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- Simplify the code 

- Reword the comment.
This commit is contained in:
enami 2010-11-02 03:44:05 +00:00
parent 4e6c889e19
commit b447d18264
1 changed files with 5 additions and 5 deletions
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10
lib/libc/stdlib/getenv.c
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@ -1,4 +1,4 @@
/* $NetBSD: getenv.c,v 1.27 2010/11/01 02:41:27 enami Exp $ */ /* $NetBSD: getenv.c,v 1.28 2010/11/02 03:44:05 enami Exp $ */
/* /*
* Copyright (c) 1987, 1993 * Copyright (c) 1987, 1993
@ -34,7 +34,7 @@
#if 0 #if 0
static char sccsid[] = "@(#)getenv.c 8.1 (Berkeley) 6/4/93"; static char sccsid[] = "@(#)getenv.c 8.1 (Berkeley) 6/4/93";
#else #else
__RCSID("$NetBSD: getenv.c,v 1.27 2010/11/01 02:41:27 enami Exp $"); __RCSID("$NetBSD: getenv.c,v 1.28 2010/11/02 03:44:05 enami Exp $");
#endif #endif
#endif /* LIBC_SCCS and not lint */ #endif /* LIBC_SCCS and not lint */
@ -119,10 +119,10 @@ __allocenv(int offset)
if (required_len <= environ_malloced_len && saveenv == environ) if (required_len <= environ_malloced_len && saveenv == environ)
return 0; return 0;
/* Make sure we at least double the size of the arrays. */ /* Double the size of the arrays until we meet the requirement. */
new_len = environ_malloced_len >= 16 ? environ_malloced_len : 16; new_len = environ_malloced_len ? environ_malloced_len : 16;
while (new_len < required_len) while (new_len < required_len)
new_len = new_len << 1; new_len <<= 1;
if (saveenv == environ) { /* just increase size */ if (saveenv == environ) { /* just increase size */
if ((p = realloc(saveenv, new_len * sizeof(*p))) == NULL) if ((p = realloc(saveenv, new_len * sizeof(*p))) == NULL)