Hi im new to the C language and I dont understant why im getting a Segmentation fault. Please help.

twi.c
insert
Code:
#include "twi.h"

/*char* readInput
 *return the entire line
 */
char* getLine()
{
  char *temp;
  temp = (char*)malloc(sizeof(char[176]));
  fgets(temp,176,stdin);
  return temp;
}

/*void print
 *accpet a struct twi
 *Display info in twi
 */
void print(tData input)
{
  printf("@%s %s %s %s\n", input->name, input->date, input->time, input->msg);
}

/*char* findMsg
 *accept char*
 *return char* the msg in the string which is 3 isspace away.
 */
char* findMsg(char *input)
{
  char *p;
  p = input;
  int count = 0;
  while(isspace(*p) || count != 3)
    {
      if(isspace (*p))
    count++;    
      ++p;
    };
   char *p2 = input;
  int run;
  run = (p-input);
  while(run!=0)
    {
      *p2++;
      run--;
    }
  return p2;
}

/*int make
 *create a struct using char* provide
 *return int for checking
 */
int make(tData temp, char* input)
{
  int check;
  //create temporary variable
  char nameSize[15];
  char timeSize[10];
  char dateSize[10];
  check =  sscanf(input, "%s %s %s", nameSize,dateSize,timeSize);
  //allocate memory depending on length of char
  temp->name = (char*)malloc(sizeof(strlen(nameSize)));
  temp->date = (char*)malloc(sizeof(strlen(dateSize)));
  temp->time = (char*)malloc(sizeof(strlen(timeSize)));
  temp->msg = (char*)malloc(sizeof(strlen(findMsg(input))));
  //copying into struct
  strcpy(temp->name, nameSize);
  strcpy(temp->date, dateSize);
  strcpy(temp->time, timeSize);
  strcpy(temp->msg, findMsg(input)); 
  // printf("%s %s %s %s",temp->name,temp->date,temp->time, temp->msg);
  if(check == 3)
    return check;
  else
    return 0;
}

p3.c
insert
Code:
#include <stdio.h>
#include <stdlib.h>
#include "twi.h"

main()
{

  tData t[100];
  int i = 0;
  char* str;
  int check = 3;
  t[0] = (struct twi*)malloc(sizeof(char[300])); 
  str = getLine();
  while(make(t[i],str) == 3)
    {  
      str = getLine();
      i++;
      // t[i] = (struct twi*)malloc(sizeof(struct twi)); 
    
    }
  int x;
  for(x = 0; x < i-1; x++)
    print(t[x]);
  
}