cbfstool: Add bintohex function

We need to emit some hex strings.

Change-Id: I9e7e184282f6ad0470f2e269f5dc874e78f8b697
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/11766
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Patrick Georgi 2015-10-01 15:52:56 +02:00 committed by Patrick Georgi
parent 8b29322557
commit ca97fa7ac3
2 changed files with 24 additions and 0 deletions

View File

@ -196,3 +196,20 @@ uint64_t intfiletype(const char *name)
return filetypes[i].type;
return -1;
}
char *bintohex(uint8_t *data, size_t len)
{
static const char translate[16] = "0123456789abcdef";
char *result = malloc(len * 2 + 1);
if (result == NULL)
return NULL;
result[len*2] = '\0';
unsigned int i;
for (i = 0; i < len; i++) {
result[i*2] = translate[(data[i] >> 4) & 0xf];
result[i*2+1] = translate[data[i] & 0xf];
}
return result;
}

View File

@ -210,4 +210,11 @@ extern struct xdr xdr_le, xdr_be;
size_t bgets(struct buffer *input, void *output, size_t len);
size_t bputs(struct buffer *b, const void *data, size_t len);
/* Returns a 0-terminated string containing a hex representation of
* len bytes starting at data.
* The string is malloc'd and it's the caller's responsibility to free
* the memory.
* On error, bintohex returns NULL.
*/
char *bintohex(uint8_t *data, size_t len);
#endif