From ca4fefc7a2feccd7a917ce99af8834efa457767e Mon Sep 17 00:00:00 2001
From: Bastian Dehn <hhaalo@arcor.de>
Date: Tue, 10 Feb 2026 20:31:25 +0100
Subject: [PATCH] fix read chunks from stdin

---
 src/xml.c | 35 ++++++++++++++++++-----------------
 src/xml.h |  4 ++--
 2 files changed, 20 insertions(+), 19 deletions(-)

diff --git a/src/xml.c b/src/xml.c
index 693cc42..763f71b 100644
--- a/src/xml.c
+++ b/src/xml.c
@@ -14,6 +14,7 @@
 #include "feierabend.h"
 
 #define MAX_STRING_LENGTH 36
+#define CHUCK_SIZE 32
 
 memFile* init_memFile() {
 	memFile* mem = malloc(sizeof(memFile));
@@ -21,42 +22,39 @@ memFile* init_memFile() {
 	if (mem == NULL)
 		return NULL;
 
-	mem->data = malloc(sizeof(char*));
-	mem->size = malloc(sizeof(size_t));
+	mem->data = NULL;
+	mem->size = 0;
 
 	return mem;
 }
 
 void free_memFile(memFile* mem) {
-	free(*mem->data);
 	free(mem->data);
-	free(mem->size);
 	mem->data = NULL;
-	mem->size = NULL;
 }
 
 void allocChunk(memFile* mem)
 {
-	*mem->size = 32;
-	char* tmpmem = realloc(mem->data, sizeof(mem->data) + (sizeof(char) * *mem->size));
+	mem->size += CHUCK_SIZE;
+	char* tmpmem = realloc(mem->data, sizeof(char) * mem->size);
 	if (tmpmem == NULL) {
 		free(mem);
 		return;
 	}
 
-	*mem->data = tmpmem;
+	mem->data = tmpmem;
 }
 
 void shrinkMem(size_t readed, memFile* mem)
 {
-	char* tmpmem = realloc(mem->data, sizeof(mem->data) + (sizeof(char) * readed + 1));
+	mem->size = readed;
+	char* tmpmem = realloc(mem->data, sizeof(char) * mem->size);
 	if (tmpmem == NULL) {
 		free(mem);
 		return;
 	}
 
-	tmpmem[readed + 1] = '\0';
-	*mem->data = tmpmem;
+	mem->data = tmpmem;
 }
 
 void readStdInIntoMemory(memFile* mem)
@@ -65,15 +63,18 @@ void readStdInIntoMemory(memFile* mem)
 
 	if (buf == NULL)
 		return;
-
+	
 	allocChunk(mem);
 	size_t read_size = 0;
+	size_t current_chunk = CHUCK_SIZE;
 	while(fread(buf, sizeof(char), 1, stdin) != 0) {
-		mem->data[read_size] = buf;
-		mem->size--;
+		mem->data[read_size] = *buf;
 		read_size++;
-		if (mem->size == 0)
+		current_chunk--;
+		if (current_chunk == 0) {
 			allocChunk(mem);
+			current_chunk = CHUCK_SIZE;
+		}
 	}
 	shrinkMem(read_size, mem);
 
@@ -358,7 +359,7 @@ void createEntry(int begin_hour,
 void readLastSaldo(memFile* mem, char* value)
 {
 	xmlInitParser();
-	xmlDocPtr xmldoc = xmlReadMemory(*mem->data, *mem->size, NULL, "UTF-8", 0);
+	xmlDocPtr xmldoc = xmlReadMemory(mem->data, mem->size, NULL, "UTF-8", 0);
 
 	if (xmldoc == NULL) {
 		printf("ERROR: could not open memstream\n");
@@ -446,7 +447,7 @@ void addEntry(const char* date,
 	free(xmlElemContent);
 	xmlElemContent = NULL;
 
-	xmlTextReaderPtr xmlreader = xmlReaderForMemory(*fileContent->data, *fileContent->size, NULL, "UTF-8", 0);
+	xmlTextReaderPtr xmlreader = xmlReaderForMemory(fileContent->data, fileContent->size, NULL, "UTF-8", 0);
 	xmlNodePtr xmlnode = NULL;
 
 	xmlTextWriterStartDocument(xmlwriter, "1.0", "UTF-8", NULL);
diff --git a/src/xml.h b/src/xml.h
index ea0d37d..e3a223a 100644
--- a/src/xml.h
+++ b/src/xml.h
@@ -2,8 +2,8 @@
 #define XML_H
 
 typedef struct {
-	char** data;
-	size_t* size;
+	char* data;
+	size_t size;
 } memFile;
 
 void initTimeAcount();
-- 
2.47.3