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diff -up openssh-5.3p1/channels.c.bz595935 openssh-5.3p1/channels.c
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--- openssh-5.3p1/channels.c.bz595935 2010-08-12 14:19:28.000000000 +0200
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+++ openssh-5.3p1/channels.c 2010-08-12 14:33:51.000000000 +0200
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@@ -3185,7 +3185,7 @@ x11_create_display_inet(int x11_display_
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}
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static int
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-connect_local_xsocket_path(const char *pathname)
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+connect_local_xsocket_path(const char *pathname, int len)
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{
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int sock;
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struct sockaddr_un addr;
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@@ -3195,11 +3195,14 @@ connect_local_xsocket_path(const char *p
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error("socket: %.100s", strerror(errno));
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memset(&addr, 0, sizeof(addr));
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addr.sun_family = AF_UNIX;
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- strlcpy(addr.sun_path, pathname, sizeof addr.sun_path);
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- if (connect(sock, (struct sockaddr *)&addr, sizeof(addr)) == 0)
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+ if (len <= 0)
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+ return -1;
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+ if (len > sizeof addr.sun_path)
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+ len = sizeof addr.sun_path;
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+ memcpy(addr.sun_path, pathname, len);
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+ if (connect(sock, (struct sockaddr *)&addr, sizeof addr - (sizeof addr.sun_path - len) ) == 0)
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return sock;
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close(sock);
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- error("connect %.100s: %.100s", addr.sun_path, strerror(errno));
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return -1;
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}
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@@ -3207,8 +3210,21 @@ static int
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connect_local_xsocket(u_int dnr)
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{
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char buf[1024];
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- snprintf(buf, sizeof buf, _PATH_UNIX_X, dnr);
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- return connect_local_xsocket_path(buf);
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+ int len;
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+#ifdef linux
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+ int ret;
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+#endif
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+ len = snprintf(buf + 1, sizeof (buf) - 1, _PATH_UNIX_X, dnr);
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+#ifdef linux
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+ /* try abstract socket first */
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+ buf[0] = '\0';
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+ if ((ret = connect_local_xsocket_path(buf, len + 1)) >= 0)
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+ return ret;
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+#endif
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+ if ((ret = connect_local_xsocket_path(buf + 1, len)) >= 0)
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+ return ret;
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+ error("connect %.100s: %.100s", buf + 1, strerror(errno));
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+ return -1;
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}
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int
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