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authorStefan Metzmacher <metze@samba.org>2008-06-10 08:33:24 +0200
committerStefan Metzmacher <metze@samba.org>2008-06-10 08:43:02 +0200
commit47b106c0ae8b91c9cccfc21bf8e4e416b1abfd5d (patch)
tree659061de1eec1d4f20638cd5cf5bf90527825777 /source4
parent7721ea8f9c75d304111935048167dd27525cc91a (diff)
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socket_wrapper: truncate packets to a 1500 byte payload
Truncate sendto(), recvfrom(), send() and recv() to 1500 bytes so that're getting a correctly formatted pcap file and the result look more like real network traffic. metze (This used to be commit 5b01206f1bb2e62c08bda34b45904ec4f83ac5de)
Diffstat (limited to 'source4')
-rw-r--r--source4/lib/socket_wrapper/socket_wrapper.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/source4/lib/socket_wrapper/socket_wrapper.c b/source4/lib/socket_wrapper/socket_wrapper.c
index 86d9f7a312..981df523cd 100644
--- a/source4/lib/socket_wrapper/socket_wrapper.c
+++ b/source4/lib/socket_wrapper/socket_wrapper.c
@@ -1643,6 +1643,8 @@ _PUBLIC_ ssize_t swrap_recvfrom(int s, void *buf, size_t len, int flags, struct
return real_recvfrom(s, buf, len, flags, from, fromlen);
}
+ len = MIN(len, 1500);
+
/* irix 6.4 forgets to null terminate the sun_path string :-( */
memset(&un_addr, 0, sizeof(un_addr));
ret = real_recvfrom(s, buf, len, flags, (struct sockaddr *)&un_addr, &un_addrlen);
@@ -1671,6 +1673,8 @@ _PUBLIC_ ssize_t swrap_sendto(int s, const void *buf, size_t len, int flags, con
return real_sendto(s, buf, len, flags, to, tolen);
}
+ len = MIN(len, 1500);
+
switch (si->type) {
case SOCK_STREAM:
ret = real_send(s, buf, len, flags);
@@ -1764,6 +1768,8 @@ _PUBLIC_ ssize_t swrap_recv(int s, void *buf, size_t len, int flags)
return real_recv(s, buf, len, flags);
}
+ len = MIN(len, 1500);
+
ret = real_recv(s, buf, len, flags);
if (ret == -1 && errno != EAGAIN && errno != ENOBUFS) {
swrap_dump_packet(si, NULL, SWRAP_RECV_RST, NULL, 0);
@@ -1786,6 +1792,8 @@ _PUBLIC_ ssize_t swrap_send(int s, const void *buf, size_t len, int flags)
return real_send(s, buf, len, flags);
}
+ len = MIN(len, 1500);
+
ret = real_send(s, buf, len, flags);
if (ret == -1) {