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3964cbbb5c
Some distros provide SHA1 collision-detect code as a shared library. It's the same code as we have in git tree (but may be with a different init default for hash), and git can link with it as well; at least, it may make maintenance easier, according to our security guys. This patch allows user to build git linking with the external sha1dc library instead of the built-in code. User needs to define DC_SHA1_EXTERNAL explicitly. As default without it, the built-in sha1dc code is used like before. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
23 lines
618 B
C
23 lines
618 B
C
/* Plumbing with collition-detecting SHA1 code */
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#ifdef DC_SHA1_SUBMODULE
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#include "sha1collisiondetection/lib/sha1.h"
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#elif defined(DC_SHA1_EXTERNAL)
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#include <sha1dc/sha1.h>
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#else
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#include "sha1dc/sha1.h"
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#endif
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#ifdef DC_SHA1_EXTERNAL
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void git_SHA1DCInit(SHA1_CTX *);
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#else
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#define git_SHA1DCInit SHA1DCInit
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#endif
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void git_SHA1DCFinal(unsigned char [20], SHA1_CTX *);
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void git_SHA1DCUpdate(SHA1_CTX *ctx, const void *data, unsigned long len);
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#define platform_SHA_CTX SHA1_CTX
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#define platform_SHA1_Init git_SHA1DCInit
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#define platform_SHA1_Update git_SHA1DCUpdate
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#define platform_SHA1_Final git_SHA1DCFinal
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