1 files changed, 106 insertions, 0 deletions
diff --git a/src/lzma/alloc.c b/src/lzma/alloc.c
new file mode 100644
index 00000000..d0fee68b
--- /dev/null
+++ b/src/lzma/alloc.c
@@ -0,0 +1,106 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       alloc.c
+/// \brief      Memory allocation functions
+//
+//  Copyright (C) 2007 Lasse Collin
+//
+//  This program is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU Lesser General Public
+//  License as published by the Free Software Foundation; either
+//  version 2.1 of the License, or (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//  Lesser General Public License for more details.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "private.h"
+
+
+/// Called when memory allocation fails. Prints and error message and
+/// quits the application.
+static void lzma_attribute((noreturn))
+xerror(void)
+{
+	errmsg(V_ERROR, "%s", strerror(errno));
+	my_exit(ERROR);
+}
+
+
+extern void *
+xmalloc(size_t size)
+{
+	if (size < 1) {
+		errno = EINVAL;
+		xerror();
+	}
+
+	void *p = malloc(size);
+	if (p == NULL)
+		xerror();
+
+	return p;
+}
+
+
+/*
+extern void *
+xrealloc(void *ptr, size_t size)
+{
+	if (size < 1) {
+		errno = EINVAL;
+		xerror();
+	}
+
+	ptr = realloc(ptr, size);
+	if (ptr == NULL)
+		xerror();
+
+	return ptr;
+}
+*/
+
+
+extern char *
+xstrdup(const char *src)
+{
+	if (src == NULL) {
+		errno = EINVAL;
+		xerror();
+	}
+
+	const size_t size = strlen(src) + 1;
+	char *dest = malloc(size);
+	if (dest == NULL)
+		xerror();
+
+	memcpy(dest, src, size);
+
+	return dest;
+}
+
+
+extern void
+xstrcpy(char **dest, const char *src)
+{
+	size_t len = strlen(src) + 1;
+
+	*dest = realloc(*dest, len);
+	if (*dest == NULL)
+		xerror();
+
+	memcpy(*dest, src, len + 1);
+
+	return;
+}
+
+
+extern void *
+allocator(void *opaque lzma_attribute((unused)),
+		size_t nmemb lzma_attribute((unused)), size_t size)
+{
+	return xmalloc(size);
+}