diff options
Diffstat (limited to 'libs/luci-lib-nixio/src/file.c')
| -rw-r--r-- | libs/luci-lib-nixio/src/file.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/libs/luci-lib-nixio/src/file.c b/libs/luci-lib-nixio/src/file.c index b86e040e1..cfa35dfd1 100644 --- a/libs/luci-lib-nixio/src/file.c +++ b/libs/luci-lib-nixio/src/file.c @@ -79,6 +79,38 @@ static int nixio_open(lua_State *L) { return 1; } +static int nixio_mkstemp(lua_State *L) { + const char *intemplate = luaL_checklstring(L, 1, NULL); + size_t len = lua_strlen(L, 1); + char *template = (char *)lua_newuserdata(L, 13 + len); + if (!template) { + return luaL_error(L, "out of memory"); + } + snprintf(template, 13 + len, "/tmp/%s.XXXXXX", intemplate); + + int fd; + + do { + fd = mkstemp(template); + } while (fd == -1 && errno == EINTR); + if (fd == -1) { + return nixio__perror(L); + } + unlink(template); + + int *udata = lua_newuserdata(L, sizeof(int)); + if (!udata) { + return luaL_error(L, "out of memory"); + } + + *udata = fd; + + luaL_getmetatable(L, NIXIO_FILE_META); + lua_setmetatable(L, -2); + + return 1; +} + static int nixio_open_flags(lua_State *L) { int mode = 0; const int j = lua_gettop(L); @@ -366,6 +398,7 @@ static const luaL_reg R[] = { {"dup", nixio_dup}, {"open", nixio_open}, {"open_flags", nixio_open_flags}, + {"mkstemp", nixio_mkstemp}, {"pipe", nixio_pipe}, {NULL, NULL} }; |