1 files changed, 60 insertions, 0 deletions
diff --git a/package/heirloom-cpio/src/ib_alloc.c b/package/heirloom-cpio/src/ib_alloc.c
new file mode 100644
index 000000000..4020940ce
--- /dev/null
+++ b/package/heirloom-cpio/src/ib_alloc.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2003 Gunnar Ritter
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute
+ * it freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ *
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ *
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+/*	Sccsid @(#)ib_alloc.c	1.5 (gritter) 3/12/05	*/
+
+#include	<sys/types.h>
+#include	<sys/stat.h>
+#include	<fcntl.h>
+#include	<unistd.h>
+#include	<string.h>
+#include	<errno.h>
+#include	<stdlib.h>
+
+#include	"memalign.h"
+#include	"iblok.h"
+
+struct iblok *
+ib_alloc(int fd, unsigned blksize)
+{
+	static long	pagesize;
+	struct iblok	*ip;
+	struct stat	st;
+
+	if (pagesize == 0)
+		if ((pagesize = sysconf(_SC_PAGESIZE)) < 0)
+			pagesize = 4096;
+	if (blksize == 0) {
+		if (fstat(fd, &st) < 0)
+			return NULL;
+		blksize = st.st_blksize > 0 ? st.st_blksize : 512;
+	}
+	if ((ip = calloc(1, sizeof *ip)) == NULL)
+		return NULL;
+	if ((ip->ib_blk = memalign(pagesize, blksize)) == NULL) {
+		free(ip);
+		return NULL;
+	}
+	ip->ib_blksize = blksize;
+	ip->ib_fd = fd;
+	ip->ib_mb_cur_max = MB_CUR_MAX;
+	return ip;
+}