dns.c		dns.c
	skipping to change at line 21		skipping to change at line 21
	int main(int argc, char **argv)		int main(int argc, char **argv)
	{		{
	int i;		int i;
	char host[SZ_LINE];		char host[SZ_LINE];
	struct hostent *hostent;		struct hostent *hostent;
	if( argc > 1 )		if( argc > 1 )
	strcpy(host, argv[1]);		strcpy(host, argv[1]);
	else{		else{
	fprintf(stderr, "getting host name ...\n");		fprintf(stderr, "calling gethostname() ...\n");
	gethostname(host, SZ_LINE);		if( gethostname(host, SZ_LINE) == -1 ){
	fprintf(stderr, "host name is %s\n", host);		perror("gethostname");
			exit(1);
			}
			else{
			fprintf(stderr, "host name is %s\n", host);
			}
			}
			fprintf(stderr, "calling gethostbyname(host) ...\n");
			if( !(hostent = gethostbyname(host)) ){
			perror("gethostbyname");
			exit(1);
			}
			else{
			fprintf(stderr, "gethostbyname() succeeded\n");
	}		}
	fprintf(stderr, "getting host by name ...\n");		fprintf(stderr, "printing ip address(es) for this host ...\n");
	hostent = gethostbyname(host);
	fprintf(stderr, "printing ip addresses for this host\n");
	if( hostent ){		if( hostent ){
	for(i=0; hostent->h_addr_list[i]; i++){		for(i=0; hostent->h_addr_list[i]; i++){
	fprintf(stderr, "%x\n", *(int *)hostent->h_addr_list[i]);		fprintf(stderr, "%x\n", *(int *)hostent->h_addr_list[i]);
	}		}
	}		}
	else{		else{
	fprintf(stderr, "ERROR: can't look up: %s\n", host);		fprintf(stderr, "ERROR: can't look up: %s\n", host);
	}		}
	return(0);		return(0);
	}		}
End of changes. 2 change blocks.
	6 lines changed or deleted		17 lines changed or added
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