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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [argz/] [envz_strip.c] - Blame information for rev 258

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Line No. Rev Author Line
1 207 jeremybenn
/* Copyright (C) 2002 by  Red Hat, Incorporated. All rights reserved.
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 *
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 * Permission to use, copy, modify, and distribute this software
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 * is freely granted, provided that this notice is preserved.
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 */
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#include <errno.h>
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#include <sys/types.h>
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#include <string.h>
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#include <stdlib.h>
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#include <argz.h>
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#include <envz.h>
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void
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_DEFUN (envz_strip, (envz, envz_len),
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       char **envz _AND
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       size_t *envz_len)
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{
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  char *entry = 0;
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  int len = 0;
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  int null_found = 0;
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  while((entry = argz_next(*envz, *envz_len, entry)))
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    {
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      if(!strchr(entry, '='))
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        {
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          null_found = 1;
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          len = strlen(entry) + 1;
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          /* Make sure this is not the last entry in envz. If it is, it
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           will be chopped off by the realloc anyway.*/
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          if(*envz + *envz_len != entry + len - 1)
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            {
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              memmove(entry, entry + len, *envz + *envz_len - entry - len);
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            }
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          *envz_len -= len;
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        }
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    }
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  if(null_found)
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    {
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      *envz = (char *)realloc(*envz, *envz_len);
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    }
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}

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