summaryrefslogtreecommitdiff
path: root/Build/source/libs/lua53/lua53-src/src/liolib.c.orig
diff options
context:
space:
mode:
Diffstat (limited to 'Build/source/libs/lua53/lua53-src/src/liolib.c.orig')
-rw-r--r--Build/source/libs/lua53/lua53-src/src/liolib.c.orig2
1 files changed, 2 insertions, 0 deletions
diff --git a/Build/source/libs/lua53/lua53-src/src/liolib.c.orig b/Build/source/libs/lua53/lua53-src/src/liolib.c.orig
index 8a9e75cd089..027d4bd0db4 100644
--- a/Build/source/libs/lua53/lua53-src/src/liolib.c.orig
+++ b/Build/source/libs/lua53/lua53-src/src/liolib.c.orig
@@ -277,6 +277,8 @@ static int io_popen (lua_State *L) {
const char *filename = luaL_checkstring(L, 1);
const char *mode = luaL_optstring(L, 2, "r");
LStream *p = newprefile(L);
+ luaL_argcheck(L, ((mode[0] == 'r' || mode[0] == 'w') && mode[1] == '\0'),
+ 2, "invalid mode");
p->f = l_popen(L, filename, mode);
p->closef = &io_pclose;
return (p->f == NULL) ? luaL_fileresult(L, 0, filename) : 1;