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Skip call to memcpy if buffer length is zero

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This allows the copy functions to work when passed a (NULL, 0) buffer.

Signed-off-by: David Horstmann <david.horstmann@arm.com>
This commit is contained in:
David Horstmann 2023-11-15 17:33:47 +00:00
parent 1b7279a849
commit 777e74130f
1 changed files with 8 additions and 2 deletions
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6
library/psa_crypto.c
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@ -8462,7 +8462,9 @@ psa_status_t psa_crypto_copy_input(const uint8_t *input, size_t input_len,
return PSA_ERROR_CORRUPTION_DETECTED;
}
if (input_len > 0) {
memcpy(input_copy, input, input_len);
}
return PSA_SUCCESS;
}
@ -8486,7 +8488,11 @@ psa_status_t psa_crypto_copy_output(const uint8_t *output_copy, size_t output_co
if (output_len < output_copy_len) {
return PSA_ERROR_CORRUPTION_DETECTED;
}
if (output_copy_len > 0) {
memcpy(output, output_copy, output_copy_len);
}
return PSA_SUCCESS;
}