author | Wuzzy <Wuzzy2@mail.ru> |
Mon, 03 Sep 2018 00:53:44 +0200 | |
changeset 13746 | 1a26c472f5ef |
parent 12867 | 0a18aaa0d329 |
permissions | -rw-r--r-- |
2812 | 1 |
/* |
2 |
** $Id: loslib.c,v 1.19.1.3 2008/01/18 16:38:18 roberto Exp $ |
|
3 |
** Standard Operating System library |
|
4 |
** See Copyright Notice in lua.h |
|
5 |
*/ |
|
6 |
||
7 |
||
8 |
#include <errno.h> |
|
9 |
#include <locale.h> |
|
10 |
#include <stdlib.h> |
|
11 |
#include <string.h> |
|
12 |
#include <time.h> |
|
13 |
||
14 |
#define loslib_c |
|
15 |
#define LUA_LIB |
|
16 |
||
17 |
#include "lua.h" |
|
18 |
||
19 |
#include "lauxlib.h" |
|
20 |
#include "lualib.h" |
|
21 |
||
12867
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
22 |
#if ((defined __MACH__) && (defined __APPLE__)) |
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
23 |
#include <TargetConditionals.h> |
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
24 |
#if TARGET_OS_IPHONE |
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
25 |
#define LUA_PLATFORM_IOS 1 |
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
26 |
#endif |
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
27 |
#endif |
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
28 |
|
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
29 |
#ifdef LUA_PLATFORM_IOS |
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
30 |
#include <spawn.h> |
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
31 |
extern char **environ; |
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
32 |
#endif |
2812 | 33 |
|
34 |
static int os_pushresult (lua_State *L, int i, const char *filename) { |
|
35 |
int en = errno; /* calls to Lua API may change this value */ |
|
36 |
if (i) { |
|
37 |
lua_pushboolean(L, 1); |
|
38 |
return 1; |
|
39 |
} |
|
40 |
else { |
|
41 |
lua_pushnil(L); |
|
42 |
lua_pushfstring(L, "%s: %s", filename, strerror(en)); |
|
43 |
lua_pushinteger(L, en); |
|
44 |
return 3; |
|
45 |
} |
|
46 |
} |
|
47 |
||
48 |
||
49 |
static int os_execute (lua_State *L) { |
|
12867
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
50 |
const char *command = luaL_optstring(L, 1, NULL); |
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
51 |
int status; |
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
52 |
#ifndef LUA_PLATFORM_IOS |
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
53 |
status = system(command); |
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
54 |
#else |
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
55 |
// untested, may require adjustments depending on `command` |
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
56 |
pid_t pid; |
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
57 |
char *argv[] = { (char *)command, NULL }; |
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
58 |
posix_spawn(&pid, argv[0], NULL, NULL, argv, environ); |
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
59 |
waitpid(pid, &status, 0); |
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
60 |
#endif |
0a18aaa0d329
- Fix deprecated `system` in Lua for iOS 11 (not tested)
antonc27 <antonc27@mail.ru>
parents:
2812
diff
changeset
|
61 |
lua_pushinteger(L, status); |
2812 | 62 |
return 1; |
63 |
} |
|
64 |
||
65 |
||
66 |
static int os_remove (lua_State *L) { |
|
67 |
const char *filename = luaL_checkstring(L, 1); |
|
68 |
return os_pushresult(L, remove(filename) == 0, filename); |
|
69 |
} |
|
70 |
||
71 |
||
72 |
static int os_rename (lua_State *L) { |
|
73 |
const char *fromname = luaL_checkstring(L, 1); |
|
74 |
const char *toname = luaL_checkstring(L, 2); |
|
75 |
return os_pushresult(L, rename(fromname, toname) == 0, fromname); |
|
76 |
} |
|
77 |
||
78 |
||
79 |
static int os_tmpname (lua_State *L) { |
|
80 |
char buff[LUA_TMPNAMBUFSIZE]; |
|
81 |
int err; |
|
82 |
lua_tmpnam(buff, err); |
|
83 |
if (err) |
|
84 |
return luaL_error(L, "unable to generate a unique filename"); |
|
85 |
lua_pushstring(L, buff); |
|
86 |
return 1; |
|
87 |
} |
|
88 |
||
89 |
||
90 |
static int os_getenv (lua_State *L) { |
|
91 |
lua_pushstring(L, getenv(luaL_checkstring(L, 1))); /* if NULL push nil */ |
|
92 |
return 1; |
|
93 |
} |
|
94 |
||
95 |
||
96 |
static int os_clock (lua_State *L) { |
|
97 |
lua_pushnumber(L, ((lua_Number)clock())/(lua_Number)CLOCKS_PER_SEC); |
|
98 |
return 1; |
|
99 |
} |
|
100 |
||
101 |
||
102 |
/* |
|
103 |
** {====================================================== |
|
104 |
** Time/Date operations |
|
105 |
** { year=%Y, month=%m, day=%d, hour=%H, min=%M, sec=%S, |
|
106 |
** wday=%w+1, yday=%j, isdst=? } |
|
107 |
** ======================================================= |
|
108 |
*/ |
|
109 |
||
110 |
static void setfield (lua_State *L, const char *key, int value) { |
|
111 |
lua_pushinteger(L, value); |
|
112 |
lua_setfield(L, -2, key); |
|
113 |
} |
|
114 |
||
115 |
static void setboolfield (lua_State *L, const char *key, int value) { |
|
116 |
if (value < 0) /* undefined? */ |
|
117 |
return; /* does not set field */ |
|
118 |
lua_pushboolean(L, value); |
|
119 |
lua_setfield(L, -2, key); |
|
120 |
} |
|
121 |
||
122 |
static int getboolfield (lua_State *L, const char *key) { |
|
123 |
int res; |
|
124 |
lua_getfield(L, -1, key); |
|
125 |
res = lua_isnil(L, -1) ? -1 : lua_toboolean(L, -1); |
|
126 |
lua_pop(L, 1); |
|
127 |
return res; |
|
128 |
} |
|
129 |
||
130 |
||
131 |
static int getfield (lua_State *L, const char *key, int d) { |
|
132 |
int res; |
|
133 |
lua_getfield(L, -1, key); |
|
134 |
if (lua_isnumber(L, -1)) |
|
135 |
res = (int)lua_tointeger(L, -1); |
|
136 |
else { |
|
137 |
if (d < 0) |
|
138 |
return luaL_error(L, "field " LUA_QS " missing in date table", key); |
|
139 |
res = d; |
|
140 |
} |
|
141 |
lua_pop(L, 1); |
|
142 |
return res; |
|
143 |
} |
|
144 |
||
145 |
||
146 |
static int os_date (lua_State *L) { |
|
147 |
const char *s = luaL_optstring(L, 1, "%c"); |
|
148 |
time_t t = luaL_opt(L, (time_t)luaL_checknumber, 2, time(NULL)); |
|
149 |
struct tm *stm; |
|
150 |
if (*s == '!') { /* UTC? */ |
|
151 |
stm = gmtime(&t); |
|
152 |
s++; /* skip `!' */ |
|
153 |
} |
|
154 |
else |
|
155 |
stm = localtime(&t); |
|
156 |
if (stm == NULL) /* invalid date? */ |
|
157 |
lua_pushnil(L); |
|
158 |
else if (strcmp(s, "*t") == 0) { |
|
159 |
lua_createtable(L, 0, 9); /* 9 = number of fields */ |
|
160 |
setfield(L, "sec", stm->tm_sec); |
|
161 |
setfield(L, "min", stm->tm_min); |
|
162 |
setfield(L, "hour", stm->tm_hour); |
|
163 |
setfield(L, "day", stm->tm_mday); |
|
164 |
setfield(L, "month", stm->tm_mon+1); |
|
165 |
setfield(L, "year", stm->tm_year+1900); |
|
166 |
setfield(L, "wday", stm->tm_wday+1); |
|
167 |
setfield(L, "yday", stm->tm_yday+1); |
|
168 |
setboolfield(L, "isdst", stm->tm_isdst); |
|
169 |
} |
|
170 |
else { |
|
171 |
char cc[3]; |
|
172 |
luaL_Buffer b; |
|
173 |
cc[0] = '%'; cc[2] = '\0'; |
|
174 |
luaL_buffinit(L, &b); |
|
175 |
for (; *s; s++) { |
|
176 |
if (*s != '%' || *(s + 1) == '\0') /* no conversion specifier? */ |
|
177 |
luaL_addchar(&b, *s); |
|
178 |
else { |
|
179 |
size_t reslen; |
|
180 |
char buff[200]; /* should be big enough for any conversion result */ |
|
181 |
cc[1] = *(++s); |
|
182 |
reslen = strftime(buff, sizeof(buff), cc, stm); |
|
183 |
luaL_addlstring(&b, buff, reslen); |
|
184 |
} |
|
185 |
} |
|
186 |
luaL_pushresult(&b); |
|
187 |
} |
|
188 |
return 1; |
|
189 |
} |
|
190 |
||
191 |
||
192 |
static int os_time (lua_State *L) { |
|
193 |
time_t t; |
|
194 |
if (lua_isnoneornil(L, 1)) /* called without args? */ |
|
195 |
t = time(NULL); /* get current time */ |
|
196 |
else { |
|
197 |
struct tm ts; |
|
198 |
luaL_checktype(L, 1, LUA_TTABLE); |
|
199 |
lua_settop(L, 1); /* make sure table is at the top */ |
|
200 |
ts.tm_sec = getfield(L, "sec", 0); |
|
201 |
ts.tm_min = getfield(L, "min", 0); |
|
202 |
ts.tm_hour = getfield(L, "hour", 12); |
|
203 |
ts.tm_mday = getfield(L, "day", -1); |
|
204 |
ts.tm_mon = getfield(L, "month", -1) - 1; |
|
205 |
ts.tm_year = getfield(L, "year", -1) - 1900; |
|
206 |
ts.tm_isdst = getboolfield(L, "isdst"); |
|
207 |
t = mktime(&ts); |
|
208 |
} |
|
209 |
if (t == (time_t)(-1)) |
|
210 |
lua_pushnil(L); |
|
211 |
else |
|
212 |
lua_pushnumber(L, (lua_Number)t); |
|
213 |
return 1; |
|
214 |
} |
|
215 |
||
216 |
||
217 |
static int os_difftime (lua_State *L) { |
|
218 |
lua_pushnumber(L, difftime((time_t)(luaL_checknumber(L, 1)), |
|
219 |
(time_t)(luaL_optnumber(L, 2, 0)))); |
|
220 |
return 1; |
|
221 |
} |
|
222 |
||
223 |
/* }====================================================== */ |
|
224 |
||
225 |
||
226 |
static int os_setlocale (lua_State *L) { |
|
227 |
static const int cat[] = {LC_ALL, LC_COLLATE, LC_CTYPE, LC_MONETARY, |
|
228 |
LC_NUMERIC, LC_TIME}; |
|
229 |
static const char *const catnames[] = {"all", "collate", "ctype", "monetary", |
|
230 |
"numeric", "time", NULL}; |
|
231 |
const char *l = luaL_optstring(L, 1, NULL); |
|
232 |
int op = luaL_checkoption(L, 2, "all", catnames); |
|
233 |
lua_pushstring(L, setlocale(cat[op], l)); |
|
234 |
return 1; |
|
235 |
} |
|
236 |
||
237 |
||
238 |
static int os_exit (lua_State *L) { |
|
239 |
exit(luaL_optint(L, 1, EXIT_SUCCESS)); |
|
240 |
} |
|
241 |
||
242 |
static const luaL_Reg syslib[] = { |
|
243 |
{"clock", os_clock}, |
|
244 |
{"date", os_date}, |
|
245 |
{"difftime", os_difftime}, |
|
246 |
{"execute", os_execute}, |
|
247 |
{"exit", os_exit}, |
|
248 |
{"getenv", os_getenv}, |
|
249 |
{"remove", os_remove}, |
|
250 |
{"rename", os_rename}, |
|
251 |
{"setlocale", os_setlocale}, |
|
252 |
{"time", os_time}, |
|
253 |
{"tmpname", os_tmpname}, |
|
254 |
{NULL, NULL} |
|
255 |
}; |
|
256 |
||
257 |
/* }====================================================== */ |
|
258 |
||
259 |
||
260 |
||
261 |
LUALIB_API int luaopen_os (lua_State *L) { |
|
262 |
luaL_register(L, LUA_OSLIBNAME, syslib); |
|
263 |
return 1; |
|
264 |
} |
|
265 |