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pkwrite.c: add a cleanup label to save code size

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Signed-off-by: Yanray Wang <yanray.wang@arm.com>
This commit is contained in:
Yanray Wang
2023-08-11 15:52:09 +08:00
parent 7bbca1363f
commit a8f00508fe
1 changed files with 12 additions and 12 deletions
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24
library/pkwrite.c
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@ -583,19 +583,19 @@ int mbedtls_pk_write_pubkey_pem(mbedtls_pk_context *key, unsigned char *buf, siz
if ((ret = mbedtls_pk_write_pubkey_der(key, output_buf,
PUB_DER_MAX_BYTES)) < 0) {
free(output_buf);
return ret;
goto cleanup;
}
if ((ret = mbedtls_pem_write_buffer(PEM_BEGIN_PUBLIC_KEY, PEM_END_PUBLIC_KEY,
output_buf + PUB_DER_MAX_BYTES - ret,
ret, buf, size, &olen)) != 0) {
free(output_buf);
return ret;
goto cleanup;
}
ret = 0;
cleanup:
free(output_buf);
return 0;
return ret;
}
int mbedtls_pk_write_key_pem(mbedtls_pk_context *key, unsigned char *buf, size_t size)
@ -613,8 +613,7 @@ int mbedtls_pk_write_key_pem(mbedtls_pk_context *key, unsigned char *buf, size_t
PK_VALIDATE_RET(buf != NULL || size == 0);
if ((ret = mbedtls_pk_write_key_der(key, output_buf, PRV_DER_MAX_BYTES)) < 0) {
free(output_buf);
return ret;
goto cleanup;
}
#if defined(MBEDTLS_RSA_C)
@ -630,19 +629,20 @@ int mbedtls_pk_write_key_pem(mbedtls_pk_context *key, unsigned char *buf, size_t
} else
#endif
{
free(output_buf);
return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
ret = MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
goto cleanup;
}
if ((ret = mbedtls_pem_write_buffer(begin, end,
output_buf + PRV_DER_MAX_BYTES - ret,
ret, buf, size, &olen)) != 0) {
free(output_buf);
return ret;
goto cleanup;
}
ret = 0;
cleanup:
free(output_buf);
return 0;
return ret;
}
#endif /* MBEDTLS_PEM_WRITE_C */