Merge pull request #5250 from bojidar-bg/add-sha256
Add sha256 to String and File/FileAccess.
This commit is contained in:
Juan Linietsky
GitHub
commit
ebbd705b63
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@ -1558,6 +1558,12 @@ String _File::get_md5(const String& p_path) const {
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}
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String _File::get_sha256(const String& p_path) const {
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return FileAccess::get_sha256(p_path);
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}
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String _File::get_line() const{
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@ -1748,6 +1754,7 @@ void _File::_bind_methods() {
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ObjectTypeDB::bind_method(_MD("get_line"),&_File::get_line);
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ObjectTypeDB::bind_method(_MD("get_as_text"),&_File::get_as_text);
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ObjectTypeDB::bind_method(_MD("get_md5","path"),&_File::get_md5);
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ObjectTypeDB::bind_method(_MD("get_sha256","path"),&_File::get_md5);
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ObjectTypeDB::bind_method(_MD("get_endian_swap"),&_File::get_endian_swap);
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ObjectTypeDB::bind_method(_MD("set_endian_swap","enable"),&_File::set_endian_swap);
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ObjectTypeDB::bind_method(_MD("get_error:Error"),&_File::get_error);
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@ -380,6 +380,7 @@ public:
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String get_line() const;
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String get_as_text() const;
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String get_md5(const String& p_path) const;
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String get_sha256(const String& p_path) const;
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/**< use this for files WRITTEN in _big_ endian machines (ie, amiga/mac)
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* It's not about the current CPU type but file formats.
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@ -0,0 +1,5 @@
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SHA256
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======
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SHA-256 implementation to compliment a portable byte-oriented AES-256
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implementation in C at http://www.literatecode.com/aes256
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@ -0,0 +1,245 @@
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/*
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* SHA-256 implementation.
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*
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* Copyright (c) 2010 Ilya O. Levin, http://www.literatecode.com
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#define SWAP_BYTES
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// #define USE_STD_MEMCPY
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// #define SELF_TEST
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#ifdef USE_STD_MEMCPY
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#include <string.h>
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#endif
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#include "sha256.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define RL(x,n) (((x) << n) | ((x) >> (32 - n)))
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#define RR(x,n) (((x) >> n) | ((x) << (32 - n)))
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#define S0(x) (RR((x), 2) ^ RR((x),13) ^ RR((x),22))
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#define S1(x) (RR((x), 6) ^ RR((x),11) ^ RR((x),25))
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#define G0(x) (RR((x), 7) ^ RR((x),18) ^ ((x) >> 3))
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#define G1(x) (RR((x),17) ^ RR((x),19) ^ ((x) >> 10))
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#ifdef SWAP_BYTES
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#define BSWP(x,y) _bswapw((uint32_t *)(x), (uint32_t)(y))
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#else
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#define BSWP(p,n)
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#endif
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#ifdef USE_STD_MEMCPY
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#define MEMCP(x,y,z) memcpy((x),(y),(z))
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#else
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#define MEMCP(x,y,z) _memcp((x),(y),(z))
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#endif
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#ifndef __cdecl
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#define __cdecl
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#endif
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static const uint32_t K[64] = {
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0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
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0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
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0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
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0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
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0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
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0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
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0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
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0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
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0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
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0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
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0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
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0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
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0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
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0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
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0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
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0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
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};
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/* -------------------------------------------------------------------------- */
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static void _bswapw(uint32_t *p, uint32_t i)
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{
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while (i--) p[i] = (RR(p[i],24) & 0x00ff00ff) | (RR(p[i],8) & 0xff00ff00);
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} /* _bswapw */
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/* -------------------------------------------------------------------------- */
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#ifndef USE_STD_MEMCPY
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void * __cdecl _memcp (void *d, const void *s, uint32_t sz)
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{
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void *rv = d;
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while (sz--) *(char *)d = *(char *)s, d = (char *)d + 1, s = (char *)s + 1;
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return(rv);
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} /* _memcp */
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#endif
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/* -------------------------------------------------------------------------- */
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static void _rtrf(uint32_t *b, uint32_t *p, uint32_t i, uint32_t j)
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{
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#define B(x, y) b[(x-y) & 7]
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#define P(x, y) p[(x+y) & 15]
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B(7,i) += (j ? (p[i & 15] += G1(P(i,14)) + P(i,9) + G0(P(i,1))) : p[i & 15])
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+ K[i+j] + S1(B(4,i))
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+ (B(6,i) ^ (B(4,i) & (B(5,i) ^ B(6,i))));
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B(3,i) += B(7,i);
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B(7,i) += S0(B(0,i)) + ( (B(0,i) & B(1,i)) | (B(2,i) & (B(0,i) ^ B(1,i))) );
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#undef P
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#undef B
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} /* _rtrf */
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/* -------------------------------------------------------------------------- */
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static void _hash(sha256_context *ctx)
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{
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uint32_t b[8], *p, j;
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b[0] = ctx->hash[0]; b[1] = ctx->hash[1]; b[2] = ctx->hash[2];
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b[3] = ctx->hash[3]; b[4] = ctx->hash[4]; b[5] = ctx->hash[5];
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b[6] = ctx->hash[6]; b[7] = ctx->hash[7];
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for (p = ctx->buf, j = 0; j < 64; j += 16)
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_rtrf(b, p, 0, j), _rtrf(b, p, 1, j), _rtrf(b, p, 2, j),
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_rtrf(b, p, 3, j), _rtrf(b, p, 4, j), _rtrf(b, p, 5, j),
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_rtrf(b, p, 6, j), _rtrf(b, p, 7, j), _rtrf(b, p, 8, j),
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_rtrf(b, p, 9, j), _rtrf(b, p, 10, j), _rtrf(b, p, 11, j),
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_rtrf(b, p, 12, j), _rtrf(b, p, 13, j), _rtrf(b, p, 14, j),
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_rtrf(b, p, 15, j);
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ctx->hash[0] += b[0]; ctx->hash[1] += b[1]; ctx->hash[2] += b[2];
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ctx->hash[3] += b[3]; ctx->hash[4] += b[4]; ctx->hash[5] += b[5];
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ctx->hash[6] += b[6]; ctx->hash[7] += b[7];
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} /* _hash */
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/* -------------------------------------------------------------------------- */
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void sha256_init(sha256_context ctx[1])
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{
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ctx->len[0] = ctx->len[1] = 0;
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ctx->hash[0] = 0x6a09e667; ctx->hash[1] = 0xbb67ae85;
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ctx->hash[2] = 0x3c6ef372; ctx->hash[3] = 0xa54ff53a;
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ctx->hash[4] = 0x510e527f; ctx->hash[5] = 0x9b05688c;
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ctx->hash[6] = 0x1f83d9ab; ctx->hash[7] = 0x5be0cd19;
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} /* sha256_init */
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/* -------------------------------------------------------------------------- */
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void sha256_hash(sha256_context *ctx, uint8_t *dat, uint32_t sz)
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{
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register uint32_t i = ctx->len[0] & 63, l, j;
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if ((ctx->len[0] += sz) < sz) ++(ctx->len[1]);
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for (j = 0, l = 64-i; sz >= l; j += l, sz -= l, l = 64, i = 0)
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{
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MEMCP(&ctx->buf[i], &dat[j], l);
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BSWP(ctx->buf, 16 );
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_hash(ctx);
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}
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MEMCP(&ctx->buf[i], &dat[j], sz);
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} /* _hash */
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/* -------------------------------------------------------------------------- */
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void sha256_done(sha256_context *ctx, uint8_t *buf)
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{
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uint32_t i = (uint32_t)(ctx->len[0] & 63), j = ((~i) & 3) << 3;
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BSWP(ctx->buf, (i + 3) >> 2);
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ctx->buf[i >> 2] &= 0xffffff80 << j; /* add padding */
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ctx->buf[i >> 2] |= 0x00000080 << j;
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if (i < 56) i = (i >> 2) + 1;
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else ctx->buf[15] ^= (i < 60) ? ctx->buf[15] : 0, _hash(ctx), i = 0;
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while (i < 14) ctx->buf[i++] = 0;
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ctx->buf[14] = (ctx->len[1] << 3)|(ctx->len[0] >> 29); /* add length */
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ctx->buf[15] = ctx->len[0] << 3;
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_hash(ctx);
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for (i = 0; i < 32; i++)
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ctx->buf[i % 16] = 0, /* may remove this line in case of a DIY cleanup */
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buf[i] = (uint8_t)(ctx->hash[i >> 2] >> ((~i & 3) << 3));
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} /* sha256_done */
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#ifdef SELF_TEST
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#pragma warning (push, 0)
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#pragma warning(pop)
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char *buf[] = {
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"",
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"e3b0c442 98fc1c14 9afbf4c8 996fb924 27ae41e4 649b934c a495991b 7852b855",
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"abc",
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"ba7816bf 8f01cfea 414140de 5dae2223 b00361a3 96177a9c b410ff61 f20015ad",
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"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
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"248d6a61 d20638b8 e5c02693 0c3e6039 a33ce459 64ff2167 f6ecedd4 19db06c1",
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"The quick brown fox jumps over the lazy dog",
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"d7a8fbb3 07d78094 69ca9abc b0082e4f 8d5651e4 6d3cdb76 2d02d0bf 37c9e592",
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"The quick brown fox jumps over the lazy cog", /* avalanche effect test */
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"e4c4d8f3 bf76b692 de791a17 3e053211 50f7a345 b46484fe 427f6acc 7ecc81be",
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"bhn5bjmoniertqea40wro2upyflkydsibsk8ylkmgbvwi420t44cq034eou1szc1k0mk46oeb7ktzmlxqkbte2sy",
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"9085df2f 02e0cc45 5928d0f5 1b27b4bf 1d9cd260 a66ed1fd a11b0a3f f5756d99"
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};
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int main(int argc, char *argv[])
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{
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sha256_context ctx;
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uint8_t hv[32];
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uint32_t i, j;
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for (j = 0; j < (sizeof(buf)/sizeof(buf[0])); j += 2)
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{
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sha256_init(&ctx);
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sha256_hash(&ctx, (uint8_t *)buf[j], (uint32_t)strlen(buf[j]));
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sha256_done(&ctx, hv);
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printf("input = %s\ndigest: %s\nresult: ", buf[j], buf[j+1]);
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for (i = 0; i < 32; i++) printf("%02x%s", hv[i], ((i%4)==3)?" ":"");
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printf("\n\n");
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}
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for (j = 1; j < (uint32_t)argc; j++)
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{
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printf("argv[%d]: %s\nresult: ", (int)j, argv[j]);
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sha256_init(&ctx);
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sha256_hash(&ctx, (uint8_t *)argv[j], (uint32_t)strlen(argv[j]));
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sha256_done(&ctx, hv);
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for (i = 0; i < 32; i++) printf("%02x%s", hv[i], ((i%4)==3)?" ":"");
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printf("\n\n");
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}
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return 0;
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} /* main */
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#endif
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#ifdef __cplusplus
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}
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#endif
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@ -0,0 +1,50 @@
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/*
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* SHA-256 implementation.
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*
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* Copyright (c) 2010 Ilya O. Levin, http://www.literatecode.com
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
|
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifdef _MSC_VER
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#ifndef uint8_t
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typedef unsigned __int8 uint8_t;
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#endif
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#ifndef uint32_t
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typedef unsigned __int32 uint32_t;
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#endif
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#ifndef uint64_t
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typedef __int64 int64_t;
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typedef unsigned __int64 uint64_t;
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#endif
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#else
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#include <stdint.h>
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#endif
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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typedef struct {
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uint32_t buf[16];
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uint32_t hash[8];
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uint32_t len[2];
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} sha256_context;
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void sha256_init(sha256_context *);
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void sha256_hash(sha256_context *, uint8_t * /* data */, uint32_t /* len */);
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void sha256_done(sha256_context *, uint8_t * /* hash */);
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#ifdef __cplusplus
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}
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#endif
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@ -31,6 +31,7 @@
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#include "os/os.h"
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#include "core/io/marshalls.h"
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#include "io/md5.h"
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#include "io/sha256.h"
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#include "core/io/file_access_pack.h"
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FileAccess::CreateFunc FileAccess::create_func[ACCESS_MAX]={0,0};
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@ -517,6 +518,38 @@ String FileAccess::get_md5(const String& p_file) {
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}
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String FileAccess::get_sha256(const String& p_file) {
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FileAccess *f=FileAccess::open(p_file,READ);
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if (!f)
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return String();
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sha256_context sha256;
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sha256_init(&sha256);
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unsigned char step[32768];
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while(true) {
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int br = f->get_buffer(step,32768);
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if (br>0) {
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sha256_hash(&sha256,step,br);
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}
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if (br < 4096)
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break;
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}
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unsigned char hash[32];
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sha256_done(&sha256, hash);
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memdelete(f);
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return String::hex_encode_buffer(hash, 32);
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}
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FileAccess::FileAccess() {
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endian_swap=false;
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@ -153,6 +153,7 @@ public:
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static bool is_backup_save_enabled() { return backup_save; };
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static String get_md5(const String& p_file);
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static String get_sha256(const String& p_file);
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static Vector<uint8_t> get_file_as_array(const String& p_path);
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@ -32,6 +32,7 @@
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#include "print_string.h"
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#include "math_funcs.h"
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#include "io/md5.h"
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#include "io/sha256.h"
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#include "ucaps.h"
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#include "color.h"
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#include "variant.h"
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@ -849,21 +850,23 @@ const CharType * String::c_str() const {
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}
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String String::md5(const uint8_t *p_md5) {
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return String::hex_encode_buffer(p_md5, 16);
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}
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|
||||
String String::hex_encode_buffer(const uint8_t *p_buffer, int p_len) {
|
||||
static const char hex[16]={'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'};
|
||||
|
||||
String ret;
|
||||
char v[2]={0,0};
|
||||
|
||||
for(int i=0;i<16;i++) {
|
||||
|
||||
static const char hex[16]={'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'};
|
||||
char v[2]={0,0};
|
||||
v[0]=hex[p_md5[i]>>4];
|
||||
for(int i=0;i<p_len;i++) {
|
||||
v[0]=hex[p_buffer[i]>>4];
|
||||
ret+=v;
|
||||
v[0]=hex[p_md5[i]&0xF];
|
||||
v[0]=hex[p_buffer[i]&0xF];
|
||||
ret+=v;
|
||||
}
|
||||
|
||||
return ret;
|
||||
|
||||
}
|
||||
|
||||
String String::chr(CharType p_char) {
|
||||
|
|
@ -2389,6 +2392,16 @@ String String::md5_text() const {
|
|||
return String::md5(ctx.digest);
|
||||
}
|
||||
|
||||
String String::sha256_text() const {
|
||||
CharString cs=utf8();
|
||||
unsigned char hash[32];
|
||||
sha256_context ctx;
|
||||
sha256_init(&ctx);
|
||||
sha256_hash(&ctx,(unsigned char*)cs.ptr(),cs.length());
|
||||
sha256_done(&ctx, hash);
|
||||
return String::hex_encode_buffer(hash, 32);
|
||||
}
|
||||
|
||||
Vector<uint8_t> String::md5_buffer() const {
|
||||
|
||||
CharString cs=utf8();
|
||||
|
|
|
|||
|
|
@ -140,6 +140,7 @@ public:
|
|||
static String num_int64(int64_t p_num,int base=10,bool capitalize_hex=false);
|
||||
static String chr(CharType p_char);
|
||||
static String md5(const uint8_t *p_md5);
|
||||
static String hex_encode_buffer(const uint8_t *p_buffer, int p_len);
|
||||
bool is_numeric() const;
|
||||
double to_double() const;
|
||||
float to_float() const;
|
||||
|
|
@ -193,6 +194,7 @@ public:
|
|||
uint32_t hash() const; /* hash the string */
|
||||
uint64_t hash64() const; /* hash the string */
|
||||
String md5_text() const;
|
||||
String sha256_text() const;
|
||||
Vector<uint8_t> md5_buffer() const;
|
||||
|
||||
inline bool empty() const { return length() == 0; }
|
||||
|
|
|
|||
|
|
@ -267,6 +267,7 @@ static void _call_##m_type##_##m_method(Variant& r_ret,Variant& p_self,const Var
|
|||
VCALL_LOCALMEM2(String,erase);
|
||||
VCALL_LOCALMEM0R(String,hash);
|
||||
VCALL_LOCALMEM0R(String,md5_text);
|
||||
VCALL_LOCALMEM0R(String,sha256_text);
|
||||
VCALL_LOCALMEM0R(String,md5_buffer);
|
||||
VCALL_LOCALMEM0R(String,empty);
|
||||
VCALL_LOCALMEM0R(String,is_abs_path);
|
||||
|
|
@ -1294,6 +1295,7 @@ _VariantCall::addfunc(Variant::m_vtype,Variant::m_ret,_SCS(#m_method),VCALL(m_cl
|
|||
ADDFUNC2(STRING,NIL,String,erase,INT,"pos",INT,"chars", varray());
|
||||
ADDFUNC0(STRING,INT,String,hash,varray());
|
||||
ADDFUNC0(STRING,STRING,String,md5_text,varray());
|
||||
ADDFUNC0(STRING,STRING,String,sha256_text,varray());
|
||||
ADDFUNC0(STRING,RAW_ARRAY,String,md5_buffer,varray());
|
||||
ADDFUNC0(STRING,BOOL,String,empty,varray());
|
||||
ADDFUNC0(STRING,BOOL,String,is_abs_path,varray());
|
||||
|
|
|
|||
Loading…
Reference in New Issue