60 lines
1 KiB
Diff
60 lines
1 KiB
Diff
--- loslib.c
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+++ loslib.c
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@@ -4,6 +4,12 @@
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** See Copyright Notice in lua.h
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*/
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+/***
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+ * Operating system related facilities.
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+ *
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+ * @module os
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+ */
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+
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#define loslib_c
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#define LUA_LIB
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@@ -14,6 +20,7 @@
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#include <locale.h>
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#include <stdlib.h>
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#include <string.h>
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+#include <unistd.h>
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#include <time.h>
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#include "lua.h"
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@@ -401,7 +408,28 @@
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return 0;
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}
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+#ifndef HOST_NAME_MAX
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+#define HOST_NAME_MAX 256 /* according to POSIX */
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+#endif
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+/***
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+ * Returns the system hostname.
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+ *
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+ * @function hostname
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+ * @usage local hostname = os.hostname()
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+ */
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+static int
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+os_hostname(lua_State *L)
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+{
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+ char buffer[HOST_NAME_MAX];
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+
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+ gethostname(buffer, HOST_NAME_MAX); /* get hostname */
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+ lua_pushstring(L, buffer);
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+
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+ return 1;
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+}
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+
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+
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static const luaL_Reg syslib[] = {
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{"clock", os_clock},
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{"date", os_date},
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@@ -409,6 +435,7 @@
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{"execute", os_execute},
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{"exit", os_exit},
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{"getenv", os_getenv},
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+ {"hostname", os_hostname},
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{"remove", os_remove},
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{"rename", os_rename},
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{"setlocale", os_setlocale},
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