OpenSolaris Launch

1 files changed, 95 insertions, 0 deletions

diff --git a/usr/src/lib/libmail/common/setup_exec.c b/usr/src/lib/libmail/common/setup_exec.c
new file mode 100644
index 0000000000..e1987806ad
--- /dev/null
+++ b/usr/src/lib/libmail/common/setup_exec.c
@@ -0,0 +1,95 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
+/*	  All Rights Reserved  	*/
+
+
+/*
+ * Copyright (c) 1999, by Sun Microsystems, Inc.
+ * All rights reserved.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+/*LINTLIBRARY*/
+
+#include "synonyms.h"
+#include <sys/types.h>
+#include <ctype.h>
+#include "libmail.h"
+
+#define	TRUE	1
+#define	FALSE	0
+
+char **
+setup_exec(char *s)
+{
+	char	*p = s, *q;
+	static char	*argvec[256]; /* is this enough? */
+	int	i = 0;
+	int	stop;
+	int	ignorespace = FALSE;
+
+	/* Parse up string into arg. vec. for subsequent exec. Assume */
+	/* whitespace delimits args. Any non-escaped double quotes will */
+	/* be used to group multiple whitespace-delimited tokens into */
+	/* a single exec arg. */
+	p = skipspace(p);
+	while (*p) {
+		q = p;
+		stop = FALSE;
+		while (*q && (stop == FALSE)) {
+		    again:
+			switch (*q) {
+			case '\\':
+				/* Slide command string 1 char to left */
+				strmove(q, q+1);
+				break;
+			case '"':
+				ignorespace = ((ignorespace == TRUE) ?
+								FALSE : TRUE);
+				/* Slide command string 1 char to left */
+				strmove(q, q+1);
+				goto again;
+			default:
+				if (isspace((int)*q) &&
+				    (ignorespace == FALSE)) {
+					stop = TRUE;
+					continue;
+				}
+				break;
+			}
+			q++;
+		}
+		if (*q == '\0') {
+			argvec[i++] = p;
+			break;
+		}
+		*q++ = '\0';
+		argvec[i++] = p;
+		p = skipspace(q);
+	}
+	argvec[i] = NULL;
+	if (i == 0) {
+		return (NULL);
+	}
+	return (argvec);
+}