Thread: pointer problem

I am trying to read a file into a single array. For some reason, I cannot get a pointer, s1, to point to the beginning of the array. Here is my code:

Code:

#include<stdio.h>
#include<string.h>

#define BUFFER_SIZE 30
#define BIG_BUFFER 1024
#define TRUNCATE_BUF 100

int main(void)
{
   int i = 0 ;
   
   char file_string_buf[BIG_BUFFER] ;
   char *s1 = file_string_buf ;
   char *s2 = "cpu" ;
   char truncate_string_buf[TRUNCATE_BUF] ;

   FILE * infile ;
   FILE * outfile ;

   infile  = fopen("/proc/cpuinfo", "r" );
   outfile = fopen("cpuinfo.txt", "w" );

   fprintf( outfile, "\n" ) ;
   /*s1 = file_string_buf ;*/  

   while (fgets( file_string_buf, BIG_BUFFER, infile) != NULL ) 
         printf("%s", s1 ) ; 

    /*    fprintf(outfile, "%s", file_string_buf ) ;*/
      
      s1 = file_string_buf ;  /*
   
   printf("s2 = %s\n", s2) ;
   printf("s1 = %s\n", s1 ) ;
 
   printf("\ncpuinfo.txt created\n" ) ;

   printf("\n%s\n", strstr(s1,s2)) ;


   fclose(infile) ;
   fclose(outfile) ;

   return(0) ;

}

As you can see, the while loop pulls the file info into a buffer called file_string_buf . I also assign s1 to point to file_string_buf at the beginning and after the file is read in. What's the problem??? Do I need to reset the file_string_buf pointer??? I don't know.


Thanks