Base version of ncurses-5.7 library
diff --git a/ncurses/tinfo/doalloc.c b/ncurses/tinfo/doalloc.c
new file mode 100644
index 0000000..fe2a009
--- /dev/null
+++ b/ncurses/tinfo/doalloc.c
@@ -0,0 +1,75 @@
+/****************************************************************************
+ * Copyright (c) 1998,2000 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 1.8 2002/08/31 21:48:11 Philippe.Blain Exp $")
+
+NCURSES_EXPORT(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 = malloc(amount);
+ }
+ return newp;
+}
+
+#if !HAVE_STRDUP
+NCURSES_EXPORT(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