Fix various memory leaks, as noted by Merkil/cppcheck

4 files changed, 19 insertions, 7 deletions

diff --git a/src/graphics.c b/src/graphics.c
index 6f46c57..3d51cb6 100644
--- a/src/graphics.c
+++ b/src/graphics.c
@@ -111,6 +111,7 @@ pixel *ptif_unpack(void *datain, int size, int *w, int *h){
 		free(green_chan);
 		free(blue_chan);
 		free(undata);
+		free(result);
 		return NULL;
 	}
 	if(i != (width*height)*3){
@@ -119,6 +120,7 @@ pixel *ptif_unpack(void *datain, int size, int *w, int *h){
 		free(green_chan);
 		free(blue_chan);
 		free(undata);
+		free(result);
 		return NULL;
 	}
 	memcpy(red_chan, undata, width*height);
diff --git a/src/interface.c b/src/interface.c
index 3370883..379da11 100644
--- a/src/interface.c
+++ b/src/interface.c
@@ -5337,10 +5337,12 @@ int save_filename_ui(pixel *vid_buf)
 	int x0=(XRES+BARSIZE-xsize)/2,y0=(YRES+MENUSIZE-ysize)/2,b=1,bq,mx,my;
 	int idtxtwidth, nd=0, imgw, imgh, save_size;
 	void *save_data;
+	char *savefname = NULL;
+	char *filename = NULL;
 	pixel *old_vid=(pixel *)calloc((XRES+BARSIZE)*(YRES+MENUSIZE), PIXELSIZE);
 	pixel *save_tmp;
 	pixel *save_data_image;
-	pixel *save = calloc((XRES/3)*(YRES/3), PIXELSIZE);
+	pixel *save = NULL;//calloc((XRES/3)*(YRES/3), PIXELSIZE);
 	ui_edit ed;
 
 	save_data = build_save(&save_size, 0, 0, XRES, YRES, bmap, fvx, fvy, signs, parts);
@@ -5412,8 +5414,8 @@ int save_filename_ui(pixel *vid_buf)
 			if(b && !bq)
 			{
 				FILE *f = NULL;
-				char *savefname = malloc(strlen(ed.str)+5);
-				char *filename = malloc(strlen(LOCAL_SAVE_DIR)+strlen(PATH_SEP)+strlen(ed.str)+5);
+				savefname = malloc(strlen(ed.str)+5);
+				filename = malloc(strlen(LOCAL_SAVE_DIR)+strlen(PATH_SEP)+strlen(ed.str)+5);
 				sprintf(filename, "%s%s%s.cps", LOCAL_SAVE_DIR, PATH_SEP, ed.str);
 				sprintf(savefname, "%s.cps", ed.str);
 			
@@ -5446,6 +5448,7 @@ int save_filename_ui(pixel *vid_buf)
 					}
 				}
 				fclose(f);
+				
 			}
 		}
 
@@ -5468,6 +5471,8 @@ savefin:
 	free(save_data);
 	free(old_vid);
 	free(save);
+	if(filename) free(filename);
+	if(savefname) free(savefname);
 	return 0;
 }
 
diff --git a/src/main.c b/src/main.c
index 8fc0a72..c9761dd 100644
--- a/src/main.c
+++ b/src/main.c
@@ -637,7 +637,8 @@ int parse_save(void *save, int size, int replace, int x0, int y0, unsigned char
 	m = calloc(XRES*YRES, sizeof(int));
 
 	// make a catalog of free parts
-	memset(pmap, 0, sizeof(pmap));
+	//memset(pmap, 0, sizeof(pmap)); "Using sizeof for array given as function argument returns the size of pointer."
+	memset(pmap, 0, sizeof(unsigned)*(XRES*YRES));
 	for (i=0; i<NPART; i++)
 		if (parts[i].type)
 		{
@@ -3404,7 +3405,7 @@ int main(int argc, char *argv[])
 			if (sdl_mod&(KMOD_CAPS))
 				strappend(uitext, " [CAP LOCKS]");
 			if (GRID_MODE)
-				sprintf(uitext, "%s [GRID: %d]", uitext, GRID_MODE);
+				sprintf(uitext, "%s [GRID: %d]", uitext, GRID_MODE); //TODO: Undefined behavior: variable is used as parameter and destination in sprintf().
 #ifdef INTERNAL
 			if (vs)
 				strappend(uitext, " [FRAME CAPTURE]");
diff --git a/src/misc.c b/src/misc.c
index 4fc616b..8983f1f 100644
--- a/src/misc.c
+++ b/src/misc.c
@@ -470,8 +470,8 @@ int register_extension()
 	LONG rresult;
 	HKEY newkey;
 	char *currentfilename = exe_name();
-	char *iconname;
-	char *opencommand;
+	char *iconname = NULL;
+	char *opencommand = NULL;
 	iconname = malloc(strlen(currentfilename)+6);
 	opencommand = malloc(strlen(currentfilename)+13);
 	sprintf(iconname, "%s,-102", currentfilename);
@@ -536,6 +536,10 @@ int register_extension()
 	}
 	RegCloseKey(newkey);
 
+	if(iconname) free(iconname);
+	if(opencommand) free(opencommand);
+	if(currentfilename) free(currentfilename);
+	
 	return 1;
 #elif defined(LIN32) || defined(LIN64)
 	char *currentfilename = exe_name();