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authorJari Vetoniemi <jari.vetoniemi@indooratlas.com>2020-03-16 18:49:26 +0900
committerJari Vetoniemi <jari.vetoniemi@indooratlas.com>2020-03-30 00:39:06 +0900
commitfcbf63e62c627deae76c1b8cb8c0876c536ed811 (patch)
tree64cb17de3f41a2b6fef2368028fbd00349946994 /jni/iconv/srclib/xmalloc.c
Fresh start
Diffstat (limited to 'jni/iconv/srclib/xmalloc.c')
-rw-r--r--jni/iconv/srclib/xmalloc.c128
1 files changed, 128 insertions, 0 deletions
diff --git a/jni/iconv/srclib/xmalloc.c b/jni/iconv/srclib/xmalloc.c
new file mode 100644
index 0000000..d2a1214
--- /dev/null
+++ b/jni/iconv/srclib/xmalloc.c
@@ -0,0 +1,128 @@
+/* xmalloc.c -- malloc with out of memory checking
+ Copyright (C) 1990-1996, 2000-2003, 2005-2007 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <config.h>
+
+/* Specification. */
+#include "xalloc.h"
+
+#include <stdlib.h>
+
+#include "error.h"
+#include "gettext.h"
+
+#define _(str) gettext (str)
+
+
+/* Exit value when the requested amount of memory is not available.
+ The caller may set it to some other value. */
+int xmalloc_exit_failure = EXIT_FAILURE;
+
+void
+xalloc_die ()
+{
+ error (xmalloc_exit_failure, 0, _("memory exhausted"));
+ /* The `noreturn' cannot be given to error, since it may return if
+ its first argument is 0. To help compilers understand the
+ xalloc_die does terminate, call exit. */
+ exit (EXIT_FAILURE);
+}
+
+static void *
+fixup_null_alloc (size_t n)
+{
+ void *p;
+
+ p = NULL;
+ if (n == 0)
+ p = malloc ((size_t) 1);
+ if (p == NULL)
+ xalloc_die ();
+ return p;
+}
+
+/* Allocate N bytes of memory dynamically, with error checking. */
+
+void *
+xmalloc (size_t n)
+{
+ void *p;
+
+ p = malloc (n);
+ if (p == NULL)
+ p = fixup_null_alloc (n);
+ return p;
+}
+
+/* Allocate memory for NMEMB elements of SIZE bytes, with error checking.
+ SIZE must be > 0. */
+
+void *
+xnmalloc (size_t nmemb, size_t size)
+{
+ size_t n;
+ void *p;
+
+ if (xalloc_oversized (nmemb, size))
+ xalloc_die ();
+ n = nmemb * size;
+ p = malloc (n);
+ if (p == NULL)
+ p = fixup_null_alloc (n);
+ return p;
+}
+
+/* Allocate SIZE bytes of memory dynamically, with error checking,
+ and zero it. */
+
+void *
+xzalloc (size_t size)
+{
+ void *p;
+
+ p = xmalloc (size);
+ memset (p, 0, size);
+ return p;
+}
+
+/* Allocate memory for N elements of S bytes, with error checking,
+ and zero it. */
+
+void *
+xcalloc (size_t n, size_t s)
+{
+ void *p;
+
+ p = calloc (n, s);
+ if (p == NULL)
+ p = fixup_null_alloc (n);
+ return p;
+}
+
+/* Change the size of an allocated block of memory P to N bytes,
+ with error checking.
+ If P is NULL, run xmalloc. */
+
+void *
+xrealloc (void *p, size_t n)
+{
+ if (p == NULL)
+ return xmalloc (n);
+ p = realloc (p, n);
+ if (p == NULL)
+ p = fixup_null_alloc (n);
+ return p;
+}