0d0260fd1
Denys Vlasenko
2011-09-08
Subject
inet_cksum: big-endian fix
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libbb/inet_cksum.c+6 -2
| @@ -21,8 +21,12 @@ uint16_t FAST_FUNC inet_cksum(uint16_t *addr, int nleft) | |
| } | |
| /* Mop up an odd byte, if necessary */ | |
| - | if (nleft) |
| - | sum += *(uint8_t*)addr; |
| + | if (nleft == 1) { |
| + | if (BB_LITTLE_ENDIAN) |
| + | sum += *(uint8_t*)addr; |
| + | else |
| + | sum += *(uint8_t*)addr << 8; |
| + | } |
| /* Add back carry outs from top 16 bits to low 16 bits */ | |
| sum = (sum >> 16) + (sum & 0xffff); /* add hi 16 to low 16 */ | |