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-rw-r--r--libs/luci-lib-nixio/src/file.c33
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 b86e040e1d..cfa35dfd17 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}
};