ncurses 5.0

[ncurses.git] / ncurses / tinfo / doalloc.c

diff --git a/ncurses/tinfo/doalloc.c b/ncurses/tinfo/doalloc.c
new file mode 100644 (file)
index 0000000..84471fb
--- /dev/null
+++ b/ncurses/tinfo/doalloc.c
@@ -0,0 +1,74 @@
+/****************************************************************************
+ * Copyright (c) 1998 Free Software Foundation, Inc.                        *
+ *                                                                          *
+ * Permission is hereby granted, free of charge, to any person obtaining a  *
+ * copy of this software and associated documentation files (the            *
+ * "Software"), to deal in the Software without restriction, including      *
+ * without limitation the rights to use, copy, modify, merge, publish,      *
+ * distribute, distribute with modifications, sublicense, and/or sell       *
+ * copies of the Software, and to permit persons to whom the Software is    *
+ * furnished to do so, subject to the following conditions:                 *
+ *                                                                          *
+ * The above copyright notice and this permission notice shall be included  *
+ * in all copies or substantial portions of the Software.                   *
+ *                                                                          *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+ *                                                                          *
+ * Except as contained in this notice, the name(s) of the above copyright   *
+ * holders shall not be used in advertising or otherwise to promote the     *
+ * sale, use or other dealings in this Software without prior written       *
+ * authorization.                                                           *
+ ****************************************************************************/
+
+/****************************************************************************
+ *  Author: Thomas E. Dickey <dickey@clark.net> 1998                        *
+ ****************************************************************************/
+
+
+/*
+ * Wrapper for malloc/realloc.  Standard implementations allow realloc with
+ * a null pointer, but older libraries may not (e.g., SunOS).
+ *
+ * Also if realloc fails, we discard the old memory to avoid leaks.
+ */
+
+#include <curses.priv.h>
+
+MODULE_ID("$Id: doalloc.c,v 1.5 1999/03/14 12:25:27 tom Exp $")
+
+void *_nc_doalloc(void *oldp, size_t amount)
+{
+       void *newp;
+
+       if (oldp != 0) {
+               if ((newp = realloc(oldp, amount)) == 0) {
+                       free(oldp);
+                       errno = ENOMEM;         /* just in case 'free' reset */
+               }
+       } else {
+               newp = typeMalloc(char, amount);
+       }
+       return newp;
+}
+
+#if !HAVE_STRDUP
+char *_nc_strdup(const char *src)
+{
+    char *dst;
+    if (src != 0) {
+       dst = typeMalloc(char, strlen(src) + 1);
+       if (dst != 0) {
+           (void)strcpy(dst, src);
+       }
+    } else {
+       dst = 0;
+    }
+    return dst;
+}
+#endif