127 static int sha256_compress(struct sha256_state *md,  in sha256_compress()  argument
134     S[i] = md->state[i];  in sha256_compress()
158     md->state[i] = md->state[i] + S[i];  in sha256_compress()
163 static void SHA256_Init(struct sha256_state *md)  in SHA256_Init()  argument
165   md->curlen = 0;  in SHA256_Init()
166   md->length = 0;  in SHA256_Init()
167   md->state[0] = 0x6A09E667UL;  in SHA256_Init()
168   md->state[1] = 0xBB67AE85UL;  in SHA256_Init()
169   md->state[2] = 0x3C6EF372UL;  in SHA256_Init()
170   md->state[3] = 0xA54FF53AUL;  in SHA256_Init()
171   md->state[4] = 0x510E527FUL;  in SHA256_Init()
172   md->state[5] = 0x9B05688CUL;  in SHA256_Init()
173   md->state[6] = 0x1F83D9ABUL;  in SHA256_Init()
174   md->state[7] = 0x5BE0CD19UL;  in SHA256_Init()
178    @param md     The hash state
183 static int SHA256_Update(struct sha256_state *md,  in SHA256_Update()  argument
189   if(md->curlen > sizeof(md->buf))  in SHA256_Update()
192     if(md->curlen == 0 && inlen >= block_size) {  in SHA256_Update()
193       if(sha256_compress(md, (unsigned char *)in) < 0)  in SHA256_Update()
195       md->length += block_size * 8;  in SHA256_Update()
200       n = CURLMIN(inlen, (block_size - md->curlen));  in SHA256_Update()
201       memcpy(md->buf + md->curlen, in, n);  in SHA256_Update()
202       md->curlen += n;  in SHA256_Update()
205       if(md->curlen == block_size) {  in SHA256_Update()
206         if(sha256_compress(md, md->buf) < 0)  in SHA256_Update()
208         md->length += 8 * block_size;  in SHA256_Update()
209         md->curlen = 0;  in SHA256_Update()
217    @param md  The hash state
222                         struct sha256_state *md)  in SHA256_Final()  argument
225   if(md->curlen >= sizeof(md->buf))  in SHA256_Final()
228   md->length += md->curlen * 8;  in SHA256_Final()
230   md->buf[md->curlen++] = (unsigned char)0x80;  in SHA256_Final()
235   if(md->curlen > 56) {  in SHA256_Final()
236     while(md->curlen < 64) {  in SHA256_Final()
237       md->buf[md->curlen++] = (unsigned char)0;  in SHA256_Final()
239     sha256_compress(md, md->buf);  in SHA256_Final()
240     md->curlen = 0;  in SHA256_Final()
243   while(md->curlen < 56) {  in SHA256_Final()
244     md->buf[md->curlen++] = (unsigned char)0;  in SHA256_Final()
247   WPA_PUT_BE64(md->buf + 56, md->length);  in SHA256_Final()
248   sha256_compress(md, md->buf);  in SHA256_Final()
251     WPA_PUT_BE32(out + (4 * i), md->state[i]);  in SHA256_Final()