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firmware-utils/tplink-safeloader: make vendor data optional

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Restructure the code a bit to allow for omitting vendor data when generating
factory images.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>
This commit is contained in:
Jo-Philipp Wich 2016-08-24 09:30:56 +02:00 committed by Matthias Schiffer
parent c21af889bb
commit d58e8a9076
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GPG key ID: 16EF3F64CB201D9C
1 changed files with 6 additions and 8 deletions
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14
tools/firmware-utils/src/tplink-safeloader.c
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@ -449,10 +449,6 @@ static void put_partitions(uint8_t *buffer, const struct image_partition_entry *
base += parts[i].size;
}
image_pt++;
memset(image_pt, 0xff, end-image_pt);
}
/** Generates and writes the image MD5 checksum */
@ -492,12 +488,14 @@ static void * generate_factory_image(const char *vendor, const struct image_part
if (!image)
error(1, errno, "malloc");
memset(image, 0xff, *len);
put32(image, *len);
size_t vendor_len = strlen(vendor);
put32(image+0x14, vendor_len);
memcpy(image+0x18, vendor, vendor_len);
memset(image+0x18+vendor_len, 0xff, 4092-vendor_len);
if (vendor) {
size_t vendor_len = strlen(vendor);
put32(image+0x14, vendor_len);
memcpy(image+0x18, vendor, vendor_len);
}
put_partitions(image + 0x1014, parts);
put_md5(image+0x04, image+0x14, *len-0x14);