| #include <ctype.h> |
| #include <sys/socket.h> |
| #include <netinet/in.h> |
| #include <arpa/inet.h> |
| #include <stdlib.h> |
| |
| int __inet_aton(const char *s0, struct in_addr *dest) |
| { |
| const char *s = s0; |
| unsigned char *d = (void *)dest; |
| unsigned long a[4] = { 0 }; |
| char *z; |
| int i; |
| |
| for (i=0; i<4; i++) { |
| a[i] = strtoul(s, &z, 0); |
| if (z==s || (*z && *z != '.') || !isdigit(*s)) |
| return 0; |
| if (!*z) break; |
| s=z+1; |
| } |
| if (i==4) return 0; |
| switch (i) { |
| case 0: |
| a[1] = a[0] & 0xffffff; |
| a[0] >>= 24; |
| case 1: |
| a[2] = a[1] & 0xffff; |
| a[1] >>= 16; |
| case 2: |
| a[3] = a[2] & 0xff; |
| a[2] >>= 8; |
| } |
| for (i=0; i<4; i++) { |
| if (a[i] > 255) return 0; |
| d[i] = a[i]; |
| } |
| return 1; |
| } |
| |
| weak_alias(__inet_aton, inet_aton); |