From 2590d96369d0217e31dc2812690dde61dac417b5 Mon Sep 17 00:00:00 2001
From: wiktor w brodlo <wiktor@brodlo.net>
Date: Wed, 15 Jun 2011 16:59:54 +0000
Subject: Initial import from Sabayon (ver 0.9.9.56)

---
 utils/geninitrdsz.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 utils/geninitrdsz.c

(limited to 'utils/geninitrdsz.c')

diff --git a/utils/geninitrdsz.c b/utils/geninitrdsz.c
new file mode 100644
index 0000000..6dfd976
--- /dev/null
+++ b/utils/geninitrdsz.c
@@ -0,0 +1,62 @@
+/*
+ * geninitrdsz.c
+ * Generate initrd.size file for zSeries platforms.
+ * Takes an integer argument and writes out the binary representation of
+ * that value to the initrd.size file.
+ * https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=197773
+ *
+ * Copyright (C) 2007  Red Hat, Inc.  All rights reserved.
+ *
+ * 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 2 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 <stdio.h>
+#include <stdlib.h>
+#include <netinet/in.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+
+int main(int argc,char **argv) {
+    unsigned int zero = 0;
+    int fd;
+    unsigned int size;
+    mode_t mode = S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH;
+
+    if (argc != 3) {
+        printf("Usage: %s [integer size] [output file]\n", basename(argv[0]));
+        printf("Example: %s 12288475 initrd.size\n", basename(argv[0]));
+        return 0;
+    }
+
+    size = htonl(atoi(argv[1]));
+    fd = open(argv[2], O_CREAT | O_RDWR, mode);
+
+    if (write(fd, &zero, sizeof(int)) == -1) {
+        perror("writing initrd.size (zero)");
+        return errno;
+    }
+
+    if (write(fd, &size, sizeof(int)) == -1) {
+        perror("writing initrd.size (size)");
+        return errno;
+    }
+
+    close(fd);
+    return 0;
+}
-- 
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