initial import of NetBSD tree

1 files changed, 119 insertions, 0 deletions

diff --git a/usr.sbin/netgroup_mkdb/str.c b/usr.sbin/netgroup_mkdb/str.c
new file mode 100644
index 00000000000..dafa49180cb
--- /dev/null
+++ b/usr.sbin/netgroup_mkdb/str.c
@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 1994 Christos Zoulas
+ * 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 Christos Zoulas.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 *rcsid = "$Id: str.c,v 1.1 1995/10/18 08:47:57 deraadt Exp $";
+#endif
+
+/*
+ * Counted strings
+ */
+#include <stdlib.h>
+#include <string.h>
+
+#include "util.h"
+#include "str.h"
+
+/*
+ * str_init(): Initialize string
+ */
+void
+str_init(s)
+	struct string  *s;
+{
+	s->s_str = NULL;
+	s->s_len = 0;
+}
+
+
+/*
+ * str_append(): Append string allocating buffer as necessary
+ */
+void
+str_append(buf, str, del)
+	struct string  *buf;
+	const char     *str;
+	int             del;
+{
+	size_t          len = strlen(str) + 1;
+
+	if (buf->s_str == NULL)
+		buf->s_str = emalloc(len);
+	else {
+		buf->s_str = erealloc(buf->s_str, buf->s_len + len +
+						  (del ? 2 : 1));
+		if (del)
+			buf->s_str[buf->s_len++] = del;
+	}
+
+	memcpy(&buf->s_str[buf->s_len], str, len);
+	buf->s_len += len - 1;
+}
+
+/*
+ * str_prepend(): Prepend string allocating buffer as necessary
+ */
+void
+str_prepend(buf, str, del)
+	struct string  *buf;
+	const char     *str;
+	int             del;
+{
+	char           *ptr, *sptr;
+	size_t          len = strlen(str) + 1;
+
+	sptr = ptr = emalloc(buf->s_len + len + (del ? 2 : 1));
+
+	if (del)
+		*ptr++ = del;
+
+	memcpy(ptr, str, len);
+
+	if (buf->s_str) {
+		memcpy(&ptr[len - 1], buf->s_str, buf->s_len + 1);
+		free(buf->s_str);
+	}
+
+	buf->s_str = sptr;
+	buf->s_len += del ? len : len - 1;
+}
+
+/*
+ * str_free(): Free a string
+ */
+void
+str_free(s)
+	struct string  *s;
+{
+	free(s->s_str);
+	s->s_str = NULL;
+	s->s_len = 0;
+}