static int try_etcpath(const char *const *files,
ExtlTryConfigFn *tryfn, void *tryfnparam)
{
const char *const *file=NULL;
int i, ret, ret2=EXTL_TRYCONFIG_NOTFOUND;
char *path, *colon, *dir;
if(sessiondir!=NULL){
for(file=files; *file!=NULL; file++){
ret=do_try(sessiondir, *file, tryfn, tryfnparam);
if(ret>=0)
return ret;
if(ret2==EXTL_TRYCONFIG_NOTFOUND)
ret2=ret;
}
}
path=scriptpath;
while(path!=NULL){
colon=strchr(path, ':');
if(colon!=NULL){
dir=extl_scopyn(path, colon-path);
path=colon+1;
}else{
dir=extl_scopy(path);
path=NULL;
}
if(dir!=NULL){
if(*dir!='\0'){
for(file=files; *file!=NULL; file++){
ret=do_try(dir, *file, tryfn, tryfnparam);
if(ret>=0){
free(dir);
return ret;
}
if(ret2==EXTL_TRYCONFIG_NOTFOUND)
ret2=ret;
}
}
free(dir);
}
}
return ret2;
}
int
main (int argc, char **argv)
{
struct addrinfo hints, *res;
trace_t trace;
set_program_name (argv[0]);
/* Parse command line */
iu_argp_init ("traceroute", program_authors);
argp_parse (&argp, argc, argv, 0, NULL, NULL);
/* Hostname lookup first for better information */
memset (&hints, 0, sizeof (hints));
hints.ai_family = AF_INET;
hints.ai_flags = AI_CANONNAME;
if ((hostname == NULL) || (*hostname == '\0')
|| getaddrinfo (hostname, NULL, &hints, &res))
error (EXIT_FAILURE, 0, "unknown host");
memcpy (&dest, res->ai_addr, res->ai_addrlen);
dest.sin_port = htons (opt_port);
getnameinfo (res->ai_addr, res->ai_addrlen, addrstr, sizeof (addrstr),
NULL, 0, NI_NUMERICHOST);
printf ("traceroute to %s (%s), %d hops max\n",
res->ai_canonname, addrstr, opt_max_hops);
freeaddrinfo (res);
trace_init (&trace, dest, opt_type);
int hop = 1;
while (!stop)
{
if (hop > opt_max_hops)
exit (EXIT_SUCCESS);
do_try (&trace, hop, opt_max_hops, opt_max_tries);
trace_inc_ttl (&trace);
trace_inc_port (&trace);
hop++;
}
exit (EXIT_SUCCESS);
}
static int try_dir(const char *const *files, const char *cfdir,
ExtlTryConfigFn *tryfn, void *tryfnparam)
{
const char *const *file;
int ret, ret2=EXTL_TRYCONFIG_NOTFOUND;
for(file=files; *file!=NULL; file++){
if(cfdir==NULL)
ret=tryfn(*file, tryfnparam);
else
ret=do_try(cfdir, *file, tryfn, tryfnparam);
if(ret>=0)
return ret;
if(ret2==EXTL_TRYCONFIG_NOTFOUND)
ret2=ret;
}
return ret2;
}
s32 get_tracert_list (char *argv, char* option, u32 *count, tracert_cfg_item_t *item_buf,char *info1,char *info2)
{
trace_t trace;
struct tracert_info tracert_info;
int i = 0;
int ret;
int fd;
struct sockaddr_in loc_addr;
stop = 0;
/* Parse command line */
parse_opt(argv);
if (geteuid () != 0)
return -1;
ret = tracert_opt_parse(option, &tracert_info, info1);
if(0 != ret)
{
return 0;
}
dest.sin_addr = *(struct in_addr *) tracehost->h_addr;
dest.sin_family = AF_INET;
dest.sin_port = htons (tracert_info.port);
//给trace结构体的源地址赋初值
if(NULL != tracert_info.host_addr)
{
//测试源地址是否存在
loc_addr.sin_family=AF_INET;
loc_addr.sin_addr.s_addr=inet_addr(tracert_info.host_addr);
loc_addr.sin_port=htons(SRCPORT);
fd = socket(AF_INET, SOCK_RAW, IPPROTO_ICMP);
if(bind(fd,(struct sockaddr*)&loc_addr,sizeof(loc_addr))) {
close(fd);
sprintf(info1,"Please select a local address!");
return 1;
}
close(fd);
trace.from.sin_addr.s_addr = inet_addr(tracert_info.host_addr);
sprintf(info1, "traceroute from %s to %s (%s), %d hops max", tracert_info.host_addr, tracehost->h_name, inet_ntoa (dest.sin_addr), tracert_info.max_hops);
}
else
{
sprintf(info1, "traceroute to %s (%s), %d hops max", tracehost->h_name, inet_ntoa (dest.sin_addr), tracert_info.max_hops);
}
trace_init (&trace, dest, opt_type, tracert_info.hop, tracert_info.host_addr);
while (!stop)
{
item_buf[i].rowid = tracert_info.hop;
if (tracert_info.hop > tracert_info.max_hops)
break;
ret = do_try (&trace, tracert_info.hop, tracert_info.max_hops, tracert_info.max_tries, tracert_info.wait_time, &(item_buf[i]));
if(ret == 1)
{
sprintf(info2, "sendto: Network is unreachable!");
return 1;
}
if(ret < 0)
return -1;
trace_inc_ttl (&trace);
trace_inc_port (&trace);
tracert_info.hop++;
i++;
(*count)++;
}
return 0;
}
