Script started on Thu Feb 13 13:45:18 2003
 [root@Fizzgig /root]# cd C
[root@Fizzgig C]# cat makefile
bytecount: bytecount.o sortedprint.o
	gcc bytecount.o sortedprint.o -o bytecount

bytecount.o: bytecount.c bytecount.h
	gcc -c bytecount.c

sortedprint.o: sortedprint.c bytecount.h
	gcc -c sortedprint.c
[root@Fizzgig C]# cat bytecount.h

int bytes[256][2]; /* possible bytes with count [0] and byte value [1]*/

/* in bytecount.c */
void usage();  
void loadBytesArray();

/* in sortedprint.c */
void sortBytesArray();
void printBytesArray();


[root@Fizzgig C]# cat bytecount.c
/*bytecount.c                                                    */
/*Given a file, prints to the screen the sorted frquency         */
/*  of each byte in that file.                                   */
/*                                                               */
/*This module deals primarily with file I/O.                     */
/*                                                               */
/*Author: Zach Tomaszewski                                       */
/*Date: 13 February                                              */

#include "bytecount.h"
#include <stdio.h>  //only module dealing with i/o 
FILE *fileInp;
short verbose = 0; /* print processing info? true(1) or false(0) */


int main(int argc, char *argv[]) {
  int i; /* temp loop counter */

  if (argc > 3 || (argc == 2 && strcmp(argv[1], "-h") == 0) ){
    /*too many arguments or request for help */
    usage();
  }else if (argc > 2) { /* two arguments given */
    if (strcmp(argv[1], "-v") == 0) {
       fileInp = fopen(argv[2], "rb");
       verbose = 1;
    }else {
       usage();
    }
  }else if (argc > 1) { /* one argument given */
    fileInp = fopen(argv[1], "rb");
  }else {
    /* no args; use stdin */
    fileInp = stdin;
  }

  if (fileInp==NULL) {
    puts("Error: Could not open given input file.");
    exit(1);
  }
  
  loadBytesArray();
  sortBytesArray();
  printBytesArray();

  close(fileInp);
}


/*Using the file in *fileInp, loads bytes[][] with a frequency count. */

void loadBytesArray(){
  int ch;  /*read-in char */
  int i;   /*loop counter */

  /*init bytes[] */
  i = 0;
  while (i < 256) {
    bytes[i][0] = 0;  /* for frequency */
    bytes[i][1] = i;  /* for byte value */
    i++;
  }

  /*load array with file contents */
  ch = getc(fileInp);
  while (!feof(fileInp) ){
    if (verbose) { putchar(ch); }
    bytes[ch][0]++;    
    ch = getc(fileInp);
  }

  /*show unsorted array for debugging*/
  if (verbose) {
    printf("\nUnsorted:");
    printBytesArray();
  }
}


/* Gives a usage message for this program */
void usage() 
{
 puts("");
 puts("Bytecount returns the frequency of each byte in a given file.");  
 puts("Enter the name of a single file to process as a command line argument");
 puts("or else pipe/redirect data through standard input.");
 puts("\nUsage:  bytecount [-hv] [filename] \n");
 puts("-v\t verbose. Gives debugging information such as unsorted input");
 puts("-h\t help.  Prints this help message.");
 puts("");
 exit(0);
}


[root@Fizzgig C]# cat sortedprint.c
/*sortedprint.c                                                  */
/*Part of bytecount, this module deals primarily with            */
/* --sorting the bytes array based on count frequency            */
/* --printing the final count of the sorted bytes array          */
/*                                                               */
/*Author: Zach Tomaszewski                                       */
/*Date: 13 February                                              */

#include "bytecount.h"


/*Sort the bytes array based on the count of each byte */

void sortBytesArray(){
  int s, temp, temp2, highest;  /* for sorting */
  register int i;

  /*sort by finding next highest frequecy... */
  for (s = 0; s < 256; s++){
    temp = 0; temp2 = 0; highest = 0;
    i = 0;
    for (i=s; i < 256; i++){
      if (bytes[i][0] > bytes[highest][0]){
        highest = i;
      }
    }
    /*... and inserting it in order at the beginning */
    if (bytes[s][0] < bytes[highest][0]) {
      temp = bytes[s][0];
      temp2 = bytes[s][1];
      bytes[s][0] = bytes[highest][0];
      bytes[s][1] = bytes[highest][1];
      bytes[highest][0] = temp;
      bytes[highest][1] = temp2;
    }  
  }
}


/* Prints the bytes array to the screen.               */
/* Only prints character if they have a count > 0      */

void printBytesArray(){
  int s, i;          //loop counters 
  long totalBytes = 0;

  i = 0;
  for (s = 0; s < 256; s++){
    if (bytes[s][0] > 0){
      if (i++ % 4 == 0) { puts(""); }
      printf("%3d(", bytes[s][1]);
        if (bytes[s][1] >= 32 && bytes[s][1] <= 126){ //printable
           printf("%c", bytes[s][1]);
        }else{ //unprintable
           printf(" ");
        }
      printf(") %d \t", bytes[s][0]);
      totalBytes += bytes[s][0];
    }
  }
  printf("\nTotal bytes: %d\n\n", totalBytes);
}

[root@Fizzgig C]# make
gcc -c bytecount.c
gcc -c sortedprint.c
gcc bytecount.o sortedprint.o -o bytecount
[root@Fizzgig C]# bytecount se.txt

101(e) 16 	 32( ) 13 	114(r) 8 	116(t) 6 	
 99(c) 5 	100(d) 5 	115(s) 5 	 44(,) 3 	
111(o) 3 	117(u) 3 	105(i) 2 	 40(() 1 	
 41()) 1 	 46(.) 1 	 68(D) 1 	 70(F) 1 	
 80(P) 1 	 83(S) 1 	 98(b) 1 	104(h) 1 	
110(n) 1 	118(v) 1 	120(x) 1 	
Total bytes: 81

[root@Fizzgig C]# bytecount poly.txt

 32( ) 53 	 49(1) 14 	 51(3) 8 	 50(2) 6 	
 53(5) 5 	 10( ) 2 	 48(0) 2 	 55(7) 2 	
 57(9) 2 	 52(4) 1 	
Total bytes: 95

[root@Fizzgig C]# bytecount rand.bin

 17( ) 2 	 55(7) 2 	159( ) 2 	210( ) 2 	
  7( ) 1 	  0( ) 1 	 26( ) 1 	 38(&) 1 	
 41()) 1 	 47(/) 1 	 50(2) 1 	 53(5) 1 	
 71(G) 1 	 77(M) 1 	 82(R) 1 	 87(W) 1 	
 92(\) 1 	102(f) 1 	110(n) 1 	111(o) 1 	
120(x) 1 	127( ) 1 	135( ) 1 	147( ) 1 	
151( ) 1 	153( ) 1 	161( ) 1 	162( ) 1 	
172( ) 1 	177( ) 1 	179( ) 1 	181( ) 1 	
193( ) 1 	207( ) 1 	208( ) 1 	209( ) 1 	
  4( ) 1 	218( ) 1 	222( ) 1 	224( ) 1 	
229( ) 1 	230( ) 1 	232( ) 1 	233( ) 1 	
234( ) 1 	255( ) 1 	
Total bytes: 50

[root@Fizzgig C]# bytecount msdev.exe

255( ) 153329 	  0( ) 53295 	103(g) 3208 	119(w) 2744 	
141( ) 2194 	 97(a) 1553 	 15( ) 1523 	142( ) 1419 	
117(u) 1394 	205( ) 1339 	240( ) 1288 	 87(W) 1252 	
136( ) 1179 	104(h) 1143 	 85(U) 1097 	128( ) 1097 	
236( ) 1059 	247( ) 1034 	140( ) 1010 	239( ) 992 	
  7( ) 967 	153( ) 960 	130( ) 921 	  5( ) 903 	
 96(`) 798 	112(p) 726 	 61(=) 709 	235( ) 702 	
182( ) 694 	102(f) 682 	135( ) 653 	120(x) 633 	
  1( ) 608 	 38(&) 581 	101(e) 554 	204( ) 553 	
 20( ) 550 	143( ) 548 	  3( ) 546 	244( ) 530 	
 16( ) 523 	 56(8) 518 	 68(D) 517 	 32( ) 517 	
 77(M) 496 	 21( ) 483 	248( ) 481 	100(d) 477 	
111(o) 454 	245( ) 445 	105(i) 429 	147( ) 420 	
241( ) 419 	 64(@) 413 	110(n) 406 	116(t) 401 	
127( ) 398 	  8( ) 382 	  4( ) 377 	242( ) 369 	
 19( ) 349 	 11( ) 349 	 51(3) 346 	237( ) 341 	
188( ) 335 	 18( ) 320 	114(r) 317 	 17( ) 316 	
 67(C) 313 	  2( ) 313 	115(s) 303 	109(m) 293 	
187( ) 292 	 84(T) 283 	146( ) 273 	 69(E) 261 	
108(l) 247 	 80(P) 228 	 13( ) 226 	192( ) 207 	
215( ) 203 	170( ) 194 	 44(,) 193 	 88(X) 190 	
174( ) 182 	125(}) 169 	 86(V) 160 	133( ) 157 	
 63(?) 155 	 81(Q) 154 	151( ) 152 	 22( ) 152 	
 30( ) 150 	 57(9) 150 	  9( ) 148 	129( ) 144 	
 62(>) 143 	234( ) 138 	 71(G) 132 	 65(A) 132 	
 83(S) 128 	212( ) 123 	 99(c) 121 	 98(b) 121 	
181( ) 118 	121(y) 116 	 31( ) 116 	175( ) 113 	
173( ) 105 	113(q) 103 	 48(0) 100 	176( ) 94 	
 10( ) 93 	 37(%) 92 	246( ) 90 	 79(O) 88 	
  6( ) 87 	 82(R) 83 	 23( ) 82 	 12( ) 81 	
 25( ) 78 	 40(() 77 	 76(L) 76 	 53(5) 75 	
216( ) 72 	 27( ) 67 	 46(.) 67 	254( ) 66 	
 60(<) 63 	 52(4) 60 	118(v) 60 	148( ) 59 	
 26( ) 59 	224( ) 57 	232( ) 57 	 95(_) 55 	
 66(B) 55 	160( ) 54 	183( ) 54 	144( ) 50 	
 34(") 48 	 14( ) 47 	 89(Y) 46 	107(k) 43 	
 28( ) 42 	 72(H) 41 	 73(I) 41 	225( ) 41 	
250( ) 40 	 78(N) 38 	 42(*) 38 	 36($) 36 	
 55(7) 36 	206( ) 36 	 33(!) 35 	 24( ) 35 	
137( ) 34 	196( ) 33 	 54(6) 33 	 70(F) 33 	
221( ) 32 	222( ) 32 	 43(+) 32 	 29( ) 31 	
194( ) 31 	162( ) 30 	106(j) 30 	131( ) 29 	
149( ) 28 	252( ) 28 	177( ) 27 	 49(1) 27 	
152( ) 27 	168( ) 27 	 41()) 27 	 35(#) 25 	
253( ) 25 	139( ) 24 	208( ) 24 	145( ) 24 	
 74(J) 23 	126(~) 23 	161( ) 22 	134( ) 21 	
 45(-) 20 	195( ) 19 	200( ) 19 	 93(]) 19 	
223( ) 19 	178( ) 18 	122(z) 18 	214( ) 17 	
 50(2) 17 	 92(\) 16 	238( ) 16 	191( ) 16 	
203( ) 15 	184( ) 15 	231( ) 15 	 39(') 15 	
220( ) 14 	189( ) 14 	132( ) 14 	251( ) 14 	
150( ) 13 	 58(:) 13 	193( ) 13 	198( ) 12 	
227( ) 12 	 47(/) 12 	 75(K) 12 	199( ) 11 	
213( ) 10 	157( ) 10 	230( ) 9 	164( ) 9 	
 94(^) 9 	179( ) 8 	 90(Z) 8 	156( ) 8 	
159( ) 8 	123({) 8 	124(|) 8 	169( ) 8 	
211( ) 8 	228( ) 7 	172( ) 7 	233( ) 7 	
180( ) 7 	243( ) 7 	218( ) 7 	138( ) 7 	
190( ) 6 	166( ) 6 	 59(;) 6 	165( ) 6 	
217( ) 6 	202( ) 5 	158( ) 5 	219( ) 4 	
210( ) 4 	209( ) 4 	154( ) 3 	207( ) 3 	
163( ) 3 	186( ) 3 	249( ) 3 	185( ) 3 	
226( ) 2 	201( ) 2 	229( ) 1 	167( ) 1 	
Total bytes: 270406

[root@Fizzgig C]# exit

Script done on Thu Feb 13 13:50:03 2003