Re: [PATCH] fastboot: sparse: print descriptive error on overflowing destination

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On 12/8/23 15:06, Ahmad Fatoum wrote:
Fastboot flash of both regular files and barebox update handlers will
print a message if the file being written doesn't fit the destination:

   barebox update:  "Image (%zd) is too big for device (%lld)\n"
   fastboot:        "write: No space left on device\n"

With sparse images however, not the write will fail, but the lseek to
the new offset, triggering a cryptic:

   "writing sparse image: Invalid argument"

Let's improve upon this a bit by translating lseek -EINVAL to -ENOSPC,
so we get:

   "writing sparse image: No space left on device"

Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>

Tested-by: Bastian Krause <bst@xxxxxxxxxxxxxx>

Thanks!

Bastian

---
  common/fastboot.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/fastboot.c b/common/fastboot.c
index 65d1d30f9092..261283d50a3a 100644
--- a/common/fastboot.c
+++ b/common/fastboot.c
@@ -598,7 +598,7 @@ static int fastboot_handle_sparse(struct fastboot *fb,
pos = lseek(fd, pos, SEEK_SET);
  			if (pos == -1) {
-				ret = -errno;
+				ret = errno == EINVAL ? -ENOSPC : -errno;
  				goto out;
  			}

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