Vendor import of OpenSSH.

1 files changed, 53 insertions, 0 deletions

diff --git a/crypto/openssh/xmalloc.c b/crypto/openssh/xmalloc.c
new file mode 100644
index 0000000..afcdbd9
--- /dev/null
+++ b/crypto/openssh/xmalloc.c
@@ -0,0 +1,53 @@
+/*
+ * 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 21:23:10 1995 ylo
+ * Versions of malloc and friends that check their results, and never return
+ * failure (they call fatal if they encounter an error).
+ */
+
+#include "includes.h"
+RCSID("$Id: xmalloc.c,v 1.5 1999/11/24 00:26:04 deraadt Exp $");
+
+#include "ssh.h"
+
+void *
+xmalloc(size_t size)
+{
+	void *ptr = malloc(size);
+	if (ptr == NULL)
+		fatal("xmalloc: out of memory (allocating %d bytes)", (int) size);
+	return ptr;
+}
+
+void *
+xrealloc(void *ptr, size_t new_size)
+{
+	void *new_ptr;
+
+	if (ptr == NULL)
+		fatal("xrealloc: NULL pointer given as argument");
+	new_ptr = realloc(ptr, new_size);
+	if (new_ptr == NULL)
+		fatal("xrealloc: out of memory (new_size %d bytes)", (int) new_size);
+	return new_ptr;
+}
+
+void 
+xfree(void *ptr)
+{
+	if (ptr == NULL)
+		fatal("xfree: NULL pointer given as argument");
+	free(ptr);
+}
+
+char *
+xstrdup(const char *str)
+{
+	int len = strlen(str) + 1;
+
+	char *cp = xmalloc(len);
+	strlcpy(cp, str, len);
+	return cp;
+}