Sorry

[z.facultad/75.06/jacu.git] / src / statichuff / statichuff.c

diff --git a/src/statichuff/statichuff.c b/src/statichuff/statichuff.c
index e608bb20f27cd146805293be653d2231cbbc8cd7..6d6de7f613f078696870adb19d79fbbed25151ac 100644 (file)
--- a/src/statichuff/statichuff.c
+++ b/src/statichuff/statichuff.c
@@ -42,10 +42,10 @@ void shuff_cpynode(SHUFFNODE *node1, SHUFFNODE *node2)
        node1->rchild = node2->rchild;  
 }
 
-int shuff_compnode(SHUFFNODE *node1, SHUFFNODE *node2)
+int shuff_compnode(const void *node1, const void *node2)
 {      
-       if (node1->freq < node2->freq) return 1;
-       if (node1->freq > node2->freq) return -1;
+       if (((SHUFFNODE*)node1)->freq < ((SHUFFNODE*)node2)->freq) return 1;
+       if (((SHUFFNODE*)node1)->freq > ((SHUFFNODE*)node2)->freq) return -1;
        return 0;
 }
 
@@ -121,7 +121,6 @@ SHUFFNODE *shuff_buildtree(SHUFFNODE *list, int listcount)
        SHUFFNODE *lastsymbol = list+(listcount-1);
        SHUFFNODE *node1,*node2;
 
-       /* Ordenamos inicialmente la inputlist para tomar las dos freqs min */
        while (lastsymbol > list) {             
                /* Ordeno la lista por frecuencia descendente */
                qsort(list,listcount,sizeof(SHUFFNODE),shuff_compnode);                         
@@ -192,8 +191,8 @@ void shuff_buildcodes(SHUFFCODE *table, SHUFFNODE *node, int level, int code)
 
 
 
-int shuff_encode_symbols(t_freq *ftable, SHUFFCODE *ctable, char* inputfile, char *outputfile) {
-
+int shuff_encode_symbols(t_freq *ftable, SHUFFCODE *ctable, char* inputfile, char *outputfile)
+{
        FILE *fpsource,*fpdest;
        int symbol,i;
        unsigned long int sourcesize;
@@ -256,6 +255,11 @@ int shuff_encode_file(char *inputfile, char *outputfile)
        /* Encodeo byte per byte */
        shuff_encode_symbols(freqtable,codetable,inputfile,outputfile);
        
+       /* Free up memory baby yeah */
+       free(freqtable);
+       free(inputlist);        
+       free(codetable);
+       
        return 1;
 }
 
@@ -317,50 +321,10 @@ int shuff_decode_file(char *inputfile, char *outputfile)
        fclose(fpsource);
        fclose(fpdest);
        
+       /* Free up memory baby yeah */
+       free(ftable);
+       free(inputlist);
+       
        return 1;
 }
 
-int main(int argc, char* argv[])
-{      
-       int cflag = 0;
-       int dflag = 0;
-       int tflag = 0;
-       long int volumesize = 0;
-       int ch;
-                       
-       while ((ch = getopt(argc, argv, "cdt:")) != -1) { 
-                
-               switch (ch) { 
-                       case 'c': cflag = 1; 
-                                         break;
-                       
-                       case 'd': dflag = 1; 
-                                         break; 
-                       
-                       case 't': tflag = 1; 
-                                         volumesize = atoi(optarg);                                      
-                                         break; 
-                       
-                       default: fprintf(stderr, "Usage: %s [-cdt] sourcefile targetfile\n", argv[0]); 
-                                        return(2);
-               }
-       }
-               
-       if ( (argc == 1) || (cflag & dflag) || !(cflag | dflag) || ((argc - optind) < 2) ) {
-               fprintf(stderr, "Usage: %s [-cdt] sourcefile targetfile\n", argv[0]); 
-               if ((tflag == 1) && (volumesize <= 0)) fprintf(stderr,"Error: The volume size must be a non-zero value\n");
-               return (2);             
-       }
-               
-       if (cflag == 1) {
-               /* Comprimo */
-           return shuff_encode_file(argv[optind],argv[optind+1]);
-       }
-       
-       if (dflag == 1) { 
-               /* Descomprimo */
-               return shuff_decode_file(argv[optind],argv[optind+1]);
-       }
-               
-       return 0;
-}