diff options
Diffstat (limited to 'package/utils/otrx')
| -rw-r--r-- | package/utils/otrx/src/otrx.c | 21 |
1 files changed, 7 insertions, 14 deletions
diff --git a/package/utils/otrx/src/otrx.c b/package/utils/otrx/src/otrx.c index 7b02977abb..d08507f685 100644 --- a/package/utils/otrx/src/otrx.c +++ b/package/utils/otrx/src/otrx.c @@ -284,7 +284,7 @@ static ssize_t otrx_create_align(FILE *trx, size_t curr_offset, size_t alignment static int otrx_create_write_hdr(FILE *trx, struct trx_header *hdr) { size_t bytes, length; - uint8_t *buf; + uint8_t buf[1024]; uint32_t crc32; hdr->magic = cpu_to_le32(TRX_MAGIC); @@ -299,20 +299,13 @@ static int otrx_create_write_hdr(FILE *trx, struct trx_header *hdr) { length = le32_to_cpu(hdr->length); - buf = malloc(length); - if (!buf) { - fprintf(stderr, "Couldn't alloc %zu B buffer\n", length); - return -ENOMEM; - } - - fseek(trx, 0, SEEK_SET); - bytes = fread(buf, 1, length, trx); - if (bytes != length) { - fprintf(stderr, "Couldn't read %zu B of data from %s\n", length, trx_path); - return -ENOMEM; + crc32 = 0xffffffff; + fseek(trx, TRX_FLAGS_OFFSET, SEEK_SET); + length -= TRX_FLAGS_OFFSET; + while ((bytes = fread(buf, 1, otrx_min(sizeof(buf), length), trx)) > 0) { + crc32 = otrx_crc32(crc32, buf, bytes); + length -= bytes; } - - crc32 = otrx_crc32(0xffffffff, buf + TRX_FLAGS_OFFSET, length - TRX_FLAGS_OFFSET); hdr->crc32 = cpu_to_le32(crc32); fseek(trx, 0, SEEK_SET); |