43 lines
1.0 KiB
C
43 lines
1.0 KiB
C
/* 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,
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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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