/****************************************************************************
- * Copyright (c) 2001-2003,2007 Free Software Foundation, Inc. *
+ * Copyright 2020,2023 Thomas E. Dickey *
+ * Copyright 2001-2008,2012 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 *
#include <ctype.h>
-MODULE_ID("$Id: varargs.c,v 1.5 2007/04/21 23:21:23 tom Exp $")
+MODULE_ID("$Id: varargs.c,v 1.13 2023/06/24 13:41:46 tom Exp $")
#ifdef TRACE
atUnknown = 0, atInteger, atFloat, atPoint, atString
} ARGTYPE;
-#define VA_INT(type) ival = va_arg(ap, type)
+#define VA_INT(type) ival = (int) va_arg(ap, type)
#define VA_FLT(type) fval = va_arg(ap, type)
#define VA_PTR(type) pval = (char *)va_arg(ap, type)
#define VA_STR(type) sval = va_arg(ap, type)
NCURSES_EXPORT(char *)
_nc_varargs(const char *fmt, va_list ap)
{
- static char dummy[] = "";
-
char buffer[BUFSIZ];
const char *param;
int n;
if (fmt == 0 || *fmt == '\0')
- return dummy;
+ return NULL;
if (MyLength == 0)
MyBuffer = typeMalloc(char, MyLength = BUFSIZ);
if (MyBuffer == 0)
- return dummy;
+ return NULL;
*MyBuffer = '\0';
while (*fmt != '\0') {
param = buffer;
switch (used) {
case atInteger:
- sprintf(buffer, "%d", ival);
+ _nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer))
+ "%d", ival);
break;
case atFloat:
- sprintf(buffer, "%f", fval);
+ _nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer))
+ "%f", fval);
break;
case atPoint:
- sprintf(buffer, "%p", pval);
+ _nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer))
+ "%p", pval);
break;
case atString:
param = _nc_visbuf2(1, sval);
break;
+ case atUnknown:
default:
- strcpy(buffer, "?");
+ _nc_STRCPY(buffer, "?", sizeof(buffer));
break;
}
MyLength += strlen(param) + 2;
MyBuffer = typeRealloc(char, MyLength, MyBuffer);
- sprintf(MyBuffer + strlen(MyBuffer), ", %s", param);
+ if (MyBuffer != 0) {
+ _nc_SPRINTF(MyBuffer + strlen(MyBuffer),
+ _nc_SLIMIT(MyLength - strlen(MyBuffer))
+ ", %s", param);
+ }
}
}
used = atUnknown;
}
}
- return (MyBuffer);
+ return (MyBuffer ? MyBuffer : NULL);
}
#else
-empty_module(_nc_varargs)
+EMPTY_MODULE(_nc_varargs)
#endif