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authorPhilip Guenther <guenther@cvs.openbsd.org>2015-09-12 14:48:15 +0000
committerPhilip Guenther <guenther@cvs.openbsd.org>2015-09-12 14:48:15 +0000
commit708d74d49280694cfab20a17028e578ec48fe52f (patch)
tree599f4e398b85e2b12c4b420b04c47a826c34f3e9 /lib
parent2a59fd816d03d6c262dc9b4eeec61b4668ecb126 (diff)
Wrap <getopt.h> to make the functions weak and make access to the initialized
variables go direct. (Common variables cannot be aliased.)
Diffstat (limited to 'lib')
-rw-r--r--lib/libc/hidden/getopt.h37
-rw-r--r--lib/libc/stdlib/getopt_long.c7
2 files changed, 43 insertions, 1 deletions
diff --git a/lib/libc/hidden/getopt.h b/lib/libc/hidden/getopt.h
new file mode 100644
index 00000000000..167af2db749
--- /dev/null
+++ b/lib/libc/hidden/getopt.h
@@ -0,0 +1,37 @@
+/* $OpenBSD: getopt.h,v 1.1 2015/09/12 14:48:14 guenther Exp $ */
+/*
+ * Copyright (c) 2015 Philip Guenther <guenther@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _LIBC_GETOPT_H_
+#define _LIBC_GETOPT_H_
+
+#include_next <getopt.h>
+
+extern PROTO_NORMAL(opterr);
+extern PROTO_NORMAL(optind);
+extern PROTO_NORMAL(optopt);
+
+#if 0
+/* alas, COMMON symbols alias differently */
+extern PROTO_NORMAL(optarg);
+extern PROTO_NORMAL(optreset);
+#endif
+
+PROTO_DEPRECATED(getopt);
+PROTO_DEPRECATED(getopt_long);
+PROTO_DEPRECATED(getopt_long_only);
+
+#endif /* !_LIBC_GETOPT_H_ */
diff --git a/lib/libc/stdlib/getopt_long.c b/lib/libc/stdlib/getopt_long.c
index f46cd8bf4e4..21407824ddf 100644
--- a/lib/libc/stdlib/getopt_long.c
+++ b/lib/libc/stdlib/getopt_long.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: getopt_long.c,v 1.26 2013/06/08 22:47:56 millert Exp $ */
+/* $OpenBSD: getopt_long.c,v 1.27 2015/09/12 14:48:14 guenther Exp $ */
/* $NetBSD: getopt_long.c,v 1.15 2002/01/31 22:43:40 tv Exp $ */
/*
@@ -61,6 +61,11 @@ int optopt = '?'; /* character checked for validity */
int optreset; /* reset getopt */
char *optarg; /* argument associated with option */
+/* DEF_* only work on initialized (non-COMMON) variables */
+DEF_WEAK(opterr);
+DEF_WEAK(optind);
+DEF_WEAK(optopt);
+
#define PRINT_ERROR ((opterr) && (*options != ':'))
#define FLAG_PERMUTE 0x01 /* permute non-options to the end of argv */