[android-porting] variable parameter function problem

[sanju]

Hi All,

Good Morning Folks, i have a small problem in hand not sure if it has
anything to do with android platform as such ...
i have found that if we have a variable argument function and from
within the variable argument function you call up any other function
having two parameters then the second parameter address is offset by
-0x10... if you guys find any problem with code please let me know,
any suggestions and pointer are welcome ...

in the below sample code the parameter temp in the function strMan is
offset ...

#include <unistd.h>
#include <android/log.h>
#include <pthread.h>
#include <stdio.h>


void strMan(char* str, char* temp)
{
   __android_log_print(ANDROID_LOG_INFO, "hello-sample",  "before
string manipulation %s", temp);
 //the address of temp is offset by -0x10
   strcpy(temp, str);
   __android_log_print(ANDROID_LOG_INFO, "hello-sample",  "after
string manipulation %s", temp);
}

void varfunc(char* str,...)
{
    va_list listOfFileElement;
     char* temp = NULL;
       char str1[30]={0};
   __android_log_print(ANDROID_LOG_INFO, "hello-sample",  "inside var
func");

   va_start( listOfFileElement, str );

   temp = str;

   while(temp != 0)
   {
       memset(str1,0,30);

       __android_log_print(ANDROID_LOG_INFO, "hello-sample",  "inside
loop for %s", str1);

       strMan(temp,str1);
       __android_log_print(ANDROID_LOG_INFO, "hello-sample",  "after
loop  %s", str1);
       temp = (char*) va_arg( listOfFileElement, char* );
   }
}


int main(int argc, char* argv[])
{
   char* hStr  = NULL;
   char* hStr1 = NULL;
   char* hStr2 = NULL;
   hStr = (hMyStruct)calloc(1,30);
   hStr1 = (hMyStruct)calloc(1,30);
   hStr2 = (hMyStruct)calloc(1,30);

   strcpy(hStr,"Sanjeeth");

   strcpy(hStr1,"Ganapathy");

   strcpy(hStr2,"Sanju");

    varfunc(hStr,hStr1,hStr2);
   return 1;
}

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