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-rw-r--r--Build/source/texk/web2c/luatexdir/luasocket/src/udp.c319
1 files changed, 167 insertions, 152 deletions
diff --git a/Build/source/texk/web2c/luatexdir/luasocket/src/udp.c b/Build/source/texk/web2c/luatexdir/luasocket/src/udp.c
index 8e88b1784a2..605c1950f2b 100644
--- a/Build/source/texk/web2c/luatexdir/luasocket/src/udp.c
+++ b/Build/source/texk/web2c/luatexdir/luasocket/src/udp.c
@@ -3,9 +3,11 @@
* LuaSocket toolkit
\*=========================================================================*/
#include <string.h>
+#include <stdlib.h>
#include "lua.h"
#include "lauxlib.h"
+#include "compat.h"
#include "auxiliar.h"
#include "socket.h"
@@ -25,6 +27,7 @@
* Internal function prototypes
\*=========================================================================*/
static int global_create(lua_State *L);
+static int global_create4(lua_State *L);
static int global_create6(lua_State *L);
static int meth_send(lua_State *L);
static int meth_sendto(lua_State *L);
@@ -33,6 +36,7 @@ static int meth_receivefrom(lua_State *L);
static int meth_getfamily(lua_State *L);
static int meth_getsockname(lua_State *L);
static int meth_getpeername(lua_State *L);
+static int meth_gettimeout(lua_State *L);
static int meth_setsockname(lua_State *L);
static int meth_setpeername(lua_State *L);
static int meth_close(lua_State *L);
@@ -63,34 +67,50 @@ static luaL_Reg udp_methods[] = {
{"setpeername", meth_setpeername},
{"setsockname", meth_setsockname},
{"settimeout", meth_settimeout},
+ {"gettimeout", meth_gettimeout},
{NULL, NULL}
};
/* socket options for setoption */
static t_opt optset[] = {
- {"dontroute", opt_set_dontroute},
- {"broadcast", opt_set_broadcast},
- {"reuseaddr", opt_set_reuseaddr},
- {"reuseport", opt_set_reuseport},
- {"ip-multicast-if", opt_set_ip_multicast_if},
- {"ip-multicast-ttl", opt_set_ip_multicast_ttl},
- {"ip-multicast-loop", opt_set_ip_multicast_loop},
- {"ip-add-membership", opt_set_ip_add_membership},
- {"ip-drop-membership", opt_set_ip_drop_membersip},
- {"ipv6-v6only", opt_set_ip6_v6only},
- {NULL, NULL}
+ {"dontroute", opt_set_dontroute},
+ {"broadcast", opt_set_broadcast},
+ {"reuseaddr", opt_set_reuseaddr},
+ {"reuseport", opt_set_reuseport},
+ {"ip-multicast-if", opt_set_ip_multicast_if},
+ {"ip-multicast-ttl", opt_set_ip_multicast_ttl},
+ {"ip-multicast-loop", opt_set_ip_multicast_loop},
+ {"ip-add-membership", opt_set_ip_add_membership},
+ {"ip-drop-membership", opt_set_ip_drop_membersip},
+ {"ipv6-unicast-hops", opt_set_ip6_unicast_hops},
+ {"ipv6-multicast-hops", opt_set_ip6_unicast_hops},
+ {"ipv6-multicast-loop", opt_set_ip6_multicast_loop},
+ {"ipv6-add-membership", opt_set_ip6_add_membership},
+ {"ipv6-drop-membership", opt_set_ip6_drop_membersip},
+ {"ipv6-v6only", opt_set_ip6_v6only},
+ {NULL, NULL}
};
/* socket options for getoption */
static t_opt optget[] = {
- {"ip-multicast-if", opt_get_ip_multicast_if},
- {"ip-multicast-loop", opt_get_ip_multicast_loop},
- {NULL, NULL}
+ {"dontroute", opt_get_dontroute},
+ {"broadcast", opt_get_broadcast},
+ {"reuseaddr", opt_get_reuseaddr},
+ {"reuseport", opt_get_reuseport},
+ {"ip-multicast-if", opt_get_ip_multicast_if},
+ {"ip-multicast-loop", opt_get_ip_multicast_loop},
+ {"error", opt_get_error},
+ {"ipv6-unicast-hops", opt_get_ip6_unicast_hops},
+ {"ipv6-multicast-hops", opt_get_ip6_unicast_hops},
+ {"ipv6-multicast-loop", opt_get_ip6_multicast_loop},
+ {"ipv6-v6only", opt_get_ip6_v6only},
+ {NULL, NULL}
};
/* functions in library namespace */
static luaL_Reg func[] = {
{"udp", global_create},
+ {"udp4", global_create4},
{"udp6", global_create6},
{NULL, NULL}
};
@@ -98,25 +118,28 @@ static luaL_Reg func[] = {
/*-------------------------------------------------------------------------*\
* Initializes module
\*-------------------------------------------------------------------------*/
-int udp_open(lua_State *L)
-{
+int udp_open(lua_State *L) {
/* create classes */
- auxiliar_newclass(L, "udp.connected", udp_methods);
- auxiliar_newclass(L, "udp.unconnected", udp_methods);
+ auxiliar_newclass(L, "udp{connected}", udp_methods);
+ auxiliar_newclass(L, "udp{unconnected}", udp_methods);
/* create class groups */
- auxiliar_add2group(L, "udp.connected", "udp{any}");
- auxiliar_add2group(L, "udp.unconnected", "udp{any}");
- auxiliar_add2group(L, "udp.connected", "select{able}");
- auxiliar_add2group(L, "udp.unconnected", "select{able}");
+ auxiliar_add2group(L, "udp{connected}", "udp{any}");
+ auxiliar_add2group(L, "udp{unconnected}", "udp{any}");
+ auxiliar_add2group(L, "udp{connected}", "select{able}");
+ auxiliar_add2group(L, "udp{unconnected}", "select{able}");
/* define library functions */
- luaL_openlib(L, NULL, func, 0);
+ luaL_setfuncs(L, func, 0);
+ /* export default UDP size */
+ lua_pushliteral(L, "_DATAGRAMSIZE");
+ lua_pushinteger(L, UDP_DATAGRAMSIZE);
+ lua_rawset(L, -3);
return 0;
}
/*=========================================================================*\
* Lua methods
\*=========================================================================*/
-const char *udp_strerror(int err) {
+static const char *udp_strerror(int err) {
/* a 'closed' error on an unconnected means the target address was not
* accepted by the transport layer */
if (err == IO_CLOSED) return "refused";
@@ -127,7 +150,7 @@ const char *udp_strerror(int err) {
* Send data through connected udp socket
\*-------------------------------------------------------------------------*/
static int meth_send(lua_State *L) {
- p_udp udp = (p_udp) auxiliar_checkclass(L, "udp.connected", 1);
+ p_udp udp = (p_udp) auxiliar_checkclass(L, "udp{connected}", 1);
p_timeout tm = &udp->tm;
size_t count, sent = 0;
int err;
@@ -147,43 +170,50 @@ static int meth_send(lua_State *L) {
* Send data through unconnected udp socket
\*-------------------------------------------------------------------------*/
static int meth_sendto(lua_State *L) {
- p_udp udp = (p_udp) auxiliar_checkclass(L, "udp.unconnected", 1);
+ p_udp udp = (p_udp) auxiliar_checkclass(L, "udp{unconnected}", 1);
size_t count, sent = 0;
const char *data = luaL_checklstring(L, 2, &count);
const char *ip = luaL_checkstring(L, 3);
- unsigned short port = (unsigned short) luaL_checknumber(L, 4);
+ const char *port = luaL_checkstring(L, 4);
p_timeout tm = &udp->tm;
int err;
- switch (udp->family) {
- case PF_INET: {
- struct sockaddr_in addr;
- memset(&addr, 0, sizeof(addr));
- if (!inet_pton(AF_INET, ip, &addr.sin_addr))
- luaL_argerror(L, 3, "invalid ip address");
- addr.sin_family = AF_INET;
- addr.sin_port = htons(port);
- timeout_markstart(tm);
- err = socket_sendto(&udp->sock, data, count, &sent,
- (SA *) &addr, sizeof(addr), tm);
- break;
- }
- case PF_INET6: {
- struct sockaddr_in6 addr;
- memset(&addr, 0, sizeof(addr));
- if (!inet_pton(AF_INET6, ip, &addr.sin6_addr))
- luaL_argerror(L, 3, "invalid ip address");
- addr.sin6_family = AF_INET6;
- addr.sin6_port = htons(port);
- timeout_markstart(tm);
- err = socket_sendto(&udp->sock, data, count, &sent,
- (SA *) &addr, sizeof(addr), tm);
- break;
- }
- default:
+ struct addrinfo aihint;
+ struct addrinfo *ai;
+ memset(&aihint, 0, sizeof(aihint));
+ aihint.ai_family = udp->family;
+ aihint.ai_socktype = SOCK_DGRAM;
+ aihint.ai_flags = AI_NUMERICHOST | AI_NUMERICSERV;
+ err = getaddrinfo(ip, port, &aihint, &ai);
+ if (err) {
+ lua_pushnil(L);
+ lua_pushstring(L, gai_strerror(err));
+ return 2;
+ }
+
+ /* create socket if on first sendto if AF_UNSPEC was set */
+ if (udp->family == AF_UNSPEC && udp->sock == SOCKET_INVALID) {
+ struct addrinfo *ap;
+ const char *errstr = NULL;
+ for (ap = ai; ap != NULL; ap = ap->ai_next) {
+ errstr = inet_trycreate(&udp->sock, ap->ai_family, SOCK_DGRAM, 0);
+ if (errstr == NULL) {
+ socket_setnonblocking(&udp->sock);
+ udp->family = ap->ai_family;
+ break;
+ }
+ }
+ if (errstr != NULL) {
lua_pushnil(L);
- lua_pushfstring(L, "unknown family %d", udp->family);
+ lua_pushstring(L, errstr);
+ freeaddrinfo(ai);
return 2;
+ }
}
+
+ timeout_markstart(tm);
+ err = socket_sendto(&udp->sock, data, count, &sent, ai->ai_addr,
+ (socklen_t) ai->ai_addrlen, tm);
+ freeaddrinfo(ai);
if (err != IO_DONE) {
lua_pushnil(L);
lua_pushstring(L, udp_strerror(err));
@@ -198,22 +228,27 @@ static int meth_sendto(lua_State *L) {
\*-------------------------------------------------------------------------*/
static int meth_receive(lua_State *L) {
p_udp udp = (p_udp) auxiliar_checkgroup(L, "udp{any}", 1);
- char buffer[UDP_DATAGRAMSIZE];
- size_t got, count = (size_t) luaL_optnumber(L, 2, sizeof(buffer));
+ char buf[UDP_DATAGRAMSIZE];
+ size_t got, wanted = (size_t) luaL_optnumber(L, 2, sizeof(buf));
+ char *dgram = wanted > sizeof(buf)? (char *) malloc(wanted): buf;
int err;
p_timeout tm = &udp->tm;
- count = MIN(count, sizeof(buffer));
timeout_markstart(tm);
- err = socket_recv(&udp->sock, buffer, count, &got, tm);
+ if (!dgram) {
+ lua_pushnil(L);
+ lua_pushliteral(L, "out of memory");
+ return 2;
+ }
+ err = socket_recv(&udp->sock, dgram, wanted, &got, tm);
/* Unlike TCP, recv() of zero is not closed, but a zero-length packet. */
- if (err == IO_CLOSED)
- err = IO_DONE;
- if (err != IO_DONE) {
+ if (err != IO_DONE && err != IO_CLOSED) {
lua_pushnil(L);
lua_pushstring(L, udp_strerror(err));
+ if (wanted > sizeof(buf)) free(dgram);
return 2;
}
- lua_pushlstring(L, buffer, got);
+ lua_pushlstring(L, dgram, got);
+ if (wanted > sizeof(buf)) free(dgram);
return 1;
}
@@ -221,77 +256,52 @@ static int meth_receive(lua_State *L) {
* Receives data and sender from a UDP socket
\*-------------------------------------------------------------------------*/
static int meth_receivefrom(lua_State *L) {
- p_udp udp = (p_udp) auxiliar_checkclass(L, "udp.unconnected", 1);
- char buffer[UDP_DATAGRAMSIZE];
- size_t got, count = (size_t) luaL_optnumber(L, 2, sizeof(buffer));
+ p_udp udp = (p_udp) auxiliar_checkclass(L, "udp{unconnected}", 1);
+ char buf[UDP_DATAGRAMSIZE];
+ size_t got, wanted = (size_t) luaL_optnumber(L, 2, sizeof(buf));
+ char *dgram = wanted > sizeof(buf)? (char *) malloc(wanted): buf;
+ struct sockaddr_storage addr;
+ socklen_t addr_len = sizeof(addr);
+ char addrstr[INET6_ADDRSTRLEN];
+ char portstr[6];
int err;
p_timeout tm = &udp->tm;
timeout_markstart(tm);
- count = MIN(count, sizeof(buffer));
- switch (udp->family) {
- case PF_INET: {
- struct sockaddr_in addr;
- socklen_t addr_len = sizeof(addr);
- err = socket_recvfrom(&udp->sock, buffer, count, &got,
- (SA *) &addr, &addr_len, tm);
- /* Unlike TCP, recv() of zero is not closed, but a zero-length packet. */
- if (err == IO_CLOSED)
- err = IO_DONE;
- if (err == IO_DONE) {
- char addrstr[INET_ADDRSTRLEN];
- lua_pushlstring(L, buffer, got);
- if (!inet_ntop(AF_INET, &addr.sin_addr,
- addrstr, sizeof(addrstr))) {
- lua_pushnil(L);
- lua_pushstring(L, "invalid source address");
- return 2;
- }
- lua_pushstring(L, addrstr);
- lua_pushnumber(L, ntohs(addr.sin_port));
- return 3;
- }
- break;
- }
- case PF_INET6: {
- struct sockaddr_in6 addr;
- socklen_t addr_len = sizeof(addr);
- err = socket_recvfrom(&udp->sock, buffer, count, &got,
- (SA *) &addr, &addr_len, tm);
- /* Unlike TCP, recv() of zero is not closed, but a zero-length packet. */
- if (err == IO_CLOSED)
- err = IO_DONE;
- if (err == IO_DONE) {
- char addrstr[INET6_ADDRSTRLEN];
- lua_pushlstring(L, buffer, got);
- if (!inet_ntop(AF_INET6, &addr.sin6_addr,
- addrstr, sizeof(addrstr))) {
- lua_pushnil(L);
- lua_pushstring(L, "invalid source address");
- return 2;
- }
- lua_pushstring(L, addrstr);
- lua_pushnumber(L, ntohs(addr.sin6_port));
- return 3;
- }
- break;
- }
- default:
+ if (!dgram) {
+ lua_pushnil(L);
+ lua_pushliteral(L, "out of memory");
+ return 2;
+ }
+ err = socket_recvfrom(&udp->sock, dgram, wanted, &got, (SA *) &addr,
+ &addr_len, tm);
+ /* Unlike TCP, recv() of zero is not closed, but a zero-length packet. */
+ if (err != IO_DONE && err != IO_CLOSED) {
+ lua_pushnil(L);
+ lua_pushstring(L, udp_strerror(err));
+ if (wanted > sizeof(buf)) free(dgram);
+ return 2;
+ }
+ err = getnameinfo((struct sockaddr *)&addr, addr_len, addrstr,
+ INET6_ADDRSTRLEN, portstr, 6, NI_NUMERICHOST | NI_NUMERICSERV);
+ if (err) {
lua_pushnil(L);
- lua_pushfstring(L, "unknown family %d", udp->family);
+ lua_pushstring(L, gai_strerror(err));
+ if (wanted > sizeof(buf)) free(dgram);
return 2;
}
- lua_pushnil(L);
- lua_pushstring(L, udp_strerror(err));
- return 2;
+ lua_pushlstring(L, dgram, got);
+ lua_pushstring(L, addrstr);
+ lua_pushinteger(L, (int) strtol(portstr, (char **) NULL, 10));
+ if (wanted > sizeof(buf)) free(dgram);
+ return 3;
}
/*-------------------------------------------------------------------------*\
* Returns family as string
\*-------------------------------------------------------------------------*/
-static int meth_getfamily(lua_State *L)
-{
+static int meth_getfamily(lua_State *L) {
p_udp udp = (p_udp) auxiliar_checkgroup(L, "udp{any}", 1);
- if (udp->family == PF_INET6) {
+ if (udp->family == AF_INET6) {
lua_pushliteral(L, "inet6");
return 1;
} else {
@@ -327,7 +337,7 @@ static int meth_dirty(lua_State *L) {
* Just call inet methods
\*-------------------------------------------------------------------------*/
static int meth_getpeername(lua_State *L) {
- p_udp udp = (p_udp) auxiliar_checkclass(L, "udp.connected", 1);
+ p_udp udp = (p_udp) auxiliar_checkclass(L, "udp{connected}", 1);
return inet_meth_getpeername(L, &udp->sock, udp->family);
}
@@ -360,6 +370,11 @@ static int meth_settimeout(lua_State *L) {
return timeout_meth_settimeout(L, &udp->tm);
}
+static int meth_gettimeout(lua_State *L) {
+ p_udp udp = (p_udp) auxiliar_checkgroup(L, "udp{any}", 1);
+ return timeout_meth_gettimeout(L, &udp->tm);
+}
+
/*-------------------------------------------------------------------------*\
* Turns a master udp object into a client object.
\*-------------------------------------------------------------------------*/
@@ -376,20 +391,20 @@ static int meth_setpeername(lua_State *L) {
/* make sure we try to connect only to the same family */
connecthints.ai_family = udp->family;
if (connecting) {
- err = inet_tryconnect(&udp->sock, address, port, tm, &connecthints);
+ err = inet_tryconnect(&udp->sock, &udp->family, address,
+ port, tm, &connecthints);
if (err) {
lua_pushnil(L);
lua_pushstring(L, err);
return 2;
}
- auxiliar_setclass(L, "udp.connected", 1);
+ auxiliar_setclass(L, "udp{connected}", 1);
} else {
/* we ignore possible errors because Mac OS X always
* returns EAFNOSUPPORT */
inet_trydisconnect(&udp->sock, udp->family, tm);
- auxiliar_setclass(L, "udp.unconnected", 1);
+ auxiliar_setclass(L, "udp{unconnected}", 1);
}
- /* change class to connected or unconnected depending on address */
lua_pushnumber(L, 1);
return 1;
}
@@ -408,16 +423,16 @@ static int meth_close(lua_State *L) {
* Turns a master object into a server object
\*-------------------------------------------------------------------------*/
static int meth_setsockname(lua_State *L) {
- p_udp udp = (p_udp) auxiliar_checkclass(L, "udp.unconnected", 1);
+ p_udp udp = (p_udp) auxiliar_checkclass(L, "udp{unconnected}", 1);
const char *address = luaL_checkstring(L, 2);
const char *port = luaL_checkstring(L, 3);
const char *err;
- struct addrinfo bindhints;
+ struct addrinfo bindhints;
memset(&bindhints, 0, sizeof(bindhints));
bindhints.ai_socktype = SOCK_DGRAM;
bindhints.ai_family = udp->family;
bindhints.ai_flags = AI_PASSIVE;
- err = inet_trybind(&udp->sock, address, port, &bindhints);
+ err = inet_trybind(&udp->sock, &udp->family, address, port, &bindhints);
if (err) {
lua_pushnil(L);
lua_pushstring(L, err);
@@ -434,35 +449,35 @@ static int meth_setsockname(lua_State *L) {
* Creates a master udp object
\*-------------------------------------------------------------------------*/
static int udp_create(lua_State *L, int family) {
- t_socket sock;
- const char *err = inet_trycreate(&sock, family, SOCK_DGRAM);
- /* try to allocate a system socket */
- if (!err) {
- /* allocate udp object */
- p_udp udp = (p_udp) lua_newuserdata(L, sizeof(t_udp));
- auxiliar_setclass(L, "udp.unconnected", -1);
- /* initialize remaining structure fields */
- socket_setnonblocking(&sock);
- if (family == PF_INET6) {
- int yes = 1;
- setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY,
- (void *)&yes, sizeof(yes));
+ /* allocate udp object */
+ p_udp udp = (p_udp) lua_newuserdata(L, sizeof(t_udp));
+ auxiliar_setclass(L, "udp{unconnected}", -1);
+ /* if family is AF_UNSPEC, we leave the socket invalid and
+ * store AF_UNSPEC into family. This will allow it to later be
+ * replaced with an AF_INET6 or AF_INET socket upon first use. */
+ udp->sock = SOCKET_INVALID;
+ timeout_init(&udp->tm, -1, -1);
+ udp->family = family;
+ if (family != AF_UNSPEC) {
+ const char *err = inet_trycreate(&udp->sock, family, SOCK_DGRAM, 0);
+ if (err != NULL) {
+ lua_pushnil(L);
+ lua_pushstring(L, err);
+ return 2;
}
- udp->sock = sock;
- timeout_init(&udp->tm, -1, -1);
- udp->family = family;
- return 1;
- } else {
- lua_pushnil(L);
- lua_pushstring(L, err);
- return 2;
+ socket_setnonblocking(&udp->sock);
}
+ return 1;
}
static int global_create(lua_State *L) {
- return udp_create(L, AF_INET);
+ return udp_create(L, AF_UNSPEC);
+}
+
+static int global_create4(lua_State *L) {
+ return udp_create(L, AF_INET);
}
static int global_create6(lua_State *L) {
- return udp_create(L, AF_INET6);
+ return udp_create(L, AF_INET6);
}