Merge branch 'ubi'

1 files changed, 116 insertions, 0 deletions

diff --git a/ubi-utils/src/peb.c b/ubi-utils/src/peb.c
new file mode 100644
index 0000000..08b770f
--- /dev/null
+++ b/ubi-utils/src/peb.c
@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) International Business Machines Corp., 2006
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <assert.h>
+
+#include "peb.h"
+
+int
+peb_cmp(peb_t eb_1, peb_t eb_2)
+{
+	assert(eb_1);
+	assert(eb_2);
+
+	return eb_1->num == eb_2->num ? 0
+		: eb_1->num > eb_2->num ? 1 : -1;
+}
+
+int
+peb_new(uint32_t eb_num, uint32_t eb_size, peb_t *peb)
+{
+	int rc = 0;
+
+	peb_t res = (peb_t) malloc(sizeof(struct peb));
+	if (!res) {
+		rc = -ENOMEM;
+		goto err;
+	}
+
+	res->num  = eb_num;
+	res->size = eb_size;
+	res->data = (uint8_t*) malloc(res->size * sizeof(uint8_t));
+	if (!res->data) {
+		rc = -ENOMEM;
+		goto err;
+	}
+	memset(res->data, 0xff, res->size);
+
+	*peb = res;
+	return 0;
+err:
+	if (res) {
+		if (res->data)
+			free(res->data);
+		free(res);
+	}
+	*peb = NULL;
+	return rc;
+}
+
+int
+peb_fill(peb_t peb, uint8_t* buf, size_t buf_size)
+{
+	if (!peb)
+		return -EINVAL;
+
+	if (buf_size > peb->size)
+		return -EINVAL;
+
+	memcpy(peb->data, buf, buf_size);
+	return 0;
+}
+
+int
+peb_write(FILE* fp_out, peb_t peb)
+{
+	size_t written = 0;
+
+	if (peb == NULL)
+		return -EINVAL;
+
+	written = fwrite(peb->data, 1, peb->size, fp_out);
+
+	if (written != peb->size)
+		return -EIO;
+
+	return 0;
+}
+
+int
+peb_free(peb_t* peb)
+{
+	peb_t tmp = *peb;
+	if (tmp) {
+		if (tmp->data)
+			free(tmp->data);
+		free(tmp);
+	}
+	*peb = NULL;
+
+	return 0;
+}
+
+void peb_dump(FILE* fp_out, peb_t peb)
+{
+	fprintf(fp_out, "num: %08d\tsize: 0x%08x\n", peb->num, peb->size);
+}