malloc problem

elfxx

i want to declare a pointer in function a() and malloc, init it in b(char* pointer).
but i can not get what i want, why?

#include <stdlib.h>
#include <stdio.h>
void a();

void b(char *c);
main()
{
  a();
}

void a()
{
  char * c;
  b(c);
  printf("%s",c);
}

void b(char* c)
{
  c=(char*)malloc(sizeof(char)*4);
  *c='a';
  *(c+1)='B';
  *(c+2)='\0';       
}

the output is not "aB".

elfxx

i've fixed it,

Dragonfly

memory leak in u code hehe.