X-Git-Url: https://git.llucax.com/z.facultad/75.06/jacu.git/blobdiff_plain/69bddb46f46871d27bcf797cd6fae14430802380..64cd44addd33d589c56bf7c6b669f3a9b2c2a410:/src/statichuff/statichuff.c?ds=sidebyside

diff --git a/src/statichuff/statichuff.c b/src/statichuff/statichuff.c
index e608bb2..6d6de7f 100644
--- 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;
-}