1 files changed, 76 insertions, 0 deletions
diff --git a/usr/src/lib/libast/common/vec/vecargs.c b/usr/src/lib/libast/common/vec/vecargs.c
new file mode 100644
index 0000000000..e30cd3b689
--- /dev/null
+++ b/usr/src/lib/libast/common/vec/vecargs.c
@@ -0,0 +1,76 @@
+/***********************************************************************
+*                                                                      *
+*               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
+/*
+ * Glenn Fowler
+ * AT&T Bell Laboratories
+ *
+ * string vector argv insertion
+ */
+
+#include <ast.h>
+#include <vecargs.h>
+#include <ctype.h>
+
+/*
+ * insert the string vector vec between
+ * (*argvp)[0] and (*argvp)[1], sliding (*argvp)[1] ... over
+ * null and blank args are deleted
+ *
+ * vecfree always called
+ *
+ * -1 returned if insertion failed
+ */
+
+int
+vecargs(register char** vec, int* argcp, char*** argvp)
+{
+	register char**	argv;
+	register char**	oargv;
+	char**		ovec;
+	char*		s;
+	int		num;
+
+	if (!vec) return(-1);
+	if ((num = (char**)(*(vec - 1)) - vec) > 0)
+	{
+		if (!(argv = newof(0, char*, num + *argcp + 1, 0)))
+		{
+			vecfree(vec, 0);
+			return(-1);
+		}
+		oargv = *argvp;
+		*argvp = argv;
+		*argv++ = *oargv++;
+		ovec = vec;
+		while (s = *argv = *vec++)
+		{
+			while (isspace(*s)) s++;
+			if (*s) argv++;
+		}
+		vecfree(ovec, 1);
+		while (*argv = *oargv++) argv++;
+		*argcp = argv - *argvp;
+	}
+	else vecfree(vec, 0);
+	return(0);
+}