aboutsummaryrefslogtreecommitdiff
path: root/src/lzma/alloc.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--src/lzma/alloc.c106
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);
+}