diff options
Diffstat (limited to 'hostnames.c')
-rw-r--r-- | hostnames.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/hostnames.c b/hostnames.c new file mode 100644 index 0000000..33729e0 --- /dev/null +++ b/hostnames.c @@ -0,0 +1,27 @@ +#include <stdio.h> +#include <netdb.h> +#include <arpa/inet.h> +#include <stdlib.h> + +int main(int argc, char **argv) +{ + if (argc != 2) { + fprintf(stderr, "Usage: %s <domain-name>\n", argv[0]); + exit(1); + } + + struct hostent* he; + + he = gethostbyname(argv[1]); + + if (!he) { + fputs("Error, could not resolve.\n", stderr); + exit(1); + } + + char str[INET_ADDRSTRLEN]; + inet_ntop(AF_INET, he->h_addr, str, INET_ADDRSTRLEN); + + printf("%s\n", str); + return 0; +} |