Add another test program, based on the test program for
pcap_findalldevs() from Scott Gifford.
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FILES
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@ -40,6 +40,7 @@ fad-glifc.c
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fad-null.c
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fad-win32.c
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filtertest.c
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findalldevstest.c
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gencode.c
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gencode.h
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grammar.y
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@ -1,4 +1,4 @@
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@(#) $Header: /tcpdump/master/libpcap/INSTALL.txt,v 1.14 2005-08-08 17:44:25 guy Exp $ (LBL)
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@(#) $Header: /tcpdump/master/libpcap/INSTALL.txt,v 1.15 2005-08-10 06:19:06 guy Exp $ (LBL)
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To build libpcap, run "./configure" (a shell script). The configure
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script will determine your system attributes and generate an
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@ -334,6 +334,7 @@ fad-glifc.c - pcap_findalldevs() for systems with SIOCGLIFCONF
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fad-null.c - pcap_findalldevs() for systems without capture support
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fad-win32.c - pcap_findalldevs() for WinPcap
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filtertest.c - test program for BPF compiler
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findalldevstest.c - test program for pcap_findalldevs()
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gencode.c - BPF code generation routines
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gencode.h - BPF code generation definitions
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grammar.y - filter string grammar
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@ -17,7 +17,7 @@
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# WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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#
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# @(#) $Header: /tcpdump/master/libpcap/Makefile.in,v 1.100 2005-08-08 17:44:26 guy Exp $ (LBL)
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# @(#) $Header: /tcpdump/master/libpcap/Makefile.in,v 1.101 2005-08-10 06:19:06 guy Exp $ (LBL)
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#
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# Various configurable paths (remember to edit Makefile.in, not Makefile)
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@ -169,9 +169,15 @@ bpf_filter.c: $(srcdir)/bpf/net/bpf_filter.c
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bpf_filter.o: bpf_filter.c
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$(CC) $(CFLAGS) -c bpf_filter.c
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#
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# Test programs - not built by default, and not installed.
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#
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filtertest: filtertest.c libpcap.a
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$(CC) $(CFLAGS) -I. -L. -o filtertest filtertest.c libpcap.a
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findalldevstest: findalldevstest.c libpcap.a
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$(CC) $(CFLAGS) -I. -L. -o findalldevstest findalldevstest.c libpcap.a
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install: libpcap.a
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[ -d $(DESTDIR)$(libdir) ] || \
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(mkdir -p $(DESTDIR)$(libdir); chmod 755 $(DESTDIR)$(libdir))
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@ -0,0 +1,131 @@
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <pcap.h>
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static void ifprint(pcap_if_t *d);
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static char *iptos(bpf_u_int32 in);
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int main(int argc, char **argv)
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{
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pcap_if_t *alldevs;
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pcap_if_t *d;
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char *s;
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bpf_u_int32 net, mask;
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char errbuf[PCAP_ERRBUF_SIZE+1];
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if (pcap_findalldevs(&alldevs, errbuf) == -1)
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{
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fprintf(stderr,"Error in pcap_findalldevs: %s\n",errbuf);
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exit(1);
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}
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for(d=alldevs;d;d=d->next)
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{
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ifprint(d);
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}
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if ( (s = pcap_lookupdev(errbuf)) == NULL)
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{
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fprintf(stderr,"Error in pcap_lookupdev: %s\n",errbuf);
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}
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else
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{
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printf("Preferred device name: %s\n",s);
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}
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if (pcap_lookupnet(s, &net, &mask, errbuf) < 0)
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{
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fprintf(stderr,"Error in pcap_lookupnet: %s\n",errbuf);
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}
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else
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{
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printf("Preferred device is on network: %s/%s\n",iptos(net), iptos(mask));
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}
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exit(0);
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}
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static void ifprint(pcap_if_t *d)
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{
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pcap_addr_t *a;
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#ifdef INET6
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char ntop_buf[INET6_ADDRSTRLEN];
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#endif
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printf("%s\n",d->name);
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if (d->description)
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printf("\tDescription: %s\n",d->description);
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printf("\tLoopback: %s\n",(d->flags & PCAP_IF_LOOPBACK)?"yes":"no");
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for(a=d->addresses;a;a=a->next) {
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switch(a->addr->sa_family)
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{
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case AF_INET:
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printf("\tAddress Family: AF_INET\n");
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if (a->addr)
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printf("\t\tAddress: %s\n",
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inet_ntoa(((struct sockaddr_in *)(a->addr))->sin_addr));
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if (a->netmask)
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printf("\t\tNetmask: %s\n",
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inet_ntoa(((struct sockaddr_in *)(a->netmask))->sin_addr));
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if (a->broadaddr)
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printf("\t\tBroadcast Address: %s\n",
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inet_ntoa(((struct sockaddr_in *)(a->broadaddr))->sin_addr));
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if (a->dstaddr)
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printf("\t\tDestination Address: %s\n",
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inet_ntoa(((struct sockaddr_in *)(a->dstaddr))->sin_addr));
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break;
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#ifdef INET6
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case AF_INET6:
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printf("\tAddress Family: AF_INET6\n");
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if (a->addr)
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printf("\t\tAddress: %s\n",
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inet_ntop(AF_INET6,
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((struct sockaddr_in6 *)(a->addr))->sin6_addr.s6_addr,
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ntop_buf, sizeof ntop_buf));
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if (a->netmask)
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printf("\t\tNetmask: %s\n",
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inet_ntop(AF_INET6,
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((struct sockaddr_in6 *)(a->netmask))->sin6_addr.s6_addr,
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ntop_buf, sizeof ntop_buf));
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if (a->broadaddr)
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printf("\t\tBroadcast Address: %s\n",
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inet_ntop(AF_INET6,
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((struct sockaddr_in6 *)(a->broadaddr))->sin6_addr.s6_addr,
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ntop_buf, sizeof ntop_buf));
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if (a->dstaddr)
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printf("\t\tDestination Address: %s\n",
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inet_ntop(AF_INET6,
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((struct sockaddr_in6 *)(a->dstaddr))->sin6_addr.s6_addr,
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ntop_buf, sizeof ntop_buf));
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break;
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#endif
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default:
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printf("\tAddress Family: Unknown (%d)\n", a->addr->sa_family);
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break;
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}
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}
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printf("\n");
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}
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/* From tcptraceroute */
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#define IPTOSBUFFERS 12
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static char *iptos(bpf_u_int32 in)
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{
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static char output[IPTOSBUFFERS][3*4+3+1];
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static short which;
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u_char *p;
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p = (u_char *)∈
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which = (which + 1 == IPTOSBUFFERS ? 0 : which + 1);
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sprintf(output[which], "%d.%d.%d.%d", p[0], p[1], p[2], p[3]);
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return output[which];
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}
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