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be more conservative about allocing.

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This commit is contained in:
christos 2010-09-25 19:31:51 +00:00
parent ed5e497e60
commit 0588f13b3b
1 changed files with 6 additions and 6 deletions
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12
lib/libc/stdlib/getenv.c
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@ -1,4 +1,4 @@
/* $NetBSD: getenv.c,v 1.21 2010/09/25 18:11:40 tron Exp $ */
/* $NetBSD: getenv.c,v 1.22 2010/09/25 19:31:51 christos Exp $ */
/*
* Copyright (c) 1987, 1993
@ -34,7 +34,7 @@
#if 0
static char sccsid[] = "@(#)getenv.c 8.1 (Berkeley) 6/4/93";
#else
__RCSID("$NetBSD: getenv.c,v 1.21 2010/09/25 18:11:40 tron Exp $");
__RCSID("$NetBSD: getenv.c,v 1.22 2010/09/25 19:31:51 christos Exp $");
#endif
#endif /* LIBC_SCCS and not lint */
@ -112,16 +112,16 @@ __allocenv(int offset)
offset++;
}
if ((size_t)offset < environ_malloced_len)
nl = offset + 2; /* one for potentially new entry one for NULL */
if (nl < environ_malloced_len)
return 0;
nl = offset + 2;
p = realloc(__environ_malloced, nl * sizeof(char *));
p = realloc(__environ_malloced, nl * sizeof(*p));
if (p == NULL)
return -1;
(void)memset(&p[environ_malloced_len], 0,
(nl - environ_malloced_len) * sizeof(char *));
(nl - environ_malloced_len) * sizeof(*p));
environ_malloced_len = nl;
__environ_malloced = p;