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Handle failed strdup and malloc.
* src/remote_internal.c: Don't dereference NULL after failed strdup or malloc in doRemoteOpen.
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@ -1,3 +1,9 @@
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Wed Nov 14 17:28:31 CET 2007 Jim Meyering <meyering@redhat.com>
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Handle failed strdup and malloc.
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* src/remote_internal.c: Don't dereference NULL after
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failed strdup or malloc in doRemoteOpen.
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Wed Nov 14 11:55:00 UTC 2007 Richard W.M. Jones <rjones@redhat.com>
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* src/stats_linux.c, src/stats_linux.h, src_xen_internal.c:
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@ -515,6 +515,10 @@ doRemoteOpen (virConnectPtr conn, struct private_data *priv,
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sockname = strdup (LIBVIRTD_PRIV_UNIX_SOCKET_RO);
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else
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sockname = strdup (LIBVIRTD_PRIV_UNIX_SOCKET);
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if (sockname == NULL) {
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error (NULL, VIR_ERR_SYSTEM_ERROR, strerror (errno));
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goto failed;
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}
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}
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}
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@ -569,10 +573,19 @@ doRemoteOpen (virConnectPtr conn, struct private_data *priv,
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if (no_tty) nr_args += 5; /* For -T -o BatchMode=yes -e none */
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command = command ? : strdup ("ssh");
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if (command == NULL) {
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error (NULL, VIR_ERR_SYSTEM_ERROR, strerror (errno));
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goto failed;
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}
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// Generate the final command argv[] array.
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// ssh -p $port [-l $username] $hostname $netcat -U $sockname [NULL]
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cmd_argv = malloc (nr_args * sizeof (char *));
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if (cmd_argv == NULL) {
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error (NULL, VIR_ERR_SYSTEM_ERROR, strerror (errno));
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goto failed;
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}
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j = 0;
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cmd_argv[j++] = strdup (command);
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cmd_argv[j++] = strdup ("-p");
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@ -594,6 +607,11 @@ doRemoteOpen (virConnectPtr conn, struct private_data *priv,
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cmd_argv[j++] = strdup (sockname ? sockname : LIBVIRTD_PRIV_UNIX_SOCKET);
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cmd_argv[j++] = 0;
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assert (j == nr_args);
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for (j = 0; j < nr_args; j++)
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if (cmd_argv[j] == NULL) {
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error (NULL, VIR_ERR_SYSTEM_ERROR, strerror (ENOMEM));
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goto failed;
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}
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}
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/*FALLTHROUGH*/
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@ -626,6 +644,10 @@ doRemoteOpen (virConnectPtr conn, struct private_data *priv,
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// Run the external process.
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if (!cmd_argv) {
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cmd_argv = malloc (2 * sizeof (char *));
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if (cmd_argv == NULL) {
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error (NULL, VIR_ERR_SYSTEM_ERROR, strerror (errno));
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goto failed;
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}
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cmd_argv[0] = command;
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cmd_argv[1] = 0;
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}
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