Function hostent_cpy

proxy.c:94–169

copies a hostent structure*, returns 0 on success, <0 on error*/

/* copies a hostent structure*, returns 0 on success, <0 on error*/
int hostent_cpy(struct hostent *dst, struct hostent* src)
{
	unsigned int len,len2, i, r;
	int ret;

	/* start copying the host entry.. */
	/* copy h_name */
	len=strlen(src->h_name)+1;
	dst->h_name=(char*)pkg_malloc(sizeof(char) * len);
	if (dst->h_name) strncpy(dst->h_name,src->h_name, len);
	else{
		ser_error=ret=E_OUT_OF_MEM;
		goto error;
	}

	/* copy h_aliases */
	len=0;
	if (src->h_aliases)
		for (;src->h_aliases[len];len++);
	dst->h_aliases=(char**)pkg_malloc(sizeof(char*)*(len+1));
	if (dst->h_aliases==0){
		ser_error=ret=E_OUT_OF_MEM;
		pkg_free(dst->h_name);
		goto error;
	}
	memset((void*)dst->h_aliases, 0, sizeof(char*) * (len+1) );
	for (i=0;i<len;i++){
		len2=strlen(src->h_aliases[i])+1;
		dst->h_aliases[i]=(char*)pkg_malloc(sizeof(char)*len2);
		if (dst->h_aliases[i]==0){
			ser_error=ret=E_OUT_OF_MEM;
			pkg_free(dst->h_name);
			for(r=0; r<i; r++)	pkg_free(dst->h_aliases[r]);
			pkg_free(dst->h_aliases);
			goto error;
		}
		strncpy(dst->h_aliases[i], src->h_aliases[i], len2);
	}
	/* copy h_addr_list */
	len=0;
	if (src->h_addr_list)
		for (;src->h_addr_list[len];len++);
	dst->h_addr_list=(char**)pkg_malloc(sizeof(char*)*(len+1));
	if (dst->h_addr_list==0){
		ser_error=ret=E_OUT_OF_MEM;
		pkg_free(dst->h_name);
		for(r=0; dst->h_aliases[r]; r++)	pkg_free(dst->h_aliases[r]);
		pkg_free(dst->h_aliases);
		goto error;
	}
	memset((void*)dst->h_addr_list, 0, sizeof(char*) * (len+1) );
	for (i=0;i<len;i++){
		dst->h_addr_list[i]=(char*)pkg_malloc(sizeof(char)*src->h_length);
		if (dst->h_addr_list[i]==0){
			ser_error=ret=E_OUT_OF_MEM;
			pkg_free(dst->h_name);
			for(r=0; dst->h_aliases[r]; r++)	pkg_free(dst->h_aliases[r]);
			pkg_free(dst->h_aliases);