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60 lines
1.1 KiB
C
60 lines
1.1 KiB
C
/* j/5/sha1.c
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**
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*/
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#include "all.h"
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#if defined(U3_OS_osx)
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#include <CommonCrypto/CommonDigest.h>
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#else
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#include <openssl/sha.h>
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#endif
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/* functions
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*/
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u3_noun
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u3qe_sha1(u3_atom wid, u3_atom dat)
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{
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c3_assert(_(u3a_is_cat(wid)));
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dat = u3qc_rev(3, wid, dat);
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c3_y* fat_y = u3a_malloc(wid + 1);
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u3r_bytes(0, wid, fat_y, dat);
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{
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c3_y dig_y[32];
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#if defined(U3_OS_osx)
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CC_SHA1_CTX ctx_h;
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CC_SHA1_Init(&ctx_h);
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CC_SHA1_Update(&ctx_h, fat_y, wid);
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CC_SHA1_Final(dig_y, &ctx_h);
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#else
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SHA_CTX ctx_h;
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SHA1_Init(&ctx_h);
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SHA1_Update(&ctx_h, fat_y, wid);
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SHA1_Final(dig_y, &ctx_h);
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#endif
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u3a_free(fat_y);
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u3z(dat);
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return u3kc_rev(3, 20, u3i_bytes(20, dig_y));
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}
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}
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u3_noun
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u3we_sha1(u3_noun cor)
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{
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u3_noun wid, dat;
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if ( (c3n == u3r_mean(cor, u3x_sam_2, &wid, u3x_sam_3, &dat, 0)) ||
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(c3n == u3ud(wid)) ||
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(c3n == u3a_is_cat(wid)) ||
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(c3n == u3ud(dat)) )
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{
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return u3m_bail(c3__exit);
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}
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else {
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return u3qe_sha1(wid, dat);
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}
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}
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