diff --git a/channels.c b/channels.c --- a/channels.c (revision 8241b9c0529228b4b86d88b1a6076fb9f97e4a99) +++ b/channels.c (date 1703026069921) @@ -5075,11 +5075,13 @@ } static int -connect_local_xsocket_path(const char *pathname) +connect_local_xsocket_path(const char *pathname, int len) { int sock; struct sockaddr_un addr; + if (len <= 0) + return -1; sock = socket(AF_UNIX, SOCK_STREAM, 0); if (sock == -1) { error("socket: %.100s", strerror(errno)); @@ -5087,11 +5089,12 @@ } memset(&addr, 0, sizeof(addr)); addr.sun_family = AF_UNIX; - strlcpy(addr.sun_path, pathname, sizeof addr.sun_path); - if (connect(sock, (struct sockaddr *)&addr, sizeof(addr)) == 0) + if (len > sizeof addr.sun_path) + len = sizeof addr.sun_path; + memcpy(addr.sun_path, pathname, len); + if (connect(sock, (struct sockaddr *)&addr, sizeof addr - (sizeof addr.sun_path - len) ) == 0) return sock; close(sock); - error("connect %.100s: %.100s", addr.sun_path, strerror(errno)); return -1; } @@ -5099,8 +5102,18 @@ connect_local_xsocket(u_int dnr) { char buf[1024]; - snprintf(buf, sizeof buf, _PATH_UNIX_X, dnr); - return connect_local_xsocket_path(buf); + int len, ret; + len = snprintf(buf + 1, sizeof (buf) - 1, _PATH_UNIX_X, dnr); +#ifdef linux + /* try abstract socket first */ + buf[0] = '\0'; + if ((ret = connect_local_xsocket_path(buf, len + 1)) >= 0) + return ret; +#endif + if ((ret = connect_local_xsocket_path(buf + 1, len)) >= 0) + return ret; + error("connect %.100s: %.100s", buf + 1, strerror(errno)); + return -1; } #ifdef __APPLE__