AuroraMiddleware/mbedtls
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Correct fix for potential truncation

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This was a false positive caused by the compiler seeing the %08lx
specifiers and judging the output on that, rather than the numbers being
fed in. Given these are going to be maximum 32 bit numbers, then better
to use %08x, which keeps -Wformat-truncation=2 happy as well.

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
This commit is contained in:
Paul Elliott 2020-12-17 18:33:40 +00:00
parent f8d733e49a
commit 3a5a107fa7
1 changed files with 3 additions and 4 deletions
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7
library/psa_its_file.c
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@ -47,11 +47,10 @@
#define PSA_ITS_STORAGE_PREFIX ""
#endif
#define PSA_ITS_STORAGE_FILENAME_PATTERN "%08lx%08lx"
#define PSA_ITS_STORAGE_FILENAME_PATTERN "%08x%08x"
#define PSA_ITS_STORAGE_SUFFIX ".psa_its"
#define PSA_ITS_STORAGE_FILENAME_LENGTH \
( sizeof( PSA_ITS_STORAGE_PREFIX ) - 1 + /*prefix without terminating 0*/ \
16 + /*UID (64-bit number in hex)*/ \
16 + /*UID (64-bit number in hex)*/ \
sizeof( PSA_ITS_STORAGE_SUFFIX ) - 1 + /*suffix without terminating 0*/ \
1 /*terminating null byte*/ )
@ -88,8 +87,8 @@ static void psa_its_fill_filename( psa_storage_uid_t uid, char *filename )
mbedtls_snprintf( filename, PSA_ITS_STORAGE_FILENAME_LENGTH,
"%s" PSA_ITS_STORAGE_FILENAME_PATTERN "%s",
PSA_ITS_STORAGE_PREFIX,
(unsigned long) ( uid >> 32 ),
(unsigned long) ( uid & 0xffffffff ),
(unsigned) ( uid >> 32 ),
(unsigned) ( uid & 0xffffffff ),
PSA_ITS_STORAGE_SUFFIX );
}