-
Notifications
You must be signed in to change notification settings - Fork 38
/
game_support.cpp
215 lines (179 loc) · 6.2 KB
/
game_support.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
#include "precompiled.h"
// Adapted from adminmod h_export.cpp:
//! this structure contains a list of supported mods and their dlls names
//! To add support for another mod add an entry here, and add all the
//! exported entities to link_func.cpp
const game_modinfo_t g_known_games[] = {
// name/gamedir linux_so win_dll desc
//
// Previously enumerated in this sourcefile, the list is now kept in a
// separate file, generated based on game information stored in a
// convenient db.
{ "valve", "hl.so", "hl.dll", "Half-Life" },
{ "bshift", "bshift.so", "hl.dll", "Half-Life: Blue Shift" },
{ "ag", "ag.so", "ag.dll", "Adrenaline Gamer" },
{ "cstrike", "cs.so", "mp.dll", "Counter-Strike" },
{ "czero", "cs.so", "mp.dll", "Counter-Strike:Condition Zero" },
{ "czeror", "cz.so", "cz.dll", "Counter-Strike:Condition Zero Deleted Scenes" },
{ "ricochet", "ricochet.so", "mp.dll", "Ricochet" },
{ "dmc", "dmc.so", "dmc.dll", "Deathmatch Classic" },
{ "dod", "dod.so", "dod.dll", "Day of Defeat" },
{ "tfc", "tfc.so", "tfc.dll", "Team Fortress Classic" },
{ "gearbox", "opfor.so", "opfor.dll", "Opposing Force" },
{ "ns", "ns.so", "ns.dll", "Natural Selection" },
{ "nsp", "ns.so", "ns.dll", "Natural Selection Beta" },
// End of list terminator:
{ nullptr, nullptr, nullptr, nullptr }
};
// Find a modinfo corresponding to the given game name.
static const game_modinfo_t *lookup_game(const char *name)
{
for (auto& known : g_known_games) {
if (known.name && !Q_stricmp(known.name, name))
return &known;
}
// no match found
return nullptr;
}
bool lookup_game_postfixes(gamedll_t *gamedll)
{
char pathname[PATH_MAX];
static char postfix_path[PATH_MAX] = "";
strlcpy(pathname, gamedll->pathname);
// find extensions and skip
char *pos = strrchr(pathname, '.');
if (pos) {
*pos = '\0';
}
for (size_t i = 0; i < arraysize(g_platform_postfixes); i++)
{
postfix_path[0] = '\0';
strlcat(postfix_path, pathname);
strlcat(postfix_path, g_platform_postfixes[i]);
if (is_file_exists_in_gamedir(postfix_path)) {
strlcpy(gamedll->pathname, postfix_path);
strlcpy(gamedll->real_pathname, postfix_path);
gamedll->file = postfix_path;
return true;
}
}
return false;
}
// Installs gamedll from Steam cache
bool install_gamedll(char *from, const char *to)
{
if (!from)
return false;
if (!to)
to = from;
int length_in;
byte *cachefile = LOAD_FILE_FOR_ME(from, &length_in);
// If the file seems to exist in the cache.
if (cachefile) {
int fd = open(to, O_WRONLY | O_CREAT | O_EXCL | O_BINARY, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
if (fd < 0) {
META_DEBUG(3, "Installing gamedll from cache: Failed to create file %s: %s", to, strerror(errno));
FREE_FILE(cachefile);
return false;
}
int length_out = Q_write(fd, cachefile, length_in);
FREE_FILE(cachefile);
close(fd);
// Writing the file was not successfull
if (length_out != length_in) {
META_DEBUG(3, "Installing gamedll from chache: Failed to write all %d bytes to file, only %d written: %s", length_in, length_out, strerror(errno));
// Let's not leave a mess but clean up nicely.
if (length_out >= 0)
_unlink(to);
return false;
}
META_LOG("Installed gamedll %s from cache.", to);
}
else {
META_DEBUG(3, "Failed to install gamedll from cache: file %s not found in cache.", from);
return false;
}
return true;
}
// Set all the fields in the gamedll struct, - based either on an entry in
// known_games matching the current gamedir, or on one specified manually
// by the server admin.
//
// meta_errno values:
// - ME_NOTFOUND couldn't recognize game
bool setup_gamedll(gamedll_t *gamedll)
{
bool override = false;
const game_modinfo_t *known;
const char *knownfn = nullptr;
// First, look for a known game, based on gamedir.
if ((known = lookup_game(gamedll->name))) {
#ifdef _WIN32
knownfn = known->win_dll;
#else
knownfn = known->linux_so;
#endif
}
// Neither override nor known-list found a gamedll.
if (!known && !g_config->m_gamedll)
return false;
// Use override-dll if specified.
if (g_config->m_gamedll) {
strlcpy(gamedll->pathname, g_config->m_gamedll);
// If the path is relative, the gamedll file will be missing and
// it might be found in the cache file.
if (!is_abs_path(gamedll->pathname)) {
char szInstallPath[MAX_PATH];
Q_snprintf(szInstallPath, sizeof(szInstallPath), "%s/%s", gamedll->gamedir, gamedll->pathname);
// If we could successfully install the gamedll from the cache we
// rectify the pathname to be a full pathname.
if (install_gamedll(gamedll->pathname, szInstallPath)) {
strlcpy(gamedll->pathname, szInstallPath);
}
}
override = true;
}
// Else use Known-list dll.
else if (known) {
Q_snprintf(gamedll->pathname, sizeof(gamedll->pathname), "%s/dlls/%s", gamedll->gamedir, knownfn);
}
else {
// Neither override nor known-list found a gamedll.
return false;
}
// get filename from pathname
char *cp = Q_strrchr(gamedll->pathname, '/');
if (cp)
cp++;
else
cp = gamedll->pathname;
gamedll->file = cp;
// If found, store also the supposed "real" dll path based on the
// gamedir, in case it differs from the "override" dll path.
if (known && override) {
Q_snprintf(gamedll->real_pathname, sizeof(gamedll->real_pathname), "%s/dlls/%s", gamedll->gamedir, knownfn);
}
else {
strlcpy(gamedll->real_pathname, gamedll->pathname);
}
if (override) {
// generate a desc
Q_snprintf(gamedll->desc, sizeof(gamedll->desc), "%s (override)", gamedll->file);
// log result
META_LOG("Overriding game '%s' with dllfile '%s'", gamedll->name, gamedll->file);
}
else if (known) {
strlcpy(gamedll->desc, known->desc);
#if !defined(_WIN32)
if (!is_file_exists_in_gamedir(gamedll->pathname))
{
// trying lookup gamedll with postfixes ie _i386.so
if (lookup_game_postfixes(gamedll)) {
META_DEBUG(3, "dll: Trying lookup to gamedll with postfixes was a success. Game '%s'", gamedll->pathname);
}
}
#endif
META_LOG("Recognized game '%s'; using dllfile '%s'", gamedll->name, gamedll->file);
}
return true;
}