unexpected out put from char **name, c - c

Question

Am in my way to practice how to use the pcre regex library, to match regular expression/pattern against a given data/buffer.Then if there is match, i have to load the matched string to may array/list. but, when i print my list/array (using a for loop), the output is unexpected/wrong. pls see how the logic works:
1.first i have to load patterns/regex.....i have a function to do this and returns patterns in an array/list.
2.iterate on each pattern and search for match in a data/buffer....pcre library handles this business.
3.if match exists, push/fill to a list/array
4.print out all matches with in loop
my sample code is:
code.c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pcre.h>
#define NUMBER 3
#define MAX_GROUPS 200
char *data = "Jun 12 05 12:24:48 100.101.102.103 end";
char **load_patern()
{
char **regex_array = malloc (sizeof (char *) * NUMBER);
regex_array[0] = "(\\w+\\s\\d+\\s\\d+\\s\\d+:\\d+:\\d+)"; //pattern to match date time
regex_array[1] = "(\\d+.\\d+.\\d+.\\d+)"; //pattern for ip_adress
regex_array[2] = "(end)";//pattern for "end"
return regex_array;
}
int main()
{
char **patern_list = load_patern();
int t,i,size,rc,p,re_err_offset,re_vce[MAX_GROUPS];
char sBuffer[512];
char *pLasts = NULL;
pcre *re_compiled;
pcre_extra *re_extra;
const char *re_err_str;
char *token,*logg,*next,*match_str;
char **struct_list = malloc (sizeof (char *) * NUMBER);
for(t=0;t<3;t++) //3 is number of patterns, patern_list size
{
snprintf(sBuffer, sizeof(sBuffer), "%s",data);
pLasts = sBuffer;
re_compiled = pcre_compile(patern_list[t], 0, &re_err_str,
&re_err_offset, NULL);
re_extra = pcre_study(re_compiled, 0, &re_err_str);
next = pLasts;
size = strlen(pLasts);
rc = pcre_exec(re_compiled, re_extra, next, size, 0, 0, re_vce, MAX_GROUPS);
if(rc>0) //if match exists
{
next[re_vce[3]] = '\0';
match_str = next + re_vce[2];
struct_list[t] = match_str;
printf("data at [%d]:%s\n",t,struct_list[t]);//this prints correctly
}
}
//but,here am trying to print each match stored in struct_list[], but it fails to display correctly.
for(p=0; p<3; p++)
{
printf("loop_one: [%d]----%s\n",p,struct_list[p]);
}
return 0;
}
The out put from a loop iterating on p,should be:
loop_one: 0----Jun 12 05 12:24:48
loop_one: 1----100.101.102.103
loop_one: 2----end
any thing i miss?