通過gethostbyaddr來獲取計算機的名稱
阿新 • • 發佈：2019-01-25
{
unsigned long ddd = inet_addr(*argv);
if(ddd != INADDR_NONE)
{
host=gethostbyaddr((char*)&ddd,4,AF_INET);
}
else
{
host=gethostbyname(*argv);
}
if(host==NULL)
{
fprintf(stderr,
return1;
}
printf("Official host name %s ",host->h_name);
printf("Name aliases:");
for(alias=host->h_aliases;*alias!=NULL;alias++)
printf("%s ,",*alias);
printf(" Ip address:");
printf("%s ,",inet_ntoa(*(struct in_addr *)(*alias)));
}
unsigned long ddd = inet_addr(*argv); if(ddd != INADDR_NONE) { 
host=gethostbyaddr((char*)&ddd,4,AF_INET); } else { host=gethostbyname(*argv); } if(host==NULL) { fprintf(stderr, return1; } printf("Official host name %s ",host->h_name); printf("Name aliases:"); for(alias=host->h_aliases;*alias!=NULL;alias++) printf("%s ,",*alias); printf(" Ip address:"); printf("%s ,",inet_ntoa(*(struct in_addr *)(*alias))); }