db/strvec.c

   1 /*
   2  * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms of version 2 of the GNU General Public License as
   6  * published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it would be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  11  *
  12  * Further, this software is distributed without any warranty that it is
  13  * free of the rightful claim of any third person regarding infringement
  14  * or the like.  Any license provided herein, whether implied or
  15  * otherwise, applies only to this software file.  Patent licenses, if
  16  * any, provided herein do not apply to combinations of this program with
  17  * other software, or any other product whatsoever.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write the Free Software Foundation, Inc., 59
  21  * Temple Place - Suite 330, Boston MA 02111-1307, USA.
  22  *
  23  * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
  24  * Mountain View, CA  94043, or:
  25  *
  26  * http://www.sgi.com
  27  *
  28  * For further information regarding this notice, see:
  29  *
  30  * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
  31  */
  32
  33 #include <libxfs.h>
  34 #include "strvec.h"
  35 #include "output.h"
  36 #include "malloc.h"
  37
  38 static int      count_strvec(char **vec);
  39
  40 void
  41 add_strvec(
  42         char    ***vecp,
  43         char    *str)
  44 {
  45         char    *dup;
  46         int     i;
  47         char    **vec;
  48
  49         dup = xstrdup(str);
  50         vec = *vecp;
  51         i = count_strvec(vec);
  52         vec = xrealloc(vec, sizeof(*vec) * (i + 2));
  53         vec[i] = dup;
  54         vec[i + 1] = NULL;
  55         *vecp = vec;
  56 }
  57
  58 char **
  59 copy_strvec(
  60         char    **vec)
  61 {
  62         int     i;
  63         char    **rval;
  64
  65         i = count_strvec(vec);
  66         rval = new_strvec(i);
  67         for (i = 0; vec[i] != NULL; i++)
  68                 rval[i] = xstrdup(vec[i]);
  69         return rval;
  70 }
  71
  72 static int
  73 count_strvec(
  74         char    **vec)
  75 {
  76         int     i;
  77
  78         for (i = 0; vec[i] != NULL; i++)
  79                 continue;
  80         return i;
  81 }
  82
  83 void
  84 free_strvec(
  85         char    **vec)
  86 {
  87         int     i;
  88
  89         for (i = 0; vec[i] != NULL; i++)
  90                 xfree(vec[i]);
  91         xfree(vec);
  92 }
  93
  94 char **
  95 new_strvec(
  96         int     count)
  97 {
  98         char    **rval;
  99
 100         rval = xmalloc(sizeof(*rval) * (count + 1));
 101         rval[count] = NULL;
 102         return rval;
 103 }
 104
 105 void
 106 print_strvec(
 107         char    **vec)
 108 {
 109         int     i;
 110
 111         for (i = 0; vec[i] != NULL; i++)
 112                 dbprintf("%s", vec[i]);
 113 }