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flashrom: Convert do_read() into a libflashrom user

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Aspire towards a goal of making cli_classic more of just
a user of libflashrom than having quasi-parallel paths in
flashrom.c

This converts the do_read() provider wrapper into a pure
libflashrom user.

BUG=b:208132085
TEST=`$ sudo ./flashrom -p internal -r /tmp/bios.bin`
TEST=`$ sudo ./flashrom -p internal -l /tmp/layout -i FOO -r /tmp/foo.bin`

Change-Id: Id2addadb891c482ee3f69da806062d7a88776675
Signed-off-by: Edward O'Callaghan <quasisec@google.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/60430
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
This commit is contained in:
Edward O'Callaghan 2021-12-29 10:57:12 +11:00 committed by Edward O'Callaghan
parent 7a2d7efd83
commit 35547ed3af
1 changed files with 18 additions and 3 deletions
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21
flashrom.c
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@ -2192,13 +2192,28 @@ _free_ret:
int do_read(struct flashctx *const flash, const char *const filename)
{
if (prepare_flash_access(flash, true, false, false, false))
int ret;
unsigned long size = flash->chip->total_size * 1024;
unsigned char *buf = calloc(size, sizeof(unsigned char));
if (!buf) {
msg_gerr("Memory allocation failed!\n");
return 1;
}
const int ret = read_flash_to_file(flash, filename);
ret = flashrom_image_read(flash, buf, size);
if (ret > 0)
goto free_out;
finalize_flash_access(flash);
if (write_buf_to_include_args(flash, buf)) {
ret = 1;
goto free_out;
}
if (filename)
ret = write_buf_to_file(buf, size, filename);
free_out:
free(buf);
return ret;
}