WinPcap + Dev-cpp == misserfolg
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hi,
Ein Misserfolg nach dem Anderen...
Ich pack es nicht winpcap in devcpp zu compilieren, ich bin völlig am verzweifeln... versuche das jetzt schon länger.
ich habe die *.a eingebunden, header files alle in std ordner getan, dann include <pcap.h> und compile + run..
fehlermeldung krieg ich immer:
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Compiler: Default compiler
Building Makefile: "C:\Dev-Cpp\socktest\Makefile.win"
Executing make...
make.exe -f "C:\Dev-Cpp\socktest\Makefile.win" all
gcc.exe -c main.c -o main.o -I"C:/Dev-Cpp/include"In file included from C:/Dev-Cpp/include/pcap-stdinc.h:53,
from C:/Dev-Cpp/include/pcap.h:41,
from main.c:1:
C:/Dev-Cpp/include/bittypes.h:36: error: redefinition of typedef 'int8_t'
C:/Dev-Cpp/include/stdint.h:27: error: previous declaration of 'int8_t' was here
C:/Dev-Cpp/include/bittypes.h:52: error: redefinition of typedef 'int16_t'
C:/Dev-Cpp/include/stdint.h:29: error: previous declaration of 'int16_t' was here
C:/Dev-Cpp/include/bittypes.h:71: error: redefinition of typedef 'int32_t'
C:/Dev-Cpp/include/stdint.h:31: error: previous declaration of 'int32_t' was heremake.exe: *** [main.o] Error 1
Execution terminated
---------Die Source ist:
#include <pcap.h> #include <stdio.h> #include <stdlib.h> //oder hier pcap.h ... habe beides getestet... int main(int argc, char *argv[]) { system("PAUSE"); return 0; }
Danke.. nur ihr könnt mir helfen, google half nicht. DANKEEE!!!!
greezzZz vom winpcap-devcpp-er
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da ist ein konflikt, wer von den beiden headern die typen deklarieren soll. die machen das beide, obwohls nur einer machen sollte.
es gibt viele loesungen, zwei seien hier genannt:
- deinstalliere dev-cpp und nimm dir code::blocks
- kille die deklarationen aus dem header, der spaeter inkludiert wird
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Also ich weiß ja nicht, ob das nen Unterschied macht. Als Compiler nutzen doch beide den MinGW, oder?
Aaber zumindest soll code::blocks nicht so buggy sein
Ich persönlich nutze den DevCpp eigentlich nur noch zum Anschauen von code und zum Installieren von Bibliotheken, etc. Den Rest macht Eclipse(wobei mich code::blocks irgendwie stark an Eclipse erinnert ;)).
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Hallo,
Vielen Dank, das geht jetzt, nun musste ich aber noch #define HAVE_REMOTE am Anfang setzen.
BITTE HELFT MIR!!! Danke!!
Ich habe (beispielsource halt):
#define HAVE_REMOTE #include <pcap.h> #include <stdio.h> #include <stdlib.h> /* 4 bytes IP address */ typedef struct ip_address{ u_char byte1; u_char byte2; u_char byte3; u_char byte4; }ip_address; /* IPv4 header */ typedef struct ip_header{ u_char ver_ihl; // Version (4 bits) + Internet header length (4 bits) u_char tos; // Type of service u_short tlen; // Total length u_short identification; // Identification u_short flags_fo; // Flags (3 bits) + Fragment offset (13 bits) u_char ttl; // Time to live u_char proto; // Protocol u_short crc; // Header checksum ip_address saddr; // Source address ip_address daddr; // Destination address u_int op_pad; // Option + Padding }ip_header; /* UDP header*/ typedef struct udp_header{ u_short sport; // Source port u_short dport; // Destination port u_short len; // Datagram length u_short crc; // Checksum }udp_header; /* prototype of the packet handler */ void packet_handler(u_char *param, const struct pcap_pkthdr *header, const u_char *pkt_data); main() { pcap_if_t *alldevs; pcap_if_t *d; int inum; int i=0; pcap_t *adhandle; char errbuf[PCAP_ERRBUF_SIZE]; u_int netmask; char packet_filter[] = "ip and udp"; struct bpf_program fcode; /* Retrieve the device list */ if (pcap_findalldevs_ex(PCAP_SRC_IF_STRING, NULL, &alldevs, errbuf) == -1) { fprintf(stderr,"Error in pcap_findalldevs: %s\n", errbuf); exit(1); } /* Print the list */ for(d=alldevs; d; d=d->next) { printf("%d. %s", ++i, d->name); if (d->description) printf(" (%s)\n", d->description); else printf(" (No description available)\n"); } if(i==0) { printf("\nNo interfaces found! Make sure WinPcap is installed.\n"); return -1; } printf("Enter the interface number (1-%d):",i); scanf("%d", &inum); if(inum < 1 || inum > i) { printf("\nInterface number out of range.\n"); /* Free the device list */ pcap_freealldevs(alldevs); return -1; } /* Jump to the selected adapter */ for(d=alldevs, i=0; i< inum-1 ;d=d->next, i++); /* Open the adapter */ if ( (adhandle= pcap_open(d->name, // name of the device 65536, // portion of the packet to capture. // 65536 grants that the whole packet will be captured on all the MACs. PCAP_OPENFLAG_PROMISCUOUS, // promiscuous mode 1000, // read timeout NULL, // remote authentication errbuf // error buffer ) ) == NULL) { fprintf(stderr,"\nUnable to open the adapter. %s is not supported by WinPcap\n"); /* Free the device list */ pcap_freealldevs(alldevs); return -1; } /* Check the link layer. We support only Ethernet for simplicity. */ if(pcap_datalink(adhandle) != DLT_EN10MB) { fprintf(stderr,"\nThis program works only on Ethernet networks.\n"); /* Free the device list */ pcap_freealldevs(alldevs); return -1; } if(d->addresses != NULL) /* Retrieve the mask of the first address of the interface */ netmask=((struct sockaddr_in *)(d->addresses->netmask))->sin_addr.S_un.S_addr; else /* If the interface is without addresses we suppose to be in a C class network */ netmask=0xffffff; //compile the filter if (pcap_compile(adhandle, &fcode, packet_filter, 1, netmask) <0 ) { fprintf(stderr,"\nUnable to compile the packet filter. Check the syntax.\n"); /* Free the device list */ pcap_freealldevs(alldevs); return -1; } //set the filter if (pcap_setfilter(adhandle, &fcode)<0) { fprintf(stderr,"\nError setting the filter.\n"); /* Free the device list */ pcap_freealldevs(alldevs); return -1; } printf("\nlistening on %s...\n", d->description); /* At this point, we don't need any more the device list. Free it */ pcap_freealldevs(alldevs); /* start the capture */ pcap_loop(adhandle, 0, packet_handler, NULL); return 0; } /* Callback function invoked by libpcap for every incoming packet */ void packet_handler(u_char *param, const struct pcap_pkthdr *header, const u_char *pkt_data) { struct tm *ltime; char timestr[16]; ip_header *ih; udp_header *uh; u_int ip_len; u_short sport,dport; /* convert the timestamp to readable format */ ltime=localtime(&header->ts.tv_sec); strftime( timestr, sizeof timestr, "%H:%M:%S", ltime); /* print timestamp and length of the packet */ printf("%s.%.6d len:%d ", timestr, header->ts.tv_usec, header->len); /* retireve the position of the ip header */ ih = (ip_header *) (pkt_data + 14); //length of ethernet header /* retireve the position of the udp header */ ip_len = (ih->ver_ihl & 0xf) * 4; uh = (udp_header *) ((u_char*)ih + ip_len); /* convert from network byte order to host byte order */ sport = ntohs( uh->sport ); dport = ntohs( uh->dport ); /* print ip addresses and udp ports */ printf("%d.%d.%d.%d.%d -> %d.%d.%d.%d.%d\n", ih->saddr.byte1, ih->saddr.byte2, ih->saddr.byte3, ih->saddr.byte4, sport, ih->daddr.byte1, ih->daddr.byte2, ih->daddr.byte3, ih->daddr.byte4, dport); }
und krieg:
Project : Console application Compiler : GNU GCC Compiler (called directly) Directory : C:\Dokumente und Einstellungen\ichpfeiffe\Eigene Dateien\code-blocks\ -------------------------------------------------------------------------------- Switching to target: default Compiling: main.c Linking console executable: C:\Dokumente und Einstellungen\ichpfeiffe\Eigene Dateien\code-blocks\libpcaptest.exe .objs\main.o:main.c:(.text+0x433): undefined reference to `ntohs@4' .objs\main.o:main.c:(.text+0x449): undefined reference to `ntohs@4' collect2: ld returned 1 exit status Process terminated with status 1 (0 minutes, 0 seconds)
obwohl ich doch alle libraries eingebunden habe.. und die include files in den selben include-ordner kopiert habe. Ist der vielleicht bescheuert...
Danke für die Hilfe...
greEzZZz
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Ich denke, Dir fehlt noch die ws2_32.lib...
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ja danke... geht jetzt echt.. aber kann ich die via pragma auch einfügen? ich habe einfach libwsock... lib eingebunden. was is cooler?