X-Git-Url: https://ncurses.scripts.mit.edu/?a=blobdiff_plain;f=ncurses%2Fbase%2Flib_screen.c;h=67fb421c8ab23247738313b6ef0053c06ac3865e;hb=c0e5fbfcce224693b3effdd295ee49b6b761b754;hp=d2f430225a2c3ffc7d89a8d7884dcc048b92a47d;hpb=88e7914acafc37f84af25b80f403eb4290e423d4;p=ncurses.git

diff --git a/ncurses/base/lib_screen.c b/ncurses/base/lib_screen.c
index d2f43022..67fb421c 100644
--- a/ncurses/base/lib_screen.c
+++ b/ncurses/base/lib_screen.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1998-2018,2019 Free Software Foundation, Inc.              *
+ * Copyright 2019-2020,2021 Thomas E. Dickey                                *
+ * Copyright 1998-2017,2018 Free Software Foundation, Inc.                  *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -41,7 +42,7 @@
 #define CUR SP_TERMTYPE
 #endif
 
-MODULE_ID("$Id: lib_screen.c,v 1.95 2019/05/04 20:31:31 tom Exp $")
+MODULE_ID("$Id: lib_screen.c,v 1.101 2021/06/26 20:43:19 tom Exp $")
 
 #define MAX_SIZE 0x3fff		/* 16k is big enough for a window or pad */
 
@@ -57,7 +58,7 @@ MODULE_ID("$Id: lib_screen.c,v 1.95 2019/05/04 20:31:31 tom Exp $")
 #define ARG_SLIMIT(name)	/* nothing */
 #endif
 
-#define CUR_SLIMIT _nc_SLIMIT(limit - (target - base))
+#define CUR_SLIMIT _nc_SLIMIT(limit - (size_t) (target - base))
 #define TOP_SLIMIT _nc_SLIMIT(sizeof(buffer))
 
 /*
@@ -66,7 +67,7 @@ MODULE_ID("$Id: lib_screen.c,v 1.95 2019/05/04 20:31:31 tom Exp $")
  * format.  It happens to be unused in the file 5.22 database (2015/03/07).
  */
 static const char my_magic[] =
-{'\210', '\210', '\210', '\210'};
+{'\210', '\210', '\210', '\210', 0};
 
 #if NCURSES_EXT_PUTWIN
 typedef enum {
@@ -440,7 +441,7 @@ read_win(WINDOW *win, FILE *fp)
 }
 
 static int
-read_row(char *source, NCURSES_CH_T * prior, NCURSES_CH_T * target, int length)
+read_row(char *source, NCURSES_CH_T *prior, NCURSES_CH_T *target, int length)
 {
     while (*source != '\0' && length > 0) {
 #if NCURSES_WIDECHAR
@@ -514,13 +515,13 @@ NCURSES_SP_NAME(getwin) (NCURSES_SP_DCLx FILE *filep)
      * Read the first 4 bytes to determine first if this is an old-format
      * screen-dump, or new-format.
      */
-    if (read_block(&tmp, 4, filep) < 0) {
+    if (read_block(&tmp, (size_t) 4, filep) < 0) {
 	returnWin(0);
     }
     /*
      * If this is a new-format file, and we do not support it, give up.
      */
-    if (!memcmp(&tmp, my_magic, 4)) {
+    if (!memcmp(&tmp, my_magic, (size_t) 4)) {
 #if NCURSES_EXT_PUTWIN
 	if (read_win(&tmp, filep) < 0)
 #endif
@@ -823,7 +824,7 @@ putwin(WINDOW *win, FILE *filep)
 	    attr_t attr;
 
 	    *buffer = '\0';
-	    if (!strncmp(name, "_pad.", 5) && !(win->_flags & _ISPAD)) {
+	    if (!strncmp(name, "_pad.", (size_t) 5) && !(win->_flags & _ISPAD)) {
 		continue;
 	    }
 	    switch (scr_params[y].type) {
@@ -948,7 +949,7 @@ NCURSES_SP_NAME(scr_restore) (NCURSES_SP_DCLx const char *file)
     T((T_CALLED("scr_restore(%p,%s)"), (void *) SP_PARM, _nc_visbuf(file)));
 
     if (_nc_access(file, R_OK) >= 0
-	&& (fp = fopen(file, BIN_R)) != 0) {
+	&& (fp = safe_fopen(file, BIN_R)) != 0) {
 	delwin(NewScreen(SP_PARM));
 	NewScreen(SP_PARM) = getwin(fp);
 #if !USE_REENTRANT
@@ -979,7 +980,7 @@ scr_dump(const char *file)
     T((T_CALLED("scr_dump(%s)"), _nc_visbuf(file)));
 
     if (_nc_access(file, W_OK) < 0
-	|| (fp = fopen(file, BIN_W)) == 0) {
+	|| (fp = safe_fopen(file, BIN_W)) == 0) {
 	result = ERR;
     } else {
 	(void) putwin(newscr, fp);
@@ -1006,7 +1007,7 @@ NCURSES_SP_NAME(scr_init) (NCURSES_SP_DCLx const char *file)
 	FILE *fp = 0;
 
 	if (_nc_access(file, R_OK) >= 0
-	    && (fp = fopen(file, BIN_R)) != 0) {
+	    && (fp = safe_fopen(file, BIN_R)) != 0) {
 	    delwin(CurScreen(SP_PARM));
 	    CurScreen(SP_PARM) = getwin(fp);
 #if !USE_REENTRANT