| 1 |
/* |
| 2 |
CrossFire, A Multiplayer game for X-windows |
| 3 |
|
| 4 |
Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team |
| 5 |
Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
| 6 |
Copyright (C) 1992 Frank Tore Johansen |
| 7 |
|
| 8 |
This program 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 2 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, write to the Free Software |
| 20 |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 21 |
|
| 22 |
The authors can be reached via e-mail at <crossfire@schmorp.de> |
| 23 |
*/ |
| 24 |
|
| 25 |
/* This file contains various functions that are not really unique for |
| 26 |
* crossfire, but rather provides what should be standard functions |
| 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 |
| 29 |
* calling these functions. |
| 30 |
*/ |
| 31 |
|
| 32 |
|
| 33 |
/* Need to pull in the HAVE_... values somehow */ |
| 34 |
|
| 35 |
#include <autoconf.h> |
| 36 |
|
| 37 |
#include <cstdio> |
| 38 |
#include <cstdlib> |
| 39 |
#include <cstdarg> |
| 40 |
|
| 41 |
#include <cctype> |
| 42 |
|
| 43 |
#include <sys/stat.h> |
| 44 |
#include <sys/wait.h> |
| 45 |
|
| 46 |
#include <sys/param.h> |
| 47 |
|
| 48 |
#include <unistd.h> |
| 49 |
|
| 50 |
/* Has to be after above includes so we don't redefine some values */ |
| 51 |
#include "global.h" |
| 52 |
|
| 53 |
static unsigned int curtmp = 0; |
| 54 |
|
| 55 |
/* This function removes everything in the directory. */ |
| 56 |
void |
| 57 |
remove_directory (const char *path) |
| 58 |
{ |
| 59 |
DIR *dirp; |
| 60 |
char buf[MAX_BUF]; |
| 61 |
struct stat statbuf; |
| 62 |
int status; |
| 63 |
|
| 64 |
if ((dirp = opendir (path)) != NULL) |
| 65 |
{ |
| 66 |
struct dirent *de; |
| 67 |
|
| 68 |
for (de = readdir (dirp); de; de = readdir (dirp)) |
| 69 |
{ |
| 70 |
/* Don't remove '.' or '..' In theory we should do a better |
| 71 |
* check for .., but the directories we are removing are fairly |
| 72 |
* limited and should not have dot files in them. |
| 73 |
*/ |
| 74 |
if (de->d_name[0] == '.') |
| 75 |
continue; |
| 76 |
|
| 77 |
/* Linux actually has a type field in the dirent structure, |
| 78 |
* but that is not portable - stat should be portable |
| 79 |
*/ |
| 80 |
status = stat (de->d_name, &statbuf); |
| 81 |
if ((status != -1) && (S_ISDIR (statbuf.st_mode))) |
| 82 |
{ |
| 83 |
sprintf (buf, "%s/%s", path, de->d_name); |
| 84 |
remove_directory (buf); |
| 85 |
continue; |
| 86 |
} |
| 87 |
sprintf (buf, "%s/%s", path, de->d_name); |
| 88 |
if (unlink (buf)) |
| 89 |
{ |
| 90 |
LOG (llevError, "Unable to remove directory %s\n", path); |
| 91 |
} |
| 92 |
} |
| 93 |
closedir (dirp); |
| 94 |
} |
| 95 |
if (rmdir (path)) |
| 96 |
{ |
| 97 |
LOG (llevError, "Unable to remove directory %s\n", path); |
| 98 |
} |
| 99 |
} |
| 100 |
|
| 101 |
#define DIGIT(x) (isdigit(x) ? (x) - '0' : \ |
| 102 |
islower (x) ? (x) + 10 - 'a' : (x) + 10 - 'A') |
| 103 |
#define MBASE ('z' - 'a' + 1 + 10) |
| 104 |
|
| 105 |
char * |
| 106 |
strcasestr_local (const char *s, const char *find) |
| 107 |
{ |
| 108 |
char c, sc; |
| 109 |
size_t len; |
| 110 |
|
| 111 |
if ((c = *find++) != 0) |
| 112 |
{ |
| 113 |
c = tolower (c); |
| 114 |
len = strlen (find); |
| 115 |
do |
| 116 |
{ |
| 117 |
do |
| 118 |
{ |
| 119 |
if ((sc = *s++) == 0) |
| 120 |
return NULL; |
| 121 |
} |
| 122 |
while (tolower (sc) != c); |
| 123 |
} |
| 124 |
while (strncasecmp (s, find, len) != 0); |
| 125 |
s--; |
| 126 |
} |
| 127 |
return (char *) s; |
| 128 |
} |
| 129 |
|
| 130 |
/* |
| 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 |
| 135 |
* 4^2 = 9 + (6 + 1) = 9 + 7 = 1 + 3 + 5 + 7 = 16 |
| 136 |
* ... |
| 137 |
* In other words, a square number can be express as the sum of the |
| 138 |
* series n^2 = 1 + 3 + ... + (2n-1) |
| 139 |
*/ |
| 140 |
int |
| 141 |
isqrt (int n) |
| 142 |
{ |
| 143 |
int result, sum, prev; |
| 144 |
|
| 145 |
result = 0; |
| 146 |
prev = sum = 1; |
| 147 |
while (sum <= n) |
| 148 |
{ |
| 149 |
prev += 2; |
| 150 |
sum += prev; |
| 151 |
++result; |
| 152 |
} |
| 153 |
return result; |
| 154 |
} |
| 155 |
|
| 156 |
/* |
| 157 |
* returns a char-pointer to a static array, in which a representation |
| 158 |
* of the decimal number given will be stored. |
| 159 |
*/ |
| 160 |
char * |
| 161 |
ltostr10 (signed long n) |
| 162 |
{ |
| 163 |
static char buf[12]; /* maximum size is n=-2 billion, i.e. 11 characters+1 |
| 164 |
character for the trailing nul character */ |
| 165 |
snprintf (buf, sizeof (buf), "%ld", n); |
| 166 |
return buf; |
| 167 |
} |
| 168 |
|
| 169 |
char * |
| 170 |
doubletostr10 (double v) |
| 171 |
{ |
| 172 |
static char tbuf[200]; |
| 173 |
|
| 174 |
sprintf (tbuf, "%f", v); |
| 175 |
return tbuf; |
| 176 |
} |
| 177 |
|
| 178 |
/** |
| 179 |
* open_and_uncompress() first searches for the original filename. If it exist, |
| 180 |
* then it opens it and returns the file-pointer. |
| 181 |
*/ |
| 182 |
FILE * |
| 183 |
open_and_uncompress (const char *name, int flag, int *compressed) |
| 184 |
{ |
| 185 |
*compressed = 0; |
| 186 |
return fopen (name, "r"); |
| 187 |
} |
| 188 |
|
| 189 |
/* |
| 190 |
* See open_and_uncompress(). |
| 191 |
*/ |
| 192 |
|
| 193 |
void |
| 194 |
close_and_delete (FILE * fp, int compressed) |
| 195 |
{ |
| 196 |
fclose (fp); |
| 197 |
} |
| 198 |
|
| 199 |
/* |
| 200 |
* If any directories in the given path doesn't exist, they are created. |
| 201 |
*/ |
| 202 |
|
| 203 |
void |
| 204 |
make_path_to_file (char *filename) |
| 205 |
{ |
| 206 |
char buf[MAX_BUF], *cp = buf; |
| 207 |
struct stat statbuf; |
| 208 |
|
| 209 |
if (!filename || !*filename) |
| 210 |
return; |
| 211 |
strcpy (buf, filename); |
| 212 |
|
| 213 |
while ((cp = strchr (cp + 1, (int) '/'))) |
| 214 |
{ |
| 215 |
*cp = '\0'; |
| 216 |
if (stat (buf, &statbuf) || !S_ISDIR (statbuf.st_mode)) |
| 217 |
{ |
| 218 |
if (mkdir (buf, SAVE_DIR_MODE)) |
| 219 |
{ |
| 220 |
LOG (llevError, "Cannot mkdir %s: %s\n", buf, strerror (errno)); |
| 221 |
return; |
| 222 |
} |
| 223 |
} |
| 224 |
*cp = '/'; |
| 225 |
} |
| 226 |
} |
