The Tcpdump Group git mirrors - libpcap/blob - testprogs/fuzz/fuzz_rserver.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <fcntl.h>
   4 #include <errno.h>
   5 #include <stdarg.h>
   6
   7 #include <pcap/pcap.h>
   8
   9 FILE * outfile = NULL;
  10
  11 void fuzz_openFile(const char * name) {
  12     if (outfile != NULL) {
  13         fclose(outfile);
  14     }
  15     outfile = fopen(name, "w");
  16 }
  17
  18 typedef enum {
  19     LOGPRIO_DEBUG,
  20     LOGPRIO_INFO,
  21     LOGPRIO_WARNING,
  22     LOGPRIO_ERROR
  23 } log_priority;
  24
  25 void rpcapd_log(log_priority priority, const char *message, ...)
  26 {
  27     va_list ap;
  28
  29     va_start(ap, message);
  30     fprintf(outfile, "rpcapd[%d]:", priority);
  31     vfprintf(outfile, message, ap);
  32     putc('\n', outfile);
  33     va_end(ap);
  34 }
  35
  36 void sock_initfuzz(const uint8_t *Data, size_t Size);
  37 int daemon_serviceloop(int sockctrl, int isactive, char *passiveClients, int nullAuthAllowed, int uses_ssl);
  38
  39 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  40     int sock;
  41
  42     //initialization
  43     if (outfile == NULL) {
  44         fuzz_openFile("/dev/null");
  45     }
  46
  47     sock_initfuzz(Data, Size);
  48     sock = socket(AF_INET, SOCK_STREAM, 0);
  49     if (sock == INVALID_SOCKET) {
  50         abort();
  51     }
  52     //dummy socket, active, null auth allowed, no ssl
  53     daemon_serviceloop(sock, 1, malloc(0), 1, 0);
  54
  55     return 0;
  56 }