[OpenSSL-1.0.2] TNF local patch - gcc -fstack-protector + alloca(3)

[Takehiko NOZAKI]

TNF local patch audit

• dist/crypto/bn/bn_exp.c
• dist/engines/e_padlock.c

original commit message:

http://mail-index.netbsd.org/source-changes/2012/07/27/msg036000.html

http://mail-index.netbsd.org/source-changes/2012/07/30/msg036083.html

http://mail-index.netbsd.org/source-changes/2012/07/30/msg036084.html

[Takehiko NOZAKI]

i don't like alloca(3) for security reason. but alloca(3) is ok for using with stack protector.

[Takehiko NOZAKI]

N/vax fail to build.

--- bn_exp.o ---
#   compile  libcrypto/bn_exp.o
/usr/tooldir/bin/vax--netbsdelf-gcc -O1 -fgcse -fstrength-reduce -fgcse-after-reload -std=gnu99  -Werror   -fstack-protector -Wstack-protector   --param ssp-buffer-size=1   --sysroot=/usr/src/obj.vax/destdir.vax -Dlibcrypto -I. -I/usr/src/crypto/external/bsd/openssl/dist/crypto -I/usr/src/crypto/external/bsd/openssl/dist -I/usr/src/crypto/external/bsd/openssl/dist/crypto/asn1 -I/usr/src/crypto/external/bsd/openssl/dist/crypto/evp -I/usr/src/crypto/external/bsd/openssl/dist/crypto/modes -DDSO_DLFCN -DHAVE_DLFCN_H  -D_FORTIFY_SOURCE=2 -c   -I/usr/src/crypto/external/bsd/openssl/dist/crypto/bn /usr/src/crypto/external/bsd/openssl/dist/crypto/bn/bn_exp.c -o bn_exp.o
cc1: warnings being treated as errors
/usr/src/crypto/external/bsd/openssl/dist/crypto/bn/bn_exp.c: In function 'BN_mod_exp_mont_consttime':
/usr/src/crypto/external/bsd/openssl/dist/crypto/bn/bn_exp.c:698: warning: not protecting local variables: variable length buffer
*** [bn_exp.o] Error code 1
nbmake: stopped in /usr/src/crypto/external/bsd/openssl/lib/libcrypto

[Takehiko NOZAKI]

BUGFIX: Issue #148 - fix build error caused by alloca(3). it may cause build failure when specified -fstack-protector -Wstack-protector -Werror, so shut up warnig.

→ <<cset b5c15fbc09bb5d695c0948f36277989094159cb0>>