client.c

//#include	"unpipc.h"		/* our header */
#include	"remotedb.h"		/* generated by rpcgen */
#include "stdlib.h"
#include "stdio.h"
#include "string.h"
	// CLIENT *clnt_create(
	// 		char *host,
	// 		u_long prog, 
	// 		u_long vers,
	// 		char *proto);

char * left(char *dst,char *src, int n)
{
    char *p = src;
    char *q = dst;
    int len = strlen(src);
  //      printf("src %s\n",src);
   // printf("dst %s\n",dst);

  //      printf("%d",n);
    if(n>len) 
    	n = len;
    /*p += (len-n);*/   /*从右边第n个字符开始*/
    int i = 0;
    while(n--) 
    	*(q++) = *(p++);
    *(q++)='\0'; /*有必要吗？很有必要*/

 //   printf("src %s\n",src);
 //       printf("dst %s\n",dst);
    return dst;
}

	char *forma(char * buf)
	{
		int i;
		char *buff = strdup(buf);
		while(buff[0] == ' ')
		{
			//	printf("aaa\n");			
				//memcpy(buff,buff,strlen(buff)-1); 
			for(i=0;i<strlen(buff)-1;i++)
			{
				buff[i]=buff[i+1];
			}
			buff[i] = '\0';
		//		printf("%d",strlen(buff));
				//	printf("%s\n",buff);
		}
		return buff;
	}

	char * split(char * buf)
	{
		int i;
		char *space;
		char apre[30] = "";
		char *buff;
	//	printf("split\n");
	//	printf("buf %s\n",buf);
	//	printf("%d\n",strlen(buff));
		//memset(buff,0,40);
	//	printf("%d\n",strlen(buf));
		//memcpy(buff,buf,strlen(buf));
		buff = strdup(buf);
	//	strcpy(buff,buf);
	//	printf("buff %s\n",buff);
		if(space = strchr(buff,' '))
		{
			while((strlen(buff)-strlen(space))==0)
			{
							
				//memcpy(buff,buff,strlen(buff)-1); 
				for(i=0;i<strlen(buff)-1;i++)
				{
					buff[i]=buff[i+1];
				}
				buff[i] = '\0';
		//		printf("%d",strlen(buff));
				space = strchr(buff,' ');
				//	printf("%s\n",buff);
			}
	//		printf("%d\n",strlen(buff)-strlen(space));
	//		printf("%s\n",space);
			left(apre,buff,strlen(buff)-strlen(space));
			memset(buf,0,strlen(buf));
			memcpy(buf,apre,strlen(apre));
	//		memcpy(buf,)
			printf("buff   %s \n",buff);
			//buff = apre;
			//buff = pre;
			//printf("%s\n",space);
			//memset(pre,0,strlen(pre));
			//memcpy(pre,buff,strlen(buff)-strlen(space));
			printf("aaa%s\n",apre);
			//memset(buff,0,strlen(buff));
	//		printf("aaa  %s\n",buff);
	//		printf("aaa  %s\n",space);
	//		printf("aaa  %s\n",apre);
			//memcpy(buff,pre,strlen(buff));
			//printf("aaa%s\n",buff);
			if(space)
			{
				return space;

			}
			else 
				return NULL;
		}
		else
			return NULL;
	}
void failevent()
{
	printf("rpc fail, maybe the server is not open\n");
	exit(0);
}
void help()
{
			printf("****************************************************\n");
	printf("add <phonenumber> <name> | add the name and number\n");
	printf("delete <name> | delete the name and number\n");
	printf("query <str>   | look up the people whose name is start at str\n");
	printf("list          | appear the list of name/number\n");
	printf("quit          | quit\n");
	printf("help		  | help\n");
			printf("****************************************************\n");
}
int main(int argc, char **argv)
{
	CLIENT		*cl;
	remotedb_in	in;
	remotedb_in2 in2;
	remotedb_out	*outp;
	char c;
	int i;
	FILE *temp;
	char buff[128] = "";
	char *addstr = "add";
	char *deletestr = "delete";
	char *querystr = "query";
	char *liststr = "list";
	char *space;
	char *flag;
	int length;
	char *namestr;
	char *numstr;
//	XDR *xhandle;



	// if (argc != 3)
	// 	err_quit("usage: client <hostname> <integer-value>");

	cl = clnt_create("0.0.0.0", REMOTEDB_PROG, REMOTEDB_VERS, "tcp");
	//printf("test\n");
	in.arg1 = argv[1];
	if((outp = remotedbproc_1(&in, cl))==NULL)
		failevent();
			printf("****************************************************\n");
	printf("%s",outp->res1);
			printf("****************************************************\n");
	if(strcmp(outp->res1,"rpc not authrize\n")==0)
		exit(0);
	help();
	while(1)
	{
	fflush(stdin);
	gets(buff);
//	in.arg1 = buff;



	// if ( (outp = remotedbproc_1(&in, cl)) == NULL)
	// 	;//err_quit("%s", clnt_sperror(cl, argv[1]));

	// printf("result: %s\n", outp->res1);

	if(space = split(buff))
	{
	//	memset(flag,0,strlen(flag));
		//	memcpy(flag,buff,strlen(buff)-strlen(space));
		//	printf("%d\n",strlen(buff)-strlen(space) );
		flag = buff;
	//		printf("%s\n",space);
	//		printf("%s\n",flag);
//			printf("%s\n",in.arg1);
			if(strcmp(flag,"add")==0)
			{
	//			printf("hehehe\n");
				if(namestr = split(space))
				{
				//	memset(numstr,0,strlen(numstr));
				//		memcpy(numstr,space,strlen(space)-strlen(namestr));
					space = forma(space);
					namestr = forma(namestr);
					// strcat(space,"\n");
					// strcat(namestr,"\n");
			//		printf("aaaaaaa\n");
			//		printf("space %s\n",space);
			//		printf("namestr %s\n",namestr);
					in2.arg1 = space;
					in2.arg2 = namestr;
					if ( (outp = add_to_database_1(&in2, cl)) == NULL)
	 	failevent();//err_quit("%s", clnt_sperror(cl, argv[1]));

			printf("****************************************************\n");
					printf(" %s\n", outp->res1);
			printf("****************************************************\n");
				}



		//		if ( (outp = add_to_database_1(&in, cl)) == NULL)
		//;//err_quit("%s", clnt_sperror(cl, argv[1]));

			//	printf("result: %s\n", outp->res1);
			}
			if(strcmp(flag,"delete")==0)
			{
				space = forma(space);
				in.arg1 = space;
				if ( (outp = remove_from_database_1(&in, cl)) == NULL)
		failevent();//err_quit("%s", clnt_sperror(cl, argv[1]));
			printf("****************************************************\n");

				printf(" %s\n", outp->res1);
			printf("****************************************************\n");
			}
			if(strcmp(flag,"query")==0)
			{	
				space = forma(space);
				in.arg1 = space;
				if ( (outp = lookup_name_1(&in, cl)) == NULL)
				failevent();//err_quit("%s", clnt_sperror(cl, argv[1]));
			printf("****************************************************\n");

				printf(" %s\n", outp->res1);			
			printf("****************************************************\n");
			}
	}
	else
	{
		if(strcmp(buff,"list")==0)
		{
			printf("****************************************************\n");
				if ( (outp = list_1(&in, cl)) == NULL)
					failevent();//err_quit("%s", clnt_sperror(cl, argv[1]));

				printf(" %s\n", outp->res1);	
			printf("****************************************************\n");

		}
		if(strcmp(buff,"quit")==0)
		{
				//if ( (outp = list_1(&in, cl)) == NULL)
					failevent();//err_quit("%s", clnt_sperror(cl, argv[1]));

				//printf("result: %s\n", outp->res1);	
					exit(0);
		}
		if(strcmp(buff,"help")==0)
		{
			help();
		}
	}


	
	}

exit(0);
}