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Stop using platform inet_aton/inet_addr; they can behave strangely on certain misformed addresses.

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svn:r1111
This commit is contained in:
Nick Mathewson 2009-02-10 19:43:11 +00:00
parent 01456265c3
commit da49d6a3b0
1 changed files with 11 additions and 15 deletions
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26
evutil.c
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@ -479,21 +479,17 @@ evutil_inet_pton(int af, const char *src, void *dst)
return inet_pton(af, src, dst);
#else
if (af == AF_INET) {
#ifdef _EVENT_HAVE_INET_ATON
return inet_aton(src, dst);
#else
ev_uint32_t r;
struct in_addr *out = dst;
if (strcmp(src, "255.255.255.255") == 0) {
out->s_addr = 0xffffffffu;
} else {
r = inet_addr(src);
if (r == INADDR_NONE)
return 0;
out->s_addr = r;
}
return 1;
#endif
int a,b,c,d;
char more;
struct in_addr *addr = dst;
if (sscanf(src, "%d.%d.%d.%d%c", &a,&b,&c,&d,&more) != 4)
return 0;
if (a < 0 || a > 255) return 0;
if (b < 0 || b > 255) return 0;
if (c < 0 || c > 255) return 0;
if (d < 0 || d > 255) return 0;
addr->s_addr = htonl((a<<24) | (b<<16) | (c<<8) | d);
return 1;
#ifdef AF_INET6
} else if (af == AF_INET6) {
struct in6_addr *out = dst;