nixio: Export more constants, introduce {g,s}et{g,u}id, getpid, getppid

[project/luci.git] / libs / nixio / src / nixio.c

diff --git a/libs/nixio/src/nixio.c b/libs/nixio/src/nixio.c
index 5f098be..d433ba4 100644 (file)
--- a/libs/nixio/src/nixio.c
+++ b/libs/nixio/src/nixio.c
@@ -20,6 +20,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <errno.h>
+#include <signal.h>
 
 #define VERSION 0.1
 
@@ -53,12 +54,6 @@ nixio_sock* nixio__checksock(lua_State *L) {
     return sock;
 }
 
-FILE* nixio__checkfile(lua_State *L) {
-       FILE **fpp = (FILE**)luaL_checkudata(L, 1, NIXIO_FILE_META);
-       luaL_argcheck(L, *fpp, 1, "invalid file object");
-       return *fpp;
-}
-
 /* read fd from nixio_sock object */
 int nixio__checksockfd(lua_State *L) {
        return nixio__checksock(L)->fd;
@@ -80,7 +75,9 @@ int nixio__tofd(lua_State *L, int ud) {
                luaL_getmetatable(L, LUA_FILEHANDLE);
                if (lua_rawequal(L, -3, -4)) {
                        fd = ((nixio_sock*)udata)->fd;
-               } else if (lua_rawequal(L, -2, -4) || lua_rawequal(L, -1, -4)) {
+               } else if (lua_rawequal(L, -2, -4)) {
+                       fd = *((int*)udata);
+               } else if (lua_rawequal(L, -1, -4)) {
                        fd = (*((FILE **)udata)) ? fileno(*((FILE **)udata)) : -1;
                }
                lua_pop(L, 4);
@@ -88,8 +85,14 @@ int nixio__tofd(lua_State *L, int ud) {
        return fd;
 }
 
+static int nixio_strerror(lua_State *L) {
+       lua_pushstring(L, strerror(luaL_checkinteger(L, 1)));
+       return 1;
+}
+
 /* object table */
 static const luaL_reg R[] = {
+       {"strerror",    nixio_strerror},
        {NULL,                  NULL}
 };
 
@@ -107,7 +110,7 @@ LUALIB_API int luaopen_nixio(lua_State *L) {
 
        /* register metatable as socket_meta */
        lua_pushvalue(L, -2);
-       lua_setfield(L, -2, "socket_meta");
+       lua_setfield(L, -2, "meta_socket");
 
        /* register methods */
        nixio_open_file(L);
@@ -118,11 +121,36 @@ LUALIB_API int luaopen_nixio(lua_State *L) {
        nixio_open_poll(L);
        nixio_open_io(L);
        nixio_open_splice(L);
+       nixio_open_process(L);
+       nixio_open_tls_context(L);
+       nixio_open_tls_socket(L);
 
        /* module version */
        lua_pushnumber(L, VERSION);
        lua_setfield(L, -2, "version");
 
+       /* some constants */
+       lua_createtable(L, 0, 16);
+
+       NIXIO_PUSH_CONSTANT(EACCES);
+       NIXIO_PUSH_CONSTANT(EINTR);
+       NIXIO_PUSH_CONSTANT(ENOSYS);
+       NIXIO_PUSH_CONSTANT(EINVAL);
+       NIXIO_PUSH_CONSTANT(EWOULDBLOCK);
+       NIXIO_PUSH_CONSTANT(EAGAIN);
+       NIXIO_PUSH_CONSTANT(ENOMEM);
+       NIXIO_PUSH_CONSTANT(ENOENT);
+       NIXIO_PUSH_CONSTANT(SIGALRM);
+       NIXIO_PUSH_CONSTANT(SIGINT);
+       NIXIO_PUSH_CONSTANT(SIGTERM);
+       NIXIO_PUSH_CONSTANT(SIGKILL);
+       NIXIO_PUSH_CONSTANT(SIGHUP);
+       NIXIO_PUSH_CONSTANT(SIGSTOP);
+       NIXIO_PUSH_CONSTANT(SIGCONT);
+       NIXIO_PUSH_CONSTANT(SIGSEGV);
+
+       lua_setfield(L, -2, "const");
+
        /* remove meta table */
        lua_remove(L, -2);