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Don't crash with a zero-length argument to setb, from J Raynor.
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@ -56,6 +56,9 @@ cmd_set_buffer_exec(struct cmd *self, struct cmd_q *cmdq)
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pb = NULL;
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buffer = -1;
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if ((newsize = strlen(args->argv[0])) == 0)
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return (CMD_RETURN_NORMAL);
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if (args_has(args, 'b')) {
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buffer = args_strtonum(args, 'b', 0, INT_MAX, &cause);
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if (cause != NULL) {
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@ -80,8 +83,6 @@ cmd_set_buffer_exec(struct cmd *self, struct cmd_q *cmdq)
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memcpy(pdata, pb->data, psize);
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}
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newsize = strlen(args->argv[0]);
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pdata = xrealloc(pdata, 1, psize + newsize);
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memcpy(pdata + psize, args->argv[0], newsize);
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psize += newsize;
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