6437624 RFE: Add ksh93 (as /usr/bin/ksh93) and libshell.so to OS/Net

6505835 AST tools and library (libpp) required for creating l10n messages for ksh93
PSARC/2006/550 Korn Shell 93 Integration
PSARC/2006/587 /etc/ksh.kshrc for ksh93
PSARC/2007/035 ksh93 Amendments
Contributed by Roland Mainz <roland.mainz@nrubsig.org>

--HG--
rename : usr/src/lib/libcmd/common/mapfile-vers => deleted_files/usr/src/lib/libcmd/common/mapfile-vers
rename : usr/src/lib/libcmd/common/placeholder.c => deleted_files/usr/src/lib/libcmd/common/placeholder.c

1 files changed, 55 insertions, 0 deletions

diff --git a/usr/src/lib/libast/common/comp/basename.c b/usr/src/lib/libast/common/comp/basename.c
new file mode 100644
index 0000000000..43f4957604
--- /dev/null
+++ b/usr/src/lib/libast/common/comp/basename.c
@@ -0,0 +1,55 @@
+/***********************************************************************
+*                                                                      *
+*               This software is part of the ast package               *
+*           Copyright (c) 1985-2007 AT&T Knowledge Ventures            *
+*                      and is licensed under the                       *
+*                  Common Public License, Version 1.0                  *
+*                      by AT&T Knowledge Ventures                      *
+*                                                                      *
+*                A copy of the License is available at                 *
+*            http://www.opensource.org/licenses/cpl1.0.txt             *
+*         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
+*                                                                      *
+*              Information and Software Systems Research               *
+*                            AT&T Research                             *
+*                           Florham Park NJ                            *
+*                                                                      *
+*                 Glenn Fowler <gsf@research.att.com>                  *
+*                  David Korn <dgk@research.att.com>                   *
+*                   Phong Vo <kpv@research.att.com>                    *
+*                                                                      *
+***********************************************************************/
+#pragma prototyped
+/*
+ * basename(3) implementation
+ */
+
+#include <ast_std.h>
+
+#if defined(__EXPORT__)
+#define extern	__EXPORT__
+#endif
+
+extern char *basename(register char *pathname)
+{
+	register char *first, *last;
+	for(first=last=pathname; *last; last++);
+	/* back over trailing '/' */
+	if(last>first)
+		while(*--last=='/' && last > first);
+	if(last==first && *last=='/')
+	{
+		/* all '/' or "" */
+		if(*first=='/')
+			if(*++last=='/')	/* keep leading // */
+				last++;
+	}
+	else
+	{
+		for(first=last++;first>pathname && *first!='/';first--);
+		if(*first=='/')
+			first++;
+	}
+	*last = 0;
+	return(first);
+}