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-rw-r--r--src/Alloc.c52
1 files changed, 51 insertions, 1 deletions
diff --git a/src/Alloc.c b/src/Alloc.c
index ce0594c..5bb27ce 100644
--- a/src/Alloc.c
+++ b/src/Alloc.c
@@ -1,5 +1,5 @@
/***********************************************************
-Copyright (c) 1993, 2011, Oracle and/or its affiliates.
+Copyright (c) 1993, 2023, Oracle and/or its affiliates.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
@@ -84,6 +84,7 @@ in this Software without prior written authorization from The Open Group.
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
+#include <limits.h>
#define Xmalloc(size) malloc((size))
#define Xrealloc(ptr, size) realloc((ptr), (size))
@@ -197,6 +198,38 @@ XtRealloc(char *ptr, unsigned size)
return (ptr);
}
+void *
+XtReallocArray(void *ptr, unsigned num, unsigned size)
+{
+ if (ptr == NULL) {
+#ifdef MALLOC_0_RETURNS_NULL
+ if ((num == 0) || (size == 0))
+ num = size = 1;
+#endif
+#if (SIZE_MAX / UINT_MAX) <= UINT_MAX
+ if ((num > 0) && (SIZE_MAX / num) < size)
+ _XtAllocError("reallocarray: overflow detected");
+#endif
+ return (XtMalloc(num * size));
+ }
+ else {
+ void *new;
+
+#ifdef HAVE_REALLOCARRAY
+ new = reallocarray(ptr, size, num);
+#else
+# if (SIZE_MAX / UINT_MAX) <= UINT_MAX
+ if ((num > 0) && ((SIZE_MAX / num) < size))
+ _XtAllocError("reallocarray: overflow detected");
+# endif
+ new = Xrealloc(ptr, size * num);
+#endif
+ if ((new == NULL) && (num != 0) && (size != 0))
+ _XtAllocError("reallocarray");
+ return (new);
+ }
+}
+
char *
XtCalloc(unsigned num, unsigned size)
{
@@ -402,6 +435,23 @@ XtRealloc(char *ptr, unsigned size)
return _XtRealloc(ptr, size, (char *) NULL, 0);
}
+void *
+_XtReallocArray(void *ptr, unsigned num, unsigned size, const char *file, int line)
+{
+#if (SIZE_MAX / UINT_MAX) <= UINT_MAX
+ if ((num > 0) && (SIZE_MAX / num) < size)
+ _XtAllocError("reallocarray: overflow");
+#endif
+
+ return _XtRealloc(ptr, (num * size), file, line);
+}
+
+void *
+XtReallocArray(void *ptr, unsigned num, unsigned size)
+{
+ return _XtReallocArray(ptr, num, size, (char *) NULL, 0);
+}
+
char *
_XtCalloc(unsigned num, unsigned size, const char *file, int line)
{