hi there,
it would be greatful if u help,i have been having this problem,i am making a program in c and connecting the to database mysql
the program is like this

#include<stdlib.h>
#include<stdio.h>
#include "include/mysql.h"
#include<string.h>


MYSQL mysql;
MYSQL_RES *res;
MYSQL_ROW row;


int ipdel()
{
char sql[]="delete from IPMaster where IP_Address ='" ;
char ip1[25];
char *ip;

int temp;

mysql_init(&mysql);
if(mysql_real_connect(&mysql,"localhost","project" ,"hi",NULL,0,NULL,0)==NULL)
{
printf("Can't connect to MySQL\n Reason :%s ",
mysql_error(&mysql));
}

if(mysql_select_db(&mysql,"Status")!=0)
{
printf("Can't open the Database :%s",
mysql_error(&mysql));
}
printf("Enter the IP Address to be Deleted :");
scanf("%s",&ip1);
ip=ip1;
strcat(sql,ip);
strcat(sql,"'");
mysql_real_query(&mysql,sql,100);
mysql_close(&mysql);

return(0);
}

IP_Address is varchar(25) it is giving the segmentation fault after it deletes the entry from the table. and program terminates. it throws the SIGSEGV signal upon deletion could anybody help how to avoid this segmentation fault