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Check for empty string before printing in console

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This commit is contained in:
Gustaf Alhäll 2024-10-07 15:48:42 +02:00
parent 64df782287
commit 455ffec1e4
2 changed files with 23 additions and 4 deletions
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5
src/dedicated/i_system.c
View file

@ -1035,6 +1035,9 @@ void I_OutputMsg(const char *fmt, ...)
va_start(argptr,fmt);
len = vsnprintf(NULL, 0, fmt, argptr);
va_end(argptr);
if (len == 0)
return;
txt = malloc(len+1);
va_start(argptr,fmt);
vsprintf(txt, fmt, argptr);
@ -1134,7 +1137,7 @@ void I_OutputMsg(const char *fmt, ...)
if (!framebuffer)
fprintf(stderr, "%s", txt);
#ifdef HAVE_TERMIOS
if (consolevent && txt[strlen(txt)-1] == '\n')
if (consolevent && txt[len-1] == '\n')
{
write(STDOUT_FILENO, tty_con.buffer, tty_con.cursor);
ttycon_ateol = true;

22
src/sdl/i_system.c
View file

@ -840,9 +840,16 @@ static void I_RegisterChildSignals(void)
void I_OutputMsg(const char *fmt, ...)
{
size_t len;
char txt[8192];
char *txt;
va_list argptr;
va_start(argptr,fmt);
len = vsnprintf(NULL, 0, fmt, argptr);
va_end(argptr);
if (len == 0)
return;
txt = malloc(len+1);
va_start(argptr,fmt);
vsprintf(txt, fmt, argptr);
va_end(argptr);
@ -876,7 +883,10 @@ void I_OutputMsg(const char *fmt, ...)
DWORD bytesWritten;
if (co == INVALID_HANDLE_VALUE)
{
free(txt);
return;
}
if (GetFileType(co) == FILE_TYPE_CHAR && GetConsoleMode(co, &bytesWritten))
{
@ -892,11 +902,16 @@ void I_OutputMsg(const char *fmt, ...)
if (oldLength > 0)
{
LPVOID blank = malloc(oldLength);
if (!blank) return;
if (!blank)
{
free(txt);
return;
}
memset(blank, ' ', oldLength); // Blank out.
oldLines = malloc(oldLength*sizeof(TCHAR));
if (!oldLines)
{
free(txt);
free(blank);
return;
}
@ -941,7 +956,7 @@ void I_OutputMsg(const char *fmt, ...)
if (!framebuffer)
fprintf(stderr, "%s", txt);
#ifdef HAVE_TERMIOS
if (consolevent && txt[strlen(txt)-1] == '\n')
if (consolevent && txt[len-1] == '\n')
{
write(STDOUT_FILENO, tty_con.buffer, tty_con.cursor);
ttycon_ateol = true;
@ -953,6 +968,7 @@ void I_OutputMsg(const char *fmt, ...)
fflush(stderr);
#endif
free(txt);
}
//