From 68a95e68067417714a52aedef4372f631a5ca6a8 Mon Sep 17 00:00:00 2001
From: Steven Barth <steven@midlink.org>
Date: Mon, 9 Mar 2009 22:19:47 +0000
Subject: [PATCH] nixio: Implement protable behaviour of signal(), export more
 error constants

---
 libs/nixio/src/nixio.c   | 35 ++++++++++++++++++++++++++++++++++-
 libs/nixio/src/process.c | 14 ++++++++++++++
 2 files changed, 48 insertions(+), 1 deletion(-)

diff --git a/libs/nixio/src/nixio.c b/libs/nixio/src/nixio.c
index d433ba4fd..133837168 100644
--- a/libs/nixio/src/nixio.c
+++ b/libs/nixio/src/nixio.c
@@ -130,7 +130,7 @@ LUALIB_API int luaopen_nixio(lua_State *L) {
 	lua_setfield(L, -2, "version");
 
 	/* some constants */
-	lua_createtable(L, 0, 16);
+	lua_createtable(L, 0, 49);
 
 	NIXIO_PUSH_CONSTANT(EACCES);
 	NIXIO_PUSH_CONSTANT(EINTR);
@@ -140,6 +140,33 @@ LUALIB_API int luaopen_nixio(lua_State *L) {
 	NIXIO_PUSH_CONSTANT(EAGAIN);
 	NIXIO_PUSH_CONSTANT(ENOMEM);
 	NIXIO_PUSH_CONSTANT(ENOENT);
+	NIXIO_PUSH_CONSTANT(ECHILD);
+	NIXIO_PUSH_CONSTANT(EIO);
+	NIXIO_PUSH_CONSTANT(EBADF);
+	NIXIO_PUSH_CONSTANT(EFAULT);
+	NIXIO_PUSH_CONSTANT(EFBIG);
+	NIXIO_PUSH_CONSTANT(ENOSPC);
+	NIXIO_PUSH_CONSTANT(EPIPE);
+	NIXIO_PUSH_CONSTANT(ESPIPE);
+	NIXIO_PUSH_CONSTANT(EISDIR);
+	NIXIO_PUSH_CONSTANT(EPERM);
+	NIXIO_PUSH_CONSTANT(EEXIST);
+	NIXIO_PUSH_CONSTANT(ELOOP);
+	NIXIO_PUSH_CONSTANT(EMFILE);
+	NIXIO_PUSH_CONSTANT(ENAMETOOLONG);
+	NIXIO_PUSH_CONSTANT(ENFILE);
+	NIXIO_PUSH_CONSTANT(ENODEV);
+	NIXIO_PUSH_CONSTANT(ENOTDIR);
+	NIXIO_PUSH_CONSTANT(ENXIO);
+	NIXIO_PUSH_CONSTANT(EOVERFLOW);
+	NIXIO_PUSH_CONSTANT(EROFS);
+	NIXIO_PUSH_CONSTANT(ETXTBSY);
+	NIXIO_PUSH_CONSTANT(EAFNOSUPPORT);
+	NIXIO_PUSH_CONSTANT(ENOBUFS);
+	NIXIO_PUSH_CONSTANT(EPROTONOSUPPORT);
+	NIXIO_PUSH_CONSTANT(ENOPROTOOPT);
+	NIXIO_PUSH_CONSTANT(EBUSY);
+	NIXIO_PUSH_CONSTANT(ESRCH);
 	NIXIO_PUSH_CONSTANT(SIGALRM);
 	NIXIO_PUSH_CONSTANT(SIGINT);
 	NIXIO_PUSH_CONSTANT(SIGTERM);
@@ -148,6 +175,12 @@ LUALIB_API int luaopen_nixio(lua_State *L) {
 	NIXIO_PUSH_CONSTANT(SIGSTOP);
 	NIXIO_PUSH_CONSTANT(SIGCONT);
 	NIXIO_PUSH_CONSTANT(SIGSEGV);
+	NIXIO_PUSH_CONSTANT(SIGCHLD);
+	NIXIO_PUSH_CONSTANT(SIGQUIT);
+	NIXIO_PUSH_CONSTANT(SIGUSR1);
+	NIXIO_PUSH_CONSTANT(SIGUSR2);
+	NIXIO_PUSH_CONSTANT(SIGPOLL);
+	NIXIO_PUSH_CONSTANT(SIGURG);
 
 	lua_setfield(L, -2, "const");
 
diff --git a/libs/nixio/src/process.c b/libs/nixio/src/process.c
index 69f19b7ac..af44484da 100644
--- 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}
 };
 
-- 
2.11.0