X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/513f782ae18791f0c925b9235da749b38159b607..e056e93cd5ec9fec1d8aca194c5cb706f8536a90:/print-tcp.c diff --git a/print-tcp.c b/print-tcp.c index f205219b..e963b40a 100644 --- a/print-tcp.c +++ b/print-tcp.c @@ -31,7 +31,7 @@ __RCSID("$NetBSD: print-tcp.c,v 1.8 2007/07/24 11:53:48 drochner Exp $"); #endif #ifdef HAVE_CONFIG_H -#include "config.h" +#include #endif #include "netdissect-stdinc.h" @@ -173,6 +173,7 @@ tcp_print(netdissect_options *ndo, int rev; const struct ip6_hdr *ip6; + ndo->ndo_protocol = "tcp"; tp = (const struct tcphdr *)bp; ip = (const struct ip *)bp2; if (IP_V(ip) == 6) @@ -181,9 +182,16 @@ tcp_print(netdissect_options *ndo, ip6 = NULL; ch = '\0'; if (!ND_TTEST_2(tp->th_dport)) { - ND_PRINT("%s > %s: [|tcp]", - ipaddr_string(ndo, &ip->ip_src), - ipaddr_string(ndo, &ip->ip_dst)); + if (ip6) { + ND_PRINT("%s > %s:", + ip6addr_string(ndo, ip6->ip6_src), + ip6addr_string(ndo, ip6->ip6_dst)); + } else { + ND_PRINT("%s > %s:", + ipaddr_string(ndo, ip->ip_src), + ipaddr_string(ndo, ip->ip_dst)); + } + nd_print_trunc(ndo); return; } @@ -193,9 +201,9 @@ tcp_print(netdissect_options *ndo, if (ip6) { if (EXTRACT_U_1(ip6->ip6_nxt) == IPPROTO_TCP) { ND_PRINT("%s.%s > %s.%s: ", - ip6addr_string(ndo, &ip6->ip6_src), + ip6addr_string(ndo, ip6->ip6_src), tcpport_string(ndo, sport), - ip6addr_string(ndo, &ip6->ip6_dst), + ip6addr_string(ndo, ip6->ip6_dst), tcpport_string(ndo, dport)); } else { ND_PRINT("%s > %s: ", @@ -204,9 +212,9 @@ tcp_print(netdissect_options *ndo, } else { if (EXTRACT_U_1(ip->ip_p) == IPPROTO_TCP) { ND_PRINT("%s.%s > %s.%s: ", - ipaddr_string(ndo, &ip->ip_src), + ipaddr_string(ndo, ip->ip_src), tcpport_string(ndo, sport), - ipaddr_string(ndo, &ip->ip_dst), + ipaddr_string(ndo, ip->ip_dst), tcpport_string(ndo, dport)); } else { ND_PRINT("%s > %s: ", @@ -256,21 +264,21 @@ tcp_print(netdissect_options *ndo, struct tha6 tha; tcp_seq_hash = tcp_seq_hash6; - src = (const void *)&ip6->ip6_src; - dst = (const void *)&ip6->ip6_dst; + src = (const void *)ip6->ip6_src; + dst = (const void *)ip6->ip6_dst; if (sport > dport) rev = 1; else if (sport == dport) { - if (UNALIGNED_MEMCMP(src, dst, sizeof ip6->ip6_dst) > 0) + if (UNALIGNED_MEMCMP(src, dst, sizeof(ip6->ip6_dst)) > 0) rev = 1; } if (rev) { - UNALIGNED_MEMCPY(&tha.src, dst, sizeof ip6->ip6_dst); - UNALIGNED_MEMCPY(&tha.dst, src, sizeof ip6->ip6_src); + UNALIGNED_MEMCPY(&tha.src, dst, sizeof(ip6->ip6_dst)); + UNALIGNED_MEMCPY(&tha.dst, src, sizeof(ip6->ip6_src)); tha.port = dport << 16 | sport; } else { - UNALIGNED_MEMCPY(&tha.dst, dst, sizeof ip6->ip6_dst); - UNALIGNED_MEMCPY(&tha.src, src, sizeof ip6->ip6_src); + UNALIGNED_MEMCPY(&tha.dst, dst, sizeof(ip6->ip6_dst)); + UNALIGNED_MEMCPY(&tha.src, src, sizeof(ip6->ip6_src)); tha.port = sport << 16 | dport; } @@ -282,12 +290,15 @@ tcp_print(netdissect_options *ndo, if (!th->nxt || (flags & TH_SYN)) { /* didn't find it or new conversation */ + /* calloc() return used by the 'tcp_seq_hash6' + hash table: do not free() */ if (th->nxt == NULL) { th->nxt = (struct tcp_seq_hash6 *) calloc(1, sizeof(*th)); if (th->nxt == NULL) (*ndo->ndo_error)(ndo, - "tcp_print: calloc"); + S_ERR_ND_MEM_ALLOC, + "tcp_print: calloc"); } th->addr = tha; if (rev) @@ -312,16 +323,20 @@ tcp_print(netdissect_options *ndo, if (sport > dport) rev = 1; else if (sport == dport) { - if (UNALIGNED_MEMCMP(&ip->ip_src, &ip->ip_dst, sizeof ip->ip_dst) > 0) + if (UNALIGNED_MEMCMP(ip->ip_src, ip->ip_dst, sizeof(ip->ip_dst)) > 0) rev = 1; } if (rev) { - UNALIGNED_MEMCPY(&tha.src, &ip->ip_dst, sizeof ip->ip_dst); - UNALIGNED_MEMCPY(&tha.dst, &ip->ip_src, sizeof ip->ip_src); + UNALIGNED_MEMCPY(&tha.src, ip->ip_dst, + sizeof(ip->ip_dst)); + UNALIGNED_MEMCPY(&tha.dst, ip->ip_src, + sizeof(ip->ip_src)); tha.port = dport << 16 | sport; } else { - UNALIGNED_MEMCPY(&tha.dst, &ip->ip_dst, sizeof ip->ip_dst); - UNALIGNED_MEMCPY(&tha.src, &ip->ip_src, sizeof ip->ip_src); + UNALIGNED_MEMCPY(&tha.dst, ip->ip_dst, + sizeof(ip->ip_dst)); + UNALIGNED_MEMCPY(&tha.src, ip->ip_src, + sizeof(ip->ip_src)); tha.port = sport << 16 | dport; } @@ -333,12 +348,15 @@ tcp_print(netdissect_options *ndo, if (!th->nxt || (flags & TH_SYN)) { /* didn't find it or new conversation */ + /* calloc() return used by the 'tcp_seq_hash4' + hash table: do not free() */ if (th->nxt == NULL) { th->nxt = (struct tcp_seq_hash *) calloc(1, sizeof(*th)); if (th->nxt == NULL) (*ndo->ndo_error)(ndo, - "tcp_print: calloc"); + S_ERR_ND_MEM_ALLOC, + "tcp_print: calloc"); } th->addr = tha; if (rev) @@ -772,7 +790,7 @@ tcp_print(netdissect_options *ndo, ND_PRINT(">"); return; trunc: - ND_PRINT("[|tcp]"); + nd_print_trunc(ndo); if (ch != '\0') ND_PRINT(">"); } @@ -807,7 +825,7 @@ print_tcp_rst_data(netdissect_options *ndo, while (length-- && sp < ndo->ndo_snapend) { c = EXTRACT_U_1(sp); sp++; - safeputchar(ndo, c); + fn_print_char(ndo, c); } ND_PRINT("]"); } @@ -919,10 +937,3 @@ tcp_verify_signature(netdissect_options *ndo, } USES_APPLE_RST #endif /* HAVE_LIBCRYPTO */ - -/* - * Local Variables: - * c-style: whitesmith - * c-basic-offset: 8 - * End: - */