Hello, Got those kind of messages when compiling openssl 1.0.1: cbc128.c:175:6: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] *(size_t *)(tmp.c+n) ^ *(size_t *)(ivec+n); ^ gcc -I.. -I../.. -I../modes -I../asn1 -I../evp -I../../include -DOPENSSL_THREADS -D_REENTRANT -DDSO_DLFCN -DHAVE_DLFCN_H -Wa,--noexecstack -m64 -DL_ENDIAN -DTERMIO -O3 -Wall# gcc -I.. -I../.. -I../modes -I../asn1 -I../evp -I../../include -DOPENSSL_THREADS -D_REENTRANT -DDSO_DLFCN -DHAVE_DLFCN_H -Wa,--noexecstack -m64 -DL_ENDIAN -DTERMIO -O3 -Wall# cts128.c: In function ‘CRYPTO_cts128_encrypt’: cts128.c:114:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] *(size_t *)(tmp.c+n) = 0; ^ cts128.c: In function ‘CRYPTO_nistcts128_encrypt’: cts128.c:150:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] *(size_t *)(tmp.c+n) = 0; ^ cts128.c: In function ‘CRYPTO_cts128_decrypt_block’: cts128.c:181:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] *(size_t *)(tmp.c+n) = *(size_t *)(tmp.c+16+n); ^ cts128.c:181:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] cts128.c: In function ‘CRYPTO_nistcts128_decrypt_block’:
According to a few pages that's bad (ie. http://blog.qt.digia.com/blog/2011/06/10/type-punning-and-strict-aliasing/) maybe it should be fixed ? Matthieu. ______________________________________________________________________ OpenSSL Project http://www.openssl.org Development Mailing List openssl-dev@openssl.org Automated List Manager majord...@openssl.org
