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@ -236,11 +236,9 @@ char *prog;
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int ident; /* our pid */
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int socket4 = 0;
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#ifndef IPV6
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int *allsocket[2] = { &socket4, NULL };
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int hints_ai_family = AF_INET;
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#else
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int socket6 = 0;
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int *allsocket[3] = { &socket4, &socket6, NULL };
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int hints_ai_family = AF_UNSPEC;
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#endif
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@ -381,26 +379,40 @@ int main( int argc, char **argv )
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switch( c )
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{
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case '4':
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if(hints_ai_family != AF_UNSPEC) {
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fprintf(stderr, "%s: can't specify both -4 and -6\n", prog);
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exit(1);
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}
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hints_ai_family = AF_INET;
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// FIXME: check that -4 and -6 not used together
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break;
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case '6':
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#ifdef IPV6
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if(hints_ai_family != AF_UNSPEC) {
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fprintf(stderr, "%s: can't specify both -4 and -6\n", prog);
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exit(1);
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}
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hints_ai_family = AF_INET6;
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// FIXME: check that -4 and -6 not used together
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#else
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fprintf(stderr, "%s: IPv6 not supported by this binary\n", prog);
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exit(1);
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#endif
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break;
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case 'M':
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#ifdef IP_MTU_DISCOVER
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{
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if(socket4) {
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int val = IP_PMTUDISC_DO;
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int **sp;
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for(sp=&allsocket[0]; *sp; sp++) {
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if (setsockopt(**sp, IPPROTO_IP, IP_MTU_DISCOVER, &val, sizeof(val))) {
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perror("setsockopt IP_MTU_DISCOVER");
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}
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if (setsockopt(socket4, IPPROTO_IP, IP_MTU_DISCOVER, &val, sizeof(val))) {
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perror("setsockopt IP_MTU_DISCOVER");
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}
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}
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if(socket6) {
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int val = IPV6_PMTUDISC_DO;
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if (setsockopt(socket6, IPPROTO_IPV6, IPV6_MTU_DISCOVER, &val, sizeof(val))) {
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perror("setsockopt IPV6_MTU_DISCOVER");
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}
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}
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#else
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fprintf(stderr, "-M option not supported on this platform\n");
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fprintf(stderr, "%s, -M option not supported on this platform\n", prog);
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exit(1);
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#endif
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break;
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@ -564,14 +576,18 @@ int main( int argc, char **argv )
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case 'I':
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#ifdef SO_BINDTODEVICE
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{
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int **sp;
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for(sp=&allsocket[0]; *sp; sp++) {
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if (setsockopt(**sp, SOL_SOCKET, SO_BINDTODEVICE, optarg, strlen(optarg))) {
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perror("binding to specific interface (SO_BINTODEVICE)");
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}
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if(socket4) {
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if (setsockopt(socket4, SOL_SOCKET, SO_BINDTODEVICE, optarg, strlen(optarg))) {
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perror("binding to specific interface (SO_BINTODEVICE)");
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}
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}
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#ifdef IPV6
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if(socket6) {
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if (setsockopt(socket6, SOL_SOCKET, SO_BINDTODEVICE, optarg, strlen(optarg))) {
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perror("binding to specific interface (SO_BINTODEVICE), IPV6");
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}
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}
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#endif
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#else
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printf( "%s: cant bind to a particular net interface since SO_BINDTODEVICE is not supported on your os.\n", argv[0] );
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exit(3);;
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@ -584,12 +600,18 @@ int main( int argc, char **argv )
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case 'O':
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if (sscanf(optarg,"%i",&tos)){
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int **sp;
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for(sp=&allsocket[0]; *sp; sp++) {
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if ( setsockopt(**sp, IPPROTO_IP, IP_TOS, &tos, sizeof(tos))) {
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if(socket4) {
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if ( setsockopt(socket4, IPPROTO_IP, IP_TOS, &tos, sizeof(tos))) {
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perror("setting type of service octet IP_TOS");
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}
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}
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#ifdef IPV6
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if(socket6) {
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if ( setsockopt(socket6, IPPROTO_IPV6, IPV6_TCLASS, &tos, sizeof(tos))) {
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perror("setting type of service octet IPV6_TCLASS");
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}
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}
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#endif
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}
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else {
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usage(1);
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@ -608,23 +630,28 @@ int main( int argc, char **argv )
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}/* SWITCH */
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}/* WHILE */
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/* if we are called 'fping6', assume '-6' */
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if(strstr(argv[0], "fping6")) {
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hints_ai_family = AF_INET6;
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}
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/* validate various option settings */
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if (ttl > 255) {
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fprintf(stderr, "ttl %u out of range\n", ttl);
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fprintf(stderr, "%s: ttl %u out of range\n", prog, ttl);
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exit(1);
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}
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if( unreachable_flag && alive_flag )
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{
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fprintf( stderr, "%s: specify only one of a, u\n", argv[0] );
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fprintf( stderr, "%s: specify only one of a, u\n", prog);
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exit(1);
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}/* IF */
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if( count_flag && loop_flag )
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{
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fprintf( stderr, "%s: specify only one of c, l\n", argv[0] );
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fprintf( stderr, "%s: specify only one of c, l\n", prog);
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exit(1);
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}/* IF */
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@ -740,23 +767,35 @@ int main( int argc, char **argv )
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/* set the TTL, if the -H option was set (otherwise ttl will be = 0) */
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if(ttl > 0) {
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int **sp;
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for(sp=&allsocket[0]; *sp; sp++) {
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if (setsockopt(**sp, IPPROTO_IP, IP_TTL, &ttl, sizeof(ttl))) {
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if(socket4) {
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if (setsockopt(socket4, IPPROTO_IP, IP_TTL, &ttl, sizeof(ttl))) {
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perror("setting time to live");
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}
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}
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#ifdef IPV6
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if(socket6) {
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if (setsockopt(socket6, IPPROTO_IPV6, IPV6_UNICAST_HOPS, &ttl, sizeof(ttl))) {
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perror("setting time to live");
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}
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}
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#endif
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}
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#if HAVE_SO_TIMESTAMP
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{
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int opt = 1;
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int **sp;
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for(sp=&allsocket[0]; *sp; sp++) {
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if (setsockopt(**sp, SOL_SOCKET, SO_TIMESTAMP, &opt, sizeof(opt))) {
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if(socket4) {
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if (setsockopt(socket4, SOL_SOCKET, SO_TIMESTAMP, &opt, sizeof(opt))) {
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perror("setting SO_TIMESTAMP option");
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}
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}
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#ifdef IPV6
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if(socket6) {
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if (setsockopt(socket6, SOL_SOCKET, SO_TIMESTAMP, &opt, sizeof(opt))) {
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perror("setting SO_TIMESTAMP option (IPv6)");
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}
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}
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#endif
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}
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#endif
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@ -937,18 +976,18 @@ void add_cidr(char *addr)
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addr_hints.ai_flags = AI_NUMERICHOST;
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ret = getaddrinfo(addr, NULL, &addr_hints, &addr_res);
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if(ret) {
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fprintf(stderr, "Error: can't parse address %s: %s\n", addr, gai_strerror(ret));
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fprintf(stderr, "%s, can't parse address %s: %s\n", prog, addr, gai_strerror(ret));
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exit(1);
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}
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if(addr_res->ai_family != AF_INET) {
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fprintf(stderr, "Error: -g works only with IPv4 addresses\n");
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fprintf(stderr, "%s: -g works only with IPv4 addresses\n", prog);
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exit(1);
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}
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net_addr = ntohl(((struct sockaddr_in *) addr_res->ai_addr)->sin_addr.s_addr);
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/* check mask */
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if(mask < 1 || mask > 32) {
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fprintf(stderr, "Error: netmask must be between 1 and 32 (is: %s)\n", mask_str);
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fprintf(stderr, "%s: netmask must be between 1 and 32 (is: %s)\n", prog, mask_str);
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exit(1);
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}
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@ -992,12 +1031,12 @@ void add_range(char *start, char *end)
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addr_hints.ai_flags = AI_NUMERICHOST;
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ret = getaddrinfo(start, NULL, &addr_hints, &addr_res);
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if(ret) {
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fprintf(stderr, "Error: can't parse address %s: %s\n", start, gai_strerror(ret));
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fprintf(stderr, "%s: can't parse address %s: %s\n", prog, start, gai_strerror(ret));
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exit(1);
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}
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if(addr_res->ai_family != AF_INET) {
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freeaddrinfo(addr_res);
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fprintf(stderr, "Error: -g works only with IPv4 addresses\n");
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fprintf(stderr, "%s: -g works only with IPv4 addresses\n", prog);
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exit(1);
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}
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start_long = ntohl(((struct sockaddr_in *) addr_res->ai_addr)->sin_addr.s_addr);
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@ -1008,19 +1047,19 @@ void add_range(char *start, char *end)
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addr_hints.ai_flags = AI_NUMERICHOST;
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ret = getaddrinfo(end, NULL, &addr_hints, &addr_res);
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if(ret) {
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fprintf(stderr, "Error: can't parse address %s: %s\n", end, gai_strerror(ret));
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fprintf(stderr, "%s: can't parse address %s: %s\n", prog, end, gai_strerror(ret));
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exit(1);
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}
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if(addr_res->ai_family != AF_INET) {
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freeaddrinfo(addr_res);
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fprintf(stderr, "Error: -g works only with IPv4 addresses\n");
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fprintf(stderr, "%s: -g works only with IPv4 addresses\n", prog);
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exit(1);
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}
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end_long = ntohl(((struct sockaddr_in *) addr_res->ai_addr)->sin_addr.s_addr);
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freeaddrinfo(addr_res);
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if(end_long > start_long + MAX_GENERATE) {
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fprintf(stderr, "Error: -g parameter generates too many addresses\n");
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fprintf(stderr, "%s: -g parameter generates too many addresses\n", prog);
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exit(1);
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}
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@ -2688,6 +2727,8 @@ void usage(int is_error)
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FILE *out = is_error ? stderr : stdout;
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fprintf(out, "\n" );
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fprintf(out, "Usage: %s [options] [targets...]\n", prog );
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fprintf(out, " -4 only use IPv4 addresses\n" );
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fprintf(out, " -6 only use IPv6 addresses\n" );
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fprintf(out, " -a show targets that are alive\n" );
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fprintf(out, " -A show targets by address\n" );
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fprintf(out, " -b n amount of ping data to send, in bytes (default %d)\n", DEFAULT_PING_DATA_SIZE);
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David Schweikert
8 years ago