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Diffstat (limited to 'ncurses/trace/visbuf.c')
-rw-r--r--ncurses/trace/visbuf.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/ncurses/trace/visbuf.c b/ncurses/trace/visbuf.c
index 5f95a6bc50c0..590e42306f51 100644
--- a/ncurses/trace/visbuf.c
+++ b/ncurses/trace/visbuf.c
@@ -1,5 +1,5 @@
/****************************************************************************
- * Copyright 2019,2020 Thomas E. Dickey *
+ * Copyright 2019-2021,2023 Thomas E. Dickey *
* Copyright 2001-2016,2017 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
@@ -43,7 +43,7 @@
#include <tic.h>
#include <ctype.h>
-MODULE_ID("$Id: visbuf.c,v 1.52 2020/02/02 23:34:34 tom Exp $")
+MODULE_ID("$Id: visbuf.c,v 1.54 2023/05/27 20:13:10 tom Exp $")
#define NUM_VISBUFS 4
@@ -67,7 +67,9 @@ static const char r_brace[] = StringOf(R_BRACE);
static char *
_nc_vischar(char *tp, unsigned c LIMIT_ARG)
{
- if (c == '"' || c == '\\') {
+ if (tp == NULL) {
+ return NULL;
+ } else if (c == '"' || c == '\\') {
*tp++ = '\\';
*tp++ = (char) c;
} else if (is7bits((int) c) && (isgraph((int) c) || c == ' ')) {
@@ -283,7 +285,7 @@ _nc_viswibuf(const wint_t *buf)
/* use these functions for displaying parts of a line within a window */
NCURSES_EXPORT(const char *)
-_nc_viscbuf2(int bufnum, const NCURSES_CH_T * buf, int len)
+_nc_viscbuf2(int bufnum, const NCURSES_CH_T *buf, int len)
{
char *result = _nc_trace_buf(bufnum, (size_t) BUFSIZ);
@@ -371,7 +373,7 @@ _nc_viscbuf2(int bufnum, const NCURSES_CH_T * buf, int len)
}
NCURSES_EXPORT(const char *)
-_nc_viscbuf(const NCURSES_CH_T * buf, int len)
+_nc_viscbuf(const NCURSES_CH_T *buf, int len)
{
return _nc_viscbuf2(0, buf, len);
}