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Have NetBlock::next return the socklen.

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This matters on OS X; with the wrong size, connect scans give "Invalid
argument".
Reported by Jesper Kückelhahn.
http://seclists.org/nmap-dev/2013/q1/84
This commit is contained in:
david
2013-01-26 05:31:33 +00:00
parent 010969b77f
commit 249c566196
3 changed files with 10 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
TargetGroup.cc
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@@ -278,7 +278,7 @@ NetBlockIPv4Ranges::NetBlockIPv4Ranges() {
}
}
bool NetBlockIPv4Ranges::next(struct sockaddr_storage *ss) {
bool NetBlockIPv4Ranges::next(struct sockaddr_storage *ss, size_t *sslen) {
struct sockaddr_in *sin;
unsigned int i;
@@ -303,6 +303,7 @@ bool NetBlockIPv4Ranges::next(struct sockaddr_storage *ss) {
sin->sin_len = sizeof(*sin);
#endif
sin->sin_addr.s_addr = htonl((this->counter[0] << 24) | (this->counter[1] << 16) | (this->counter[2] << 8) | this->counter[3]);
*sslen = sizeof(*sin);
for (i = 0; i < 4; i++) {
bool carry;
@@ -451,7 +452,7 @@ static bool ipv6_equal(const struct in6_addr *a, const struct in6_addr *b) {
return memcmp(a->s6_addr, b->s6_addr, 16) == 0;
}
bool NetBlockIPv6Netmask::next(struct sockaddr_storage *ss) {
bool NetBlockIPv6Netmask::next(struct sockaddr_storage *ss, size_t *sslen) {
struct sockaddr_in6 *sin6;
if (this->exhausted)
@@ -463,6 +464,7 @@ bool NetBlockIPv6Netmask::next(struct sockaddr_storage *ss) {
#ifdef SIN_LEN
sin6->sin6_len = sizeof(*sin6);
#endif
*sslen = sizeof(*sin6);
if (this->addr.sin6_scope_id != 0)
sin6->sin6_scope_id = this->addr.sin6_scope_id;
@@ -631,7 +633,7 @@ NetBlockHostname::NetBlockHostname(const char *hostname, int af) {
this->bits = -1;
}
bool NetBlockHostname::next(struct sockaddr_storage *ss) {
bool NetBlockHostname::next(struct sockaddr_storage *ss, size_t *sslen) {
assert(false);
return false;
}