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make sure we preserve errno.

This commit is contained in:
christos 2000-11-29 15:30:20 +00:00
parent e8048693f8
commit 2a213d0e9a
1 changed files with 6 additions and 4 deletions
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10
lib/libc/stdio/fopen.c
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@ -1,4 +1,4 @@
/* $NetBSD: fopen.c,v 1.9 2000/01/15 01:11:45 christos Exp $ */
/* $NetBSD: fopen.c,v 1.10 2000/11/29 15:30:20 christos Exp $ */
/*-
* Copyright (c) 1990, 1993
@ -41,7 +41,7 @@
#if 0
static char sccsid[] = "@(#)fopen.c 8.1 (Berkeley) 6/4/93";
#else
__RCSID("$NetBSD: fopen.c,v 1.9 2000/01/15 01:11:45 christos Exp $");
__RCSID("$NetBSD: fopen.c,v 1.10 2000/11/29 15:30:20 christos Exp $");
#endif
#endif /* LIBC_SCCS and not lint */
@ -73,12 +73,14 @@ fopen(file, mode)
if (oflags & O_NONBLOCK) {
struct stat st;
if (fstat(f, &st) == -1) {
close(f);
int sverrno = errno;
(void)close(f);
errno = sverrno;
goto release;
}
if (!S_ISREG(st.st_mode)) {
(void)close(f);
errno = EFTYPE;
close(f);
goto release;
}
}