Add PROTO_NORMAL() declarations for the remaining syscalls, to avoid

future, inadvertant PLT entries.  Move the __getcwd and __realpath
declarations to hidden/{stdlib,unistd}.h to consolidate and remove
duplication.

ok tb@ otto@ deraadt@

8 files changed, 70 insertions, 15 deletions

diff --git a/lib/libc/compat-43/getwd.c b/lib/libc/compat-43/getwd.c
index 2ae13683744..824d827f70c 100644
--- a/lib/libc/compat-43/getwd.c
+++ b/lib/libc/compat-43/getwd.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: getwd.c,v 1.13 2021/12/16 19:12:43 millert Exp $ */
+/*	$OpenBSD: getwd.c,v 1.14 2023/05/18 16:11:09 guenther Exp $ */
 /*-
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.
@@ -34,9 +34,6 @@
 #include <string.h>
 #include <unistd.h>
 
-int __getcwd(char *buf, size_t len);
-PROTO_NORMAL(__getcwd);
-
 char *
 getwd(char *buf)
 {
diff --git a/lib/libc/gen/getcwd.c b/lib/libc/gen/getcwd.c
index 7197276d8d7..1bc9065563d 100644
--- a/lib/libc/gen/getcwd.c
+++ b/lib/libc/gen/getcwd.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: getcwd.c,v 1.21 2016/05/07 19:48:00 guenther Exp $	*/
+/*	$OpenBSD: getcwd.c,v 1.22 2023/05/18 16:11:09 guenther Exp $	*/
 
 /*
  * Copyright (c) 2005 Marius Eriksen <marius@openbsd.org>
@@ -21,9 +21,6 @@
 #include <stdlib.h>
 #include <unistd.h>
 
-int __getcwd(char *buf, size_t len);
-PROTO_NORMAL(__getcwd);
-
 char *
 getcwd(char *buf, size_t size)
 {
diff --git a/lib/libc/hidden/stdlib.h b/lib/libc/hidden/stdlib.h
index 5753c32945f..46c3536715d 100644
--- a/lib/libc/hidden/stdlib.h
+++ b/lib/libc/hidden/stdlib.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: stdlib.h,v 1.16 2019/05/10 15:03:24 otto Exp $	*/
+/*	$OpenBSD: stdlib.h,v 1.17 2023/05/18 16:11:09 guenther Exp $	*/
 /*	$NetBSD: stdlib.h,v 1.25 1995/12/27 21:19:08 jtc Exp $	*/
 
 /*-
@@ -45,11 +45,14 @@ __END_HIDDEN_DECLS
 extern char **environ;
 extern char *__progname;
 
+int __realpath(const char *pathname, char *resolved);
+
 #if 0
 /*extern PROTO_NORMAL(suboptarg);*/
 #endif
 
 PROTO_NORMAL(__mb_cur_max);
+PROTO_NORMAL(__realpath);
 PROTO_STD_DEPRECATED(_Exit);
 PROTO_DEPRECATED(a64l);
 PROTO_NORMAL(abort);
diff --git a/lib/libc/hidden/sys/event.h b/lib/libc/hidden/sys/event.h
new file mode 100644
index 00000000000..7e129b8aab4
--- /dev/null
+++ b/lib/libc/hidden/sys/event.h
@@ -0,0 +1,26 @@
+/*	$OpenBSD: event.h,v 1.1 2023/05/18 16:11:09 guenther Exp $	*/
+/*
+ * Copyright (c) 2023 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_SYS_EVENT_H_
+#define _LIBC_SYS_EVENT_H_
+
+#include_next <sys/event.h>
+
+PROTO_NORMAL(kevent);
+PROTO_NORMAL(kqueue);
+
+#endif /* !_LIBC_SYS_EVENT_H_ */
diff --git a/lib/libc/hidden/sys/shm.h b/lib/libc/hidden/sys/shm.h
new file mode 100644
index 00000000000..93b2a2f2c60
--- /dev/null
+++ b/lib/libc/hidden/sys/shm.h
@@ -0,0 +1,28 @@
+/*	$OpenBSD: shm.h,v 1.1 2023/05/18 16:11:09 guenther Exp $	*/
+/*
+ * Copyright (c) 2023 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_SYS_SHM_H_
+#define _LIBC_SYS_SHM_H_
+
+#include_next <sys/shm.h>
+
+PROTO_NORMAL(shmat);
+PROTO_NORMAL(shmctl);
+PROTO_NORMAL(shmdt);
+PROTO_NORMAL(shmget);
+
+#endif /* !_LIBC_SYS_SHM_H_ */
diff --git a/lib/libc/hidden/sys/stat.h b/lib/libc/hidden/sys/stat.h
index 4c95416041d..19235e020f7 100644
--- a/lib/libc/hidden/sys/stat.h
+++ b/lib/libc/hidden/sys/stat.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: stat.h,v 1.2 2015/09/14 10:11:54 guenther Exp $	*/
+/*	$OpenBSD: stat.h,v 1.3 2023/05/18 16:11:09 guenther Exp $	*/
 /*
  * Copyright (c) 2015 Philip Guenther <guenther@openbsd.org>
  *
@@ -21,6 +21,7 @@
 #include_next <sys/stat.h>
 
 PROTO_NORMAL(chflags);
+PROTO_NORMAL(chflagsat);
 PROTO_NORMAL(chmod);
 PROTO_NORMAL(fchflags);
 PROTO_NORMAL(fchmod);
diff --git a/lib/libc/hidden/unistd.h b/lib/libc/hidden/unistd.h
index 692951637c8..c5950955339 100644
--- a/lib/libc/hidden/unistd.h
+++ b/lib/libc/hidden/unistd.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: unistd.h,v 1.11 2018/07/13 09:25:22 beck Exp $	*/
+/*	$OpenBSD: unistd.h,v 1.12 2023/05/18 16:11:09 guenther Exp $	*/
 /*
  * Copyright (c) 2015 Philip Guenther <guenther@openbsd.org>
  *
@@ -25,6 +25,10 @@ __BEGIN_HIDDEN_DECLS
 extern int	_pagesize;
 __END_HIDDEN_DECLS
 
+/* the real syscall behind getcwd(3) and getwd(3) */
+int __getcwd(char *buf, size_t len);
+
+PROTO_NORMAL(__getcwd);
 PROTO_NORMAL(__tfork_thread);
 PROTO_NORMAL(_exit);
 PROTO_NORMAL(access);
@@ -87,6 +91,7 @@ PROTO_NORMAL(getresgid);
 PROTO_NORMAL(getresuid);
 PROTO_NORMAL(getsid);
 PROTO_NORMAL(getthrid);
+PROTO_NORMAL(getthrname);
 PROTO_NORMAL(getuid);
 PROTO_DEPRECATED(getusershell);
 PROTO_DEPRECATED(getwd);
@@ -142,6 +147,7 @@ PROTO_NORMAL(setresgid);
 PROTO_NORMAL(setresuid);
 PROTO_NORMAL(setreuid);
 PROTO_NORMAL(setsid);
+PROTO_NORMAL(setthrname);
 PROTO_NORMAL(setuid);
 PROTO_DEPRECATED(setusershell);
 /*PROTO_CANCEL(sleep);*/
diff --git a/lib/libc/stdlib/realpath.c b/lib/libc/stdlib/realpath.c
index f7ac9fe6060..6562e1311b1 100644
--- a/lib/libc/stdlib/realpath.c
+++ b/lib/libc/stdlib/realpath.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: realpath.c,v 1.27 2019/07/05 05:04:26 deraadt Exp $ */
+/*	$OpenBSD: realpath.c,v 1.28 2023/05/18 16:11:10 guenther Exp $ */
 /*
  * Copyright (c) 2019 Bob Beck <beck@openbsd.org>
  * Copyright (c) 2019 Theo de Raadt <deraadt@openbsd.org>
@@ -24,9 +24,6 @@
 #include <syslog.h>
 #include <stdarg.h>
 
-int __realpath(const char *pathname, char *resolved);
-PROTO_NORMAL(__realpath);
-
 /*
  * wrapper for kernel __realpath
  */