|  | varnish-cache/lib/libvarnish/vin.c | 
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  /*-  | 
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   * Copyright (c) 2007-2010 Varnish Software AS  | 
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   * All rights reserved.  | 
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   *  | 
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   * Author: Dag-Erling Smørgrav <des@des.no>  | 
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   *  | 
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   * SPDX-License-Identifier: BSD-2-Clause  | 
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   *  | 
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   * Redistribution and use in source and binary forms, with or without  | 
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   * modification, are permitted provided that the following conditions  | 
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   * are met:  | 
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   * 1. Redistributions of source code must retain the above copyright  | 
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   *    notice, this list of conditions and the following disclaimer.  | 
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   * 2. Redistributions in binary form must reproduce the above copyright  | 
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   *    notice, this list of conditions and the following disclaimer in the  | 
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   *    documentation and/or other materials provided with the distribution.  | 
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   *  | 
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   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND  | 
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   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE  | 
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   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE  | 
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   * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE  | 
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   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL  | 
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   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS  | 
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   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)  | 
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   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT  | 
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   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY  | 
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   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF  | 
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   * SUCH DAMAGE.  | 
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   *  | 
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   * NB: also used in libvarnishapi  | 
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   */  | 
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  #include "config.h"  | 
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  #include <stdio.h>  | 
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  #include <stdlib.h>  | 
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  #include <string.h>  | 
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  #include "vdef.h"  | 
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  #include "vas.h"  | 
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  #include "vin.h"  | 
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  #include "vsb.h"  | 
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  #define VARNISH_DEFAULT_REL_NAME "varnishd"  | 
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  char *  | 
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  VIN_n_Arg(const char *n_arg)  | 
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  { | 
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          struct vsb *vsb;  | 
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          char *retval;  | 
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   | 
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          vsb = VSB_new_auto();  | 
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          AN(vsb);  | 
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          if (n_arg == NULL || n_arg[0] == '\0') { | 
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                  VSB_cat(vsb, VARNISH_STATE_DIR);  | 
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                  VSB_cat(vsb, "/" VARNISH_DEFAULT_REL_NAME);  | 
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          } else if (n_arg[0] == '/') { | 
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                  VSB_cat(vsb, n_arg);  | 
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          } else { | 
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                  VSB_cat(vsb, VARNISH_STATE_DIR);  | 
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                  VSB_cat(vsb, "/");  | 
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                  VSB_cat(vsb, n_arg);  | 
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          }  | 
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          AZ(VSB_finish(vsb));  | 
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          retval = strdup(VSB_data(vsb));  | 
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          VSB_destroy(&vsb);  | 
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          return (retval);  | 
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  }  | 
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  void  | 
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  VIN_DumpDefaults(void)  | 
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  { | 
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          printf("  The default is taken from the ``VARNISH_DEFAULT_N`` " | 
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                 "environment variable.\n\n");  | 
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          printf("  Relative paths will be appended to ``%s``.\n\n", | 
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                 VARNISH_STATE_DIR);  | 
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          printf("  If neither ``VARNISH_DEFAULT_N`` nor ``-n`` are " | 
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                 "present, the value is ``%s``.\n\n",  | 
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                 VARNISH_STATE_DIR "/" VARNISH_DEFAULT_REL_NAME);  | 
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          printf("  Note: These defaults may be distribution specific.\n\n"); | 
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  }  |