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Sync OpenBSD patchset 749:
Do not allow duplicate session names to be created, reported by Dominik Honnef, patch from Thomas Adam.
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@ -1,4 +1,4 @@
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/* $Id: cmd-rename-session.c,v 1.19 2009-11-14 17:56:39 tcunha Exp $ */
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/* $Id: cmd-rename-session.c,v 1.20 2010-08-11 22:19:03 tcunha Exp $ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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@ -45,6 +45,11 @@ cmd_rename_session_exec(struct cmd *self, struct cmd_ctx *ctx)
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struct cmd_target_data *data = self->data;
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struct session *s;
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if (data->arg != NULL && session_find(data->arg) != NULL) {
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ctx->error(ctx, "duplicate session: %s", data->arg);
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return (-1);
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}
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if ((s = cmd_find_session(ctx, data->target)) == NULL)
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return (-1);
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