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src/unixdgram.c: allow connect() and bind() on freebsd without dummy char, and simplify calculations

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This commit is contained in:
E. Westbrook 2019-02-19 04:51:23 -07:00
parent 288219fd6b
commit 531012df1a
1 changed files with 6 additions and 15 deletions
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21
src/unixdgram.c
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@ -261,20 +261,15 @@ static int meth_dirty(lua_State *L) {
static const char *unixdgram_trybind(p_unix un, const char *path) { static const char *unixdgram_trybind(p_unix un, const char *path) {
struct sockaddr_un local; struct sockaddr_un local;
size_t len = strlen(path); size_t len = strlen(path);
int err;
if (len >= sizeof(local.sun_path)) return "path too long"; if (len >= sizeof(local.sun_path)) return "path too long";
memset(&local, 0, sizeof(local)); memset(&local, 0, sizeof(local));
strcpy(local.sun_path, path); strcpy(local.sun_path, path);
local.sun_family = AF_UNIX; local.sun_family = AF_UNIX;
size_t addrlen = sizeof(local) - sizeof(local.sun_path) + len;
#ifdef UNIX_HAS_SUN_LEN #ifdef UNIX_HAS_SUN_LEN
local.sun_len = sizeof(local.sun_family) + sizeof(local.sun_len) local.sun_len = addrlen + 1;
+ len + 1;
err = socket_bind(&un->sock, (SA *) &local, local.sun_len);
#else
err = socket_bind(&un->sock, (SA *) &local,
sizeof(local.sun_family) + len);
#endif #endif
int err = socket_bind(&un->sock, (SA *) &local, addrlen);
if (err != IO_DONE) socket_destroy(&un->sock); if (err != IO_DONE) socket_destroy(&un->sock);
return socket_strerror(err); return socket_strerror(err);
} }
@ -315,21 +310,17 @@ static int meth_getsockname(lua_State *L)
static const char *unixdgram_tryconnect(p_unix un, const char *path) static const char *unixdgram_tryconnect(p_unix un, const char *path)
{ {
struct sockaddr_un remote; struct sockaddr_un remote;
int err;
size_t len = strlen(path); size_t len = strlen(path);
if (len >= sizeof(remote.sun_path)) return "path too long"; if (len >= sizeof(remote.sun_path)) return "path too long";
memset(&remote, 0, sizeof(remote)); memset(&remote, 0, sizeof(remote));
strcpy(remote.sun_path, path); strcpy(remote.sun_path, path);
remote.sun_family = AF_UNIX; remote.sun_family = AF_UNIX;
timeout_markstart(&un->tm); timeout_markstart(&un->tm);
size_t addrlen = sizeof(remote) - sizeof(remote.sun_path) + len;
#ifdef UNIX_HAS_SUN_LEN #ifdef UNIX_HAS_SUN_LEN
remote.sun_len = sizeof(remote.sun_family) + sizeof(remote.sun_len) remote.sun_len = addrlen + 1;
+ len + 1;
err = socket_connect(&un->sock, (SA *) &remote, remote.sun_len, &un->tm);
#else
err = socket_connect(&un->sock, (SA *) &remote,
sizeof(remote.sun_family) + len, &un->tm);
#endif #endif
int err = socket_connect(&un->sock, (SA *) &remote, addrlen, &un->tm);
if (err != IO_DONE) socket_destroy(&un->sock); if (err != IO_DONE) socket_destroy(&un->sock);
return socket_strerror(err); return socket_strerror(err);
} }