Fix a regression caused by the insertion of two new tokens,

[mandoc.git] / compat_stringlist.c

diff --git a/compat_stringlist.c b/compat_stringlist.c
index 05b62d382391b99459419e2e90bfc871e35a04e5..fb8e56aebaa482975f2aa14e1022382c4fa638e2 100644 (file)
--- a/compat_stringlist.c
+++ b/compat_stringlist.c
@@ -1,8 +1,13 @@
-/*     $Id: compat_stringlist.c,v 1.3 2015/05/20 23:00:43 schwarze Exp $       */
-/*
- * Copyright (c) 1994 Christos Zoulas <christos@netbsd.org>
+/*     $Id: compat_stringlist.c,v 1.8 2020/06/15 21:48:09 schwarze Exp $ */
+/*     $NetBSD: stringlist.c,v 1.14 2015/05/21 01:29:13 christos Exp $ */
+
+/*-
+ * Copyright (c) 1994, 1999 The NetBSD Foundation, Inc.
  * All rights reserved.
  *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Christos Zoulas.
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ -11,23 +16,21 @@
  * 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.
- * 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.
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
  */
+#include "config.h"
 
-#include <err.h>
 #include <stdlib.h>
 #include <string.h>
 #include "compat_stringlist.h"
@@ -44,13 +47,15 @@ sl_init(void)
 
        sl = malloc(sizeof(StringList));
        if (sl == NULL)
-               err(1, "stringlist");
+               return NULL;
 
        sl->sl_cur = 0;
        sl->sl_max = _SL_CHUNKSIZE;
        sl->sl_str = reallocarray(NULL, sl->sl_max, sizeof(char *));
-       if (sl->sl_str == NULL)
-               err(1, "stringlist");
+       if (sl->sl_str == NULL) {
+               free(sl);
+               sl = NULL;
+       }
        return sl;
 }
 
@@ -62,14 +67,17 @@ int
 sl_add(StringList *sl, char *name)
 {
        if (sl->sl_cur == sl->sl_max - 1) {
+               char    **new;
+
+               new = reallocarray(sl->sl_str, (sl->sl_max + _SL_CHUNKSIZE),
+                   sizeof(char *));
+               if (new == NULL)
+                       return -1;
                sl->sl_max += _SL_CHUNKSIZE;
-               sl->sl_str = reallocarray(sl->sl_str,
-                   sl->sl_max, sizeof(char *));
-               if (sl->sl_str == NULL)
-                       return (-1);
+               sl->sl_str = new;
        }
        sl->sl_str[sl->sl_cur++] = name;
-       return (0);
+       return 0;
 }
 
 
@@ -107,3 +115,21 @@ sl_find(StringList *sl, const char *name)
 
        return NULL;
 }
+
+int
+sl_delete(StringList *sl, const char *name, int all)
+{
+       size_t i, j;
+
+       for (i = 0; i < sl->sl_cur; i++)
+               if (strcmp(sl->sl_str[i], name) == 0) {
+                       if (all)
+                               free(sl->sl_str[i]);
+                       for (j = i + 1; j < sl->sl_cur; j++)
+                               sl->sl_str[j - 1] = sl->sl_str[j];
+                       sl->sl_str[--sl->sl_cur] = NULL;
+                       return 0;
+               }
+       return -1;
+}
+