wip
diff --git a/bootloader.c b/bootloader.c
index d4039d8..e88160d 100644
--- a/bootloader.c
+++ b/bootloader.c
@@ -22,6 +22,8 @@
#include <errno.h>
#include <stdio.h>
#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
static int get_bootloader_message_mtd(struct bootloader_message *out, const Volume* v);
static int set_bootloader_message_mtd(const struct bootloader_message *in, const Volume* v);
@@ -140,8 +142,26 @@
// for misc partitions on block devices
// ------------------------------------
+static void wait_for_device(const char* fn) {
+ int tries = 0;
+ int ret;
+ struct stat buf;
+ do {
+ ++tries;
+ ret = stat(fn, &buf);
+ if (ret) {
+ printf("stat %s try %d: %s\n", fn, tries, strerror(errno));
+ sleep(1);
+ }
+ } while (ret && tries < 10);
+ if (ret) {
+ printf("failed to stat %s\n", fn);
+ }
+}
+
static int get_bootloader_message_block(struct bootloader_message *out,
const Volume* v) {
+ wait_for_device(v->device);
FILE* f = fopen(v->device, "rb");
if (f == NULL) {
LOGE("Can't open %s\n(%s)\n", v->device, strerror(errno));
@@ -163,6 +183,7 @@
static int set_bootloader_message_block(const struct bootloader_message *in,
const Volume* v) {
+ wait_for_device(v->device);
FILE* f = fopen(v->device, "wb");
if (f == NULL) {
LOGE("Can't open %s\n(%s)\n", v->device, strerror(errno));
@@ -328,4 +349,4 @@
}
return 0;
-}
\ No newline at end of file
+}