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-rw-r--r--teal-src/util/pposix.d.tl2
-rw-r--r--util-src/pposix.c9
2 files changed, 11 insertions, 0 deletions
diff --git a/teal-src/util/pposix.d.tl b/teal-src/util/pposix.d.tl
index 7e5ce60e..68f49730 100644
--- a/teal-src/util/pposix.d.tl
+++ b/teal-src/util/pposix.d.tl
@@ -98,6 +98,8 @@ local record pposix
atomic_append : function (f : FILE, s : string) : boolean, string, integer
+ isatty : function(FILE) : boolean
+
ENOENT : integer
_NAME : string
_VESRION : string
diff --git a/util-src/pposix.c b/util-src/pposix.c
index 856905b0..87be7e9a 100644
--- a/util-src/pposix.c
+++ b/util-src/pposix.c
@@ -812,6 +812,13 @@ static int lc_atomic_append(lua_State *L) {
return 3;
}
+static int lc_isatty(lua_State *L) {
+ FILE *f = *(FILE **) luaL_checkudata(L, 1, LUA_FILEHANDLE);
+ const int fd = fileno(f);
+ lua_pushboolean(L, isatty(fd));
+ return 1;
+}
+
/* Register functions */
int luaopen_util_pposix(lua_State *L) {
@@ -853,6 +860,8 @@ int luaopen_util_pposix(lua_State *L) {
{ "atomic_append", lc_atomic_append },
+ { "isatty", lc_isatty },
+
{ NULL, NULL }
};