From 00cf8e7fb86259b422efebdc732e27df9c4feb60 Mon Sep 17 00:00:00 2001
From: Bastian Dehn <hhaalo@arcor.de>
Date: Sun, 19 Jul 2015 12:34:55 +0200
Subject: [PATCH] sortiert Dateien nach Groesse

---
 discspan.c | 37 ++++++++++++++++++++++++++-----------
 1 file changed, 26 insertions(+), 11 deletions(-)

diff --git a/discspan.c b/discspan.c
index 1b1abe1..7fb0b4d 100644
--- a/discspan.c
+++ b/discspan.c
@@ -86,17 +86,25 @@ void splitter(const char *input, char *output, const char *rest, unsigned long l
 	printf("Restlicher Platz in Bytes(%s): %lld (%lld %c)\n", output, splitgroesse, humanread, einheit);
 }
 
-int cmpfunc(const void * a, const void * b)
+struct file_size
 {
-	if(*(long long unsigned int*)a < *(long long unsigned int*)b)
+	char name[255];
+	long long unsigned int fsize;
+};
+
+int cmpfunc(const void * filea, const void * fileb)
+{
+	long long unsigned int a = ((const struct file_size*)filea)->fsize;
+	long long unsigned int b = ((const struct file_size*)fileb)->fsize;
+	if(a < b)
 		return 1;
-	if(*(long long unsigned int*)a > *(long long unsigned int*)b)
+	if(a > b)
 		return -1;
-	if(*(long long unsigned int*)a == *(long long unsigned int*)b)
+	if(a == b)
 		return 0;
 }
 
-long long unsigned int * filesize_sort(const char *input, const char *output)
+void filesize_sort(const char *input, const char *output)
 {
 	FILE *in; FILE *out;
 	char pfad[255];
@@ -104,21 +112,29 @@ long long unsigned int * filesize_sort(const char *input, const char *output)
 	int lines = 0;
 
 	in = fopen(input, "r");
+	out = fopen(output, "w");
 
 	while(fscanf(in, "%[^\n]\n", pfad) == 1)
 	{
 		lines++;		
 	}
 	fseek(in, 0L, SEEK_SET);
-	long long unsigned int fsize[lines];
+	struct file_size fs[lines -1];
 	lines = 0;
 	while(fscanf(in, "%[^\n]\n", pfad) == 1)
 	{
 		stat(pfad, &st);
-		fsize[lines++] = st.st_size;
+		strcpy(fs[lines].name, pfad);
+		fs[lines++].fsize = st.st_size;
+	}
+	qsort(fs, lines, sizeof(struct file_size), cmpfunc);
+	int i;
+	for(i = 0; i < lines; i++)
+	{
+		fprintf(out, "%s\n", fs[i].name);
 	}
-	qsort(fsize, lines, sizeof(unsigned long long), cmpfunc);
-	return fsize;
+	fclose(in);
+	fclose(out);
 }
 
 void usage()
@@ -180,8 +196,7 @@ int main(int argc, char *argv[])
 		}
 	}
 
-	long long unsigned int *fsort = filesize_sort(input, rest);
-	filecopy(input, rest);
+	filesize_sort(input, rest);
 	while(exists(rest) == 0)
 	{
 		sprintf(outname, "%s%03d",output , num++);
-- 
2.39.5