1 files changed, 28 insertions, 0 deletions
diff --git a/sys/libc/realloc.c b/sys/libc/realloc.c
new file mode 100644
index 00000000..21446345
--- /dev/null
+++ b/sys/libc/realloc.c
@@ -0,0 +1,28 @@
+/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+*/
+
+#define import_spp
+#define	import_libc
+#define	import_xnames
+#include <iraf.h>
+
+
+/* REALLOC -- Reallocate a buffer, i.e., change the size of an already
+** allocated buffer.  If necessary the buffer is moved, preserving any
+** data in the buffer.
+*/
+char *
+realloc (
+  char	*buf,
+  unsigned newsize
+)
+{
+	XINT	x_nchars = (newsize + sizeof(XCHAR)-1) / sizeof(XCHAR);
+	XINT	x_ptr, x_dtype = TY_CHAR;
+
+	x_ptr = buf ? Memcptr(buf) : NULL;
+	iferr (REALLOC (&x_ptr, &x_nchars, &x_dtype))
+	    return (NULL);
+	else
+	    return ((char *)&Memc[x_ptr]);
+}