BSD 4.4 Lite bin Sources

1 files changed, 148 insertions, 0 deletions

diff --git a/lib/libc/gen/strtofflags.c b/lib/libc/gen/strtofflags.c
new file mode 100644
index 000000000000..5bc4b85f538b
--- /dev/null
+++ b/lib/libc/gen/strtofflags.c
@@ -0,0 +1,148 @@
+/*-
+ * Copyright (c) 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)stat_flags.c	8.1 (Berkeley) 5/31/93";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <stddef.h>
+#include <string.h>
+
+#define	SAPPEND(s) {							\
+	if (prefix != NULL)						\
+		(void)strcat(string, prefix);				\
+	(void)strcat(string, s);					\
+	prefix = ",";							\
+}
+
+/*
+ * flags_to_string --
+ *	Convert stat flags to a comma-separated string.  If no flags
+ *	are set, return the default string.
+ */
+char *
+flags_to_string(flags, def)
+	u_long flags;
+	char *def;
+{
+	static char string[128];
+	char *prefix;
+
+	string[0] = '\0';
+	prefix = NULL;
+	if (flags & UF_APPEND)
+		SAPPEND("uappnd");
+	if (flags & UF_IMMUTABLE)
+		SAPPEND("uchg");
+	if (flags & UF_NODUMP)
+		SAPPEND("nodump");
+	if (flags & SF_APPEND)
+		SAPPEND("sappnd");
+	if (flags & SF_ARCHIVED)
+		SAPPEND("arch");
+	if (flags & SF_IMMUTABLE)
+		SAPPEND("schg");
+	return (prefix == NULL && def != NULL ? def : string);
+}
+
+#define	TEST(a, b, f) {							\
+	if (!memcmp(a, b, sizeof(b))) {					\
+		if (clear) {						\
+			if (clrp)					\
+				*clrp |= (f);				\
+		} else if (setp)					\
+			*setp |= (f);					\
+		break;							\
+	}								\
+}
+
+/*
+ * string_to_flags --
+ *	Take string of arguments and return stat flags.  Return 0 on
+ *	success, 1 on failure.  On failure, stringp is set to point
+ *	to the offending token.
+ */
+int
+string_to_flags(stringp, setp, clrp)
+	char **stringp;
+	u_long *setp, *clrp;
+{
+	int clear;
+	char *string, *p;
+
+	clear = 0;
+	if (setp)
+		*setp = 0;
+	if (clrp)
+		*clrp = 0;
+	string = *stringp;
+	while ((p = strsep(&string, "\t ,")) != NULL) {
+		*stringp = p;
+		if (*p == '\0')
+			continue;
+		if (p[0] == 'n' && p[1] == 'o') {
+			clear = 1;
+			p += 2;
+		}
+		switch (p[0]) {
+		case 'a':
+			TEST(p, "arch", SF_ARCHIVED);
+			TEST(p, "archived", SF_ARCHIVED);
+			return (1);
+		case 'd':
+			clear = !clear;
+			TEST(p, "dump", UF_NODUMP);
+			return (1);
+		case 's':
+			TEST(p, "sappnd", SF_APPEND);
+			TEST(p, "sappend", SF_APPEND);
+			TEST(p, "schg", SF_IMMUTABLE);
+			TEST(p, "schange", SF_IMMUTABLE);
+			TEST(p, "simmutable", SF_IMMUTABLE);
+			return (1);
+		case 'u':
+			TEST(p, "uappnd", UF_APPEND);
+			TEST(p, "uappend", UF_APPEND);
+			TEST(p, "uchg", UF_IMMUTABLE);
+			TEST(p, "uchange", UF_IMMUTABLE);
+			TEST(p, "uimmutable", UF_IMMUTABLE);
+			/* FALLTHROUGH */
+		default:
+			return (1);
+		}
+	}
+	return (0);
+}