85 static void sha256_compress(struct hash_state * md, const unsigned char *buf)  in sha256_compress()  argument
93         S[i] = md->sha256.state[i];  in sha256_compress()
115         md->sha256.state[i] = md->sha256.state[i] + S[i];  in sha256_compress()
119 static void sha256_init(struct hash_state * md)  in sha256_init()  argument
121     md->sha256.curlen = 0;  in sha256_init()
122     md->sha256.length = 0;  in sha256_init()
123     md->sha256.state[0] = 0x6A09E667UL;  in sha256_init()
124     md->sha256.state[1] = 0xBB67AE85UL;  in sha256_init()
125     md->sha256.state[2] = 0x3C6EF372UL;  in sha256_init()
126     md->sha256.state[3] = 0xA54FF53AUL;  in sha256_init()
127     md->sha256.state[4] = 0x510E527FUL;  in sha256_init()
128     md->sha256.state[5] = 0x9B05688CUL;  in sha256_init()
129     md->sha256.state[6] = 0x1F83D9ABUL;  in sha256_init()
130     md->sha256.state[7] = 0x5BE0CD19UL;  in sha256_init()
135 static void sha256_process(struct hash_state * md, const unsigned char *in, unsigned long inlen)  in sha256_process()  argument
140 	    if (md->sha256.curlen == 0 && inlen >= SHA256_BLOCKSIZE) {  in sha256_process()
141 		    sha256_compress(md, in);  in sha256_process()
142 		    md->sha256.length += SHA256_BLOCKSIZE * 8;  in sha256_process()
146 		    n = MIN(inlen, (SHA256_BLOCKSIZE - md->sha256.curlen));  in sha256_process()
147 		    memcpy(md->sha256.buf + md->sha256.curlen, in, (size_t)n);  in sha256_process()
148 		    md->sha256.curlen += n;  in sha256_process()
151 		    if (md->sha256.curlen == SHA256_BLOCKSIZE) {  in sha256_process()
152 			    sha256_compress(md, md->sha256.buf);  in sha256_process()
153 			    md->sha256.length += 8*SHA256_BLOCKSIZE;  in sha256_process()
154 			    md->sha256.curlen = 0;  in sha256_process()
161 static void sha256_done(struct hash_state * md, unsigned char *out)  in sha256_done()  argument
166     md->sha256.length += md->sha256.curlen * 8;  in sha256_done()
169     md->sha256.buf[md->sha256.curlen++] = (unsigned char)0x80;  in sha256_done()
175     if (md->sha256.curlen > 56) {  in sha256_done()
176         while (md->sha256.curlen < 64) {  in sha256_done()
177             md->sha256.buf[md->sha256.curlen++] = (unsigned char)0;  in sha256_done()
179         sha256_compress(md, md->sha256.buf);  in sha256_done()
180         md->sha256.curlen = 0;  in sha256_done()
184     while (md->sha256.curlen < 56) {  in sha256_done()
185         md->sha256.buf[md->sha256.curlen++] = (unsigned char)0;  in sha256_done()
189     STORE64H(md->sha256.length, md->sha256.buf+56);  in sha256_done()
190     sha256_compress(md, md->sha256.buf);  in sha256_done()
194         STORE32H(md->sha256.state[i], out+(4*i));  in sha256_done()
201 	struct hash_state md;  in ext2fs_sha256()  local
203 	sha256_init(&md);  in ext2fs_sha256()
204 	sha256_process(&md, in, in_size);  in ext2fs_sha256()
205 	sha256_done(&md, out);  in ext2fs_sha256()