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-rw-r--r--xmalloc.h27
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diff --git a/xmalloc.h b/xmalloc.h
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+/* $OpenBSD: xmalloc.h,v 1.20 2021/04/03 06:18:41 djm Exp $ */
+
+/*
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
+ * All rights reserved
+ * Created: Mon Mar 20 22:09:17 1995 ylo
+ *
+ * Versions of malloc and friends that check their results, and never return
+ * failure (they call fatal if they encounter an error).
+ *
+ * As far as I am concerned, the code I have written for this software
+ * can be used freely for any purpose. Any derived versions of this
+ * software must be clearly marked as such, and if the derived work is
+ * incompatible with the protocol description in the RFC file, it must be
+ * called by a name other than "ssh" or "Secure Shell".
+ */
+
+void *xmalloc(size_t);
+void *xcalloc(size_t, size_t);
+void *xreallocarray(void *, size_t, size_t);
+void *xrecallocarray(void *, size_t, size_t, size_t);
+char *xstrdup(const char *);
+int xasprintf(char **, const char *, ...)
+ __attribute__((__format__ (printf, 2, 3))) __attribute__((__nonnull__ (2)));
+int xvasprintf(char **, const char *, va_list)
+ __attribute__((__nonnull__ (2)));