nixio: Implement protable behaviour of signal(), export more error

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

diff --git a/libs/nixio/src/process.c b/libs/nixio/src/process.c
index 69f19b7..af44484 100644 (file)
--- a/libs/nixio/src/process.c
+++ b/libs/nixio/src/process.c
@@ -36,6 +36,19 @@ static int nixio_fork(lua_State *L) {
        }
 }
 
+static int nixio_signal(lua_State *L) {
+       int sig = luaL_checkinteger(L, 1);
+       const char *val = luaL_checkstring(L, 2);
+
+       if (!strcmp(val, "ign") || !strcmp(val, "ignore")) {
+               return nixio__pstatus(L, signal(sig, SIG_IGN) != SIG_ERR);
+       } else if (!strcmp(val, "dfl") || !strcmp(val, "default")) {
+               return nixio__pstatus(L, signal(sig, SIG_DFL) != SIG_ERR);
+       } else {
+               return luaL_argerror(L, 2, "supported values: ign, dfl");
+       }
+}
+
 static int nixio_wait(lua_State *L) {
        pid_t pidin = luaL_optinteger(L, 1, -1), pidout;
        int options = 0, status;
@@ -148,6 +161,7 @@ static const luaL_reg R[] = {
        {"getgid",              nixio_getgid},
        {"setuid",              nixio_setuid},
        {"setgid",              nixio_setgid},
+       {"signal",              nixio_signal},
        {NULL,                  NULL}
 };