From 6b7a2da599b044f4bafd7acd3d0936fd05c37741 Mon Sep 17 00:00:00 2001
From: Bastian Dehn <hhaalo@arcor.de>
Date: Thu, 26 Feb 2026 20:26:55 +0100
Subject: [PATCH] set all bits for dest zero

---
 src/rename.c | 35 ++++++++++++++++-------------------
 1 file changed, 16 insertions(+), 19 deletions(-)

diff --git a/src/rename.c b/src/rename.c
index f73d7e9..60ccc46 100644
--- a/src/rename.c
+++ b/src/rename.c
@@ -5,10 +5,13 @@
 
 char* escape(const char* src)
 {
-	size_t length = strlen(src);
 	char* dest = malloc(sizeof(char) * STR_MAX_LENGTH);
-	int destcounter = 0;
+	if (dest == NULL)
+		return NULL;
 
+	memset(dest, 0, STR_MAX_LENGTH);
+	int destcounter = 0;
+	size_t length = strlen(src);
 	for (size_t i = 0; i < length; i++) {
 		switch(src[i]) {
 		case SPACE:
@@ -27,17 +30,15 @@ char* escape(const char* src)
 		}
 	}
 
-	dest[destcounter] = '\0';
 	length = strlen(dest) + 1;
 	char* dest_tmp = realloc(dest, sizeof(char) * length);
-
 	if (dest_tmp == NULL) {
 		free(dest);
 		dest = NULL;
 		return NULL;
 	}
-
 	dest = dest_tmp;
+
 	return dest;
 }
 
@@ -54,20 +55,20 @@ char* rename_point(const char* src)
 		if (dest[i] != POINT)
 			break;
 	}
-
 	dest[length - point_count] = '\0';
+
 	length = strlen(dest) + 1;
 	char* dest_tmp = realloc(dest, sizeof(char) * length);
-
 	if (dest_tmp == NULL) {
 		free(dest);
 		dest = NULL;
 		return NULL;
 	}
-
 	dest = dest_tmp;
+
 	return dest;
 }
+
 char* rename_lower(const char* src)
 {
 	char* dest = rename_string(src);
@@ -82,13 +83,13 @@ char* rename_lower(const char* src)
 
 char* rename_string(const char* src)
 {
-	size_t length = strlen(src);
-	int dest_count = 0;
 	char* dest = malloc(sizeof(char) * STR_MAX_LENGTH);
-
 	if (dest == NULL)
 		return NULL;
 
+	memset(dest, 0, STR_MAX_LENGTH);
+	int dest_count = 0;
+	size_t length = strlen(src);
 	for (size_t i = 0; i < length; i++) {
 		if (src[i] == SPACE) {
 			dest[dest_count++] = '_';
@@ -125,29 +126,27 @@ char* rename_string(const char* src)
 		}
 	}
 
-	dest[dest_count] = '\0';
 	length = strlen(dest) + 1;
 	char* dest_tmp = realloc(dest, sizeof(char) * length);
-
 	if (dest_tmp == NULL) {
 		free(dest);
 		dest = NULL;
 		return NULL;
 	}
-
 	dest = dest_tmp;
+
 	return dest;
 }
 
 char* rename_revert(const char* src)
 {
 	size_t length = strlen(src);
-	int dest_count = 0;
 	char* dest = malloc(sizeof(char) * STR_MAX_LENGTH);
-
 	if (dest == NULL)
 		return NULL;
 
+	int dest_count = 0;
+	memset(dest, 0, STR_MAX_LENGTH);
 	for (size_t i = 0; i < length; i++) {
 		if (src[i] == '_') {
 			dest[dest_count++] = SPACE;
@@ -184,16 +183,14 @@ char* rename_revert(const char* src)
 		}
 	}
 
-	dest[dest_count] = '\0';
 	length = strlen(dest) + 1;
 	char* dest_tmp = realloc(dest, sizeof(char) * length);
-
 	if (dest_tmp == NULL) {
 		free(dest);
 		dest = NULL;
 		return NULL;
 	}
-
 	dest = dest_tmp;
+
 	return dest;
 }
\ No newline at end of file
-- 
2.47.3