[PATCH v6 1/2] cache.h: eliminate SHA-1 deprecation warnings on Mac OS X

[PATCH v6 1/2] cache.h: eliminate SHA-1 deprecation warnings on Mac OS X

[David Aguilar]

Mac OS X 10.8 Mountain Lion prints warnings when building git:

	warning: 'SHA1_Init' is deprecated
	(declared at /usr/include/openssl/sha.h:121)

Silence the warnings by using the CommonCrytpo SHA-1
functions for SHA1_Init(), SHA1_Update(), and SHA1_Final().

Add a NO_COMMON_DIGEST_FOR_OPENSSL option to the Makefile to allow
users to opt out of using this library.  When defined, Git will
use OpenSSL instead.

COMMON_DIGEST_FOR_OPENSSL is defined to enable the OpenSSL
compatibility macros in CommonDigest.h.

Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: David Aguilar <davvid@gmail.com>
---
Changes since last time:

Name the Makefile variable after the #define for consistency.

 Makefile | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Makefile b/Makefile
index f698c1a..b0eb949 100644
--- a/Makefile
+++ b/Makefile
@@ -137,6 +137,10 @@ all::
 # specify your own (or DarwinPort's) include directories and
 # library directories by defining CFLAGS and LDFLAGS appropriately.
 #
+# Define NO_COMMON_DIGEST_FOR_OPENSSL if you are building on Darwin/Mac OS X
+# and do not want to use Apple's CommonCrypto library.  This allows you to
+# provide your own OpenSSL library, for example from MacPorts.
+#
 # Define BLK_SHA1 environment variable to make use of the bundled
 # optimized C SHA1 routine.
 #
@@ -1054,6 +1058,9 @@ ifeq ($(uname_S),Darwin)
 			BASIC_LDFLAGS += -L/opt/local/lib
 		endif
 	endif
+	ifndef NO_COMMON_DIGEST_FOR_OPENSSL
+		COMMON_DIGEST_FOR_OPENSSL = YesPlease
+	endif
 	NO_REGEX = YesPlease
 	PTHREAD_LIBS =
 endif
@@ -1389,10 +1396,16 @@ ifdef PPC_SHA1
 	LIB_OBJS += ppc/sha1.o ppc/sha1ppc.o
 	LIB_H += ppc/sha1.h
 else
+ifdef COMMON_DIGEST_FOR_OPENSSL
+	BASIC_CFLAGS += -DCOMMON_DIGEST_FOR_OPENSSL
+	SHA1_HEADER = <CommonCrypto/CommonDigest.h>
+else
 	SHA1_HEADER = <openssl/sha.h>
 	EXTLIBS += $(LIB_4_CRYPTO)
 endif
 endif
+endif
+
 ifdef NO_PERL_MAKEMAKER
 	export NO_PERL_MAKEMAKER
 endif
-- 
1.8.3.rc2.3.g81576a6

[PATCH v6 2/2] imap-send: eliminate HMAC deprecation warnings on Mac OS X

[David Aguilar]

Mac OS X 10.8 Mountain Lion warns that HMAC_Init() and friends
are deprecated.  Detect the COMMON_CRYPTO_FOR_OPENSSL definition
and use CommonCrypto's HMAC functions to eliminate the warnings.

Signed-off-by: David Aguilar <davvid@gmail.com>
---
Changes since last time: None.

 imap-send.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/imap-send.c b/imap-send.c
index d9bcfb4..96012b1 100644
--- a/imap-send.c
+++ b/imap-send.c
@@ -29,8 +29,18 @@
 #ifdef NO_OPENSSL
 typedef void *SSL;
 #else
+#ifdef COMMON_DIGEST_FOR_OPENSSL
+#include <CommonCrypto/CommonHMAC.h>
+#define HMAC_CTX CCHmacContext
+#define HMAC_Init(hmac, key, len, algo) CCHmacInit(hmac, algo, key, len)
+#define HMAC_Update CCHmacUpdate
+#define HMAC_Final(hmac, hash, ptr) CCHmacFinal(hmac, hash)
+#define HMAC_CTX_cleanup
+#define EVP_md5() kCCHmacAlgMD5
+#else
 #include <openssl/evp.h>
 #include <openssl/hmac.h>
+#endif
 #include <openssl/x509v3.h>
 #endif
 
-- 
1.8.3.rc2.3.g81576a6

Re: [PATCH v6 1/2] cache.h: eliminate SHA-1 deprecation warnings on Mac OS X

[Junio C Hamano]

David Aguilar <davvid@gmail.com> writes:

> Mac OS X 10.8 Mountain Lion prints warnings when building git:
>
> 	warning: 'SHA1_Init' is deprecated
> 	(declared at /usr/include/openssl/sha.h:121)
>
> Silence the warnings by using the CommonCrytpo SHA-1
> functions for SHA1_Init(), SHA1_Update(), and SHA1_Final().
>
> Add a NO_COMMON_DIGEST_FOR_OPENSSL option to the Makefile to allow
> users to opt out of using this library.  When defined, Git will
> use OpenSSL instead.
>
> COMMON_DIGEST_FOR_OPENSSL is defined to enable the OpenSSL
> compatibility macros in CommonDigest.h.

This symbol will also cover not just SHA but also HMAC, would it
make more sense to call it COMMON_CRYPTO_FOR_OPENSSL?  After all,
that is what Apple calls this library, no?


>
> Helped-by: Eric Sunshine <sunshine@sunshineco.com>
> Helped-by: Torsten Bögershausen <tboegi@web.de>
> Signed-off-by: David Aguilar <davvid@gmail.com>
> ---
> Changes since last time:
>
> Name the Makefile variable after the #define for consistency.
>
>  Makefile | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
>
> diff --git a/Makefile b/Makefile
> index f698c1a..b0eb949 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -137,6 +137,10 @@ all::
>  # specify your own (or DarwinPort's) include directories and
>  # library directories by defining CFLAGS and LDFLAGS appropriately.
>  #
> +# Define NO_COMMON_DIGEST_FOR_OPENSSL if you are building on Darwin/Mac OS X
> +# and do not want to use Apple's CommonCrypto library.  This allows you to
> +# provide your own OpenSSL library, for example from MacPorts.
> +#
>  # Define BLK_SHA1 environment variable to make use of the bundled
>  # optimized C SHA1 routine.
>  #
> @@ -1054,6 +1058,9 @@ ifeq ($(uname_S),Darwin)
>  			BASIC_LDFLAGS += -L/opt/local/lib
>  		endif
>  	endif
> +	ifndef NO_COMMON_DIGEST_FOR_OPENSSL
> +		COMMON_DIGEST_FOR_OPENSSL = YesPlease
> +	endif
>  	NO_REGEX = YesPlease
>  	PTHREAD_LIBS =
>  endif
> @@ -1389,10 +1396,16 @@ ifdef PPC_SHA1
>  	LIB_OBJS += ppc/sha1.o ppc/sha1ppc.o
>  	LIB_H += ppc/sha1.h
>  else
> +ifdef COMMON_DIGEST_FOR_OPENSSL
> +	BASIC_CFLAGS += -DCOMMON_DIGEST_FOR_OPENSSL
> +	SHA1_HEADER = <CommonCrypto/CommonDigest.h>
> +else
>  	SHA1_HEADER = <openssl/sha.h>
>  	EXTLIBS += $(LIB_4_CRYPTO)
>  endif
>  endif
> +endif
> +
>  ifdef NO_PERL_MAKEMAKER
>  	export NO_PERL_MAKEMAKER
>  endif

Re: [PATCH v6 2/2] imap-send: eliminate HMAC deprecation warnings on Mac OS X

[Junio C Hamano]

David Aguilar <davvid@gmail.com> writes:

> Mac OS X 10.8 Mountain Lion warns that HMAC_Init() and friends
> are deprecated.  Detect the COMMON_CRYPTO_FOR_OPENSSL definition

Ahh, I think you meant to use that name but forgot to adjust the
symbol you use in the patch ;-)

I'll queue with s/COMMON_DIGEST_FOR_OPENSSL/COMMON_CRYPTO_FOR_OPENSSL/;

> and use CommonCrypto's HMAC functions to eliminate the warnings.
>
> Signed-off-by: David Aguilar <davvid@gmail.com>
> ---
> Changes since last time: None.
>
>  imap-send.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)
>
> diff --git a/imap-send.c b/imap-send.c
> index d9bcfb4..96012b1 100644
> --- a/imap-send.c
> +++ b/imap-send.c
> @@ -29,8 +29,18 @@
>  #ifdef NO_OPENSSL
>  typedef void *SSL;
>  #else
> +#ifdef COMMON_DIGEST_FOR_OPENSSL
> +#include <CommonCrypto/CommonHMAC.h>
> +#define HMAC_CTX CCHmacContext
> +#define HMAC_Init(hmac, key, len, algo) CCHmacInit(hmac, algo, key, len)
> +#define HMAC_Update CCHmacUpdate
> +#define HMAC_Final(hmac, hash, ptr) CCHmacFinal(hmac, hash)
> +#define HMAC_CTX_cleanup
> +#define EVP_md5() kCCHmacAlgMD5
> +#else
>  #include <openssl/evp.h>
>  #include <openssl/hmac.h>
> +#endif
>  #include <openssl/x509v3.h>
>  #endif

Re: [PATCH v6 2/2] imap-send: eliminate HMAC deprecation warnings on Mac OS X

[David Aguilar]

On Wed, May 15, 2013 at 5:39 PM, Junio C Hamano <gitster@pobox.com> wrote:
> David Aguilar <davvid@gmail.com> writes:
>
>> Mac OS X 10.8 Mountain Lion warns that HMAC_Init() and friends
>> are deprecated.  Detect the COMMON_CRYPTO_FOR_OPENSSL definition
>
> Ahh, I think you meant to use that name but forgot to adjust the
> symbol you use in the patch ;-)
>
> I'll queue with s/COMMON_DIGEST_FOR_OPENSSL/COMMON_CRYPTO_FOR_OPENSSL/;

The symbol in Apple's header is COMMON_DIGEST_FOR_OPENSSL.

I rebased this patch for so many bikesheds I was bound to screw up the
commit message ;-)

>> diff --git a/imap-send.c b/imap-send.c
>> index d9bcfb4..96012b1 100644
>> --- a/imap-send.c
>> +++ b/imap-send.c
>> @@ -29,8 +29,18 @@
>>  #ifdef NO_OPENSSL
>>  typedef void *SSL;
>>  #else
>> +#ifdef COMMON_DIGEST_FOR_OPENSSL

Yup, the symbol is fine.

>> +#include <CommonCrypto/CommonHMAC.h>
>> +#define HMAC_CTX CCHmacContext
>> +#define HMAC_Init(hmac, key, len, algo) CCHmacInit(hmac, algo, key, len)
>> +#define HMAC_Update CCHmacUpdate
>> +#define HMAC_Final(hmac, hash, ptr) CCHmacFinal(hmac, hash)
>> +#define HMAC_CTX_cleanup
>> +#define EVP_md5() kCCHmacAlgMD5
>> +#else
>>  #include <openssl/evp.h>
>>  #include <openssl/hmac.h>
>> +#endif
>>  #include <openssl/x509v3.h>
>>  #endif



--
David

Re: [PATCH v6 1/2] cache.h: eliminate SHA-1 deprecation warnings on Mac OS X

[David Aguilar]

On Wed, May 15, 2013 at 5:36 PM, Junio C Hamano <gitster@pobox.com> wrote:
> David Aguilar <davvid@gmail.com> writes:
>
>> Mac OS X 10.8 Mountain Lion prints warnings when building git:
>>
>>       warning: 'SHA1_Init' is deprecated
>>       (declared at /usr/include/openssl/sha.h:121)
>>
>> Silence the warnings by using the CommonCrytpo SHA-1
>> functions for SHA1_Init(), SHA1_Update(), and SHA1_Final().
>>
>> Add a NO_COMMON_DIGEST_FOR_OPENSSL option to the Makefile to allow
>> users to opt out of using this library.  When defined, Git will
>> use OpenSSL instead.
>>
>> COMMON_DIGEST_FOR_OPENSSL is defined to enable the OpenSSL
>> compatibility macros in CommonDigest.h.
>
> This symbol will also cover not just SHA but also HMAC, would it
> make more sense to call it COMMON_CRYPTO_FOR_OPENSSL?  After all,
> that is what Apple calls this library, no?

They call it COMMON_DIGEST_FOR_OPENSSL.  weirdos,
but I guess they mean it's for the digest functions.

Thanks for catching the commit message typo.

>>
>> Helped-by: Eric Sunshine <sunshine@sunshineco.com>
>> Helped-by: Torsten Bögershausen <tboegi@web.de>
>> Signed-off-by: David Aguilar <davvid@gmail.com>
>> ---
>> Changes since last time:
>>
>> Name the Makefile variable after the #define for consistency.
>>
>>  Makefile | 13 +++++++++++++
>>  1 file changed, 13 insertions(+)
>>
>> diff --git a/Makefile b/Makefile
>> index f698c1a..b0eb949 100644
>> --- a/Makefile
>> +++ b/Makefile
>> @@ -137,6 +137,10 @@ all::
>>  # specify your own (or DarwinPort's) include directories and
>>  # library directories by defining CFLAGS and LDFLAGS appropriately.
>>  #
>> +# Define NO_COMMON_DIGEST_FOR_OPENSSL if you are building on Darwin/Mac OS X
>> +# and do not want to use Apple's CommonCrypto library.  This allows you to
>> +# provide your own OpenSSL library, for example from MacPorts.
>> +#
>>  # Define BLK_SHA1 environment variable to make use of the bundled
>>  # optimized C SHA1 routine.
>>  #
>> @@ -1054,6 +1058,9 @@ ifeq ($(uname_S),Darwin)
>>                       BASIC_LDFLAGS += -L/opt/local/lib
>>               endif
>>       endif
>> +     ifndef NO_COMMON_DIGEST_FOR_OPENSSL
>> +             COMMON_DIGEST_FOR_OPENSSL = YesPlease
>> +     endif
>>       NO_REGEX = YesPlease
>>       PTHREAD_LIBS =
>>  endif
>> @@ -1389,10 +1396,16 @@ ifdef PPC_SHA1
>>       LIB_OBJS += ppc/sha1.o ppc/sha1ppc.o
>>       LIB_H += ppc/sha1.h
>>  else
>> +ifdef COMMON_DIGEST_FOR_OPENSSL
>> +     BASIC_CFLAGS += -DCOMMON_DIGEST_FOR_OPENSSL
>> +     SHA1_HEADER = <CommonCrypto/CommonDigest.h>
>> +else
>>       SHA1_HEADER = <openssl/sha.h>
>>       EXTLIBS += $(LIB_4_CRYPTO)
>>  endif
>>  endif
>> +endif
>> +
>>  ifdef NO_PERL_MAKEMAKER
>>       export NO_PERL_MAKEMAKER
>>  endif



--
David

Re: [PATCH v6 2/2] imap-send: eliminate HMAC deprecation warnings on Mac OS X

[Junio C Hamano]

David Aguilar <davvid@gmail.com> writes:

> On Wed, May 15, 2013 at 5:39 PM, Junio C Hamano <gitster@pobox.com> wrote:
>> David Aguilar <davvid@gmail.com> writes:
>>
>>> Mac OS X 10.8 Mountain Lion warns that HMAC_Init() and friends
>>> are deprecated.  Detect the COMMON_CRYPTO_FOR_OPENSSL definition
>>
>> Ahh, I think you meant to use that name but forgot to adjust the
>> symbol you use in the patch ;-)
>>
>> I'll queue with s/COMMON_DIGEST_FOR_OPENSSL/COMMON_CRYPTO_FOR_OPENSSL/;
>
> The symbol in Apple's header is COMMON_DIGEST_FOR_OPENSSL.

Sigh.