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Use size_t cast for pointer subtractions

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Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
This commit is contained in:
Dave Rodgman
2023-11-04 12:20:09 +00:00
parent effdfe7409
commit e4a6f5a7ec
26 changed files with 99 additions and 98 deletions
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8
library/pem.c
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@@ -298,7 +298,7 @@ int mbedtls_pem_read_buffer(mbedtls_pem_context *ctx, const char *header, const
if (*end == '\n') {
end++;
}
*use_len = end - data;
*use_len = (size_t) (end - data);
enc = 0;
@@ -383,7 +383,7 @@ int mbedtls_pem_read_buffer(mbedtls_pem_context *ctx, const char *header, const
return MBEDTLS_ERR_PEM_INVALID_DATA;
}
ret = mbedtls_base64_decode(NULL, 0, &len, s1, s2 - s1);
ret = mbedtls_base64_decode(NULL, 0, &len, s1, (size_t) (s2 - s1));
if (ret == MBEDTLS_ERR_BASE64_INVALID_CHARACTER) {
return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PEM_INVALID_DATA, ret);
@@ -393,7 +393,7 @@ int mbedtls_pem_read_buffer(mbedtls_pem_context *ctx, const char *header, const
return MBEDTLS_ERR_PEM_ALLOC_FAILED;
}
if ((ret = mbedtls_base64_decode(buf, len, &len, s1, s2 - s1)) != 0) {
if ((ret = mbedtls_base64_decode(buf, len, &len, s1, (size_t) (s2 - s1))) != 0) {
mbedtls_zeroize_and_free(buf, len);
return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PEM_INVALID_DATA, ret);
}
@@ -508,7 +508,7 @@ int mbedtls_pem_write_buffer(const char *header, const char *footer,
p += strlen(footer);
*p++ = '\0';
*olen = p - buf;
*olen = (size_t) (p - buf);
/* Clean any remaining data previously written to the buffer */
memset(buf + *olen, 0, buf_len - *olen);