From 692207eb457f9b4bf6cb4301d710d19b6e85c902 Mon Sep 17 00:00:00 2001
From: Elliott Hughes <enh@google.com>
Date: Fri, 28 Feb 2014 16:23:27 -0800
Subject: [PATCH] Add getprogname/setprogname for BSD compatibility.

This is one less change we have to make when porting BSD code.

Bug: https://code.google.com/p/android/issues/detail?id=34898
Change-Id: If9b1a8d16996c7a19abcce8d3a456afc3e105a41
---
 libc/Android.mk                               |  6 ++--
 libc/include/stdlib.h                         |  4 +++
 .../lib/libc/gen/getprogname.c                | 24 ++++++++++++++
 .../lib/libc/gen/setprogname.c                | 32 +++++++++++++++++++
 4 files changed, 64 insertions(+), 2 deletions(-)
 create mode 100644 libc/upstream-openbsd/lib/libc/gen/getprogname.c
 create mode 100644 libc/upstream-openbsd/lib/libc/gen/setprogname.c

diff --git a/libc/Android.mk b/libc/Android.mk
index 852db739c..d4ccefbe5 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -317,10 +317,12 @@ libc_upstream_netbsd_src_files := \
 
 libc_upstream_openbsd_src_files := \
     upstream-openbsd/lib/libc/gen/exec.c \
-    upstream-openbsd/lib/libc/gen/ftok.c \
     upstream-openbsd/lib/libc/gen/fnmatch.c \
-    upstream-openbsd/lib/libc/gen/toupper_.c \
+    upstream-openbsd/lib/libc/gen/ftok.c \
+    upstream-openbsd/lib/libc/gen/getprogname.c \
+    upstream-openbsd/lib/libc/gen/setprogname.c \
     upstream-openbsd/lib/libc/gen/tolower_.c \
+    upstream-openbsd/lib/libc/gen/toupper_.c \
     upstream-openbsd/lib/libc/string/strstr.c \
     upstream-openbsd/lib/libc/string/strsep.c \
     upstream-openbsd/lib/libc/string/wcslcpy.c \
diff --git a/libc/include/stdlib.h b/libc/include/stdlib.h
index 9c04059b3..9595170a3 100644
--- a/libc/include/stdlib.h
+++ b/libc/include/stdlib.h
@@ -153,6 +153,10 @@ typedef struct {
 
 extern lldiv_t   lldiv(long long, long long);
 
+/* BSD compatibility. */
+extern const char* getprogname(void);
+extern void setprogname(const char*);
+
 #if 1 /* MISSING FROM BIONIC - ENABLED FOR STLPort and libstdc++-v3 */
 /* make STLPort happy */
 extern int      mblen(const char *, size_t);
diff --git a/libc/upstream-openbsd/lib/libc/gen/getprogname.c b/libc/upstream-openbsd/lib/libc/gen/getprogname.c
new file mode 100644
index 000000000..1cf498c88
--- /dev/null
+++ b/libc/upstream-openbsd/lib/libc/gen/getprogname.c
@@ -0,0 +1,24 @@
+/* $OpenBSD: getprogname.c,v 1.2 2013/05/31 21:19:01 tedu Exp $ */
+/*
+ * Copyright (c) 2013 Antoine Jacoutot <ajacoutot@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.
+ */
+
+extern const char *__progname;
+
+const char *
+getprogname(void)
+{
+	return (__progname);
+}
diff --git a/libc/upstream-openbsd/lib/libc/gen/setprogname.c b/libc/upstream-openbsd/lib/libc/gen/setprogname.c
new file mode 100644
index 000000000..18b2ce03b
--- /dev/null
+++ b/libc/upstream-openbsd/lib/libc/gen/setprogname.c
@@ -0,0 +1,32 @@
+/* $OpenBSD: setprogname.c,v 1.3 2013/06/01 01:43:43 tedu Exp $ */
+/*
+ * Copyright (c) 2013 Antoine Jacoutot <ajacoutot@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.
+ */
+
+#include <string.h>
+
+extern const char *__progname;
+
+void
+setprogname(const char *progname)
+{
+	const char *tmpn;
+
+	tmpn = strrchr(progname, '/');
+	if (tmpn == NULL)
+		__progname = progname;
+	else
+		__progname = tmpn + 1;
+}