From 34c12c48bc6900b0c7d70ad95f12fc102507b816 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20H=C3=B6glund?= <jonas.hoglund@embeddednation.com>
Date: Tue, 6 Apr 2021 11:47:56 +0200
Subject: [PATCH] Write image to file
---
fdtextract.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/fdtextract.c b/fdtextract.c
index d0d5a8c..b00a514 100644
--- a/fdtextract.c
+++ b/fdtextract.c
@@ -26,7 +26,11 @@
#include <stdarg.h>
#include <string.h>
#include <stdbool.h>
+#include <sys/types.h>
#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
#include <libfdt.h>
#include <fdt.h>
@@ -81,7 +85,7 @@ static int list_images(char *buf)
static int extract_image(char *buf, char *name, char *out)
{
char path[MAX_PATH_LEN];
- int noffset;
+ int noffset, fd, count;
unsigned int data_size, data_offset;
const fdt32_t *val;
@@ -127,6 +131,17 @@ static int extract_image(char *buf, char *name, char *out)
data_size = fdt32_to_cpu(*val);
printf("Offset:0x%08x Size:0x%08x\n", data_offset, data_size);
+ fd = open(out, O_WRONLY | O_CREAT | O_TRUNC, 0666);
+ if (fd < 0) {
+ printf("Error opening output file %s.\n", out);
+ return errno;
+ }
+ count = write(fd, buf + data_offset, data_size);
+ if (count < data_size) {
+ printf("Error writing output file %s.\n", out);
+ return errno;
+ }
+
return 0;
}
--
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