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author | Peter Wu <peter@lekensteyn.nl> | 2014-12-14 23:07:53 +0100 |
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committer | Peter Wu <peter@lekensteyn.nl> | 2014-12-14 23:07:53 +0100 |
commit | e922ec016555b743a52312df3ad98e4150b05c79 (patch) | |
tree | 2a9aea5ddb1a6396adf132ae75a24e3735392c57 | |
parent | a9e8281750ab95cc4b7ffcdc0c925da15e45bb77 (diff) | |
download | t650-dfu-e922ec016555b743a52312df3ad98e4150b05c79.tar.gz |
fw len must be a multiple of 15 bytes
-rw-r--r-- | fw-update.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fw-update.c b/fw-update.c index acd53bf..e3e67b4 100644 --- a/fw-update.c +++ b/fw-update.c @@ -303,6 +303,18 @@ int main(int argc, char **argv) { } printf("Firmware size: %zu\n", fw_len); + /* ensure that firmware is a multiple of 15 bytes */ + if (fw_len % 15) { + size_t fw_len_padded = (fw_len / 15 + 1) * 15; + fw = realloc(fw, fw_len_padded); + if (fw == NULL) { + perror("realloc"); + abort(); + } + memset(fw + fw_len, 0xff, fw_len_padded - fw_len); + printf(" (padded with %zi bytes)\n", fw_len_padded - fw_len); + fw_len = fw_len_padded; + } hid_fd = open(argv[1], O_RDWR); if (hid_fd >= 0) { |