Libc-498.tar.gz

[apple/libc.git] / gen / stringlist-fbsd.c

diff --git a/gen/stringlist-fbsd.c b/gen/stringlist-fbsd.c
new file mode 100644 (file)
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+++ b/gen/stringlist-fbsd.c
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+/*
+ * 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.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char *rcsid = "$NetBSD: stringlist.c,v 1.2 1997/01/17 07:26:20 lukem Exp $";
+#endif /* LIBC_SCCS and not lint */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/lib/libc/gen/stringlist.c,v 1.7 2003/01/19 01:16:01 obrien Exp $");
+
+#include "namespace.h"
+#include <stdio.h>
+#include <string.h>
+#include <err.h>
+#include <stdlib.h>
+#include <stringlist.h>
+#include "un-namespace.h"
+
+#define _SL_CHUNKSIZE  20
+
+/*
+ * sl_init(): Initialize a string list
+ */
+StringList *
+sl_init()
+{
+       StringList *sl;
+
+       sl = malloc(sizeof(StringList));
+       if (sl == NULL)
+               _err(1, "stringlist: %m");
+
+       sl->sl_cur = 0;
+       sl->sl_max = _SL_CHUNKSIZE;
+       sl->sl_str = malloc(sl->sl_max * sizeof(char *));
+       if (sl->sl_str == NULL)
+               _err(1, "stringlist: %m");
+       return sl;
+}
+
+
+/*
+ * sl_add(): Add an item to the string list
+ */
+int
+sl_add(sl, name)
+       StringList *sl;
+       char *name;
+{
+       if (sl->sl_cur == sl->sl_max - 1) {
+               sl->sl_max += _SL_CHUNKSIZE;
+               sl->sl_str = reallocf(sl->sl_str, sl->sl_max * sizeof(char *));
+               if (sl->sl_str == NULL)
+                       return (-1);
+       }
+       sl->sl_str[sl->sl_cur++] = name;
+       return (0);
+}
+
+
+/*
+ * sl_free(): Free a stringlist
+ */
+void
+sl_free(sl, all)
+       StringList *sl;
+       int all;
+{
+       size_t i;
+
+       if (sl == NULL)
+               return;
+       if (sl->sl_str) {
+               if (all)
+                       for (i = 0; i < sl->sl_cur; i++)
+                               free(sl->sl_str[i]);
+               free(sl->sl_str);
+       }
+       free(sl);
+}
+
+
+/*
+ * sl_find(): Find a name in the string list
+ */
+char *
+sl_find(sl, name)
+       StringList *sl;
+       char *name;
+{
+       size_t i;
+
+       for (i = 0; i < sl->sl_cur; i++)
+               if (strcmp(sl->sl_str[i], name) == 0)
+                       return sl->sl_str[i];
+
+       return NULL;
+}