #define DIGIT(x) (isdigit(x) ? (x) - '0' : \ |
247 | islower (x) ? (x) + 10 - 'a' : (x) + 10 - 'A') |
102 | islower (x) ? (x) + 10 - 'a' : (x) + 10 - 'A') |
248 | #define MBASE ('z' - 'a' + 1 + 10) |
103 | #define MBASE ('z' - 'a' + 1 + 10) |
249 | |
104 | |
250 | /* This seems to be lacking on some system */ |
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251 | #if !defined(HAVE_STRNCASECMP) |
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252 | int |
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253 | strncasecmp (const char *s1, const char *s2, int n) |
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254 | { |
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255 | register int c1, c2; |
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256 | |
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257 | while (*s1 && *s2 && n) |
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258 | { |
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259 | c1 = tolower (*s1); |
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260 | c2 = tolower (*s2); |
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261 | if (c1 != c2) |
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262 | return (c1 - c2); |
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263 | s1++; |
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264 | s2++; |
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265 | n--; |
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266 | } |
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267 | if (!n) |
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268 | return (0); |
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269 | return (int) (*s1 - *s2); |
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270 | } |
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271 | #endif |
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272 | |
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273 | #if !defined(HAVE_STRCASECMP) |
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274 | int |
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275 | strcasecmp (const char *s1, const char *s2) |
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276 | { |
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277 | register int c1, c2; |
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278 | |
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279 | while (*s1 && *s2) |
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280 | { |
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281 | c1 = tolower (*s1); |
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282 | c2 = tolower (*s2); |
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283 | if (c1 != c2) |
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284 | return (c1 - c2); |
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285 | s1++; |
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286 | s2++; |
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287 | } |
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288 | if (*s1 == '\0' && *s2 == '\0') |
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289 | return 0; |
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290 | return (int) (*s1 - *s2); |
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291 | } |
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292 | #endif |
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293 | |
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294 | char * |
105 | char * |
295 | strcasestr_local (const char *s, const char *find) |
106 | strcasestr_local (const char *s, const char *find) |
296 | { |
107 | { |
297 | char c, sc; |
108 | char c, sc; |
298 | size_t len; |
109 | size_t len; |
… | |
… | |
300 | if ((c = *find++) != 0) |
111 | if ((c = *find++) != 0) |
301 | { |
112 | { |
302 | c = tolower (c); |
113 | c = tolower (c); |
303 | len = strlen (find); |
114 | len = strlen (find); |
304 | do |
115 | do |
305 | { |
116 | { |
306 | do |
117 | do |
307 | { |
118 | { |
308 | if ((sc = *s++) == 0) |
119 | if ((sc = *s++) == 0) |
309 | return NULL; |
120 | return NULL; |
310 | } |
121 | } |
311 | while (tolower (sc) != c); |
122 | while (tolower (sc) != c); |
312 | } |
123 | } |
313 | while (strncasecmp (s, find, len) != 0); |
124 | while (strncasecmp (s, find, len) != 0); |
314 | s--; |
125 | s--; |
315 | } |
126 | } |
316 | return (char *) s; |
127 | return (char *) s; |
317 | } |
128 | } |
318 | |
129 | |
319 | #if !defined(HAVE_SNPRINTF) |
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320 | |
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321 | int |
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322 | snprintf (char *dest, int max, const char *format, ...) |
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323 | { |
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324 | va_list var; |
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325 | int ret; |
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326 | |
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327 | va_start (var, format); |
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328 | ret = vsprintf (dest, format, var); |
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329 | va_end (var); |
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330 | if (ret > max) |
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331 | abort (); |
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332 | |
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333 | return ret; |
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334 | } |
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335 | #endif |
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336 | |
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337 | |
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338 | /* |
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339 | * Based on (n+1)^2 = n^2 + 2n + 1 |
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340 | * given that 1^2 = 1, then |
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341 | * 2^2 = 1 + (2 + 1) = 1 + 3 = 4 |
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342 | * 3^2 = 4 + (4 + 1) = 4 + 5 = 1 + 3 + 5 = 9 |
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343 | * 4^2 = 9 + (6 + 1) = 9 + 7 = 1 + 3 + 5 + 7 = 16 |
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344 | * ... |
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345 | * In other words, a square number can be express as the sum of the |
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346 | * series n^2 = 1 + 3 + ... + (2n-1) |
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347 | */ |
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348 | int |
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349 | isqrt (int n) |
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350 | { |
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351 | int result, sum, prev; |
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352 | result = 0; |
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353 | prev = sum = 1; |
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354 | while (sum <= n) |
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355 | { |
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356 | prev += 2; |
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357 | sum += prev; |
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358 | ++result; |
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359 | } |
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360 | return result; |
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361 | } |
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362 | |
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363 | |
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364 | /* |
130 | /* |
365 | * returns a char-pointer to a static array, in which a representation |
131 | * returns a char-pointer to a static array, in which a representation |
366 | * of the decimal number given will be stored. |
132 | * of the decimal number given will be stored. |
367 | */ |
133 | */ |
368 | |
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369 | char * |
134 | char * |
370 | ltostr10 (signed long n) |
135 | ltostr10 (signed long n) |
371 | { |
136 | { |
372 | static char buf[12]; /* maximum size is n=-2 billion, i.e. 11 characters+1 |
137 | static char buf[12]; /* maximum size is n=-2 billion, i.e. 11 characters+1 |
373 | character for the trailing nul character */ |
138 | character for the trailing nul character */ |
374 | snprintf (buf, sizeof (buf), "%ld", n); |
139 | snprintf (buf, sizeof (buf), "%ld", n); |
375 | return buf; |
140 | return buf; |
376 | } |
141 | } |
377 | |
142 | |
378 | char * |
143 | char * |
379 | doubletostr10 (double v) |
144 | doubletostr10 (double v) |
380 | { |
145 | { |
381 | static char tbuf[200]; |
146 | static char tbuf[200]; |
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147 | |
382 | sprintf (tbuf, "%f", v); |
148 | sprintf (tbuf, "%f", v); |
383 | return tbuf; |
149 | return tbuf; |
384 | } |
150 | } |
385 | |
151 | |
386 | /** |
152 | /** |
… | |
… | |
388 | * then it opens it and returns the file-pointer. |
154 | * then it opens it and returns the file-pointer. |
389 | */ |
155 | */ |
390 | FILE * |
156 | FILE * |
391 | open_and_uncompress (const char *name, int flag, int *compressed) |
157 | open_and_uncompress (const char *name, int flag, int *compressed) |
392 | { |
158 | { |
393 | size_t i; |
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394 | FILE *fp; |
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395 | |
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396 | *compressed = 0; |
159 | *compressed = 0; |
397 | return fopen (name, "r"); |
160 | return fopen (name, "r"); |
398 | } |
161 | } |
399 | |
162 | |
400 | /* |
163 | /* |
401 | * See open_and_uncompress(). |
164 | * See open_and_uncompress(). |
402 | */ |
165 | */ |
403 | |
166 | |
404 | void |
167 | void |
405 | close_and_delete (FILE *fp, int compressed) |
168 | close_and_delete (FILE * fp, int compressed) |
406 | { |
169 | { |
407 | fclose (fp); |
170 | fclose (fp); |
408 | } |
171 | } |
409 | |
172 | |
410 | /* |
173 | /* |
… | |
… | |
423 | |
186 | |
424 | while ((cp = strchr (cp + 1, (int) '/'))) |
187 | while ((cp = strchr (cp + 1, (int) '/'))) |
425 | { |
188 | { |
426 | *cp = '\0'; |
189 | *cp = '\0'; |
427 | if (stat (buf, &statbuf) || !S_ISDIR (statbuf.st_mode)) |
190 | if (stat (buf, &statbuf) || !S_ISDIR (statbuf.st_mode)) |
428 | { |
191 | { |
429 | if (mkdir (buf, SAVE_DIR_MODE)) |
192 | if (mkdir (buf, SAVE_DIR_MODE)) |
430 | { |
193 | { |
431 | LOG (llevError, "Cannot mkdir %s: %s\n", buf, strerror (errno)); |
194 | LOG (llevError, "Cannot mkdir %s: %s\n", buf, strerror (errno)); |
432 | return; |
195 | return; |
433 | } |
196 | } |
434 | } |
197 | } |
435 | *cp = '/'; |
198 | *cp = '/'; |
436 | } |
199 | } |
437 | } |
200 | } |