Lines Matching refs:acc
80 * internet checksum. "acc" is a 32-bit
86 #define ADJUST_CHECKSUM(acc, cksum) { \
87 acc += cksum; \
88 if (acc < 0) { \
89 acc = -acc; \
90 acc = (acc >> 16) + (acc & 0xffff); \
91 acc += acc >> 16; \
92 cksum = (u_short) ~acc; \
94 acc = (acc >> 16) + (acc & 0xffff); \
95 acc += acc >> 16; \
96 cksum = (u_short) acc; \